Fang Te-Hua, Wang Tong Hong, Wu Jia-Hung
Institute of Mechanical and Electromechanical Engineering, National Formosa University, Yunlin 632, Taiwan.
J Nanosci Nanotechnol. 2010 Jul;10(7):4568-72. doi: 10.1166/jnn.2010.1679.
The effects of interface, contact hardness, deformation, and adhesion of Al/Ni multilayered films under nanoindentation were investigated using molecular dynamics (MD) simulations. The results show that the indentation force of the sphere indenter is the largest among nanoindentations using sphere, cone, Vickers, or Berkovich type indenters at the same penetration depth. Force increasing, relaxation and adhesion took place during loading, holding depth and unloading, respectively. The interface occurred along the {111} (110) slip systems and the maximum width of the glide bands was about 1 nm. The reaction force and plastic energy of the indented films are also discussed.
采用分子动力学（MD）模拟研究了纳米压痕下Al/Ni多层膜的界面、接触硬度、变形和粘附效应。结果表明，在相同穿透深度下，球形压头的压痕力在使用球形、锥形、维氏或贝氏压头的纳米压痕中最大。加载、保持深度和卸载过程中分别发生力增加、松弛和粘附。界面沿{111}（110）滑移系出现，滑移带的最大宽度约为1nm。还讨论了压痕薄膜的反作用力和塑性能量。
