Organization and Staff (December 2022)
Director

Dr. TANAKA Manabu

1. Research Division of Materials Joining Process
1) Energy Control of Processing
Professor
Associate Professor
Assistant Professor
Specially Appointed Associate Professor
Guest Professor
Guest Professor
Guest Professor
Guest Professor
Guest Academic Staff
Guest Researcher

Dr. TANAKA Manabu
Dr. KOMEN Hisaya
Dr. TASHIRO Shinichi
Dr. LI Fang
Dr. NAKATA Kazuhiro
Dr. MITA Tsuneo
Dr. NISHIYAMA Hideya
Dr. HOSOI Koichi
Dr. XU Bin
Dr. FUJIYAMA Shoji

2) Energy Transfer Dynamics
Professor
Associate Professor
Assistant Professor
Guest Professor
Guest Professor

Dr. SETSUHARA Yuichi
Dr. TAKENAKA Kosuke
Dr. TOKO Susumu
Dr. ONO Kouichi
Dr. UCHIDA Giichiro

3) Micro Joining
Professor
Associate Professor
Guest Professor
Guest Professor
Guest Academic Staff
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher
Guest Researcher
Guest Researcher

Dr. NISHIKAWA Hiroshi
Dr. TATSUMI Hiroaki
Dr. TAKAHASHI Yasuo
Dr. CHAN Yon Cheong
Dr. ZHANG Ning
Dr. NAOE Takuya
Dr. JIN Zhi
Dr. WANG Jianhao
Dr. PU JuanDr. HAN Jiang

4) Laser Materials Processing
Professor
Associate Professor
Guest Professor
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher

Dr. TSUKAMOTO Masahiro
Dr. SATO Yuji
Dr. KIKUCHI Yasushi
Mr. TAKENAKA Keisuke
Ms. HIGASHINO Ritsuko
Mr. YOSHIDA Norio
Mr. TOKUMOTO Jumpei5) Advanced Engineering Science
Guest Professor

Dr. KATO Hidemi

2. Research Division of Materials Joining Mechanism
1) Welding Mechanism
Professor
Associate Professor *Assistant Professor
Assistant Professor
Specially Appointed Associate Professor
Guest Professor

Dr. ITO Kazuhiro
Dr. TAKAHASHI Makoto
Dr. YAMAMOTO Hajime
Dr. HONG Seong Min
Dr. ZHAO Bingbing
Dr. OGAWA Kazuhiro

2) Joint Interface Structure and Formation Mechanism
Professor
Assistant Professor
Assistant Professor
Specially Appointed Professor
Specially Appointed Associate Professor
Specially Appointed Associate Professor
Specially Appointed Associate Professor
Specially Appointed Assistant Professor
Guest Professor
Guest Professor
Guest Academic Staff
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher

Dr. FUJII Hidetoshi
Dr. YAMASHITA Takayuki
Dr. MIURA Takuya
Dr. USHIODA Kohsaku
Dr. MORISADA Yoshiaki
Dr. CHEN Juan
Dr. AOKI Yasuhiro
Dr. SHARMA Abhishek
Dr. NAGIRA Tomoya
Mr. KAWAI Teruaki
Mr. KAGIYA Kei
Dr. SHOTRI Rishabh
Mr. KAMAI Masayoshi
Mr. KAWAKUBO Takumi
Mr. AIBARA Takumi
Ms. WU Zexi
Mr. ITO Tetsuro3) Composite Materials Processing
Professor
Professor
Assistant Professor
Specially Appointed Assistant Professor
Specially Appointed Assistant Professor
Guest Professor
Guest Professor
Guest Professor
Guest Professor
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher
Specially Appointed Researcher

Dr. KONDOH Katsuyoshi
Dr. UMEDA Junko
Dr. KARIYA Shota
Dr. ISSARIYAPAT Ammarueda
Dr. BAHADOR Abdollah
Dr. MA Qian
Dr. MIURA Hideshi
Dr. YANG Yafeng
Dr. LI Shufeng
Mr. HORIE Mitsuo
Ms. FUJII Hiroko
Mr. MINAMITANI Ryoji
Mr. PETERSON Jack Edward

3. Research Division of Materials Joining Assessment
1) Joining Mechanics and Analyses
Professor
Associate Professor
Assistant Professor
Specially Appointed Assistant Professor
Specially Appointed Researcher
Guest Professor
Guest Researcher
2) Joining Design and Structuring
Professor

Dr. MA Ninshu
Dr. SERIZAWA Hisashi
Dr. GENG Peihao
Dr. WANG Qian
Mr. NARASAKI Kunio
Dr. LU Fenggui
Dr. WU Dongsheng
Dr. MIKAMI Yoshiki

3) Joining Metallurgical Evaluation
Professor
Associate Professor
Assistant Professor
Guest Researcher
4. Research Center for Additive Joining Application
Center Director, Professor
1) Green Additive Manufacturing
Associate Professor
Specially Appointed Researcher

Dr. IKEDA Rinsei
Dr. KADOI Kota
Dr. HOU Yuyang
Dr. SINGH Handa Sukhdeep
Dr. FUJII Hidetoshi
Dr. ABE Hiroya
Dr. LI Fei

2) Lithographic Additive Manufacturing
Professor
Assistant Professor

Dr. KIRIHARA Soshu
Dr. SPIRRETT Fiona

3) Additive Manufacturing Mechanism
Professor
Professor
Assistant Professor

Dr. KONDOH Katsuyoshi
Dr. UMEDA Junko
Dr. KARIYA Shota

4)Laser Additive Manufacturing
Professor
Associate Professor

Dr. TSUKAMOTO Masahiro
Dr. SATO Yuji

5)Advanced Additive Manufacturing
Professor
Assistant Professor
Guest Associate Professor
Specially Appointed Researcher

Dr. NAITO Makio
Dr. KOZAWA Takahiro
Dr. KAMITANI Masataka
Dr. KONDO Akira

5. Joint Interface Microstructure Characterization Room
Associate Professor

Dr. TAKAHASHI Makoto

6.Global D&I Promotion Office
Professor *Associate Professor
Assistant Professor *Assistant Professor *Assistant Professor *Technical Staff *Dr. UMEDA Junko
Ms. KATSUMATA Mihoko
Dr. HONG Seong Min
Dr. GENG Peihao
Dr. SPIRRETT Fiona
Ms. UEHARA Kunika

7. JFE Welding Research Alliance Laboratories
Director, Professor *Vice Director, Guest Professor
Professor *Professor *Professor *Professor *Associate Professor *Associate Professor *Dr. TANAKA Manabu
Dr. TAGAWA Tetsuya
Dr. FUJII Hidetoshi
Dr. ITO Kazuhiro
Dr. TSUKAMOTO Masahiro
Dr. MIKAMI Yoshiki
Dr. KADOI Kota
Dr. SATO Yuji

8. DAIHEN Welding and Joining Research Alliance Laboratories
Director, Professor *Dr. FUJII Hidetoshi
Vice Director, Professor *Dr. TANAKA Manabu
Vice Director, Guest Professor
Dr. ERA Tetsuo
Specially Appointed Professor
Dr. ASAI Satoru
Specially Appointed Assistant Professor
Dr. MATSUDA Natsume
Guest Associate Professor
Dr. KADOTA Keiji
Professor *Dr. ITO Kazuhiro
Professor *Dr. TSUKAMOTO Masahiro
Professor *Dr. SETSUHARA Yuichi
9. Nippon Steel Future Manufacturing Research Alliance Laboratories
Director, Professor *Dr. FUJII Hidetoshi
Vice Director, Guest Professor
Dr. FUJIMOTO Hiroki
Guest Professor
Dr. INOUE Hiroshige
Guest Researcher
Mr. OKADA Toru
Guest Researcher
Ms. JOTOKU Kana
Guest Researcher
Mr. WATANABE Koutarou
Guest Researcher
Mr. MATSUI Sho
Guest Researcher
Mr. NOMOTO Masashi
Professor *Dr. TANAKA Manabu
Professor *Dr. ITO Kazuhiro
Professor *Dr. MIKAMI Yoshiki
Associate Professor *Dr. KADOI Kota
Professor *Dr. SAIDA Kazuyoshi
Professor *Dr. HIRATA Hiroyuki
Professor *Dr. MORI Hiroaki
Professor *Dr. OGURA Tomo
Assistant Professor *Dr. YAMASHITA Shotaro
10. Osaka Fuji "Advanced Functional Processing" Joint Research Chair
Specially Appointed Professor
Dr. ABE Nobuyuki
Specially Appointed Assistant Professor
Mr. HAYASHI Yoshihiko
Specially Appointed Assistant Professor
Mr. MIZUTANI Masami
Specially Appointed Researcher
Mr. IKEDA Keiichirou
Guest Researcher
Mr. AZUMI Kazuyuki
Guest Researcher
Mr. TATSUMI Yoshihiro
Professor *Dr. TSUKAMOTO Masahiro
Associate Professor *Dr. SATO Yuji
11. Advanced Joint Production System Joint Research Chair
Specially Appointed Professor
Mr. MUKUDA Muneaki
Guest Researcher
Mr. AMASAKI Tetsuya
Guest Researcher
Mr. HARADA Naohiko
Guest Researcher
Mr. MURASE Keisuke
Professor *Dr. FUJII Hidetoshi
Specially Appointed Associate Professor *Dr. MORISADA Yoshiaki

12. Design & Engineering by Joint Inverse Innovation for Materials Architecture－ DEJI2MA Project －Leader, Professor *Dr. SETSUHARA Yuichi
Specially Appointed Professor
Dr. OHARA Satoshi
13. Global Collaborative Research Center for Computational Welding Science (CCWS)
Leader, Professor *Dr. MA Ninshu
Guest Professor
Dr. MURAKAWA Hidekazu
Guest Professor
Dr. HIRAOKA Kazuo
Guest Professor
Dr. LI ChangJiu
Guest Professor
Dr. YASUKI Tsuyoshi
Guest Professor
Dr. NAKAO Kazunari
Guest Professor
Dr. FUJIKUBO Masahiko
Guest Associate Professor
Dr. SHIBAHARA Masakazu
Associate Professor *Dr. SERIZAWA Hisashi
14. Joining Technology Hub
Leader, Professor *Professor *Professor *Associate Professor *Assistant Professor *Specially Appointed Professor
Specially Appointed Associate Professor *Specially Appointed Associate Professor *Specially Appointed Researcher *Guest Academic Staff *Researcher
Graduate School of Engineering, Professor *Graduate School of Engineering, Professor *Graduate School of Engineering, Professor *Graduate School of Engineering, Professor *Graduate School of Engineering, Associate Professor *Graduate School of Engineering, Associate Professor *Graduate School of Engineering, Associate Professor *Graduate School of Engineering, Assistant Professor *Dr. FUJII Hidetoshi
Dr. TANAKA Manabu
Dr. ITO Kazuhiro
Dr. SERIZAWA Hisashi
Dr. YAMASHITA Takayuki
Dr. USHIODA Kosaku
Dr. MORISADA Yoshiaki
Dr. AOKI Yasuhiro
Dr. SHARMA Abhishek
Mr. KAGIYA Kei
Mr. OGURA Takuya
Dr. HIROSE Akio
Dr. SAIDA Kazuyoshi
Dr. OHATA Mitsuru
Dr. SANO Tomokazu
Dr. OGURA Tomo
Dr. OGINO Yosuke
Dr. NOMURA Kazufumi
Dr. MATSUDA Tomoki

15. Co-Creation Consortium for Joining and Welding with Blue Diode Laser
Professor *Dr. TSUKAMOTO Masahiro
Associate Professor *Dr. SATO Yuji
Specially Appointed Professor *Dr. ABE Nobuyuki
Specially Appointed Researcher *Mr. TAKENAKA Keisuke
Specially Appointed Researcher *Ms. HIGASHINO Ritsuko
16. Industry Cooperation Office
Professor *Specially Appointed Professor* Supplementary Assignment

Dr. SETSUHARA Yuichi
Dr. SUGA Tetsuo

Transactions of JWRI, Vol.51, 2022
CONTENTSRESEARCH ACTIVITIES OF JWRI
Research Division of Materials Joining Process
Dep. of Energy Control of Processing ………………………………………………………………………….

1

Dep. of Energy Transfer Dynamics ……………………………………………………………………………….

2

Dep. of Micro Joining ……………..…………………………………………………………………………………… 3
Dep. of Laser Materials Processing ……………………………………………………………………………… 4
Research Division of Materials Joining Mechanism
Dep. of Welding Mechanism ……………………………………………………………………………………….. 5
Dep. of Joint Interface Structure and Formation Mechanism …..………………………………….

6

Dep. of Composite Materials Processing ...…………………………………………………………………..

7

Research Division of Materials Joining Assessment
Dep. of Joining Mechanics and Analyses …………………………………………………..……….…….….. 8
Dep. of Joining Design and Structuring …..……………………………….…………………..……………… 9
Dep. of Joining Metallurgical Evaluation ….………………………………………………….………………. 10
Research Center for additive Joining Application(RAJA)
Dep. of Green Additive Manufacturing .…………………………………………..…………….………….….. 11
Dep. of Lithographic Additive Manufacturing ………………………………………..…………..….….…. 12
Dep. of Additive Manufacturing Mechanism …………………………………….………………..………... 13
Dep. of Laser Additive Manufacturing ………………………………………………………………………….. 14
Dep. of Advanced Additive Manufacturing …………………………………………………………………… 15
Joint Interface Microstructure Characterization Room .……………………………..…………..….….….. 16
Global D&I Promotion Office ...…………………………………...……………………………..…………..….….….. 17
Osaka Fuji "Advanced Functional Processing" Joint Research Chair ………………………..…….…. 18
Design & Engineering by Joint Inverse Innovation for Materials Architecture－ DEJI2MA Project － …………………………………………………………………………………………………… 19

CONTRIBUTION TO OTHER ORGANIZATIONS ………………………………………..….….….……. 20

Research Division of Materials Joining Process, Dep. of Energy Control ofProcessing
Research summary
The main research subject is the development of the high density energy source for processing
advanced materials having special functions and properties. We undertake fundamental
investigations of the properties of the high energy source interacting with materials, and we study
advanced control techniques for optimizing the energy transport.
Major emphasis is placed on the generation, control and energy transport in arc plasmas, which
are a high density energy source which have been applied to a variety of materials processing
techniques such as welding, cutting, heating, high temperature processing, surface modificationand the creation of powders.

Research subjects(1) Generation and control of thermal plasmas, and their application to welding and joining
processes(2) Arc physics, molten pool behavior, and transport theory in fusion welding(3) Development of new arc electrodes based on the analysis of electrode-plasma interaction(4) Development of advanced high quality clean welding processes(5) Development of new generation welding and joining processes employing atmospheric pressureplasma(6) Control of arc discharge in lighting and electrical devices

Optical measurement of electron density and plasma
temperature during spray transfer and globular transfer in gas
metal arc welding process ((a) Electron density, (b) Spraytransfer, (c) Globular transfer). An addition of CO2 into shielding
gas causes constriction of arc current toward the arc axis, whichleads to globular transfer due to increase in arc pressure.

Numerical simulation on effects of constricted nozzle on arc phenomena in TIG
welding process ((a) Temperature distribution in conventional TIG welding, (b)Temperature distribution in TIG welding with a constricted nozzle, (c) Heat flux
to the anode surface). In TIG welding with a constricted nozzle, arc temperature
increases due to constriction of arc. Consequently, larger heat flux to the anodesurface is obtained compared with that of conventional TIG welding.

Major Papers
A. Kapil, T. Suga, M. Tanaka, A. Sharma, "Towards hybrid laser-arc based directed energy deposition:
Understanding bead formation through mathematical modeling for additive manufacturing", J. Manuf.
Process., (2022), 76, 457-474.
K. Ishida, S. Tashiro, K. Nomura, D. Wu, M. Tanaka, "Elucidation of arc coupling mechanism in plasma-MIG
hybrid welding process through spectroscopic measurement of 3D distributions of plasma temperature andiron vapor concentration", J. Manuf. Process., (2022), 77, 743-753.
S. Tashiro, S. Bin Mamat, A. B. Murphy, T. Yuji, M. Tanaka, "Numerical Analysis of Metal Transfer Process in
Plasma MIG Welding”, metals, (2022), 12, 326.
N. Q. Trinh, S. Tashiro, T. Suga, T. Kakizaki, K. Yamazaki, A. Lersvanichkool, H. V. Bui and M. Tanaka, “Metal
Transfer Behavior of Metal-Cored Arc Welding in Pure Argon Shielding Gas”, metals, 12 (2022), 1577.

1

Research Division of Materials Joining Process, Dep. of Energy Transfer Dynamics
Research summary
Our research activities encompass works on development of process control technologies of
surface and interface for advancement of materials joining science and processing technologies
through creation of novel process-energy sources (plasmas and particle beams), and span the range
of applications from to functionalization of materials to their process control. These research
activities are based on fundamental studies on energy transfer dynamics involved in a variety ofmaterials processing with process-energy sources.

Research subjects(1) Development of novel plasma sources and particle beams for advanced process technologies(CVD, PVD)
(2) Development of novel large-area, low-damage and high-density plasma sources for advanced
process control of functional materials(3) Development of novel large-area, low-damage and high-density plasma sources for advanced
process control of functional materials(4) Creation of softmaterial processing science for development of advanced green
nanotechnologies with inorganic/organic flexible hybrid structures(5) Studies on temporal and spatial control of discharge for development of innovative plasma
sources for plasma medicine

Development of innovative plasma source for plasma medicine(a) ICCD images of atmospheric RF plasmas(b) Frequency dependence of discharge breakdown voltage(c) Frequency dependence of O optical emission intensity

Low-damage and ultra-large-area plasma source withmultiple low inductance antenna modules

Major Papers
K. Takenaka, R. Machida, T. Bono, A. Jinda, S. Toko, G. Uchida , Y. Setsuhara, “Development of a non-thermal
atmospheric pressure plasma-assisted technology for the direct joining of metals with dissimilar materials”, J.
Manuf. Process., 75 (2022), 664-669.
S. Toko, M. Ideguchi, T. Haseagawa, T. Okumura, K. Kamataki, K. Takenaka, K. Koga, M. Shiratani, Y. Setsuhara,“Effect of gas flow rate and discharge volume on CO2 methanation with plasma catalysis”, Jpn. J. Appl. Phys.,64 (2022), SI1002.
S. Nunomura, K. Kamataki, T. Nagai, T. Misawa, S. Kawai, K. Takenaka, G. Uchida, K. Koga, “Plasma Synthesis of
Silicon Nanoparticles: From Molecules to Clusters and Nanoparticle Growth”, IEEE Open J. Nanotechnol., 3(2022), 94-100.
G. Uchida, K. Nagai, Y. Habu, J. Hayashi, Y. Ikebe, M. Hiramatsu, R. Narishige, N. Itagaki, M. Shiratani, Y.
Setsuhara “Nanostructured Ge and GeSn films by high-pressure He plasma sputtering for high-capacity Li ion
battery anodes” Sci Rep, 12(2022), 1742.

2Research Division of Materials Joining Process, Dep. of Micro Joining
Research summary
The main research objectives are for electronics packaging to develop advanced joint materials,
to establish advanced micro joining processes, and to elucidate the mechanisms of the micro joining
processes. Especially, the creation of the functional joint materials, the development of novel
advanced micro processes by various energy sources, the understanding of interfacial behaviors in
nano-/micro-scale, and the enhancement of the highly reliable joints based on the control ofinterfacial structure and performance are performed.

Research subjects(1) Development and evaluation of advanced micro joining process(2) Elucidation of micro joining phenomena and defect suppression(3) Control and analysis of microstructure at soldered interface(4) Development of eco-friendly fluxless soldering process using a reducing atmosphere(5) Formation of high heat-resistance joint using three-dimensional nanostructure(6) Simulation-based evaluation of micro joints nanostructure

Micro joining process using a transient liquid phase bonding (TLPB)
method(a)TLPB process and microstructure of joint using Sn-coated Cu particles(b)TLPB process and microstructure of joint using Sn-Bi solder particles +Cu particles
Microstructure of sintered joint using Ag nanoparticle paste(a)Serial sectioning of Ag sintered layer by FIB/SEM system(b)Reconstructed 3D image of Ag sintered layer(c)Reconstructed 3D pore distribution into Ag sintered layer

Major Papers

H. Tatsumi, H. Nishikawa, “Anisotropic highly conductive joints utilizing Cu-solder microcomposite structure
for high-temperature electronics packaging”, Mater. Des., 223 (2022), 111204.
H. Tatsumi, S. Kaneshita, Y. Kida, Y. Sato, M. Tsukamoto, H. Nishikawa, “I Highly efficient soldering of Sn-Ag-Cu
solder joints using blue laser”, J. Manuf. Process., 82 (2022), 700-707.
H. Tatsumi, C. R. Kao & H. Nishikawa, “Solid-state bonding behavior between surface-nanostructured Cu andAu: a molecular dynamics simulation”, Sci. Rep., 12 (2022), 12755.
J. Wang, X. Liu, F. Huo, K. Kariya, N. Masago, H. Nishikawa, “Novel transient liquid phase bonding method
using In-coated Cu sheet for high-temperature die attach”, Mater. Res. Bull., 149 (2022), 111713.
B. Park, M. Saito, J. Mizuno, H. Nishikawa, “Robust shear strength of Cu–Au joint on Au surface-finished Cu
disks by solid-state nanoporous Cu bonding”, Microelectron. Eng., 260 (2022), 111807.

3

Research Division of Materials Joining Process, Dep. of Laser Materials Processing
Research summary
Fundamental studies are performed concerning welding, joining, cutting, surface modification
and removal processing with laser beams, aimed at advanced fusion between laser science andproduction engineering. We focus on clarification of welding or joining mechanisms on the basis of
the visualization of material processing phenomena with high-speed optical observation or X-ray
transmission imaging techniques. Moreover, laser should be utilized with not only high thermal
efficiency but also physicochemical effects induced by interaction between light and material. Thus
we create innovative processes including laser direct joining of metal and plastic, put theseprocesses to practical use and disseminate achievements of our research to the world.

Research subjects(1) Development and evaluation of joining and welding processes for the advanced functional
materials(2) Development of additive manufacturing technologies with blue diode laser(3) Creation of new function by surface modification with laser(4) Fundamental studies on laser interaction with materials and fundamental studies of materials
processing utilizing laser

PMMA film surface after femtosecond laser irradiation.
(a) SEM image with periodic nanostructures oriented to thedirection perpendicular to the laser polarization vector (The periodof the periodic nanostructure is about 230nm) on PMMA film
surface.
(b) Fluorescence microscope image of cell cultivation test. Cells
adhered to the periodic nanostructures surface rather than baresurface.

Clarification of laser welding phenomena with 16 kW
disk laser

Major Papers
K. Takenaka, Y. Sato, S. Fujio, K. Nishida, R. Ito, E. Hori, S. Kato, M. Suwa, S. Uno, K. Tojo and M. Tsukamoto,“Bead-on-plate welding of pure copper with a 1.5-kW high-power blue diode laser”, Weld. World, 67 (2022),
99-107.
K. Maeda, Y. Sato, K. Takenaka, S. Fujio, R. Suzuki, T. Suga and M. Tsukamoto, “Behavior of melt flow andporosity formation in laser welding of steel to aluminum with cold-sprayed steel interlayer”, J. Laser Appl., 34(2022), 042033.
T. Arita, Y. Sato, Y. Kurita, M. Mizutani, H. Nakano and M. Tsukamoto, “In situ observation of dynamics of
keyhole and molten pool in laser welding for development of spatter suppression”, J. Laser Appl., 34 (2022),
032017.
K. Takenaka, Y. Sato, M. Tsukamoto, “Effect of polymer permittivity on periods of LIPSS formed on titanium
with femtosecond laser pulses”, Appl. Phys. A-Mater. Sci. Process., 128 (2022), 881.
S. Fujio, K. Takenaka, Y. Sato, R. Ito, E. Hori and M. Tsukamoto, “Effect of blue diode laser intensity on weldingof pure copper wire using blue-IR hybrid laser”, J. Laser Appl., 34(4)(2022), 042021.

4

Research Division of Materials Joining Mechanism, Dep. of Welding Mechanism
Research summary
Mechanisms controlling the joint performance of structural and functional materials, which obtainedby fusion welding, liquid-state/solid-state bonding, and solid-state bonding, are metallographicallycharacterized to establish a scientific basis to produce joint materials featuring superior performance.
The microstructures of the weld-deposited metal, the heat-affected zone of fusion-welded joints, andthe interfacial region of solid-state bounded joint are thoroughly investigated utilizing various methods
such as X-ray diffraction, electron-microscopy observation, elementary analysis, EBSP analysis, andnumerical modeling and simulation. Formation processes of the microstructures and their relation to
joint performance are discussed from the material scientific viewpoint.

Research subjects(1) Weld microstructure analyses of structural material such as steel(2) Bonding mechanism of solid-state joining of metals and ceramics, and its application to microstructural control(3) Application of welding and joining phenomena to development of advanced materials(4) Synthesis of new functional materials at welding and joining interface(5) Evaluation of the effect of microstructure on mechanical behavior of structural materials joints
400

(c)

300

(d)

W-rich layer

0.1

/ MPa

RS
AS

(b)

Stress ratio:(e)Stress amplitude,

(a)

200

50%UP
FSPed
As-welded

100
10000
104

100000105

1000000
106

Number of cycles to failure,

10000000
107(Cycles)

Geometry modification and W-rich layer formation for weld
toe of high-strength low-alloy steel joints using friction stirprocessing (FSP) with spherical-tip WC tool, resulting in
fatigue strength improvement.

Welding-time variation of penetration shape change in thesimulated vibration assisted tandem-pulsed GMAW using
the Flow-3D commercial software in the presence of sinevibration parallel to the welding direction (250 Hz) and thesurface tension active elements.

(d) 3D image of the 100 mm/s-105 A, Al/Cu joints,
reconstructed by the serial sectioning technique. The
volumes of Al, Cu, and Al/Cu-mixed zone are colored gray,orange, and yellow, respectively. Their (e) top-view and (f)cross-sectional 2D images with the mixed zone highlighted.

Deformation induced phase transformation from FCC to
BCC occurred in an impact test of δ-ferrite-containing γ
stainless steel deposited metal at liquid N2 temp., resulting
in increasing ultralow-temp. toughening.

Major Papers
H. Yamamoto, S. Koga, K. Ito, Y. Mikami, “Fatigue strength improvement due to alloying steel weld toes withWC tool constituent elements through friction stir processing”, Int. J. Adv. Manuf. Technol., 119 (2022), 62036213.
H. Yamamoto, R. Oda, K. Ito, H. Maniwa, Y. Kitagawa, H. Watanabe, “Toughening due to deformation induced
martensitic transformation in delta ferrite-containing austenitic stainless steel weld metals”, IIW Annual
Assembly 2022, held on July in Tokyo.

5Research Division of Materials Joining Mechanism, Dep. of Joint Interface
Structure and Formation Mechanism
Research summary
In this department, based on the elucidation of the various phenomena at the joint interfaces offerrous, nonferrous, non-metal materials at both macroscopic and microscopic levels, the interface
formation mechanisms during various joining processes are clarified to create new interface control
methods.
In addition, novel welding and modification processes are developed, mainly based on fusion
welding methods and friction welding methods such as the friction stir welding, rotary friction
welding and linear friction welding methods, which is the core of the fundamental technologies
having a great potential to produce new values. These developments are going to be used andfocused simultaneously in our society in order to create a new research field and elevate thecontinuous growth of industrial competitiveness of our country.

Research subjects(1) Control of interface and elucidation of formation mechanism during friction welding (FSW,Friction welding, Linear friction welding)(2) Development of novel joining and modification processes(3) Elucidation of formation mechanism of weld interface and molten pool
(4) Analysis of joint interface structure(5) Control of solid-liquid interface formation

Three-dimensional visualization of the material flow using a W
tracer during the FSW.

SEM microstructures and Vickers hardness along the central
axis of LFWed joints.

Major Papers
A. Sharma, Y. Morisada, and H. Fujii, “Bending induced mechanical exfoliation of graphene interlayers in athrough thickness Al-GNP functionally graded composite fabricated via novel single-step FSP approach”,
Carbon, 186 (2022), 475-491.
J.-W. Choi, W. Li, K. Ushioda, M. Yamamoto, and H. Fujii, “Strengthening mechanism of high-pressure linear
friction welded AA7075-T6 joint”, Mater. Charact., 191 (2022), 112112.
X. Wang, Y. Morisada, K. Ushioda, and H. Fujii, “Double-sided friction stir spot welding of ultra-high strength
C-Mn-Si martensitic steel by adjustable probes”, J. Mater. Process. Technol., 300 (2022), 117422.
T. Kawakubo, K. Ushioda, and H. Fujii, “Grain boundary segregation and toughness of friction-stir-welded highphosphorus weathering steel”, Mater. Sci. Eng. A, 832 (2022), 142350.
M. Zhou, Z. Zeng, C. Cheng, Y. Morisada, Q. Shi, J.-Y. Wang, and H. Fujii, “Effect of the processing route on the
microstructure and mechanical behavior of superlight Mg-9Li-1Zn alloy via friction stir processing”, J. Magnes.
Alloy., 10 (2022), 3064-3081

6

Research Division of Materials Joining Mechanism, Dep. of Composite Materials
Processing
Research summary
From a viewpoint of the energy saving and environmental problem solutions, the research fieldsof this department focus on both of the effective reuse of resources and energy including renewable
ones and reduction of life hazardous materials and air pollutions. In particular, by controlling theinterfacial mechanics and high-performance of materials, atomic/nano-scale composite materials
and processing designs for the environmentally benign are established, and applied to innovative
industrial development.

Research subjects(1) Powder based titanium materials with static and dynamic high-strength & ductility(2) Core-shell structured Ti-N composite powders via solid-gas reaction(3) Laser powder bed fusion titanium alloys strengthened by solid-solution and nano-dispersoids(4) Nano-carbon materials reinforced metal matrix composites via local interface mechanics(5) Direct bonding of plastic materials to metals by molecular structure and fine bubbles control(6) Local surface potential difference in CNTs reinforced metal materials and its applications

SEM-EDS (a) and AFM-SKPFM (b) analysis
results of Mg-Ni cast alloy and surface
potential difference between the Mg2Ni IMCs
and Mg matrix.

Major Papers

Comparison between experimental & calculated results.
Changes in experimental Young’s modulus versus
calculated one of (a) β-Ti and (b) Ta systems. Solidsolution strengthening by experimental & calculation of(c) β-Ti and (d) Ta systems.

S. Kariya, A. Issariyapat, A. Bahador, J. Umeda, J. Shen and K. Kondoh, “Ductility improvement of high-strength
Ti– O material upon heteromicrostructure formation”, Mater. Sci. Eng. A, 842 (2022) 143041.
K. Kondoh, R. Takei, S. Kariya, S. Li and J. Umeda, “Quantitative analysis on surface potentials of impurities andintermetallic compounds dispersed in Mg alloys using scanning Kelvin probe force microscopy and ultraviolet
photoelectron spectroscopy”, Mater. Chem. Phys., 279 (2022) 125760.
K. Shitara, K. Yokota, M. Yoshiya, J. Umeda and K. Kondoh, “First-principles design and experimental validationof β-Ti alloys with high solid-solution strengthening and low elasticities”, Mater. Sci. Eng. A, 843 (2022) 143053.
A. Bahador, A. Yurtsever, A. Amrin, S. Kariya, J. Umeda, J. Shen, B. Chen, T. Fukuma and K. Kondoh, “Roomtemperature and high-temperature properties of extruded Ti–4Fe–3W/2TiC composites in α+ß and ß phases”,
Mater. Design, 220 (2022) 110901.
J. Wan, J. Yang, X. Zhou, B. Chen, J. Shen, K. Kondoh and J. Li, “Superior tensile properties of graphene/Alcomposites assisted by in-situ alumina nanoparticles”, Carbon, 204 (2023) 447-455

7Research Division of Materials Joining Assessment, Dep. of Joining Mechanics andAnalyses
Research summary
The mathematical and numerical modelling is a basis of the Artificial Intelligent (AI) and one of themost efficient approaches to look into various detail phenomena involved in joining & welding &additive manufacturing processes. In addition, assessment to residual stress/strain and strength ofvarious types of joints between dissimilar materials is being studied through both the advanced
measuring technology and numerical computational approaches.

Research subjects(1) Computational modelling of nonlinear thermo-mechanical-metallurgical phenomena in multimaterials additive manufacturing, fusion welding and solid-state joining.
(2) Artificial Intelligent (AI) and digital twin for full manufacturing processes including metal forming,
joining, welding and assembling of structures.
(3) Integration of FEM and Field Measurement (M-FEM) using DIC in various tests for identificationof internal residual stress and fracture criteria of materials and various types of joints.

Major Papers
W. Huang, Q. Wang, N. Ma, H. Kitano, “Investigation of residual stress distribution pattern in typical wall andpipe components built by wire arc additive manufacturing”, J. Manuf. Proc., 82 (2022), 434-447.
Z. Feng, N. Ma, K. Hiraoka, Y. Komizo, S. Kano & M. Nagami, “Development of 16Cr8Ni low transformation
temperature welding material for optimal characteristics under various dilutions due to all repair welding
positions”, Sci. Technol. Weld. Join., Dec. 2022.
P. Geng, Y. Ma, N. Ma, H.Ma, Y. Aoki, H. Liu, H. Fujii, C. Chen, “Effects of rotation tool-induced heat and material
flow behaviour on friction stir lapped Al/steel joint formation and resultant microstructure”, I. J. Mach. Tools.,
174 (2022) 103858.
T. Wu, Y. Ma, H. Xia, T. Niendorf, N. Ma, “Measurement and simulation of residual stresses in laser welded
CFRP/steel lap joints”, Compos. Struct., 292 (2022) 115687, 1-14.
Y. Ma, Y. Abe, P. Geng, R. Akita, N.Ma, K. Mori, “Adhesive dynamic behavior in the clinch-bonding process ofaluminum alloy A5052-H34 and advanced high-strength steel JSC780”, J. Mat. Proc. Tech., 305 (2022) 117602.

8

Research Division of Materials Joining Assessment, Dep. of Joining Design and
Structuring
Research summary
In this research division, the structural design and fabrication processes are considered in thefollowing two aspects: the "through-process" and "trans-scale." The concept of "through-process"considers the time axis throughout the life cycle, from the design and construction process, such as
welding and joining, to testing, service, repair, reinforcement, and maintenance. The concept of"trans-scale" considers spatial axes ranging from micro to macro, such as the microstructure ofmaterials of welds, welding and joining components, and structures.
We research the evaluation of the performance and reliability of various structures at each ofthese stages and scales. In particular, the effects of thermal processing, represented by residual
stresses and deformations, on the performance of welded and joined components and structures
will be clarified from microscopic and macroscopic perspectives. We will also develop a detailed
and intelligent evaluation method based on these findings. Our goal is to establish design
engineering that contributes to advancing structuring processes such as welding and joining.

Research subjects(1) Development of evaluation methods for strength properties and reliability of structuralmembers, welds and joints(2) Development of performance evaluation technique for welded structures in consideration ofresidual stress
スタッ フ 堤 成一郎（ 准教授） Ricca rd o Fin ca to（ 特任講師）(3) Development of manufacturing process simulation technology for design applications(4) Development of damage evaluation
methodconsidering
microscopic
deformation
各 種構
造物の全性 、耐久plastic性 ）評価
手 法 の 高 精度 化 、補修 補
信頼性（ 安behavior of materials and welds
さ ら に 高性 能を 有す る 材 料お よ び 構造体 の 創出 を 目指
(5) Evaluation of cracking characteristics considering the heterogeneity of structural materials and
先進 の 計 測技術 を 用 い た 実験と 精緻な 数値シ ミ ュ レ ー ショ ン
weld

信頼性設計学領域（ 接合科学研究

マ ルチ ス ケ ー ル に 展開する こ と によ り 、社 会ニ ー ズ に 応え る 高 度な 研究
数値シミ ュレ ーショ ンによる 疲労現象の解明

構造部材および接合部の健全度診断
超高速衝撃構造性能評価システムによる各種大型構造部材の力学的特性評価

(b)

(a)

(最大荷重： 1 2 0 0 k N , 載荷速度： 1 .2 m /s)
Through-processsimulation of specimen machining, residual stress modification, and fracture toughness testing.
(c)
(d)
(c)

(b)

(d)

γ

γ

γ
α

(c)

α

γ

γ
(b)

α

α

上端・ 引張にγ
伴う 塑性変形αγ
領域の拡大の様子γ（ シミ ュレ ーショ
ン 結果）
α

50 μm
Loading direction

50 μm

50 μm

50 μm

繰返し 荷重結晶塑性FE解析によるミ ク ロ・ メ ゾスケールの変形・
超高速衝撃構造性能評価システム
柱梁溶接接合部のEvaluation of crack
characteristics
of structuralproperties
ofvarious
members
疲労（initiation
き 裂発生・ 伝播）挙動の解明と疲労メmaterials
カ ニズムを Evaluation of mechanical(最大荷重： 1 2 0 0 k N , 載荷速度： 1 .2 m /s)
高速繰返し 曲げ試験
considering microstructure.
by large-scale structural performance evaluation system
考慮し た高精度・ 寿命評価

Major Papers

供試体繰返し 荷重繰返し 荷重

T. Ozawa, T. Kawabata, Y. Mikami, “Proposal of New MOTE Methods for Brittle Fracture
Toughness溶接部
一定荷重
Determination”,特定の結晶から
ISIJ Int.,ク62
1301-1311.
ラッ ク(2022),
発生
鋼製橋脚に対する正負交番載荷試験

供試体

Ⅰ型断面部材溶接部に対する正負交番曲げ疲労試験

H. Kitano, Y. Mikami,実験結果“Constructing a heatsource parameter estimation model for heat conduction finite
結晶塑性FE解析による予測結果
element analysis using deep convolutional neural network”, Mater. Today Commun., 31 (2022), 103387.
Co n ta ct

TEL : 0 6 -6 8 7 9 -4 8 8 7

E-m a il : tsu tsu m i@ j w ri.o sa k a -u .a c.

T. Ozawa, T. Kawabata, Y. Mikami, “Quantitative evaluation of fracture toughness deterioration due to Prestrain”, Eng. Fract. Mech., 272 (2022), 108683.

9

Research Division of Materials Joining Assessment, Dep. of Joining Metallurgical
Evaluation
Research summary
Development of innovative manufacturing technology is required to manufacture highperformance machine products and structures of the next-generation. Department of Joining
Metallurgical Evaluation conducts research and education for elucidation and control of the factors
on weldment properties by high accurate evaluation based on material science and engineering. In
order to create innovative and attractive technique of welding & Joining as a final aim, ourdepartment are working on elucidation of metallurgical phenomenon such as solidification andtransformation, and on developing the predication method for the microstructures and theproperties of weldments.

Research subjects(1) Elucidation for mechanism of microstructural evolution during solidification and solid state inweld metal of stainless steels and carbon steels(2) Investigation of controlling factor of hot cracking susceptibility and establishment of theprediction technology of the cracking during welding and additive manufacturing(3) Clarification of influential factors of corrosion resistance of stainless steel welds(4) Analysis of solidification/transformation behavior and accurate evaluation of hot cracking
susceptibility by using In-situ observation technique(5) Development of improvement technology of properties of weld metal by microstructural control

Evaluation and analysis of hot cracking susceptibility test

Observation of pitting initiation in heat-affected zone by FESEM(a)α/γInterface and (b)α-ferrite, (c)Location of pitting initiation
High temperature in-situ observation bylaser microscope

Major Papers

Y. Hou, Y. Nakamori, K. Kadoi, H. Inoue and H Baba, “Initiation mechanism of pitting corrosion in weld heataffected zone of duplex stainless steel”, Corrosion Sci., (2022), 110278.
M. Sakata, K. Kadoi and H. Inoue, “Mechanism for enhanced age hardening of 22 % Cr duplex stainless steel
weld metal fabricated with grade 2209 filler material”, Mater. Today Commun., 33 (2022), 104201.
R. Homma, G. Shigesato, M. Fujioka, K. Kadoi and H. Inoue, “Mn Depletion Behavior at Oxide/matrix In Low
Oxygen weld of Low Carbon Steel", Tetsu-to-Hagane, 108 (2022), 211-223.
Y. Hou, G. Cheng, K. Kadoi, H. Inoue, Q. Ruan, J. Pan and X. Chen, “Formation Mechanism of Stripe Pattern
Defect in Cold-Rolled AISI 441 Stainless Steel Stabilized by Ti and Nb”, Metall. Mater. Trans. B, 53 (2022), 24992511.
Y. Hou, C. Cheng, K. Kadoi and H. Inoue, “Acceleration Mechanism of Ti 2O3 on TiN Formation and δ-Ferrite
Nucleation of Ferritic Stainless Steel”, Journal of Alloys and Compounds, 912 (2022), 165221.

10

Research Center for Additive Joining Application, Dep. of Green Additive
Manufacturing
Research summary
As environmental and energy problems become more serious on a global scale, we are working
on research and development of material process technologies and environment-friendly materials
that will greatly reduce the environmental load. We recently focus on inorganic nano- and microparticles as building blocks for functional materials and devices, and we develop low-environmentalload methodologies for their syntheses, film formation, bonding, integration, and 3D printing.
Furthermore, we are proceeding with research and development of environment and energy relatedmaterials and devices using our new process technology.

Research subjects(1) Eco-friendly solution-based syntheses of nano- and micro-particles(2) Eco-friendly assemblies of nano- and micro-particles(3) Development of Environment friendly materials(4) Development of environmental monitoring devices(Top) Reductant free synthesis of noble metal nanoparticles (NPs)(Middle) Shape-controlled synthesis without any additives(Bottom) Reductant-free coating of noble metal NPs(Top) Direct Ink Writing of Nanoparticle-Ink(Left-bottom) Visible-light induced patterning of metal NPs(Right-bottom) Self-assembly of magnetic NPs under magnetic field

Major Papers
F. Li, S.-K. Sun, Y. Chen, T. Naka, T. Hashishin, J. Maruyama, H. Abe, “Bottom-up synthesis of 2D layered
high-entropy transition metal hydroxides”, Nanoscale Adv., 4, (2022), 2468-2478.
F. Li, G.-J. Zhang, H. Abe, “Sintering of high-entropy nanoparticles obtained by polyol process: A casestudy of (La0.2Y0.2Nd0.2Sm0.2Gd0.2)2Ce2O7-δ”, J. Eur. Ceram. Soc., 42, (2022),7538-7545.
F. Li, G.-J. Zhang, H. Abe, ”Low-temperature synthesis of high-entropy (Mg0.2Co0.2Ni0.2Cu0.2Zn0.2)O
nanoparticles via polyol process”, Open Ceramics,9,(2022),100223
T. Hashishin, H. Taniguchi, F. Li, H. Abe, “Useful High-Entropy Source on Spinel Oxides for Gas Detection”,
Sensors,22,11(2022),4233-4245
C.-T. Thanh, P.-N.-D. Duoc, P.-V. Trinh, N.-T. Huyen, N.-V. Tu, C.-T. Anh, P.-V. Hai, K. Yoshida, H. Abe,
N.-V. Chuc, “3D porous graphene/double-walled carbon nanotubes/gold nanoparticles hybrid film for
modifying electrochemical electrode”, Mater. Lett.,330,(2022),133308

11

Research Center for Additive Joining Application, Dep. of Lithographic Additive
Manufacturing
Research summary
Additive Manufacturing (AM) was newly developed as novel process to create three dimensional(3D) structures through two dimensional (2D) layer laminations. Metal and ceramic nanoparticles
were dispersed into resin paste to use for our original process. In lithography techniques, a highpower laser beam was scanned on the spread paste for 2D layer drawing and 3D structure forming.
In deposition techniques, the paste was introduced into high temperature plasma or gas flame for
2D cladding and 3D patterning. Created electric devices, biological implants and energy modules
will contribute to sustainable development.

Research subjects(1) Stereolithographic Additive Manufacturing of Metal and Ceramic Parts Using Nanoparticles
Pastes(2) Structural Fabrication of Photonic Crystals with Diamond Structures for Terahertz Wave Control(3) Modulation of Micro Porous Structures in Biological Ceramic Implants for Artificial Metabolism(4) Manufacturing of Micro Metal Lattices for Effective Controls of Heat Flow and Stress Distributions(5) Advance Development of Thermal Nanoparticles Spraying for Additive Manufacturing Technique(6) Fine Separator Formation in Solid Oxide Fuel Cells by Using Thermal Nanoparticles Spraying(7) Fine Ceramic Coating with Thermal Conductivity and Corrosion Resistance for Heat Exchanger
Tubes(8) Layer Laminations by Fine Particles Spraying and Sintering to Create Functionally Graded
Structures

Laser Scanning Stereolithography of Additive
Manufacturing to Fabricate Bulky Metal andCeramic Components with Micro Geometric
Patterns

Thermal Spraying Using Fine Particle Pastes toLaminate Metal and Ceramic Coated Layers with
Functional Nano/Micro Structures

Major Papers
M. Takahashi, F. Spirrett, S. Kirihara, “Reduction of Dewaxing and Sintering Time by Controlling the Particle
Size of YSZ Particles for Stereolithography”, Ceramics, 5(2022), 4, 814-820.
F. Spirrett, T. Ito, S. Kirihara, “High-Speed Alumina Stereolithography”, MDPI Appl. Sci., 12(2022), 19, 9760.
S. Kirihara, “Systematic Compounding of Ceramic Pastes in Stereolithographic Additive Manufacturing”,
Materials, 14, 22 (2021), 1895611-1895945.
S. Kirihara, “Stereolithographic Additive Manufacturing of Acoustic Devices with Spatially Modulated Cavities”
Int. J. Appl. Ceram. Technol. (2021), 13925-1-13925-8.

12

Research Center for Additive Joining Application, Dep. of Additive Manufacturing
MechanismResearch summary
Laser powder bed fusion (L-PBF), one of additive manufacturing technologies, is based on a rapid
solidification process, and enables to form ultra-fine microstructures and supersaturated solutionof metal materials, which are effective to improve mechanical properties. This department focuses
on clarification of both unique microstructures formation mechanism and their effect on thestrength and ductility balance of L-PBF titanium alloys.

Research subjects(1) Formation mechanism of unique fine microstructures and orientations of L-PBF Ti alloys(2) High-strengthen metal matrix composites fabricated by L-PBF process(3) Strengthening mechanism of L-PBF Ti alloys – grain refining, solid solution and dispersions(4) Deformation behavior of Gyroid scaffolds L-PBF Ti-Zr alloy and its medical applications

Nitrogen solute-induced near-isotropic performance of laser powder bed fusion manufactured puretitanium. IPF maps of L-PBF Ti samples obtained at different printing orientation angles (θ=0°,30°, 45°, 60°,
75°, 90°) of CP-Ti (0.005% N) and Ti-0.31 wt.%N. A significant anisotropic tensile property of Ti-0.31% N aredemonstrated by change in its strength and elongation with increasing POA from 0° to 90° (vertical).

Major Papers
A. Issariyapat, S. Kariya, K. Shitara, J. Umeda and K. Kondoh, “Solute-induced near-isotropic performance oflaser powder bed fusion manufactured pure titanium”, Addit. Manuf., 56 (2022) 102907.
J. Peterson, A. lssariyapat, J. Umeda and K. Kondoh, “The Effects of Heat Treatment and Carbon Content on
the Microstructure and Mechanical Properties of Laser Powder Bed Fusion Ti-6Al-4V with Dissolved TiCParticles”, J Alloys Compds., 920 (2022) 165930.
W. Shi, Y. Yang, N. Kang, M. Wang, B. Chen, Y. Li, J. Umeda, K. Kondoh and J. Shen, “Microstructure andmechanical characterizations of additively manufactured high oxygen-doped titanium”, Mater. Charact., 189(2022) 112008.
J. Wan, H. Geng, B. Chen, J. Shen, K. Kondoh and J. Li, “Evading ductility deterioration in aluminum matrix
composites via intragranulation of nano-reinforcement by reactive selective laser melting”, Mater. Sci. Eng. A,
863 (2022) 144552.
L. Zhang, C. Hu, Y. Yang, R.D.K. Misra, K. Kondoh and Y. Lu, “Laser powder bed fusion of cemented carbides
by developing a new type of Co coated WC composite powder”, Addit. Manuf., 55 (2022) 102820

13

Research Center for Additive Joining Application, Dep. of Laser Additive
Manufacturing
Research summary
In this department, fundamental studies on laser additive manufacturing (LAM) are performed
and apparatuses for LAM are developed.
In particular, the apparatuses installed with high power blue diode lasers are also developed sincethose lasers enable stable and high efficient melting of metal materials such as copper.
Furthermore, in order to realize high-quality and high-speed LAM, we will experimentally andtheoretically proceed with the analysis of the melting and solidification process of the material bylaser irradiation.
Utilizing the obtained knowledge, we will work on the creation of innovative LAM processes andthe development of equipment and promote their social implementation.

Research subjects(1) Development of additive manufacturing technologies with blue laser(2) Elucidation of laser interaction with metal powders for LAM(3) Creation of new function by laser metal deposition(4) Elucidation of melting and solidification phenomena in LAM process

Additive manufacturing of copper using blue diode laser (a)3D rod formation (b) Micro-coatingof copper alloy (c) JWRI logo by SLM (d) Osaka University's school emblem by SLM

Major Papers
Y. Sato, Y. Morimoto, K. Ono, K. Takenaka, T. Kamata, M. Heya, and M. Tsukamoto, “Copper Alloy Layer
Formation with Multi Beam Type Laser Coating with Blue Diode Lasers”, IEEJ Trans. Elec., Infor.Sys.,
142(10)(2022), 1075-1080.
K. Takenaka, Y. Sato, N. Yoshida, M. Yoshitani, M. Heya and M. Tsukamoto, “Additive manufactured of purecopper by blue diode laser induced selective laser melting” J. Laser Appl., 34(4) (2022) , 042041.
M. Ihama, Y. Sato, Y. Mizuguchi, N. Yoshida, S. Srisawadi, D. Tanprayoon, T. Suga and M. Tsukamoto“Suppression of denudation zone using laser profile control in vacuum selective laser melting”, J. Laser
Appl., 35 (2022), 012004.
Y. Mizuguchi, M. Ihama, Y. Sato, N. Yoshida, S. Srisawadi, D. Tanprayoon, and Tsukamoto, “Effect of modulated
pulses on the fabrication of Ti-6al-4v by spatter-less selective laser melting in vacuum.” Appl. Phys. A.,128(10)(2022), 939.
14

Research Center for Additive Joining Application, Dep. of Advanced Additive
Manufacturing
Research summary
This department deals with smart coating processing based on nanoparticle processing, whichleads to advanced manufacturing technology as well as safe, security, environmental and energy
issues. By making use of new properties of nanoparticles, nanoporous or multi-component films
can be created without any heat assistance. Nano and microscale design of particles will lead tohigh reliability and functional coating films with various kinds of coating processes. Smart coatingon the surface of particles will make key materials for new areas such as DDS (Drug Delivery System)
or Fuel Cells.

Research subjects(1) Development of solid-state processing in water vapor for functional fine-particle synthesis(2) Low temperature synthesis of composite oxide nanoparticles by mechanochemical method(3) Development of Li ion battery electrodes by controlling their composite structure(4) Wet processing for composite nanoparticles and their applications for fuel cells(5) Development of fuel cell electrodes for PEFC and SOFC
(6) Development of low thermal conductivity materials using composite particles(7) Development of 3D direct-assembly process of nanoparticles(8) New recycling process of composite materials by bonding and disassembling of their interface(a) Fabrication of cathode particle with gradient composition
for Li ion battery by dry processing(b) Fabrication of both cathode and anode nanostructure
for SOFC by wet processing

Major Papers
D.-W. Tan, Z.-Y. Lao, W.-M. Guo, A. Kondo, T. Kozawa, M. Naito, K. Plucknett, H.-T. Lin, “Fabrication andmodelling of Si3N4 ceramics with radial grain alignment generated through centripetal sinter-forging”, J. Mater.
Sci. Technol., 126 (2022), 1-14.
A. Kondo, T. Kozawa, T. Ishii, J. Kano, M. Naito, “Mechanical Synthesis of Lithium Titanate Hydrate in Liquid
Phase Using a Bead Mill”, J. Soc. Powder. Technol. Japan., 59 (2022), 324-330.
A．Kondo, T. Kozawa, T. Ishii, M. Naito, “Wet milling synthesis of ammonium cobalt phosphate hydrate
platelets for LCP-olivine cathodes for LIB using a bead mill”, Int. J. Appl. Ceram. Technol. (2022) .
T. Kozawa, F. Kitabayashi, K. Fukuyama, M. Naito, “Carbon nanoparticle-entrapped macroporous Mn 3O4
microsphere anodes with improved cycling stability for Li-ion batteries”, Sci. Rep., 12 (2022), 11992.

15

Joint Interface Microstructure Characterization Room
Research summary
In order to clarify the effect of material structure on the properties of joints joined by various methods
and new materials made by applying joining technology, their microstructures are examined using atransmission electron microscope (TEM). TEM observation provides various information such as the
crystal structure, chemical composition, properties and distribution of lattice defects in minute areas.
We also support the preparation of specimens for TEM observation from difficult-to-process joint
structures, etc., using various means such as focused ion beam (FIB) processing. In addition to TEM
sample preparation, we develop methods for micromechanical testing of materials using FIB processing
and apply them to strength evaluation of joint structures.
As a unique activity of the analysis room, we perform basic study on the bonding mechanism ofanodic bonding, which is a method of bonding glass to conductors at relatively low temperatures, anddevelop new bonding methods and high-function bonding interfaces by applying that knowledges.

Research subjects(1) Microstructural analysis of various bonding interfaces and material structures(2) Fundamental research on the anodic bonding process of glass to various metals(3) High functionalize of glass-to-glassanodic bonding interfaces(4) Development of new bonding methods that applies the principle of anodic bonding

Reaction products that grew at joint interfaces between
titanium and optical glasses. The bright-ﬁ eld image of BK7crown glass/titanium joint interface by transmission electron
microscopy (a), Selected Area electron Diﬀ raction (SAD)
pattern taken from the area indicated by a circle in the imagea (b), bright-field image of FD110 dense flint glass/titanium
joint interface (c), and SAD pattern taken from the area
indicated by a circle in the image c (d). These reaction products
were found to consist of α-TiO2 . However, those forms arestrongly aﬀ ected by types of glass.

Distribution of retained austenite in 980 MPa
high-tensile steel. (a) Bright-field image, (b)dark-field image taken by 111 reflection fromaustenite indicated in the diﬀ raction pattern in(c), and (c)-(e) selected-area electron diﬀ raction
patterns taken from positions indicated in thebright -ﬁ eld image in (a). Austenite appears
bright between ferrite laths in the dark-ﬁ eld
image.

Major Papers
Makoto Takahashi, “Effect of Bonding Voltage on the Progress of Glass-to-glass Anodic Bonding Using a
Conductor Layer as an Intermediary” (In Japanese), 28th Symposium on “Microjoining and AssemblyTechnology in Electronics, held on February online.

16

Global Diversity and Inclusion Promotion Office
Summary
Global D&I (Diversity & Inclusion) Promotion Office promotes the development of an environmentthat maximizes the strengths of Joining and Welding Research Institute (JWRI) and all members bytruly embracing diversity and respecting the individuality of each person, regardless of gender,
nationality, age, cultural background, etc., in order to achieve the SDGs, which aim to realize asociety where "no one is left behind”. In response to the trend toward internationalization inacademic research, JWRI will develop international joint industry-academia research based on theinternational network we have established to date. JWRI aims to develop competent humanresources to face global challenges, to strive to stimulate innovation in joining science as the worldleading research in the field of welding and joining, and to realize the institute where diverse humanresources can play an active role.
In FY 2022, major activity that Global D&I Promotion Office has worked on was the strengthening
international collaboration through establishing the research institute under collaboration with
Hanoi University of Science and Technology (HUST) in Vietnam. Receiving various supports andfunds from Japanese and Vietnamese Government as well as from industries, “Joining and Welding
Research Institute HUST-OU” has been established in January 2023. It is expected that new institutewill broaden the diversity of the JWRI through active international joint research and throughexchange of the researchers and students in Southeast Asia.
Another activity was focused on diversifying human resources with regards to gender and global
perspective in order to enhance outcomes for further diversity and inclusion within JWRI.

Activities(1) Increase Global Diversification: Strengthen International Collaboration Research; Establishingthe “Joining and Welding Research Institute HUST-OU”; Create and activate foundation ofInternational Industry-Academia Collaboration; Increase number and quality of Welding
Engineers in Vietnam and in Southeast Asia.
(2) Increase Gender Diversification: Bring together students, faculty and staff from different roles
and positions; Organize “International Seminar on Materials Science in 2022~ SDGs Seminar
2022 Autumn ~” with Okayama University.
Table.1. List of activities and projects for Global Diversification
Name
Contents
Establishing “Joining andJanuary 10th, 2023: Establishment Ceremony was held at HUST
Welding Research
in Hanoi, Vietnam
Institute HUST-OU”
Tow Seminars were held:
Vietnam Welding
1) November 10th, 2022 in Hanoi, Vietnam (Hybrid)
Research Club
2) February 10th, 2023 in Hai Phong, Vietnam
New Industry-Academia
Concluded on January 10th, 2023: Kobe Steel; Thai KOBELCO
Collaboration
Welding; HUST; JWRI.
Japan International
Strengthening training and education capacity on Welding
Cooperation Agency (JICA)
Engineers at HUST (preparing for kick-off)Partnership Program

Seminar with members of Vietnam Welding Research Club17

Establishment Ceremony of “JWRI HUST-OU”

Osaka Fuji "Advanced Functional Processing" Joint Research Chairs
Research summary
This research chair aims to develop advanced functional processing technics by combining laser
processing technology and materials knowledge in JWRI and advanced functional manufacturing
technologies of Osaka Fuji Corporation.
The main purpose is to develop the surface functioning of various materials by laser cladding
method, low weldability materials. Finally, these fruits are applied to the next generation of
manufacturing technology for various industrial fields.

Research subjects(1) Development of highly functional surface by laser cladding(2) Development of functional surfaces of small or thin parts(3) Development of hybrid technology of laser and conventional surfacing technologies(4) Fundamental research of laser additive manufacturing technology

Dynamic observation of molten pool behavior for analysis ofblow halls formation using high-speed camera

Example of laser cladding on edge of screw

Experimental apparatus for laser cladding

Wide, flat cladding layer which was provided by beam control

Major Papers
K. Morimoto, Y. Sato, K. Takenaka, Y. Funada, Y. Hayashi, N. Abe and M. Tsukamoto, "Effect of particle size
distribution on pure copper layer formation in a multi-beam laser cladding system with pure copper powder
and two blue diode lasers", Appl. Phys. A-Mater. Sci. Process., 129 (2022), 12.
T. Arita, Y. Sato, Y. Kurita, M. Mizutani, H. Nakano and M. Tsukamoto, "In situ observation of dynamics of
keyhole and molten pool in laser welding for development of spatter suppression", J. Laser Appl., 34 (2022),
32017.
T. Arita, Y. Kurita, M. Mizutani, Y. Sato, H. Nakano and M. Tsukamoto, “Experimental study on mechanism of
spatter generation in keyhole welding using 16kW disk laser”, Proc. SPIE, (2022), 119880G-1-119880G-6.

18

Design & Engineering by Joint Inverse Innovation for Materials Architecture− DEJI2MA Project −Research summary
The Project, Design & Engineering by Joint Inverse Innovation for Materials Architecture - DEJI2MA
Project -, has started from 2021 as inter-university cooperative research project (Osaka Univ., Tohoku
Univ., Tokyo Institute of Tech., Nagoya Univ., Tokyo Medical and Dental Univ., Waseda Univ.). This
project promotes the joint research for development of Inverse Innovation Materials for applications
in such as environmental, energy and biomedical fields through the inter-university cooperative
researches by the 6 research institutes at 6 universities.

Research subjects(1) Environmental and Energy Materials(2) Biomedical and Healthcare Materials(3) Information and Communication Materials

6 universities cooperative research project(1) Joining and Welding Research Institute, Osaka Univ.
(2) Institute for Materials Research, Tohoku Univ.
(3) Laboratory for Materials and Structures, Tokyo Institute of Tech.
(4) Institute of Materials and Systems for Sustainability, Nagoya Univ.
(5) Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental Univ.
(6) Research Organization for Nano & Life Innovation, Waseda Univ.

Research topics(1) Synthesis and integration of ceria
nanocubes towards environmental andenergy applications(2) Synthesis and coating of titan oxide
nanocrystals
towards
biomedical
applications

国際・産学連携インヴァースイノベーション材料創出プロジェクト
DEJI2MA: Design & Engineering by Joint Inverse Innovation for Materials Architecture

社会の出島
アドバイザリーボード（産官学からの委員）

社会的要求（ニーズ）を起点とする新規研究課題

イン
六研コンソーシアム（企業会員、６研研究者）
ヴァ
企業
バイオ・医療機器 ー
材料分野
ス
大学
イ
ノ
国・
環境・エネルギー ベ
地域
材料分野
ー
市民
シ
ョ
情報通信
材料分野
ン
海外

運営評価委員会（産官学からの委員）

共共拠点
共同研究員

東北大金研

東医歯大生材研多様機能金属材
料設計・開発医療マテリアル臨床

国際共共拠点共同研究員

出島

マルチ出島を通じた

人と知の循環出島

設備の共同利用
共共拠点
共同研究員

共共拠点
共同研究員

阪大接合研 課題解決
マテリアル・ 出島システム融合コア出島
課題設計（６研URA)

名大未来研
出島 グリーンマテリアル
人材育成

知のネットワーク・自由に出島間を渡航

クロス
・研究者道場プラットフォーム
出島 アポイントメント 出島

東工大フロ研

早大ナノライフ

多様機能無機材料設計・開発

構造材料設計エレクトロニクス融合

阪大接合研
東京分室設置共共拠点
共同研究員「イノベーション」のスピード創出

Major Papers

Cooperation system of the six research institutes at six universities

S. Ohara, T. Naka, T. Hashishin, “Ferromagnetism and exchange bias in compressed ilmenite–hematite solid
solution as a source of planetary magnetic anomalies”, Sci. Adv., 8, (2022), 1-5.

19

CONTRIBUTIONS TO OTHER ORGANIZATIONS(January 2022 ~ December 2022)[Physics, Processes, Instruments & Measurements]

M. TANAKA
New Initiative in the IIW Annual Assembly andInternational Conference
Welding Technol., 70, 10 (2022), 85-89 (inJapanese).

M. TANAKA
We Must Learn the Present by Studying the Past
J. Smart Process., 11, 1 (2022), 1-2 (in Japanese).
M. TANAKA
Towards Cultivating Intersection between Diverse
Human Resources and Knowledges
J. Japan Inst. Elncs. Pcag., 25, 1 (2022), 1 (inJapanese).

S. ASAI, M. TANAKA, S. KODAMA, K. KADOI, Y. FUJITA,
N. MUKAI, F. MIYASAKA, K. NOMURA, Y. OGINO, S. YAMANE
and H. SHIMIZU
Round-table-talk on Seminar for Book
"Shin-Phenomena of Welding Arcs"
Welding Technol., 70, 10 (2022), 101-107 (inJapanese).

M. TANAKA
Transformative Change in the IIW Annual Assemblyand International Conference
Welding Technol., 70, 6 (2022), 106-109 (inJapanese).

M. TANAKA
On the Issue of the 60th Anniversary of theFoundation
J. Light Metal Welding, 60, 10 (2022), 419 (inJapanese).

M. TANAKA
Introduction to Welding Technology
Textbook for HPI Technology Seminar, (2022),
127-166 (in Japanese).

S. MAMAT, N. -A. SIDEK, N. -A. -A. -M. AFANDI,
R. -A. -E. ROSLAN, T. -P. TER, T. YUJI, S. TASHIRO and
M. TANAKA
Observation of Microstructure and Mechanical
Properties in Heat Affected Zone of As-Welded
Carbon Steel by Using Plasma MIG Welding Process
Metals, 12 (2022), 315.

M. TANAKA
2021 JWS Activities
J. Japan Welding Soc., 91, 5 (2022), 321-322 (inJapanese).
S. KOZUKI, T. OKABE, S. IGI and M. TANAKA
Narrow Gap Welding Process for Heavy Thick Steel
Plates with CO2 Gas Shielded Arc Welding using
REM Addition Wire
75th Annual Assembly of Int. Inst. Welding (IIW),(2022), IIW Doc. XII-2490-2022.

S. TASHIRO, S. -B. MAMAT, A. -B. MURPHY, T. YUJI and
M. TANAKA
Numerical Analysis of Metal Transfer Process in
Plasma MIG Welding
Metals, 12 (2022), 326.
L. XIAO, D. FAN, J. HUANG, S. TASHIRO and
M. TANAKA
Mild Steel Metal Rotating Spray Transfer Behavior in
Magnetically Controlled Gas Metal Arc Welding
Mater. Today Commun., 31 (2022), 103352.

Y. ABE, T. FUJIMOTO, M. NAKATANI, M. SHIGETA and
M. TANAKA
Effect of Welding Condition on Fracture Toughness
for Ultra-Narrow Gap Submerged Arc Welding
75th Annual Assembly of Int. Inst. Welding (IIW),(2022), IIW Doc. XII-2524-2022.
M. TANAKA
Introduction to Welding Process
Textbook for Summer School ofEngineering, (2022), 1-28 (in Japanese).

K. ISHIDA, S. TASHIRO, K. NOMURA, D. WU and M. TANAKA
Elucidation of Arc Coupling Mechanism in
Plasma-MIG Hybrid Welding Process throughSpectroscopic Measurement of 3D Distributions of
Plasma Temperature and Iron Vapor Concentration
J. Manufacturing Processes, 77 (2022), 743-753.

Welding20

F. JIANG, Q. MIAO, B. XU, S. TASHIRO, M. TANAKA, S. LIN,
C. FAN and S. CHEN
Numerical Analysis of Physical Characteristics andHeat Transfer Decoupling Behavior in Bypass
Coupling Variable Polarity Plasma Arc
Materials, 15 (2022), 3174(19pp).

N. -Q. TRINH, S. TASHIRO, T. SUGA, T. KAKIZAKI, K. YAMAZAKI,
A. LERSVANICHKOOL, H. -V. BUI and M. TANAKA
Metal Transfer Behavior of Metal-Cored Arc
Welding in Pure Argon Shielding Gas
metals, 12 (2022), 1577 (13pp).
S. -M. HONG, T. SHINICHI, B. -H. SEON and T. MANABU
Effect of Gap Bridging Distance on the Weldabilityof Aluminum Alloy to Galvanized Steel Joints in AC
Pulse GMAW
Met. Mater. -Int., (2022).

F. JIANG, Q. MIAO, Y. ZHANG, B. XU, S. TASHIRO, M. TANAKA
and S. CHEN
Effect of Pumping Gas on Temperature Field andPressure in Hollow Tungsten Arc
Int. J. Therm. Sci., 179 (2022), 107662 (13pp).

D. WU, K. ISHIDA, S. TASHIRO, K. NOMURA, X. HUA, N. MA
and M. TANAKA
Dynamic Keyhole Behaviors and Element Mixing in
Paraxial Hybrid Plasma-MIG Welding with a Gap
Int. J. Heat Mass Transf., 200 (2022), 123551(12pp).

Z. LI, D. WU, S. TASHIRO, M. TANAKA, J. XIN, H. WANG and
X. HUA
Influence Mechanism of Metal Vapor in Plasma Arc
Lap Welding-Metal Vapor Decreases Arc Energy
Efficiency in Conduction Plasma Arc Lap WeldingWeld. J., 101 (2022), 161-s-171-s.

G. UCHIDA, K. NAGAI, Y. HABU, J. HAYASHI, Y. IKEBE,
M. HIRAMATSU, R. NARISHIGE, N. ITAGAKI, M. SHIRATANI and
Y. SETSUHARA
Nanostructured
Ge
and
GeSn
Films
by
High‑pressure
He
PlasmaSputteringforHigh‑capacity Li Ion Battery Anodes
Sci. Rep., 1742 (2022).

S. -M. HONG, S. TASHIRO, H. BANG and M. TANAKA
Weldability of Dissimilar Materials (AA5052
Aluminium Alloy - Galvannealed High Strength
Steel) Joints by Direct Current Pulsed Gas Metal Arc
Welding
AIP Conf. Proc., 2454 (2022), 060036-1-060036-5.
R. -A. -E. ROSLAN, S. MAMAT, P. -T. TEO, F. MOHAMAD,
Y. TOSHIFUMI, S. TASHIRO and M. TANAKA
Numerical Simulation of Arc Behaviour in TIG/MIG
Hybrid Welding Process of Aluminium AlloyAIP Conf. Proc., 2454 (2022), 060009-1-060009-9.

K. TAKENAKA, R. MACHIDA, T. BONO, A. JINDA, S. TOKO,
G. UCHIDA and Y. SETSUHARA
Development of a Non-Thermal AtmosphericPressure Plasma-Assisted Technology for the Direct
Joining of Metals with Dissimilar Materials
J. Manufacturing Processes, 75 (2022), 664-669.

N. -Q. TRINH, S. TASHIRO, T. SUGA, T. KAKIZAKI, K. YAMAZAKI,T. MORIMOTO, H. SHIMIZU,
A. LERSVANICHKOOL, H. -V. BUI and M. TANAKA
Effect of Flux Ratio on Droplet Transfer Behavior in
Metal-Cored Arc Welding
metals, 12 (2022), 1069 (13pp).

S. NUNOMURA, K. KAMATAKI, T. NAGAI, T. MISAWA, S. KAWAI,
K. TAKENAKA, G. UCHIDA and K. KOGA
Plasma Synthesis of Silicon Nanoparticles: From
Molecules to Clusters and Nanoparticle GrowthIEEE Open J. Nanotechnol., 3 (2022), 94-100.

N. -Q. TRINH, S. TASHIRO, T. SUGA, T. KAKIZAKI, K. YAMAZAKI,T. MORIMOTO, H. SHIMIZU,
A. LERSVANICHKOOL, H. -V. BUI and M. TANAKA
Effect of Flux Ratio on Droplet Transfer Behavior in
Metal-Cored Arc Welding
IIW Annual Assembly, 2022 (USB), (2022), IIW 2022
- Doc. XII-2527.

S. TOKO, M. IDEGUCHI, T. HASEAGAWA, T. OKUMURA,
K. KAMATAKI, K. TAKENAKA, K. KOGA, M. SHIRATANI and
Y. SETSUHARA
Effect of Gas Flow Rate and Discharge Volume on
CO2 Methanation with Plasma Catalysis
Jpn. J. Appl. Phys., 61 (2022), SI1002/1-SI1002/6.

21

S. HSU, C. CHEN, J. SONG and H. NISHIKAWA
Surface Modification of Cu Electroplated Layers for
Cu-Sn Transient Liquid Phase Bonding
Mater. Chem. Phys., 277 (2022), 125621.

C. YANG, Y. LIU, Y. HIRATA, H. NISHIKAWA and S. LIN
Mechanical Properties of Sn-Bi-Ag
Low-Temperature Pb-free Solders
Proc. 2022 Int. Conf. on Electronics Packaging(ICEP2022), (2022), 37-38.

H. NISHIKAWA, Y. HIRATA, C. YANG and S. LIN
Effect of Low Bi Content of Reliability of Sn-Bi Alloy
Joints before and after Thermal Aging
JOM, Online (2022).

Y. LIU, C. CHEN, M. UESHIMA, T. SAKAMOTO, T. NAOE, H.
NISHIKAWA and K. SUGANUMA
Reliability Evaluation on Ag Sintering Die Attach for
SiC Power Modules During Long-term Thermal
Aging/cycling
Proc. 2022 Int. Conf. on Electronics Packaging(ICEP2022), (2022), 49-50.

J. JHANA, K. WATAYA, H. NISHIKAWA and C. CHEN
Electrodeposition of Nanocrystalline Cu for Cu-Cu
Direct Bonding
J. Taiwan Inst. Chem. Eng., 132 (2022), 10417.

Z. JIN, F. HUO, X. LIU and H. NISHIKAWA
Electromigration Comparison Study of Sn, Ag, andCu Stripes Fabricated by Electron-Beam PhysicalVapor Deposition
Proc. 2022 Int. Conf. on Electronics Packaging(ICEP2022), (2022), 203-204.

J. WANG, S. XUE, L. LIU, P. ZHANG and H. NISHIKAWA
Three-dimensional Interface and Property of SnPb
Solder Joint under Extreme Thermal Shocking
Sci. Technol. Weld. Joining, 27, 3 (2022), 186-196.
S. HOMMA, Y. TAKANO, T. WATANABE, K. MURAKAMI,
M. FUKUDA, T. IMOTO and H. NISHIKAWA
Adhesion Mechanism between Mold Resin andSputtered Stainless Steel Ground Films forElectromagnetic Wave Shield Packages
Mater. Trans., 63, 6 (2022), 766-775.

C. YANG, Y. LIU, Y. HIRATA, H. NISHIKAWA and S. LIN
High-strength
Sn-Bi-based
Low-Temperature
Solders with High Toughness Designed via
High-Throughput Thermodynamic Modelling
Sci. Technol. Weld. Joining, 27, 7 (2022), 572-578..

B. PARK, D. -L. HAN, M. SAITO, J. MIZUNO and
H. NISHIKAWA
Effect of Various Parameters on the Shear Strengthof Solid-State Nanoporous Cu Bonding in Cu-Cu
Disks for Power Device Packaging
J. Electronic Mater., 51, 7 (2022), 3851-3862.

T. KUZUYA, T. TAKEDACHI, T. ANDO, Y. MATSUNAGA,
R. KOBAYASHI, Y. SHIMOTORI, N. NAKAZATO, H. NISHIKAWA
and T. NAOE
Synthesis of Hierarchical Structured Cu-Sn Alloy
Mesoparticles and Its Application of Cu-Cu Joint
Materials
Mater. Trans., 63, 6 (2022), 794-799.

J. WANG, X. LIU, F. HUO, K. KARIYA, N. MASAGO and
H. NISHIKAWA
Novel Transient Liquid Phase Bonding Method
Using In-coated Cu Sheet for High-Temperature Die
AttachMater. Res. Bull., 149 (2022), 111713.

S. HOMMA, M. SHIMA, Y. TAKANO, T. WATANABE,
K. MURAKAMI, M. FUKUDA, T. IMOTO and H. NISHIKAWA
Adhesion Mechanism between Mold Resin andSputtered Copper for Electromagnetic Wave Shield
PackagesThin Solid Films, 750 (2022), 139188.

B. PARK, M. SAITO, J. MIZUNO and H. NISHIKAWA
Robust Shear Strength of Cu-Au Joint on Au
Surface-Finished
Cu
Disks
by
Solid-State
Nanoporous Cu Bonding
Microelectron. Eng., 260 (2022), 111807.

T. WANG, K. YASUDA and H. NISHIKAWA
Fabrication of Micron-Sized Protrusions on Metal
Surface for Metal/polymer Easy-Disassembly Joining
by Selective Laser Melting Technology
Mater. Des., 220 (2022), 110873.

22

H. NISHIKAWA
Sintered
Bonding
Process
Using
SurfaceNanostructured Materials for Die Bonding
Kagaku to Kogyu, 96, 8 (2022), 232-239 (inJapanese).

K. MORIMOTO, Y. SATO, K. TAKENAKA, M. MIZUTANI, K. TOJO,
Y. HAYASHI, K. AZUMI, N. ABE and M. TSUKAMOTO
Development of High Speed Pure Copper Layer
Formation Technology Using Multi Beam Laser
Cladding System with High Intensity Blue Diode
LasersJ. Japan Laser Proc. Scy., 29, 1 (2022), 23-30 (inJapanese).

H. NISHIKAWA, Y. HIRATA, C. YANG and S. LIN
Effect of Low Bi Content on Mechanical Properties
of Sn-Bi-Zn-In Alloy and Its Joint with Cu
Proc. 2022 9th Electonics System-Integration
Technology Conf., (2022), 146-1-146-4.

Y. SATO
Report on ICALEO2021
J. Japan Laser Proc. Scy., 29, 1 (2022), 37-39 (inJapanese).

H. TATSUMI, C. -R. KAO and H. NISHIKAWA
Solid-State Bonding Behavior between
Surface-Nanostructured Cu and Au: A Molecular
Dynamics Simulation
Sci. Rep., 12 (2022), 12755.

H. KOSHIJI, T. OHKUBO, T. SHIMOYAMA, T. NAGAI,
E. MATSUNAGA, Y. SATO and T. DINH
Analysis of Vase Shaped Pumping Cavity for
Solar-Pumped Laser
J. Adv. Comput. Intell. and Intell. Inform., 25, 2(2022), 242-247.

H. TATSUMI, S. KANESHITA, Y. KIDA, Y. SATO, M. TSUKAMOTO
and H. NISHIKAWA
Highly Efficient Soldering of Sn-Ag-Cu Solder Joints
Using Blue Laser
J. Manufacturing Processes, 82 (2022), 700-707.

W. SHI, T. KANAMOTO, M. AIHAR, S. OKA, S. KURODA,
T. NAKAI, T. MAZUKA, K. TAKENAKA, Y. SATO, M. TSUKAMOTO,
K. EBINA and K. NAKATA
Articular Surface Integrity Assessed by Ultrasound Is
Associated with Biological Characteristics ofArticular Cartilage in Early-Stage Degeneration
Scientific Rep. vol., 12 (2022), 11970.

M. TSUKAMOTOBLUE LASER ADDITIVE MANUFACTURING OFMETALDIE AND MOULD TECHNOLOGY, 37, 6 (2022),
18-21 (in Japanese).

S. OTANI, T. KANAMOTO, S. OYAMA, S. YAMAKAWA, W. SHI,
R. MIYAZAKI, M. AIHARA, S. OKA, S. KURODA, T. NAKAI,
K. TAKENAKA, Y. SATO, M. TSUKAMOTO, A. TSUJII, K. EBINA,
S. OKADA and K. NAKATA
Meniscus Surface Texture Is Associated with
DegeneMeniscus Surface Texture Is Associated with
Degenerative
Changesin
BiologicalandBiomechanical
Propertiesrative
Changesin
Biological and Biomechanical Properties
Scientific Rep. vol., 12 (2022), 11977.

M. TSUKAMOTO, Y. SATO, R. HIGASHINO,
K. TAKENAKA, E. HORI, S. OUCHI, K. ASANO andK. TOJOADDITIVE
MANUFACTURING
WITH
HIGH
INTENSITY BLUE DIODE LASER
J. Smart Proc. Mater., 11, 4 (2022), 158-162 (inJapanese).
P. TIM, P. -C. LIN, W. MISIOLEK, J. WEI, S. MASUNO,
M. TSUKAMOTO, E. HORI, Y. SATO, Y. TAO, D. YUDHISTIRO
and S. YUNUS
Laser Welding of Commercially Pure Titanium Foils.
Quantum Beam Sci., 6 (2022), 1-11.

T. OHKUBO, T. SENDA, E. MATSUNAGA and Y. SATO
Numerical Simulation of a Laser‑induced Bubble of
New Laser Propulsion Method Inhaling Water
Appl. Phys. A, 128 (2022), 811-1-811-8.

23

T. ARITA, Y. SATO, Y. KURITA, M. MIZUTANI, H. NAKANO and
M. TSUKAMOTO
In Situ Observation of Dynamics of Keyhole andMolten Pool in Laser Welding for Development of
Spatter Suppression
J. Laser Appl., 34 (2022), 32017.

K. MAEDA, Y. SATO, K. TAKENAKA, S. FUJIO, R. SUZUKI,
T. SUGA and M. TSUKAMOTO
Behavior of Melt Flow and Porosity Formation in
Laser Welding of Steel to Aluminum with
Cold-Sprayed Steel Interlayer
J. Laser Appl., 34 (2022), 42033.

Y. SATO and M. TSUKAMOTO
Development of Multi Beam Laser Metal Deposition
with Blue Diode Lasers for Multi-Material
Review Laser Eng., 50, 9 (2022), 504-509 (inJapanese).

K. TAKENAKA, Y. SATO, S. FUJIO, K. NISHIDA, R. ITO, E. HORI,
S. KATO, M. SUWA, S. UNO, K. TOJO and M. TSUKAMOTO
Bead-on-plate Welding of Pure Copper with a
1.5-kW High-Power Blue Diode Laser
Weld. World, 67 (2022), 99-107..

K. TAKENAKA, Y. SATO and M. TSUKAMOTO
Effect of Polymer Permittivity on Periods of LIPSS
Formed on Titanium with Femtosecond Laser
Pulses.
Appl. Phys. A, 128 (2022), 881..

K. TAKENAKA, Y. SATO, N. YOSHIDA, M. YOSHITANI, M. HEYA
and M. TSUKAMOTO
Additive Manufactured of Pure Copper by Blue
Diode Laser Induced Selective Laser Melting
J. Laser Appl., 34 (2022), 42041.

K. MAEDA, R. SUZUKI, Y. SATO, T. SUGA and M. TSUKAMOTO
Developing Laser Welding of Steel to Aluminum for
Body Weight Reduction of Transportation
Equipment
Review Laser Eng., 50 (2022), 515-519 (inJapanese).

M. IHAMA, Y. SATO, Y. MIZUGUCHI, N. YOSHIDA,
S. SRISAWADI, D. TANPRAYOON, T. SUGA and M. TSUKAMOTO
Suppression of Denudation Zone Using Laser Profile
Control in Vacuum Selective Laser Melting
J. Laser Appl., 35 (2022), 12004.
H. SERIZAWA, Y. SATO, M. TSUKAMOTO, T. NOZAWA and
H. TANIGAWA
Laser Cladding of Copper Powder on Tungsten for
Divertor in ITER By Multiple Laser Beams Focusing
SystemJ. Japan Laser Proc. Scy., 29, 2 (2022), 22-28 (inJapanese).

Y. YAMASHITA, T. KUNIMINE, Y. SATO, Y. FUNADA and
M. TSUKAMOTO
Formation of Compositionally Graded Cemented
Carbides by Multi Beam Laser Metal Deposition
Review Laser Eng., 50 (2022), 527-531 (inJapanese).
Y. MIZUGUCHI, M. IHAMA, Y. SATO, N. YOSHIDA,
S. SRISAWADI, D. TANPRAYOON and M. TSUKAMOTO
Effect of Modulated Pulses on the Fabrication of
Ti-6al-4v by Spatter-Less Selective Laser Melting in
VacuumAppl. Phys. A, 128 (2022), 939.

Y. SUGIMOTO, S. MINEOKA and H. SERIZAWA
Friction Stir Spot Welding and Its Weld-Bond of
Aluminum Alloy and CFRP
J. Japan Inst. Lgt. Metls., 72, 10 (2022) (inJapanese).
T. KOZAWA
Microstructural
Developmentof
MnCO3
Microsphere Compacts through Hydrothermal
Hot-Pressing
J. Eur. Ceram. Soc., 42, 4 (2022), 1530-1536..

Y. SATO, Y. MORIMOTO, K. ONO, K. TAKENAKA, T. KAMATA,
M. HEYA and M. TSUKAMOTO
Copper Alloy Layer Formation with Multi Beam Type
Laser Coating with Blue Diode Lasers
IEEJ Trans. Electr. Infor. & Systm., 142 (2022),
1075-1080 (in Japanese).

24

T. KOZAWA, F. KITABAYASHI, K. FUKUYAMA and M. NAITO
CarbonNanoparticle-Entrapped
Macroporous
Mn3O4 Microsphere Anodes with Improved Cycling
Stability for Li-ion Batteries
Sci. Rep., 12 (2022), 11992.

A. KAPIL, T. SUGA, M. TANAKA and A. SHARMA
Towards Hybrid Laser-Arc Based Directed Energy
Deposition: Understanding Bead Formation throughMathematical Modeling for Additive Manufacturing
J. Manufacturing Processes, 76 (2022), 457-474.

A. KONDO, T. KOZAWA, T. ISHII and M. NAITO
Wet Milling Synthesis of Ammonium Cobalt
Phosphate Hydrate Platelets for LCP-olivine
Cathodes for LIB Using a Bead Mill
Int. J. Appl. Ceram. Technol., (2022), 1-8.

U. -K. MOHANTY, A. KAPIL, Y. ABE, T. SUGA, M. TANAKA and
A. SHARMA
A Resource-Efficient Process Design for Heavy
Fabrication: A Case of Single-Pass-Per-Layer Narrow
Gap Welding
Sustain. Mater. Technol., 33 (2022), e00488.

T. KOZAWA, Y. LI and K. HIRAHARAFormation Mechanism of Maze-Like OpenMacropores in Mn3O4 Microspheres by Heating in
Water Vapor and Their Single-Particle Compressive
Behavior
Adv. Powder Technol., 33, 12 (2022), 103844.

[Materials, Metallurgy & Weldability]
S. MATSUI, K. USHIODA and H. FUJII
Relationship between Cross Tension Strength andCarbon Content of Lower Sheet in Friction Element
Welded Steel Joints
Quart. J. Japan Weld. Scity., 40, 1 (2022), 9-17 (inJapanese).

T. TASAKA, T. OHMURA, A. KONDO and M. NAITO
Effect of Heating Temperature on the Thermal andMechanical Properties of Fibrous Fumed Silica
Compacts
J. Soc. Powder Technol. Jpn., 59 (2022), 152-159 (inJapanese).

F. SPIRRETT, K. -C. DATSIOU, M. MAGALLANES, I. ASHCROFT
and R. GOODRIDGE
Powder-fed Directed Energy Deposition of Soda
Lime Silica Glass on Glass Substrates
J. Am. Ceram. Soc., (2022), 1-14.

D. TAN, Z. LAO, W. GUO, A. KONDO, T. KOZAWA, M. NAITO,
K. PLUCKNETT and H. LIN
Fabrication and Modelling of Si3N4 Ceramics with
Radial Grain Alignment Generated throughCentripetal Sinter-Forging
J. Mater. Sci. Technol., 126 (2022), 1-14.

F. SPIRRETT, R. GOODRIDGE, I. ASHCROFT, K. DATSIOU,
C. HOLCROFT and S. KIRIHARA
Additive Manufacturing Processing of Glass
Materials
J. Smart Process., 11, 4 (2022), 163-170 (inJapanese).

A. KONDO, T. KOZAWA, T. ISHII, J. KANO and M. NAITO
Mechanical Synthesis of Lithium Titanate Hydrate in
Liquid Phase Using a Bead MillJ. Soc. Powder Technol. Jpn., 59 (2022), 324-330 (inJapanese).

D. -L. HAN, H. TATSUMI, F. HUO and H. NISHIKAWA
Effect of Isothermal Aging on Properties of In-48Sn
and In-Sn-8Cu Alloys
Proc. 2022 IEEE 72nd Electronic Components andTechnology Conf. (ECTC), (2022), 2148-2152.

Y. HAYASHI, Y. KITAMURA, N. ABE, K. IKEDA,
Y. TATSUMI and M. TSUKAMOTO
Surface Modification Technology Using Laser Metal
Deposition and Its Applications
Review Laser Eng., 50, 9 (2022), 520-526 (inJapanese).

S. NITTA, H. TATSUMI and H. NISHIKAWA
Preparation and Evaluation of Sn-In Alloys with
Surface-Modified ZrO2 Nanoparticles
Proc. 32nd Microelectronics Symp. (MES2022),(2022), 199-202 (in Japanese).

25

H. TATSUMI and H. NISHIKAWA
Anisotropic Highly Conductive Joints Utilizing
Cu-Solder
Microcomposite
StructureforHigh-Temperature Electronics Packaging
Mater. Des., 223 (2022), 111204.

T. KAWAKUBO, K. USHIODA and H. FUJII
Grain Boundary Segregation and Toughness ofFriction-Stir-Welded High-Phosphorus Weathering
Steel
Mater. Sci. Eng. A., 832 (2022), 142350.

M. TAKAHASHI
Production of Glass-to-glass Anodically-bondedInterfaces in Which Conductive Areas and Insulating
Areas Coexist
27th Symp. on "Microjoining and AssemblyTechnology in Electronics", (2022), 89-94 (inJapanese).

T. OKADA, M. YASUYAMA, M. UCHIHARA and H. FUJII
Effect of Paint Baking Thermal Cycle on Joint
Strength of Spot Welds
Weld. Int., 36, 2 (2022), 76-86.
T. NAGAI, H. MOROHASHI, Y. HANGAI, H. MITSUGI, Y. AOKIand H. FUJII
Foaming of Precursor of Porous Aluminum
Consisting of Dissimilar Aluminum Alloys by
Frictional Heating during Friction Stir Processing
Journal of Japan Institute of Light Metals, 72, 2(2022), 54-57 (in Japanese).

M. TAKAHASHI
Effect of Bonding Voltage on the Progress of
Glass-to-glass Anodic Bonding Using a Conductor
Layer as an Intermediary
28th Symp. on "Microjoining and AssemblyTechnology in Electronics", (2022), 120-125 (inJapanese).

J. -W. CHOI, Y. AOKI, K. USHIODA and H. FUJII
Effect of the Welding Parameters on Microstructureand Mechanical Properties of Linear Friction Welded
Ti-6Al-4V Alloy
J. Manufacturing Processes, 75 (2022), 651-663.).

S. FUKUMOTO, K. NAKAMURA, M. TAKAHASHI, Y. TANAKA,
S. TAKAHASHI and M. MATSUSHIMA
Low-Temperature Bonding of Copper by Copper
Electrodeposition
Mater. Trans., 63, 6 (2022), 783-788.

J. -W. CHOI, W. LI, K. USHIODA, M. YAMAMOTO and H. FUJII
Effect of Applied Pressure on Microstructure andMechanical Properties of Linear Friction Welded
AA1050-H24 and AA5052-H34 Joints
Sci. Technol. Weld. Joining, 27, 2 (2022), 92-102.

H. YAMAMOTO, S. KOGA, K. ITO and Y. MIKAMI
Fatigue Strength Improvement Due to Alloying
Steel Weld Toes with WC Tool Constituent Elements
through Friction Stir Processing
Int. J. Adv. Manuf. Technol., 119 (2022), 6203-3213.

J. CHOI, W. LI, K. USHIODA, M. YAMAMOTO and H. FUJIIMicrostructure Evolution and Hardness Distributionof Linear Friction Welded AA5052-H34 Joint andAA5083-O Joint
J. Mater. Res. Technol-JMRT, 17 (2022),
2419-2430.

M. IMAM, S. -N. -S. -H. CHITTAJALLU, H. GURURANI,H. YAMAMOTO, K. ITO, P. -K. PARCHURI, R. MISHRA,
A. SHARMA, A. RICHHARIYA and V. CHINTHAPENT
Experimental Study on Improving the Additively
Manufactured GMAW and TIG Beads Using FSPMaterials Today: Proc., 56 (2022), 690-705.

W. ZEXI, K. USHIODA and H. FUJIISuppression of Softening in Heat Affected Zone by
Mo Addition in Friction Stir Welded Martensitic
Steel
Sci. Technol. Weld. Joining, 27, 3 (2022), 204-212..

M. LIU, L. ZHANG, B. ZHAO, F. CHEN, X. XIA, Y. YU,
H. YAMAMOTO and K. ITO
Orientation Dependence of Plastic Deformation ofSintered Nd-Fe-B Magnets at High Temperature
Acta Mater., 244 (2022), 118559.

26

Z. ZENG, M. ZHOU, M. ESMAILY, Y. ZHU, S. CHOUDHARY,
J. -C. GRIFFITH, J. MA, Y. HORA, Y. CHEN, A. GULLINO,
Q. SHI, H. FUJII and N. BIRBILIS
Corrosion Resistant and High-Strength Dual-Phase
Mg-Li-Al-Zn Alloy by Friction Stir Processing
Commun. Mater., 18 (2022), 1-10..

M. SALEH, H. LIU, K. USHIODA and H. FUJII
Effect of Zn Interlayer on Friction Stir Butt Weldingof A1100 and SUS316L Stainless Steel
Sci. Technol. Weld. Joining, 27, 5 (2022), 361-373.
T. Nagira, T. NAKAMURA, F. YOSHINAKA, T. SAWAGUCHI,Y. AOKI, M. KAMAI, H. FUJII, A. TAKEUCHI and M. UESUGIDirect Observation of Solidification Behaviors of
Fe-Mn-Si Alloys during TIG Spot Welding Using
Synchrotron X-ray
Scr. Mater., 216, 114743 (2022).

Y. HANGAI, K. OMIKA, M. INOUE, A. KITAMURA, H. MITSUGI,
H. FUJII and Y. KAMAKOSHI
Effect of Porosity of Aluminum Foam on Welding
between Aluminum Foam and Polycarbonate Plate
during Friction Welding
Int. J. Adv. Manuf. Technol., 120 (2022), 1071-1078.
s

S. MATSUI, K. USHIODA and H. FUJII
Relationship between Cross Tension Strength andCarbon Content of Lower Sheet in Friction Element
Welded Steel Joints
Weld. Int., 36, 8 (2022), 500-509.).

Y. MATSUSHIMA, Y. HANGAI, H. MITSUGI and H. FUJII
Effects of Rotational Speed and Processing Time on
Bonding Strength of Porous Aluminum and
Thermoplastic Resin during Friction Welding
J. Japan Inst. Met. Mater, 86, 5 (2022), 71-76 (inJapanese).

M. SIKJEONG, T. -M. PARK, D. -IIKIM, H. FUJII, H. -J. IM,
P. CHOI, S. LEE and J. HAN
Improving Toughness of Medium-Mn Steels after
Friction Stir Welding through Grain Morphology
TuningJ. Mater. Sci. Technol., 118 (2022), 243-254.

T. YAMAMOTO, Y. HANGAI, H. MITSUGI, S. KOYAMA, R. SUZUKI,
M. MATSUBARA and H. FUJII
Fabrication of Porous Aluminum Composites
Containing Hollow Ceramics
J. Porous Mat., 29 (2022), 1363-1368.

J. CHOIA, W. LI, K. USHIODA, M. YAMAMOTO and H. FUJIIStrengthening Mechanism of High-Pressure Linear
Friction Welded AA7075-T6 Joint
Mater. Charact., 191, 112112 (2022).

A. MASUDA, Y. HANGAI, H. MITSUGI, R. SUZUKI,
M. MATSUBARA and H. FUJII
Investigation of Separation of A1050 Aluminum andSS400 Steel Joined Body by Foaming
Journal of The Japan Institute of Light Metals, 72,
6 (2022), 366-370 (in Japanese).

S. MATSUI, K. USHIODA and H. FUJII
Effect of Ferrite Grain Shape in Friction Element
Welds on Cross Tension Strength
Q. J. Jpn. Weld. Soc., 40, 3 (2022), 149-158.

Y. HANGAI, H. MOROHASHI, Y. AOKI, H. MITSUGI and H. FUJII
Process of Simultaneously Fabricating and Foaming
Precursor Using Frictional Heat Generated during
Friction Stir Welding
Int. J. Adv. Manuf. Technol., 121, 6 (2022),
3207-3214.

T. OKADA, H. UEDA, K. MATSUDA, Y. MIYAZAKI,M. YASUYAMA and H. FUJII
Effect of Strength of Steel Sheets on Tensile Shear
Strength and Failure Mode of Dissimilar Joint of
Spot Welds
Q. J. Jpn. Weld. Soc., 40, 4 (2022), 216-225.

Y. WANG, S. TSUTSUMI, T. KAWAKUBO and H. FUJII
Fatigue Strength and Fracture Characteristics ofLinear Friction Welded Joints of Weathering Mild
Steel
Fatigue Fract. Eng. Mater. Struct., 45, 10 (2022),2769-2783.

T. OKADA, H. UEDA, Y. MIYAZAKI, M. YASUYAMA and H. FUJII
Effect of Strength of Steel Sheets on Peel Tensile
Strength and Failure Mode of Dissimilar Joint of
Spot Welds
Q. J. Jpn. Weld. Soc., 40, 4 (2022), 226-237.

27

H. FUJIIFSW(Friction Stir Welding), LFW(Linear Friction
Welding) and RW(Rotary Welding)
J. Light Metal Weld., 60, 10 (2022), 1-5 (inJapanese).

X. WANG, Y. MORISADA, K. USHIODA and H. FUJII
Double-sided Friction Stir Spot Welding of
Ultra-High Strength C-Mn-Si Martensitic Steel by
Adjustable Probes
J. Mater. Process. Technol., 300 (2022), 117422.

Z. WU, T. NAGIRA, K. USHIODA, G. MIYAMOTO and H. FUJIIMicrostructures and Tensile Properties of Friction
Stir Welded 0.2%C-2%Si-Cr Steels
J. Iron Steel Inst. Jpn., 108, 12 (2022), 911-925 (inJapanese).

T. NAGAKOKA, H. HIRANO, Y. KIMOTO, T. TAKEUCHI,K. YAMADA, Y. MORISADA and H. FUJII
Effect of Silane Coupling Treatment on Friction Stir
Welding of Pure Aluminum and CFRP
J. Light Metal Wel., 60, 4 (2022), 138-143 (inJapanese).

T. KAWAKUBO, K. USHIODA, H. FUJII, T. KAMO andT. YOKOTA
EffectsofCarbonandPhosphorus
On
Microstructure and Mechanical Properties ofFriction Stir Welded Weathering Steels
J. Iron Steel Inst. Jpn., 108, 12 (2022), 926-936 (inJapanese)..

Y. LIM, Y. MORISADA and H. FUJII
Effect of Compression Rate on Microstructure andMechanical Properties of Pressure-controlled Joule
Heat Forge Welded AA5052-H34 Joint
J. Smart Process., 11, 3 (2022), 135-140 (inJapanese).

Y. AOKI, K. USHIODA and H. FUJII
Effect of Applied Pressure on Microstructure andHardness of Linear Friction Welded Martensitic SteelJ. Iron Steel Inst. Jpn., 108, 12 (2022), 1011-1020 (inJapanese)..

A. SHARMA, Y. MORISADA, T. NAGAOKA and H. FUJII
Enhanced Strength-Ductility Combination in the
Cold-Rolled Spark Plasma Sintered Pure Aluminium
by FSP
Mater. Charact., 188, 111914 (2022), 1-13.

Y. MIYANO, H. WASHIYA, H. SATO, Y. AOKI, M. KIMURA,
K. USHIODA and H. FUJIIFriction Stir Welding of 1.4 GPa-grade Tempered
Martensitic SteelJ. Iron Steel Inst. Jpn., 108, 12 (2022), 945-957 (inJapanese).

A. SHARMA, Y. MORISADA, T. NAGAOKA and H. FUJII
Influence of the Number of FSP Passes on theStrength-Ductility Synergy of Cold-Rolled Spark
Plasma Sintered Pure Aluminum
J. Manufacturing Processes, 79 (2022), 296-304.
Y. LIM, Y. MORISADA, H. LIU and H. FUJII
A Sound Dissimilar AA5052/S45C Joint Formed by
Uniform and Simultaneous Deformation of BothMaterials Using Pressure-controlled Joule Heat
Forge Welding
ISIJ Int., 62, 8 (2022), 1715-1724.

H. TSUCHIYA, K. HATSUDA, T. KAWAKUBO, K. USHIODA,
H. FUJII, M. YAMASHITA and S. FUJIMOTO
Protectiveness of Rust Layers on Friction Stir
Welded High Phosphorus Carbon Steels
J. Iron Steel Inst. Jpn., 108, 12 (2022), 937-944 (inJapanese).

N. KONDA, T. KITAMURA, M. MORI, Y. AOKI, Y. MORISADA
and H. FUJII
Effect of Linear Friction Welding Conditions on
Charpy Absorbed Energy for Mediumhigh Carbon
Steel Plates
J. Iron Steel Inst. Jpn., 108, 12 (2022), 1002-1010 (inJapanese).

A. SHARMA, Y. MORISADA and H. FUJII
Bending Induced Mechanical Exfoliation ofGraphene Interlayers in a through Thickness Al-GNP
Functionally Graded Composite Fabricated via
Novel Single-Step FSP Approach
Carbon, 186 (2022), 475-491.

28

M. MORI, T. BAN, H. TAKEUCHI, Y. MORISADA and H. FUJIIFriction Stir Welding of Thick Steel Plate Using Silicon
Nitride Tool
J. Iron Steel Inst. Jpn., 108, 12 (2022), 958-965 (inJapanese).

T. MIURA, H. FUJII and K. USHIODA
Effects of Carbon Content and Austenite Grain Size
on Retained Austenite Fraction in Stir Zone of
Friction Stir Welded 6%Ni Carbon Steels
Tetsu-to-Hagane, 108, 6 (2022), 343-353 (inJapanese).

M. ZHOU, Z. ZENG, C. CHENG, Y. MORISADA, Q. SHI,
J. -Y. WANG and H. FUJII
Effect of the Processing Route on theMicrostructure and Mechanical Behavior ofSuperlight Mg-9Li-1Zn Alloy via Friction Stir
Processing
J. Magnes. Alloy., 10, 11 (2022), 3064-3081.

T. MIURA, H. FUJII and K. USHIODA
Prediction of Material Flow Behavior in Stir Zones ofFriction Stir Welded 6％Ni Carbon Steel Based on
Texture Analysi
J. Japan Inst. Met. Mater. V, 86, 6 (2022), 87-96 (inJapanese).

K. FUNAKI, Y. MORISADA, T. FUKASAWA, Y. ABE and H. FUJII
Effect of Silicon Nitride Microstructure on
Characteristics of FSW Tool for Steel and Tool Life
Q. J. Jpn. Weld. Soc., 40, 4 (2022), 195-201 (inJapanese).

T. MIURA, H. FUJII and K. USHIODA
Effect of Welding Condition on Texture Evolution ofAustenite
in
Stir
Zone
and
Martensitic
Transformation Behavior during Cooling in Ni-C
Tetsu To Hagane-J. Iron Steel Inst. Jpn., 108, 9(2022), 631-641.

M. KOYAMA, T. YAMASHITA, S. MOROOKA, T. SAWAGUCHI,Z. YANG, T. HOJO, T. KAWASAKI and S. HARJO
Microstructure and Plasticity Evolution During
Lüders Deformation in an Fe-5Mn-0.1C Medium-Mn
Steel
ISIJ international, online (2022)..

T. MIURA, H. FUJII and K. USHIODA
Effects of Carbon Content and Austenite Grain Size
on Retained Austenite Fraction in Stir Zone of
Friction Stir Welded 6%Ni Carbon Steels
ISIJ Int., 62, 9 (2022), 1908-1917.

M. LEE, T. KAWASAKI, T. YAMASHITA, S. HARJO, Y. HYUN,
Y. JEONG and T. JUN
In-situ Neutron Diffraction Study of Lattice
Deformation Behavior of Commercially Pure
Titanium at Cryogenic Temperature
Sci. Rep., 12 (2022), 3719.

G. ONGTRAKULKIJ, A. KHANTACHAWANA, J. KAJORNCHAIYAKUL
and K. KONDOH
Effects of the Secondary Shot in the Double Shot
Peening Process on the Residual Compressive StressDistribution of Ti-6Al-4V
Heliyon, 8 (2022), e08758.

N. KOGA, T. YAMASHITA, K. OGAWA and O. UMEZAWA
Statistical Analysis of Influential Factors on the
Stability of Retained Austenite in Low Alloy TRIP
Steel
Mater. Trans., 63, 5 (2022), 693-702.

K. KONDOH, R. TAKEI, S. KARIYA, S. LI and J. UMEDA
Quantitative Analysis on Surface Potentials of
Impurities and Intermetallic Compounds Dispersed
in Mg Alloys Using Scanning Kelvin Probe ForceMicroscopy
andUltraviolet
Photoelectron
Spectroscopy
Mater. Chem. Phys., 279 (2022), 125760..

T. YAMASHITA, K. USHIODA and H. FUJII
Inhomogeneity of Microstructure along theThickness Direction in Stir Zone of Friction Stir
Welded Duplex Stainless Steel
Tetsu To Hagane-J. Iron Steel Inst. Jpn., 108, 12(2022), 966-978 (in Japanese).

X. GUO, L. JIA, Z. LU, Z. XING, H. XIE and K. KONDOH
Preparationof
Cu/CrB2
Composites
withWellbalanced Mechanical Properties and Electrical
Conductivity by Ex-Situ Powder Metallurgy
J. Mater. Res. Technol-JMRT, 17 (2022), 1605-1615.

29

N. SUESAWADWANID, A. KHANTACHAWANA, K. SRIRUSSAMEE
and K. KONDOH
Effect of Nb Content and Water Quenching on
Microstructure and Mechanical Properties of Ti-Nb
Alloys Fabricated by Spark Plasma Sintering
Powder Metall., (2022).

C. ZHANG, L. JIA, H. XIE, R. NIU, Z. LU and K. KONDOH
Simulation on the Direct Powder Rolling Process of
Cu Powder by Drucker-Prager/Cap Model and Its
Experimental Verification
Metals, 12 (2022), 1145.
A. DEGNAH, H. -F. ALNASER, E. -S. -M. SHERIF,
I. ALHOWEML, K. KONDOH and A. ALHAZAA
Investigation of Ti-Zr-Fe-N-H System Properties forMarine Applications
Mater. Today Commun., 32 (2022), 103978.

L. CAO, B. CHEN, J. WAN, K. KONDOH, B. GUO, J. SHEN and
J. -S. LI
Superior High-Temperature Tensile Properties of
Aluminum Matrix Composites Reinforced with
Carbon Nanotubes
Carbon, 191 (2022), 403-414.

L. JIA, M. HOU, C. ZHANGA, J. XUA, S. LIA, Z. LUA and
K. KONDOH
Accelerated Diffusion Phenomenon of Ti-B4C
System and Its Influence on Resulted Composites
J. Mater. Eng. Perform., (2022).

J. WAN, B. CHEN, J. SHEN, W. SHI, K. KONDOH, S. LI and
J. -S. LI
Developing Dual-Textured Titanium (Ti) Extrudates
via Utilizing the Β Transus in Commercially Pure Ti
Mater. Des., 215 (2022), 110459.

K. KONDOH, A. ISSARIYAPAT, S. KARIYA, S. LI, A. ALHAZAA
and J. UMEDA
High Strength Ti-Zr Alloys With Balanced Ductility
Fabricated By Powder Metallurgy And Additive
Manufacturing Routes
Proc. World PM2022, (2022).

R. ZHENG, J. CUI, Y. YANG, S. LI, R. -D. -K. MISRA,
K. KONDOH, Q. ZHU, Y. LU and X. LI
Enhanced Densification of Copper during Laser
Powder Bed Fusion through Powder Surface
Alloying
J. Mater. Process. Technol., 305 (2022), 117575.

J. CUI, S. LI, R. -D. -K. MISRA, K. GENG, K. KONDOH,
G. LI and Y. YANG
Printability Enhancement and Mechanical Property
Improvement via in Situ Synthesis of Carbon
Nanotubes on Aluminium Powder
Powder Technol., 413 (2022), 118038.

K. KONDOH, R. TAKEI, S. KARIYA, S. LI and J. UMEDA
Local Galvanic Corrosion Analysis on Cast Mg-Ca
Binary Alloy Using Scanning Kelvin Probe ForceMicroscopy
Mater. Lett., 319 (2022), 132266.

K. KONDOH, S. KARIYA, A. ISSARIYAPAT, S. LI and J. UMEDA
Advanced
Powder
Metallurgy
ProcessforHigh-strengthened Titanium Materials Using
Ubiquitous Solid Solutes
Proc. JSME Int. Conf. on Materials and Processing
2022, (2022).

L. ZHANG, C. HU, Y. YANG, R. -D. -K. MISRA, K. KONDOH
and Y. LU
Laser Powder Bed Fusion of Cemented Carbides by
Developing a New Type of Co Coated WC
Composite Powder
Addit. Manuf., 55 (2022), 102820.

Y. WANG, L. ZHANG, Y. YANG, K. KONDOH, L. SUN and Y. LU
Elimination of Η Phase in WC-Co Cemented
Carbides during Laser Powder Bed Fusion by
Powder Coating Compensation Strategy
J. Am. Ceram. Soc., 106, 3 (2022), 1681-1693.

K. -Y. LIU, J. -S. LI, J. WAN, Q. YAN, K. KONDOH, J. SHEN,
S. LI and B. CHEN
Sintering-free
FabricationofHigh-Strength
Titanium Matrix Composites Reinforced with
Carbon Nanotubes
Carbon, 197 (2022), 412-424.

30

R. YAO, K. CHEN, K. KONDOH, X. DONG, M. WANG, X. HUA
and A. SHAN
Microstructure and Mechanical Properties ofFriction Stir Lap Welds between FeCoCrNiMn High
Entropy Alloy and 6061 Al Alloy
Mater. Des., 224 (2022), 111411.

W. SHI, Y. YANG, N. KANG, M. WANG, B. CHEN, Y. LI,
J. UMEDA, K. KONDOH and J. SHEN
Microstructure and Mechanical Characterizations of
Additively Manufactured High Oxygen-Doped
Titanium
Mater. Charact., 189 (2022), 112008.

X. ZHUO, H. YAO, K. CHEN, K. KONDOH, M. WANG, X. HUA
and A. SHAN
Friction Stir Lap Welding of AZ31 and TC4:
Mechanical Properties and Bonding Mechanism
Mater. Charact., 195 (2022), 112507.

J. PETERSON, A. LSSARIYAPAT, J. UMEDA and K. KONDOH
The Effects of Heat Treatment and Carbon Content
on the Mirostructure and Mechnical Properties ofLaser Powder Bed Fision Ti-6Al-4V with Dissolved
TiC Particles
J. Alloy. Compd, 920 (2022), 165930.

Y. OZAKI, N. NOMURA, Y. SHIGETA, K. KONDOH, M. ARAMAKI
and I. OBAYASHI
Additive Manufacturing Materials as Powder
Metallurgy Materials, An Approach for Prediction of
Mechanical Properties by Quantification of
Microstructures
Bulletin Iron & Steel Inst. Japan, 27, 12 (2022),825-835 (in Japanese).

J. UMEDA, H. FUJII, R. TAKIZAWA, T. TERAMAE, A. ISSARIYAPAT,
S. KARIYA, Y. YANG, S. LI and K. KONDOH
TribologicalBehavior
of
Titanium-Sintered
Composites with Ring-Shaped TiN Dispersoids
Lubricants, 10 (2022), 254.
J. UMEDA, H. MIYAJI, B. FUGETSU, S. -K. MOON,
A. KHANTACHAWANA, S. KARIYA and K. KONDOH
Advanced Coating Process of Un-bundled Carbon
Nanotubes on Titanium Plate to Improve
Tribological Property and Biocompatibility
Proc. JSME Int. Conf. on Materials and Processing
2022, (2022).

G. ONGTRAKULKIJ, J. KAJORNCHAIYAKUL, K. KONDOH and
A. KHANTACHAWANA
Investigation of Microstructure, Residual Stress, andHardness of Ti-6Al-4V after Plasma Nitriding
Process with Different Times and Temperatures
Coatings, 12, 12 (2022), 1932.

S. KARIYA, A. ISSARIYAPAT, A. BAHADOR, J. UMEDA, J. SHEN
and K. KONDOH
Ductility Improvement of High-Strength Ti-O
Material upon Heteromicrostructure Formation
Mater. Sci. Eng. A., 842 (2022), 143041.

J. WAN, H. GENG, B. CHEN, J. SHEN, K. KONDOH and J. LI
Evading Ductility Deterioration in Aluminum Matrix
Composites via Intragranulation of
Nano-Reinforcement by Reactive Selective Laser
Melting
Mater. Sci. Eng. A., 863 (2022), 144552.

A. LSSARIYAPAT, S. KARIYA, K. SHITARA, J. UMEDA and
K. KONDOH
Solute-induced Near-Isotropic Performance of Laser
Powder Bed Fusion Manufactured Pure Titanium
Adiv. Manuf., 56 (2022), 102907.

K. SHITARA, K. YOKOTA, M. YOSHIYA, J. UMEDA and
K. KONDOHFirst-principles Design and Experimental Validationof
Β-TiAlloyswithHigh
Solid-Solution
Strengthening and Low Elasticities
Mater. Sci. Eng. A., 843 (2022), 143053.

A. BAHADOR, A. YURTSEVER, A. AMRIN, S. KARIYA, J. UMEDA,
J. SHEN, B. CHEN, T. FUKUMA and K. KONDOH
Room
TemperatureandHigh-Temperature
Properties of Extruded Ti-4Fe-3W/2TiC Compositesin Α+β and Β Phases
Mater. Des., 220 (2022), 110901.

Y. YANG, J. SHEN, J. UMEDA, K. KONDOH and Y. LI
Investigation into the Intermetallic Layers in Ti/Al
Multi-Layer Composites Produced via Accumulative
Rolling and Sintering
Sci. Adv. Mater., 14 (2022), 1-6.

31

S. KARIYA, A. ISSARYAPAT, H. UMEDA and K. KONDOH
Effect of Oxygen on Microstructure Formation on
L-PBFed Ti Alloy
Bulletin Iron & Steel Inst. Japan, 27, 12 (2022),
906-912 (in Japanese).

S. KIRIHARA
Development of Metal Structures by
Stereolithographic Additive Manufacturing
J. Smart Process., 11, 4 (2022), 171-174 (inJapanese).

P. GENG, M. MORIMURA, S. WU, Y. LIU, Y. MA, N. MA,
Y. AOKI, H. FUJII, H. MA and G. QIN
Prediction of Residual Stresses within Dissimilar
Al/steel Friction Stir Lap Welds Using an
Eulerian-based Modeling Approach
J. Manufacturing Processes, 79 (2022), 340-355.

F. SPIRRETT, T. ITO and S. KIRIHARA
High-Speed Alumina Stereolithography
MDPI Appl. Sci., 12, 19 (2022), 9760.
M. TAKAHASHI, F. SPIRRETT and S. KIRIHARAReduction of Dewaxing and Sintering Time byControlling the Particle Size of YSZ Particles for
Stereolithography
Ceramics, 5, 4 (2022), 814-820.

Y. OGAWA, T. HORITA, N. IWATANI, K. KADOI, D. SHIOZAWA
and T. SAKAGAMI
Evaluation of Fatigue Strength Based on Sissipated
Energy for Laser Welds
Infrared Phys. Technol., 125 (2022), 104288.

K. FUKUSHIMA, T. -S. SUZUKI, C. -E. ÖZBILGIN, K. KOBAYASHI,
H. ABE and Y. SUZUKI
PH-Controlled Synthesis and Spark Plasma Sinteringof Fine and Homogeneous MgZr4(PO4)6 Powder
J. Ceram. Soc. Jpn., 130, 2 (2022), 243-248.

M. SAKATA, K. KADOI and H. INOUE
Mechanism for Enhanced Age Hardening of 22 % Cr
Duplex Stainless Steel Weld Metal Fabricated with
Grade 2209 Filler Material
Mater. Today Commun., 33 (2022), 104201.

T. NAKAJIMA, H. ABE and Y. SUZUKI
Effect of Transition Metal Oxides Addition on the
Color Tone of Bi4V2O11-based Red Pigments
J. Ceram. Soc. Jpn., 130, 2 (2022), 236-242.

Y. HOU, Y. NAKAMORI, K. KADOI, H. INOUE and H. BABA
Initiation Mechanism of Pitting Corrosion in Weld
Heat Affected Zone of Duplex Stainless SteelCorrosion Sci., 110278 (2022).

F. LI, G. ZHANG and H. ABE
Low-temperature Synthesis of High-Entropy(Mg0.2Co0.2Ni0.2Cu0.2Zn0.2)O Nanoparticles via Polyol
Process
Open Ceramics, 9 (2022), 100223.

Y. HOU, G. CHENG, K. KADOI and H. INOUE
Acceleration Mechanism of Ti2O3 on TiN Formation
and Δ-Ferrite Nucleation of Ferritic Stainless SteelJ. Alloy. Compd, 912 (2022), 165221.

Y. INABA, K. SATO, N. KANNARI, H. ABE, A. SCIAZKO and
N. SHIKAZONO
Growth of Strontium-doped Lanthanum Chromium
Manganite/Gadolinium-doped
Ceria(LSCM/GDC)
Nanocomposite Particles as Ni-free Solid Oxide Fuel
Cell Anode Material
J. Fuel Cell Technol., 22, 4 (2022), 86-90.

Y. HOU, G. CHENG, K. KADOI, H. INOUE, Q. RUAN, J. PAN and
X. CHEN
Formation Mechanism of Stripe Pattern Defect in
Cold-Rolled AISI 441 Stainless Steel Stabilized by Ti
and Nb
Metall. Mater. Trans. B, 53 (2022), 2499-2511.

T. NAKA, T. NAKANE, J. VALENTA, H. MAMIYA, S. ISHII,
M. NAKAYAMA, H. ABE, T. TOGASHI and T. UCHIKOSHI
Slow Spin Dynamics in a CoM2O4 A-site Spinel(M=Al, Ga, and Rh)
J. Phys. Commun., 6, 5 (2022), 055001.

W. SHEN, G. CHENG, Y. HOU, Y. LI, X. ZHAN, J. LIU and
H. ZHENG
Effects of the Cooling Rate and Recovery
Temperature on the Growth of AlN Precipitates inGear Steel
Steel Res. Int., 93, 10 (2022).

32

H. ABE, F. LI and K. SATO
Syntheses of Nano and Micro Particles
Direct-Writing
J. Smart Process., 11, 4 (2022), 148-152(in Japanese).

S. OHARA, T. NAKA and T. HASHISHIN
Ferromagnetism and Exchange Bias in Compressed
Ilmenite–hematite Solid Solution as a Source ofPlanetary Magnetic Anomalies
Sci. Adv., 8, 14 (2022).

forC. -T. THANH, P. -N. -D. DUOC, N. -T. HUYEN, V. -T. THU,
N. -X. NGHIA, N. -H. BINH, P. -V. TRINH, N. TU, C. ANH,
V. TU, P. -N. MINH, H. ABE, E. -D. OBRAZTSOVA and
N. -V. CHUC
Development of Electrochemical Sensor Based on
Polyalanine/CuCl-Gr/DWCNTs for Highly Sensitive
Detection of Glyphosate
Diam. Relat. Mat., 128 (2022), 109312.

S. RAJA, M. -R. MUHAMAD, F. YUSOF, M. -F. JAMALUDIN,
T. SUGA, H. LIU, Y. MORISADA and H. FUJIIFriction Stir Alloying of AZ61 and Mild Steel with
Al-CNT Additive
Sci. Technol. Weld. Joining, 27, 7 (2022), 533-540.
M. -A. -B. ARIFFIN, M. -R. -B. MUHAMAD, S. RAJA,
M. -F. JAMALUDIN, F. YUSOF, T. SUGA, H. LIU, Y. MORISADA
and H. FUJIIFriction Stir Alloying of AZ61 and Mild Steel with
Cu-CNT Additive
J. Mater. Res. Technol-JMRT, 21 (2022), 2400-2415.

T. HASHISHIN, H. ABE, M. MATSUDA, S. TSUREKAWA andH. KUBOTA
Synthesis of Functional Nanostructures in Solution,
Nano-joining of Dissimilar Semiconductors forEnvironmental Sensing
Manuf. & Technol., 74, 4 (2022), 11-14 (inJapanese).

A. SHARMA, Y. MORISADA and H. FUJII
Investigation of Through-Thickness Microstructural
Evolution and Mechanical Properties Variation in
Friction Stir Alloyed Al-Fe Alloy System
J. Alloy. Compd, 921 (2022), 166154.

C. -T. THANH, P. -N. -D. DUOC, P. -V. TRINH, N. -T. HUYEN,
N. -V. TU, C. -T. ANH, P. -V. HAI, K. YOSHIDA, H. ABE and
N. -V. CHUC
3D Porous Graphene/double-Walled Carbon
Nanotubes/gold Nanoparticles Hybrid Film for
Modifying Electrochemical Electrode
Mater. Lett., 330 (2022), 133308.

A. SHARMA, Y. MORISADA and H. FUJII
Through-Thickness Localized Strain Distribution andMicrostructural Characterization of Functionally
Graded Al/GNP Composite Fabricated by Friction
Stir Processing
Light Metals 2022, (2022), 274-282.

F. LI, S. SUN, Y. CHEN, T. NAKA, T. HASHISHIN, J. MARUYAMA
and H. ABE
Bottom-up Synthesis of 2D Layered High-Entropy
Transition Metal Hydroxides
Nanoscale Adv., 4, 11 (2022), 2468-2478.

S. KIRIHARA
Additive Manufacturing in Biomedical Applications:
Stereolithographic Additive Manufacturing ofBiological Scaffolds (book)Published by ASM, (2022).

T. HASHISHIN, H. TANIGUCHI, F. LI and H. ABE
Useful High-Entropy Source on Spinel Oxides for
Gas Detection
Sensors, 22, 11 (2022), 4233-4245.

[Mechanics, Strength & Structural Design]
H. CHEN, S. ZHAO, C. ZHANG, Z. SHI, F. GAO, Q. WANG,
Z. SHEN and W. LI
Interfacial Reaction and Thermoelectric Propertiesof Ca3Co4O9 Ceramic Diffusion Bonding Joints withDifferent Electrode Intermediate Layers
Ceram. Int., 48, 6 (2022), 8540-8547.

F. LI, G. ZHANG and H. ABE
Sintering of High-Entropy Nanoparticles Obtainedby
Polyol
Process:
A
Case
Study
of
(La0.2Y0.2Nd0.2Sm0.2Gd0.2)2Ce2O7-δ
J. Eur. Ceram. Soc., 42, 16 (2022), 7538-7545.

33

M. KOYAMA, T. YAMASHITA, S. MOROOKA, Z. YANG,
R. -S. VARANASI, T. HOJO, T. KAWASAKI and S. HARJO
Hierarchical Deformation Heterogeneity during
Lüders Band Propagation in an Fe-5Mn-0.1C
Medium Mn Steel Clarified through in Situ ScanningElectron Microscopy
ISIJ international, online (2022).

J. XIN, D. WU, C. SHEN, L. WANG, X. HUA, N. MA,
S. TASHIRO and M. TANAKA
Multi-physical Modelling of Alloy Element
Transportation in Wire Arc Additive Manufacturingof a Γ-TiAl Alloy
Int. J. Therm. Sci., 179, 107641 (2022), 1-8.
S. WU, N. MA, S. RASHED, Y. MATSUOKA, F. LU and
K. MIYAMOTO
A Position-Adjustable Universal Backing Plate to
Improve Geometric Accuracy in Incremental Sheet
FormingInt. J. Adv. Manuf. Technol., 121, 8 (2022),
8143-8158.

S. HARJO, W. GONG, T. KAWASAKI, S. MOROOKA and
T. YAMASHITA
Revisit Deformation Behavior of Lath Martensite.
ISIJ international, online (2022).
K. TAKADA, S. NISHI, N. SHIMIZU and N. MA
Application of Isogeometric Analysis to Vehicle
Body Structure
JSAE, 74, 4 (2022), 110-116 (in Japanese).

W. HUANG, Q. WANG, N. MA and H. KITANO
Investigation of Residual Stress Distribution Pattern
in Typical Wall and Pipe Components Built by Wire
Arc Additive Manufacturing
J. Manufacturing Processes, 82 (2022), 434-447.

N. MA, P. GENG and Y. MA
Thermal-mechanical Simulation of Friction Assisted
Solid-State Joining Processes
Plastos, 5, 51 (2022), 143-147 (in Japanese).

N. MA, Q. WANG, S. TOMITAKA, M. TAKAHASHI, K. MIMURA,
K. HARA and X. LUO
Ultra-high Strain Rate Dependent Material
Modeling and Experimental Observation for Studyof Cold Spray Induced Extreme Plastic Deformationin Pure Nickel Particles
J. Jpn. Soc. Technol. Plasticity, 63, 740 (2022),
121-126 (in Japanese).

T. CHU, C. SHAO, Y. WANG, N. MA and F. LU
Crack Branching Behavior and Amorphous Film
Formation Mechanism during SCC Expanding Test
for Multi-Layers Weld Metal of NiCrMoV Steels
Mater. Des., 216, 110520 (2022), 1-11.
J. PARK, G. AN, N. MA and S. KIM
Effect of Transverse Restraint on Welding ResidualStress in V-groove Butt Welding
Metals, 12, 654 (2022), 1-19.

J. WANG, Y. CHEN, L. ZUO, H. ZHAO and N. MA
Evaluation of Thermal Fatigue Life and Crack
Morphology in Brake Disc of Low Alloy Steel for
High-Speed Trains
Materials, 6737 (2022), 1-15.

Y. LIU, Y. YU, P. WANG, H. FANG and N. MA
Analysis and Mitigation of the Bending Deformationin Girth-Welded Slender Pipes with Numerical
Modelling and Experimental Measurement
J. Manufacturing Processes, 78 (2022), 278-287.

K. OKADA and N. MA
A Study of Fatigue Life and Weld Metal Toughnessof LTT Elongated Bead
Prod. And Technol., 74, 4 (2022), 5-10 (inJapanese).

T. WU, Y. MA, H. XIA, T. NIENDORF and N. MA
Measurement and Simulation of Residual Stresses in
Laser Welded CFRP/steel Lap Joints
Compos. Struct., 292, 115687 (2022), 1-15.

N. MA, K. HIRAOKA and H. MURAKAWALTT Elongated Bead Method for Fatigue Life
Extension
through
ReductionofStressConcentration and Generation of Compressive
Welding Residual Stress
Prod. And Technol., 74, 4 (2022), 19-24 (inJapanese).

B. YANG, D. LIN, H. XIA, H. LI, P. WANG, J. JIAO, X. CHEN,
C. TAN, L. LI, Q. WANG and N. MA
Welding Characterization Evolutions for Dual Spot
Laser Welded-Brazed Al/steel Joint with Various
Spot Configurations
J. Mater. Res. Technol-JMRT, 19 (2022), 697-708.

34

R. AKITA, N. MA and Y. ABE
Strength Evaluation of Adhesive and Clinching
Joints of High Strength Steel and Aluminum Alloys
Weld. Technol., 2022, 9 (2022), 1-5 (in Japanese).

P. GENG, Y. MA, N. MA, H. MA, Y. AOKI, H. LIU, H. FUJII and
C. CHEN
Effects of Rotation Tool-Induced Heat and Material
Flow Behaviour on Friction Stir Lapped Al/steel Joint
Formation and Resultant MicrostructureInt. J. Machine Tools and Manufacture, 174 (2022),
103858.

H. -B. XIA, L. LI, C. TAN, J. YANG, H. LI, W. SONG,
K. ZHANG, Q. WANG and N. MA
In Situ SEM Study on Tensile Fractured Behavior of
Al/steel Laser Welding Brazing Interface
Mater. Des., 224, 111320 (2022), 1-11.

S. WU, P. GENG, N. MA and F. LU
Contact-induced Vibration Tool in Incremental
Sheet Forming for Formability Improvement of
Aluminum Sheets
J. Mater. Res. Technol-JMRT, 17 (2022), 1363-1379.

Z. FENG, N. MA, K. HIRAOKA, Y. KOMIZO, S. KANO and
M. NAGAMI
Development of 16Cr8Ni Low Transformation
Temperature Welding Material for Optimal
Characteristics under Various Dilutions Due to All
Repair Welding Positions
Sci. Technol. Weld. Joining, 2158282 (2022), 1-9.

P. GENG, M. MORIMURA, H. MA, Y. MA, N. MA, H. LIU,
Y. AOKI and H. FUJII
Elucidation of Intermetallic Compounds andMechanical Properties of Dissimilar Friction Stir Lap
Welded 5052 Al Alloy and DP590 SteelJ. Alloy. Compd, 906, 164381 (2022), 1-17.

S. FUJITA, T. KOZAKI and H. SERIZAWA
Galvanic Corrosion and Its Reliability Evaluation in
Joining Dissimilar Materials
JSFM, 55, Special Issue (2022), 19-26 (in Japanese).

Y. MA, Y. ABE, P. GENG, R. AKITA, N. MA and K. MORI
Adhesive Dynamic Behavior in the Clinch-Bonding
Process of Aluminum Alloy A5052-H34 andAdvanced High-Strength Steel JSC780
J. Mater. Process. Technol., 305, 117602 (2022),
1-15.

H. SERIZAWA
Study on Mechanical Properties of Advanced
Multi-Material Dissimilar Lap Joint
Proc. IIW2022 - Int. Conf. on Welding and Joining,(2022), 567-570.

H. MA, Y. ZHAO, G. QIN and P. GENG
Formation of Nanoscale Reaction Layer with Several
Crystallinities in the Friction-Welded 6061 Al
Alloy/steel Joint
Mater. Des., 219 (2022).

H. MA, G. QIN, Q. ZHAO and P. GENG
Correlationof
HeterogeneousInterface
Microstructure and Mechanical Performance ofInertia Friction Welded 6061 Al Alloy Joint
J. Mater. Res. Technol-JMRT, 17 (2022), 166-183.

P. GENG, M. MORIMURA, N. MA, W. HUANG, W. LI,
K. NARASAKI, T. OGURA, Y. AOKI and H. FUJII
Measurement and Simulation of Thermal-Induced
Residual Stresses within Friction Stir Lapped Al/steel
Plate
J. Mater. Process. Technol., 310, 117760 (2022),
1-15.

H. MA, G. QIN, P. GENG, Z. AO and Y. CHEN
Effect of Intermetallic Compounds on the
Mechanical Property and Corrosion Behaviour of
Aluminium Alloy/steel Hybrid Fusion-Brazed
Welded Structure
J. Manufacturing Processes, 75 (2022), 170-180.

R. WU, P. GENG, M. LI, N. MA and J. CHEN
Interfacial Bonding Behaviours of AA5052/DC05 inSynchronous Thermomechanical Joining-Forming
ProcessJ. Manufacturing Processes, 83 (2022), 787-798.

H. MA, G. QIN, Z. DANG, S. QU, L. CHEN and P. GENG
Interfacial Microstructure Evolution and Mechanical
Properties of Inertia Friction Welded Aluminium
Alloy/stainless Steel Joint with Preheat Treatment
Mater. Sci. Eng. A., 836 (2022), 142671.

35

M. WANG, P. GENG, H. MA and G. QIN
Mechanical Property and Microstructure of
IN718/FGH96 Dissimilar Superalloy Linear Friction
Weldment
Int. Manufacturing Science and Engineering Conf.,
85288 (2022).

H. SHIBATA, K. SATOH, H. HORIKAWA, K. HAMASAKI,
L. BO and S. TSUTSUMI
Proposal of Modified Ens Method Considering
Effective Stress Concentration Factor - Application
to Butt Weld Joints with Backing Plate
J. Jpn. Soc. Civil Eng. Ser. A2, 72, 2 (2022),
I_307-I_317 (in Japanese).

H. MA, P. GENG and G. QIN
Effect of Alloying Elements of Al Alloy on theInterfacial Microstructure and Fracture Behaviour of
Al Alloy/Steel Inertia Friction Welded Joint: A
Comparative Study
Int. Manufacturing Science and Engineering Conf.,
85196 (2022).

S. HAMADA, M. BEPPU, S. TSUTSUMI and H. ICHINO
A Study on the Perforation Failure of Steel Plates
Subjected to a Flat - Nose Projectile Impact
J. Jpn. Soc. Civil Eng. Ser. A2, 72, 2 (2022),
I_359-I_370 (in Japanese).
S. TSUTSUMI, R. FINCATO and A. BUERLIHAN
Numerical Study on Fatigue Notch Sensitivity ofHigh and Middle Strength Carbon Steels for Weld
Structures
J. Jpn. Soc. Civil Eng. Ser. A2, 72, 2 (2022),
I_145-I_153.

H. MA, P. GENG, G. QIN, C. ZHANG, J. ZHOU, W. HUANG and
N. MA
Fine-Sized Multi-Principal Element Layer at the
Weld Interface of Stainless Steel and Medium
Entropy Alloy
Mater. Des., 223, 111255 (2022), 1-13.

Y. LUO, K. QIU, M. HE, R. MA, R. FINCATO and S. TSUTSUMI
Exploration of Fatigue Performance of Slotted CHS
Tube-to-Gusset Plate Connection
Thin-Walled Struct., 173 (2022), 108920.

H. KITANO and Y. MIKAMI
Constructing a Heat Source Parameter Estimation
Model for Heat Conduction Finite Element Analysis
Using Deep Convolutional Neural Network
Mater. Today Commun., 31 (2022), 103387.

Y. SHINTAKU, S. TSUTSUMI and K. TERADAA CDM-like Constitutive Law for Predicting
Degradation of Strength and Ductility of Steel
Subjected to Cyclic Loading
Int. J. Plast., (2022), 103237.

T. OZAWA, T. KAWABATA and Y. MIKAMI
Proposal of New MOTE Methods for Brittle Fracture
Toughness Determination
ISIJ Int., 62, 6 (2022).

K. MORITA, M. MOURI, A. BUERLIHAN, F. RICCARDO and
S. TSUTSUMI
Evaluation of Fatigue Crack Propagation Behavior in
Low Carbon Steel and Their Simulated HAZ and
Fatigue Life Assessment of Non-Load Carrying
Welded Fillet Joint (Assessment of Fatigue
Performance of Welded Joints Considering Cyclic
Elasto-Plasticity Response)
Q. J. Jpn. Weld. Soc., 40, 1 (2022), 27-35 (inJapanese).

T. OZAWA, T. KAWABATA and Y. MIKAMI
Quantitative Evaluation of Fracture Toughness
Deterioration Due to Pre-strain
Eng. Fract. Mech., 272 (2022), 108683.
Y. SHINTAKU, F. NAKAMURA, S. TSUTSUMI and K. TERADAAn Implicit Solution for an Elastic-Plastic Model with
Hardening Rule Depending on Plastic Strain Range
Using a Primal-Dual Interior Point Method
Trans. Japan Soc. Comp. Eng. and Sci., 2022 (2022),
20220001 (in Japanese).

Y. WANG, S. TSUTSUMI, T. KAWAKUBO and H. FUJIIMicrostructure, Mechanical Properties and Fatigue
Behaviors of Linear Friction Welded Weathering
SteelsInt. J. Fatigue, (2022), 106829.

Y. WANG, S. TSUTSUMI, T. KAWAKUBO and H. FUJII
Effects of Phosphorus Content on Fatigue
Performance of Friction Stir Welded Mild Steels
Constr. Build. Mater., 324 (2022), 126682.

36

N. OGUMA, A. NAKAGAWA, Y. NAKAMURA, S. TSUTSUMI and
T. SAKAI
Construction of Probabilistic Model on Interior
Crack Initiation and Growth Behaviors for HighStrength Steels in Very High Cycle Fatigue
Trans. Japan Soc. Mech. Eng., (2022), 22-00021 (inJapanese).

K. TAKENAKA, M. HASHIDA, H. SAKAGAMI, S. MASUNO,
M. KUSABA, S. YAMAGUCHI, S. IWAMORI, Y. SATO and
M. TSUKAMOTO
Uniformity Evaluation of Laser-Induced Periodic
Surface
Structures
Formedby
Two-Color
Double-Pulse Femtosecond Laser IrradiationRev. Sci. Instrum., 93, 9 (2022)

Y. WANG, S. TSUTSUMI, T. KAWAKUBO and H. FUJIIMicrostructure and Mechanical Properties ofFriction Stir Welded High Phosphorus Weathering
Steel
Sci. Technol. Weld. Joining, (2022), 2055290.
S. HAMADA, M. BEPPU, H. ICHINO and S. TSUTSUMIA Study on the Evaluation Model for Perforation
Failure of Steel Plates Subjected to the Impact by a
Flat-Nose Projectile
J. Struct. Eng., 68A (2022), 907-919.
H. XIA, Y. MA, J. SU, C. TAN, L. LI and N. MA
Influence of Heat Input on the Laser Welded
Steel/CFRP Lapped Joints
Compos. Struct., 2022 (2022), 1-13.
S H. XIA, Y. MA, C. CHEN, J. SU, C. ZHANG, C. TAN, L. LI,
P. GENG and N. MA
Influence of Laser Welding Power on Steel/CFRP
Lap Joint Fracture Behaviors
Compos. Struct., 285 (2022), 115247.
N. MA, D. DENG, N. OSAWA, S. RASHED, H. MURAKAWA and
Y. UEDA
Welding Deformation and Residual Stress
Prevention (book)Published by Elsevier, (2022).
[General Welding]
M. TANAKA
Looking Back to 50 Years of JWRI, Osaka University
and Its Future Prospects
J. Japan Welding Soc., 91, 3 (2022), 173-177 (inJapanese).
M. TANAKA
50th Anniversary of JWRI, Osaka University
TECHNO NET, 596 (2022), 12-14 (in Japanese).

37

Joining and Welding Research Institute,
Osaka University, Japan
11-1 Mihogaoka, lbaraki, Osaka 567-0047, Japan
Telephone +81-6(6877)5111
Facsimile +81-6(6879)8689
Web Site

http://www.jwri.osaka-u.ac.jp/