Nanoindentation simulation on single crystal copper by quasi-continuum method

作者：Zhu, Aibin^*; He, Dayong; He, Renjie; Zou, Chao

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2016, 674: 76-81.

DOI：10.1016/j.msea.2016.07.091

• Nanoindentation
• Mechanical characterization
• Interfaces
• Microanalysis

Considering that nanoindentation size effect under very small nano scale could not be effectively investigated by traditional experimental methods, this paper proposed to use quasi-continuum (QC) method to establish a multi-scale simulation model for nanoindentation process on single crystal copper at very small depth, below 20 angstrom. And different-size small indenters were adopted in this paper with their radiuses ranging from 2 nm to 10 nm. The simulation results showed that the contact stiffness did not show indentation size effect, but the values fluctuated on a horizontal line; that the nano-hardness showed obvious indentation size effect.

• 出版日期2016-9-30
• 单位西安交通大学