Zhirui Wang

TL;DR: In this article, the possibility of a dislocation mechanism in the deformation process of nanocrystalline materials is reviewed and analyzed, by taking the anisotropic characteristic of crystallographic symmetry and different choices of critical shear strength into account, results in a reasonable limit in grain size for applying dislocation pile-up theory to nanocrystine materials.

TL;DR: In this article, the results of unidirectional tensile tests were discussed with respect to the deviation from the Hall-Petch relationship for nanocrystalline (6-40 nm) nickel produced by an electrodeposition technique.

TL;DR: In this article, the grain growth kinetics of nanocrystalline nickel electrodeposits were studied by transmission electron microscopy and differential scanning calorimetry at different heating rates.

TL;DR: In this paper, the authors studied the effect of the aspect ratio of the reinforcement, particle distribution and grouping behavior-clustering on the nonuniform stress distribution in the material and found that the triaxial stress state around a particle or inside a particle cluster may change the von Mises stress and result in plastic deformation features, such as strain localization.

TL;DR: In this article, the authors employed both transmission and scanning electron microscopy (SEM) to study the SiC/Al-alloy interface in a cast SiCp/Al(A356) metal matrix composite (MMC).