Xudong Ren

TL;DR: In this article, a relatively dense equiatomic FeCrCoMnNi high entropy alloy with excellent mechanical properties is manufactured by LAM successfully and the effect of heat treatment on phase, microstructure, microhardness, residual stress and mechanical properties of as-built (AB) specimens are investigated.

TL;DR: In this article, the effects of laser shock processing on the stress corrosion cracking susceptibility of AZ31B magnesium (Mg) alloy were investigated by using X-ray diffraction technology, and it was observed that with increasing the number of laser impacts, the compressive residual stress near the surface increased.

TL;DR: In this article, the microstructure evolution and grain refinement of Ti-6Al-4V alloy after laser shock processing (LSP) are systematically investigated in a Q-switched Nd:YAG laser system operated with a wave-length of 1064nm and 10ns pulse width.

TL;DR: In this paper, the effects of residual stress on fatigue behavior and crack propagation from LSP-worked hole were performed in a parametric study on residual stress and stress intensity factor to determine their effect on crack growth propagation.

TL;DR: In this article, the microstructure evolution during LSP was investigated via electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) observations, and the micro-hardness distributions on cross-sections and subsurface residual stress states as functions of the laser energy were also determined.