22 research outputs found
Influence of additives of aluminum, magnesium and calcium on synthesis and sintering of lanthanum chromite
Laser shock processing: modeling of evaporation and pressure field developed in the laser-produced cavity
EBSD analysis of plastic deformation of copper foils by flexible pad laser shock forming
Impacts of Multiple Laser Shock Processing on Microstructure and Mechanical Property of High-Carbon Steel
Multiple laser shock processing (LSP) impacts on microstructures and mechanical properties were investigated through morphological determinations and hardness testing. Microscopic results show that without equal channel angular pressing (ECAP), the LSP-treated lamellar pearlite was transferred to irregular ferrite matrix and incompletely broken cementite particles. With ECAP, LSP leads to refinements of the equiaxed ferrite grain in ultrafine-grained microduplex structure from 400 to 150 nm, and the completely spheroidized cementite particles from 150 to 100 nm. Consequentially, enhancements of mechanical properties were found in strength, microhardness and elongations of samples consisting of lamellar pearlite and ultrafine-grained microduplex structure. After LSP, a mixture of quasi-cleavage and ductile fracture was formed, different from the typical quasi-cleavage fracture from the original lamellar pearlite and the ductile fracture of the microduplex structure