Molecular dynamics simulations of the size effect of titanium single-crystal nanopillars orientated for double prismatic slips |
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| Authors: | Junqiang Ren Qiaoyan Sun Xiangdong Ding Jun Sun |
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| Affiliation: | State Key Laboratory for Mechanical Behaviour of Materials , Xi’an Jiaotong University , Xi’an , Shaanxi , 710049 , P.R. China |
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| Abstract: | An inverse “smaller is stronger” trend is predicted on the basis of molecular dynamics simulations of α-titanium (Ti) single-crystal nanopillars orientated for double prismatic slips when the nanopillars are less than 7?nm wide. This trend is attributed to a significant increase in the surface energy due to the nucleation and propagation of edge dislocations on the surface of the pillars. |
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| Keywords: | molecular dynamics simulations titanium single-crystal dislocations surface effect |
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