Temperature effect on nanotwinned Ni under nanoindentation using molecular dynamic simulation
Xi 茜 He 何,
Ziyi 子翼 Xu 徐,
Yushan 玉山 Ni 倪
Abstract:The temperature effect on atomic deformation of nanotwinned Ni (nt-Ni) under localized nanoindentation is investigated in comparison with nanocrystalline Ni (nc-Ni) through molecular simulation. The nt-Ni exhibits enhanced critical load and hardness compared to nc-Ni, where perfect, stair-rod and Shockley dislocations are activated at (1$\mathop 1\limits^ -$1), ($\mathop 1\limits^ -$11) and (11$\mathop 1\limits^ -$) slip planes in nt-Ni compared to only Shockley dislocation nucleation at (1$\mathop 1\limits^ -… Show more
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