Jun-Ping Du

TL;DR: It is found that helium (He) radiation can actually enhance the room-temperature deformability of submicron-sized copper and could open new avenues for making mechanically robust nano- and microstructures by ion beam processing and He bubble engineering.

TL;DR: In this article, the reaction of grain boundaries with lattice dislocations is a key component in hydrogen embrittlement mechanism for polycrystalline metals, and the authors use atomistic modeling methods to investigate the mechanical response of GBs in alpha-iron with various hydrogen concentrations.

TL;DR: In this article, the authors proposed a strategy for overcoming the strength-ductility trade-off in structural metallic materials based on recent findings in ultrafine grained metals, such as unusual slip systems, deformation twinning, martensitic transformation, etc., leading to high strength and large tensile ductility.

TL;DR: In this paper, two different formation paths of nano-twins in a single-crystal FeNiCoCrAl 0.36 HEA were studied, using the density functional theory (DFT) combined with the phonon calculation to estimate the stacking fault energies, temperature-dependent phase stabilities of different structures.