bluuebunny/crossref_metadata_2025_split huggingface dataset:
Demonstration of Thick-Section Welding of Haynes 282 to Steel
Authors: Srinivasan Shankar , Bruck Gerald , Mohan Arun 
Published: October 2024

Abstract
This study addresses the welding challenges encountered when joining Haynes 282, a heat-resistant superalloy, to 3.5NiCrMoV high-strength low alloy steel (HSLA) for advanced power plant applications, particularly in thick-section components like rotors. The project demonstrated successful thick-section dissimilar metal welding up to 76 mm (3 in.) using two techniques: keyhole tungsten inert gas welding and conventional gas tungsten arc welding with Haynes 282 filler metal. Various groove weld geometries were evaluated, supported by computational weld modeling to predict and minimize weld distortion. The results validate these welding approaches for critical power plant components requiring both high-temperature performance and cost-effectiveness.
Industrial Application of Local Vacuum Electron Beam Welding for Nuclear Reactor Components
Authors: Pope Jacob , Blackmore Michael , Talamantes-Silva Jesus 
Published: October 2024

Abstract
Local vacuum electron beam welding is an advanced manufacturing technology which has been investigated at Sheffield Forgemasters to develop as part of a cost-effective, reliable, agile, and robust manufacturing route for the next generation of civil nuclear reactors in the UK. A dedicated electron beam welding facility at Sheffield Forgemasters has been installed. This includes an x-ray enclosure, 100kW diode electron gun, 100T turntable, and weld parameter development vacuum chamber. A small modular reactor demonstrator vessel has successfully been manufactured with a wall thickness of 180 mm, including indication-free slope-in, steady- state and slope-out welding parameters. Electroslag strip cladding has also been investigated to demonstrate its viability in reactor pressure vessel manufacture. The electro-slag strip cladding method has been shown to produce high quality 60 mm strips on a 2600 mm inner diameter ring.
Tensile Testing in High Pressure Gaseous Hydrogen Using the Tubular Specimen Method
Authors: Elsen-Humberg Stephan , Unterumsberger Fabian , Freitas Tomas , Oesterlin Heiner , Ruchti Peter 
Published: October 2024

Abstract
The efforts of the European Union and Germany in particular to realize the transformation towards a climate-neutral economy over the coming decades have the establishing of a hydrogen economy as a fundamental milestone. This includes production, import, storage, transportation and utilization of great amounts of gaseous hydrogen in existing and new infrastructure. Metallic materials, mainly steels, are the most widely used structural materials in the various components of this supply chain. Therefore, the accelerated use of hydrogen requires the qualification of materials (i.e., ensuring they are hydrogen-ready) to guarantee the sustainable and safe implementation of hydrogen technologies. However, there is currently no easily applicable and standardized method to efficiently determine the impact of gaseous hydrogen on metallic materials. The few existing standards describe procedures that are complex, expensive, and only available to a limited extent globally. This article outlines the key milestones towards standardizing an efficient testing method as part of the TransHyDE flagship project. This new approach enables testing of metallic materials in gaseous hydrogen using tubular specimens. It uses only a fraction of the hydrogen required by the traditional autoclave method, significantly reducing costs associated with technical safety measures. Among the topics to be discussed are the factors influencing the test procedure, including geometrical considerations, surface quality, gas purity and strain rate.
Microstructural and Mechanical Evolution of High Temperature Proton Irradiated FeCrMnNi Concentrated Solid-Solution Alloy
Authors: Wang Qiang , Dai Cong , Skippon Travis , Fluke Amy , Yuan Hui , Long Fei , Daymond Mark R. 
Published: October 2024

Abstract
A FeCrMnNi concentrated solid-solution alloy was irradiated with a 2 MeV proton beam up to 1 dpa and 6 dpa at temperatures of 400 °C and 600 °C. The microstructural changes induced by irradiation were characterized using Transmission Electron Microscopy (TEM). In samples irradiated at 400 °C, Frank loops were the predominant form of lattice damage at 1 dpa, whereas small defect clusters were more prevalent at 6 dpa. For the sample irradiated to 1 dpa at 600 °C, both Frank loops and small defect clusters were present in similar density. Nanoindentation was employed to assess the changes in mechanical properties (hardness) post-irradiation, revealing significant hardening in all irradiated samples. The results indicated that the hardening effect began to saturate at 1 dpa or earlier. Additionally, nanoindentation creep tests with a 1200-second dwell period produced stress exponents comparable to those obtained from conventional creep testing. The findings suggest a shift in the deformation mechanism from dislocation glide to dislocation climb in the sample irradiated to 6 dpa at 400 °C.
The Effect of Post Weld Heat Treatment on the Microstructure and Creep Damage Susceptibility in Grade 92 Steel
Authors: West G. D. , Moore T. , Strangwood M. , Siefert J. A. 
Published: October 2024

Abstract
Creep strength enhanced ferritic (CSEF) steels have shown the potential for creep failure in the weld metal, heat affected zone (HAZ) or fusion line. Details for this behavior have been frequently linked to metallurgical risk factors present in each of these locations which may drive the evolution of damage and subsequent failure. This work is focused on three weld samples fabricated from a commercially sourced Grade 92 steel pipe section. These weld samples were extracted from the same welded section but were reported to exhibit failure in different time frames and failure locations (i.e., HAZ of parent, fusion-line, and weld metal). The only variables that contribute to this observed behavior are the post weld heat treatment (PWHT) cycle and the applied stress (all tests performed at 650 °C). In this work detailed microstructural analysis was undertaken to precisely define the locations of creep damage accumulation and relate them to microstructural features. As part of this an automated inclusion mapping process was developed to quantify the characteristics of the BN particles and other inclusions in the parent material of the samples. It was found that BN particles were only found in the sample that had been subjected to the subcritical PWHT, not those that had received a re-normalizing heat treatment. Such micron sized inclusions are a known potential nucleation site for creep cavities, and this is consistent with the observed failure location in the HAZ of the parent in the sample where these were present. In the absence of BN inclusions, the next most susceptible region to creep cavitation is the weld metal. This has an intrinsically high density of sub-micron sized spherical weld inclusions and this is where most of the creep damage was located, in all the renormalized samples.
Effect of Grain-Boundary TCP P(oP56) Phase on Creep in Ni-Cr-Mo Alloys at Elevated Temperatures
Authors: Yanagiya Takehiko , Yoshida Masato , Hashi Kunihiko , Nagashima Ryota , Takeyama Masao 
Published: October 2024

Abstract
This study investigates the role of grain-boundary precipitates in enhancing creep rupture strength of Ni-based alloys through analysis of Ni-15Cr-15Mo and Ni-15Cr-17Mo (at.%) model alloys. The investigation focused on the “Grain-boundary Precipitation Strengthening (GBPS)” effect from the thermally stable TCP phase, a phenomenon previously observed in Fe-Cr-Ni-Nb austenitic heat-resistant steels. Through multi-step heat treatments, specimens were prepared with varying grain boundary coverage ratios (ρ) of TCP P phase (oP56) and consistent grain-interior hardness from GCP Ni2(Cr, Mo) phase (oP6). In the 15 at.% Mo alloy, specimens with a higher coverage ratio (~80%) demonstrated significantly improved creep performance, achieving nearly four times longer rupture time (3793 h vs. 1090 h) at 300 MPa and 973 K compared to specimens with lower coverage (~35%). However, the 17 at.% Mo alloy showed unexpectedly lower performance despite high coverage ratios, attributed to preferential cavity formation at bare grain boundaries. These findings confirm that GBPS via thermally stable TCP phase effectively enhances creep properties in Ni-based alloys, with grain boundary coverage ratio being more crucial than intragranular precipitation density.
Creep Deformation and Rupture Properties of Long-Term Used Super 304H Steel Boiler Tubes
Authors: Zhang Shengde , Tokunaga Hayato , Kako Kenji , Yaguchi Masatsugu , Tamura Koji , Minami Yusuke 
Published: October 2024

Abstract
Creep deformation and rupture properties of several long-term used Super 304H steel boiler tubes were presented in this paper. The aged superheater tubes that have been in service for about 140,000 hours at the approximate metal temperature ranged from 550°C to 640°C, were investigated. Creep tests were conducted at 650°C and 700°C using standard and miniature specimens taken from the axial and circumferential directions of tubes, and effects of specimen size, sampling direction and position on creep properties were discussed. Creep deformation of long-term used materials with significant microstructural evolution accelerated earlier than that of virgin material, and the time to creep rupture and the fracture ductility were also smaller. The degradation of rupture properties of the long-term used material was discussed in relation with microstructural evolution. In addition, there was little effects of specimen size and sampling direction on creep deformation and rupture time, whereas the time to creep rupture changed significantly due to the sampling position.
An Engineering Approach for Weld Creep Lifetime Assessment Based on Local Property Measurement
Authors: Zhanga Wei , Wanga Yiyu , Wanga Yanli , Fenga Zhili , Siefertb John , Bridgesb Alex , Kungb Steven 
Published: October 2024

Abstract
The localized creep failure in the heat-affected zone (HAZ) of Grade 91 steel weldments has been identified as one of the most important factors causing significantly shortened service lifetime and structural integrity issues of welded components in advanced fossil and nuclear power plants. To conduct a reliable creep lifetime assessment, a new engineering assessment approach has been developed by incorporating the experimentally determined local properties of the heterogeneous HAZ. By creep testing a purposely simulated HAZ specimen with in situ digital image correlation (DIC) technique, the highly gradient creep properties across the HAZ of Grade 91 steel was quantitatively measured. A physical creep cavitation constitutive model was proposed to investigate the local creep deformation and damage accumulation within the heterogeneous HAZ, which takes into account the nucleation of creep cavities and their growth by both grain boundary diffusion and creep deformation. The relationship among the local material property, creep strain accumulation, and evolution characteristic of creep cavities was established. The approach was then utilized to investigate the creep response and subsequent life for an ex-service 9% Cr steel weldment by incorporating the effects of pre-existing damages which developed and accumulated during long-term services. The predicted results exhibited quantitative agreement with the DIC measurement in terms of both nominal/local creep deformation as well as the subsequent life under the test conditions at 650 and 80 MPa.
Aplikasi Pembelajaran Lagu dan Tari Daerah Indonesia Berbasis Android
Authors: Fathoni Irfan , Agus Suhendi  , Angga Pramadjaya  
Published: October 2024

Saat ini perkembangan smartphone telah mengalami kemajuan yang sangat baik dan terdepan, penggunanya tidak hanya menggunakannya sebagai alat untuk bertukar informasi tapi untuk media pembelajaran. Lagu daerah merupakan lagu yang berasal dan populer di suatu tempat tertentu dan dibawakan baik oleh penduduk daerah tersebut maupun masyarakat lain. Tarian Indonesia dapat memperkenalkan keseneian dan keberagaman suku dan budaya Indonesia. Ada lebih dari 700 kelompok etnis di Indonesia. Karena dengan banyaknya jenis lagu dan tarian daerah yang ada di Indonesia, maka penulis ingin membuat aplikasi pembelajaran lagu dan tarian daerah berbasis android yang ada di Indonesia. Penulis menginginkan dengan adanya media pembelajaran aplikasi ini dapat memudahkan masyarakat umum, ataupun pelajar ataupun akedemik untuk (pengguna smartphone android) terutama yang belajar lagu dan tari daerah dalam memperoleh informasi tentang lagu dan tarian daerah yang ada di Indonesia. Aplikasi pembelajaran tari dan lagu daerah ini akan dapat bekerja dengan lancar denggan menggunakan handphone yang bersistem Android mulai dari versi 4.
Analisis Faktor-Faktor yang Mempengaruhi Produk Domestik Regional Bruto Sektor Pertanian Provinsi Sumatera Barat
Authors: Aprilianita Windy Fortuna , Azriani Zednita , Analia Devi 
Published: October 2024

Nilai PDRB Provinsi Sumatera Barat bisa dipengaruhi oleh sejumlah variabel, termasuk tenaga kerja pertanian, investasi pertanian, ekspor pertanian dan impor pertanian. Tujuan dari penelitian ini adalah untuk menganalisis variabel-variabel yang memengaruhi PDB sektor pertanian di Provinsi Sumatera Barat dan untuk memberikan gambaran tentang penyerapan tenaga kerja, investasi, ekspor, dan impor sektor pertanian. Penelitian ini menggunakan data time series dari BPS Provinsi Sumatera Barat tahun 2015-2023. Jenis penelitian yang digunakan dalam penelitian ini adalah explanatory research dengan pendekatan kuantitatif, uji f dan uji t menggunakan analisis regresi linier berganda dengan SPSS. Hasil penelitian menunjukkan bahwa tenaga kerja pertanian di Provinsi Sumatera Barat mengalami penurunan dari tahun 2016-2017. Sejumlah besar tenaga kerja meninggalkan pekerjaan dan bekerja di pabrik atau jenis bisnis lainnya. Investasi di industri pertanian Provinsi Sumatera Barat mengalami penurunan dari tahun 2015- 2023. Ekspor pertanian Provinsi Sumatera Barat meningkat dengan baik. Hasil pertanian di Sumatera Barat meningkat seiring dengan permintaan konsumen, yang menyebabkan peningkatan ekspor dari industri pertanian. Impor sektor pertanian Provinsi Sumatera Barat akhir-akhir ini mengalami penurunan, karena pasokan lokal mampu memenuhi permintaan, sedangkan impor masyarakat meningkat akibat gagal panen dan bencana alam yang mengakibatkan turunnya hasil pertanian. Variabel tenaga kerja (X1) tidak ada pengaruh terhadap PDRB Pertanian Harga Konstan (Y), Variabel Investasi (X2) ada pengaruh terhadap PDRB Pertanian Harga Konstan (Y), Variabel Ekspor (X3) ada pengaruh terhadap PDRB Pertanian Harga Konstan (Y) dan Variabel Impor (X4) tidak ada pengaruh terhadap Harga Konstan (Y).
Nidā’ Al-Qur’an: A Study of the Manuscript of Tafsīr Yā Ayyuha Al-Lażīna Āmanū by Shaykh Abdul Latief Syakur 20th Century
Authors: Wahidi Ridhoul 
Published: October 2024

The study of the Qur’anic nidā' is important to understand and master and distinguish the khitab to whom the call is addressed and what the meaning or essence of the call is conveyed. The purpose of this study is to explore and find the context of the call (nidā'), khitāb and mukhātab addressed in Tafsīr Yā Ayyuha Al-Lażīna Āmanū. This article theoretically and methodologically has an important role in the study of al-Qur'anic sciences and tafsir. This research is a library research with philological method with philosophical historical approach and analyzed with descriptive analysis model. The findings in this study indicate that there are three contexts addressed in the existence of nidā' verses. First, nidā' verses whose mukhātab clearly refer to individuals. Second, nidā' verses refer to a particular community either in general or in particular. Thirdly, nidā' verses whose mukhātab refers to a particular community either generally or specifically. Of all the nidā' in this tafsir, the khitab nidā' are categorized into five: nidā' related to the relationship between man and God; nidā' related to the relationship between the believing servant and the Prophet Muhammad; nidā' related to the relationship between people and their families; and nidā' related to the relationship between believers and disbelievers and disobedient people.
Kajian nidā’ al-Qur’an penting dilakukan guna memahami dan menguasai serta membedakan khitab kepada siapa seruan itu ditujukan dan apa makna atau esensi seruan tersebut disampaikan. Adapun tujuan penelitian ini untuk menggali dan menemukan konteks seruan (nidā’), khitāb dan mukhātab yang dituju dalam Tafsīr Yā Ayyuha Al-Lażīna Āmanū. Artikel ini secara teoritis dan metodologis memiliki peran penting dalam studi ilmu-ilmu al-Qur’an dan tafsir. Penelitian ini adalah penelitian kepustakaan (Library Reseach) dengan motode filologi dengan pendekatan historis filosofis dan dianalisa dengan model deskriptif-analisis (descriptive analysis). Temuan dalam penelitian ini menunjukkan bahwa ada tiga konteks yang dituju pada eksistensi ayat-ayat nidā’. Pertama, ayat-ayat nidā’ yang mukhātabnya jelas merujuk kepada individu. Kedua, ayat-ayat nidā’ mengacu pada komunitas tertentu baik secara umum atau khusus. Ketiga, ayat-ayat nidā' yang tujuan mukhātabnya masih menimbulkan penafsiran tentang siapa sebenarnya yang dimaksud. Dari keseluruhan nidā' dalam tafsir ini, khitab nidā’nya dikelompokkan menjadi lima, yakni nidā’ yang terkait hubungan antara manusia dan Tuhan; nidā’ yang terkait antara hamba yang beriman dengan Nabi Muhammad; nidā’ yang terkait dengan antara orang dengan keluarga mereka; dan nidā’ yang terkait antara orang beriman dengan orang kafir dan durhaka.
A Comparative Study of the Number of Iqamah in Hadith: Sunni and Shia Perspectives
Authors: Zahri Ahmad Fauzan , Afifah Alvin , Said Imam Ghazali , Khoshyatulloh Arfedin Hamas 
Published: October 2024

This study discusses the number of iqamah phrases contained in the Sunni and Shia perspectives. Iqamah has a purpose as a marker in the implementation of prayer to prepare and close the safes. In practice, there are different variations in the number of numbers in the iqamah sentences. This difference occurs between the Sunni and Shia schools of thought because both have different hadith sources as references in the implementation of the iqamah. The research method used is descriptive comparative with the type of research applied is library research. The main sources of literature in this study are Kutub al-Tis‘ah, Uṣūl al-Kāfī and Furū' al-Kāfī. The results show that there are differences in the tradition of iqamah between the two schools of thought. Iqamah has different origins in the Sunni and Shia schools. According to the Sunnis, the iqamah originated from the dream of ‘Abdullāh ibn Zayd which was later confirmed by the Prophet, and the Shias believe that the iqamah is a revelation delivered from the Angel Gabriel. Then in terms of the number of iqamah numbers, Sunnis have three different variations of the number of iqamah, namely the opinion that says 17 sentences, 11 sentences, and 10 sentences. While the Shia argue that the iqamah has 17 sentences, but the content is different from the Sunni school and there is an additional sentence of Ḥayya ‘Alā Khair al-‘Amal which is different from Sunni.
Abstrak. Penelitian ini membahas mengenai jumlah bilangan frasa iqamah yang terdapat dalam hadis perspektif Sunni dan Syiah. Iqamah memiliki tujuan sebagai penanda dalam pelaksanaan shalat untuk mempersiapkan dan merapatkan shaf. Pada praktiknya, terdapat perbedaan variasi jumlah bilangan dalam kalimat-kalimat iqamah. Perbedaan ini terjadi di antara mazhab Sunni dan Syiah dikarenakan keduanya memiliki sumber hadis yang berbeda sebagai rujukan dalam pelaksanaan iqamah. Metode penelitian yang digunakan adalah deskriptif komparatif dengan jenis penelitian yang diterapkan adalah riset kepustakaan (library research). Sumber literatur utama dalam penelitian ini adalah Kutub al-Tis‘ah, Uṣūl al-Kāfī dan Furū‘ al-Kāfī. Hasil penelitian menunjukkan bahwa adanya perbedaan tradisi iqamah di antara dua mazhab tersebut. Iqamah mempunyai asal-usul yang berbeda di mazhab Sunni dan Syiah. Menurut Sunni, iqamah berasal dari mimpi ‘Abdullāh ibn Zaid yang kemudian dibenarkan oleh Nabi saw., dan Syiah meyakini bawah iqamah adalah wahyu yang disampaikan dari Malaikat Jibril. Kemudian dari segi jumlah bilangan iqamah, Sunni memiliki 3 variasi jumlah iqamah yang berbeda, yaitu pendapat yang mengatakan 17 kalimat, 11 kalimat, dan 10 kalimat. Sedangkan Syiah berpendapat bahwa iqamah memiliki 17 kalimat, namun isinya berbeda dengan mazhab Sunni dan terdapat tambahan kalimat Ḥayya ‘Alā Khair al-‘Amal yang berbeda dengan Sunni.
Efficient Catalytic Hydrocracking of Crude Palm Oil Over EDTA Template-assisted SiO2-Al2O3/NiMo Catalysts
Authors: Fanani Zainal , Asri Wan Ryan , Dwiyanti Betty , Rinaldi Nino , Maryana Roni , Al Muttaqii Muhammad , Riyanti Fahma , Mara Ady , Zainul Rahadian , Hasanudin Hasanudin 
Published: October 2024

The development of hydrocracking catalysts for crude palm oil (CPO) is a challenging process due to its limited textural or pore accessibility and low acidity properties. Therefore, this study aims to develop a series of SiO2-Al2O3-x/NiMo catalysts using different Al mass (x = 5, 10, 25 g) assisted with EDTA to enhance their physicochemical properties. During the procedures, bimetallic NiMo species were dispersed into SiO2-Al2O3-x using the wet impregnation method. The structural, textural, surface morphology, particle size distribution, and acidity properties of the products were then assessed. Catalytic activity of catalysts on hydrocracking of CPO was evaluated at 350 °C for 2 h, H2 gas pressure of 20 bar, and mixed at 1500 rpm. The results showed that increasing Al mass caused an increment in the total acidity, acid site density, and surface area of SiO2-Al2O3-x. In addition, SiO2-Al2O3-25 provided better support properties, allowing preferable NiMo dispersion. Hydrocracking assessment showed that CPO conversion was increased at higher Al mass, producing the highest bio-aviation and biogasoline fractions yield. Based on these results, SiO2-Al2O3-x/NiMo successfully enhanced CPO conversion of unloaded SiO2-Al2O3-x, as well as increased the yield of bio-aviation and biogasoline fractions.
Burgos, B. y López, A. (coord.) Claves e impactos de la cultura en el medio rural. El valor de lo intangible (estudio piloto de 20 proyectos culturales)
Authors: Cueva Erika Chamorro 
Published: October 2024

Reseña del libro Claves e impactos de la cultura en el medio rural. El valor de lo intangible (estudio piloto de 20 proyectos culturales) de Burgos, B. y López, A. (2024).