156 citations · 167 across the 3 of their papers we have counts for
3 papers
Negative Strain-Rate Sensitivity in Metallic Glasses Driven by Rejuvenation-Relaxation Competition: Kinetic Monte Carlo Simulations and a Minimal Effective Model
Tomoaki Niiyama, Akio Ishii, Takahiro Hatano +2
When strain-rate sensitivity (SRS) is negative in metallic glasses, the material becomes weaker as the deformation rate increases, leading to accelerated plastic deformation and, e…
Restructuring in bimetallic core-shell nanoparticles: Real time observation
Nobutomo Nakamura, Koji Matsuura, Akio Ishii +1
The formation process of core-shell bimetallic nanoparticles synthesized by sputtering onto a substrate is observed in real time using an originally developed acoustic technique. T…
Hydrogen embrittlement controlled by reaction of dislocation with grain boundary in alpha-iron
Liang Wan, Wen Tong Geng, Akio Ishii +4
Hydrogen atoms absorbed by metals in the hydrogen-containing environments can lead to the premature fracture of the metal components used in load-bearing conditions. Since metals u…