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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.

Laser shock processing. --- Lasers -- Congresses. --- Quantum electronics -- Congresses. --- Chemical & Materials Engineering --- Engineering & Applied Sciences --- Materials Science --- Laser peening. --- Metallurgy --- Laser use in. --- Laser shock peening --- Laser shock processing --- LSP (Laser shock peening) --- Shock peening, Laser --- Shock processing, Laser --- Materials. --- Structural control (Engineering). --- Metallic Materials. --- Operating Procedures, Materials Treatment. --- Applied and Technical Physics. --- Lasers --- Metals --- Peening (Metal-work) --- Effect of lasers on --- Laser use in --- Manufactures. --- Manufacturing, Machines, Tools, Processes. --- Manufactured goods --- Manufactured products --- Products --- Products, Manufactured --- Commercial products --- Manufacturing industries --- Engineering --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Materials --- Metals. --- Physics. --- Natural philosophy --- Philosophy, Natural --- Physical sciences --- Dynamics --- Metallic elements --- Chemical elements --- Ores