The scratch behaviors of copper bi-layers by a diamond tip: a molecular statics study.
The scratch deformation behaviors of two bicrystal coppers (Cu(100)/Cu(110) and Cu(110)/Cu(100)) during the nanoscratching process were explored and compared with their single crystal ingredients by the molecular statics simulations. The effects of lattice configuration and scratch depth were investigated in this study. The results showed that the motion of dislocations was blocked in the bicrystal interface until the dislocations accumulated enough energy to move. From the study, it was found that the bicrystal interfaces can provide resistance to the motion of dislocations, and can strengthen the mechanical properties of copper materials.
Department of Mechanical Engineering, Minghsin University of Science and Technology, Xinfeng Hsinchu 30401, Taiwan, Republic of China.
Jin-Yuan
JY
Hsieh
Shin-Pon
SP
Ju
Meng-Hsiung
MH
Weng
Hsing-Jung
HJ
Chiang
Jee-Gong
JG
Chang
Jenn-Sen
JS
Lin
Ming-Liang
ML
Liao
Jian-Ming
JM
Lu
Wen-Jay
WJ
Lee