Laser Shock Processing of FCC Metals [electronic resource] : Mechanical Properties and Micro-structural Strengthening Mechanism /
Zhang, Yongkang.author.
Lu, Jinzhong.author.
Luo, Kaiyu.author.
Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys. During LSP, the generated shock wave can introduce a deep compressive residual stress into the material, due to its high-pressure (GPa-TPa), ultra-fast (several tens nanoseconds), ultra-high strain-rate and high-energy. The overall properties and behavior of metal materials subjected to LSP were significantly improved because a refined surface layer was successfully obtained. Nevertheless, up to now, a clear scenery between micro-structure and macro-property of the refined surface layer, especially formation of sub-micrometer grains from coarse grains during severe plastic deformation, is still pending. Therefore, the basic studies of the underlying mechanism for grain refinement by ultra-high strain-rate presented in this book becomes more and more crucial.
Description based upon print version of record.
Includes bibliographical references and index.
Surface integrity of LY2 aluminum alloy subjected to laser shock processing -- Tensile properties and fatigue life of LY2 aluminum alloy by laser shock processing -- Grain refinement of the alloys with high stacking fault energy (SFE) induced by ultra-high plastic strain during multiple laser shock processing impacts -- Mechanical properties of ANSI 304 stainless steel subjected to laser shock processing -- Stress corrosion cracking (SCC) resistance of ANSI 304 austenitic stainless steel subjected to laser shock processing -- Grain refinement of the alloys with low stacking fault energy (SFE) induced by ultra-high plastic strain during multiple laser shock processing impacts -- Grain refinement of the alloys with medium stacking fault energy (SFE) induced by ultra-high plastic strain during multiple laser shock processing impacts.
Laser shock processing (LSP) is a new and promising surface treatment technique for improving the fatigue durability, corrosion, wear resistance and other mechanical properties of metals and alloys. During LSP, the generated shock wave can introduce a deep compressive residual stress into the material, due to its high-pressure (GPa-TPa), ultra-fast (several tens nanoseconds), ultra-high strain-rate and high-energy. The overall properties and behavior of metal materials subjected to LSP were significantly improved because a refined surface layer was successfully obtained. Nevertheless, up to now, a clear scenery between micro-structure and macro-property of the refined surface layer, especially formation of sub-micrometer grains from coarse grains during severe plastic deformation, is still pending. Therefore, the basic studies of the underlying mechanism for grain refinement by ultra-high strain-rate presented in this book becomes more and more crucial.
Metals.
Manufactures.
Physics.
Metallic Materials.
Manufacturing, Machines, Tools, Processes.
Applied and Technical Physics.