| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8019869 | Materials Letters | 2014 | 4 Pages |
Abstract
The indentation depth dependent micromechanical properties of (Au,Cu)5Sn were investigated using nanoindentation. A correction model was proposed to eliminate the overestimation of the hardness for small indentation around the nano-characteristic depth (hnano) by the Nix-Gao model. The indentation hardness of (Au,Cu)5Sn around hnano is proved to be constant by nanoindentation experiment and our analytic model. Pop-in events of (Au,Cu)5Sn exhibit obvious rate dependent effects: pop-in becomes inconspicuous as the loading rate increases, while the first pop-in load and the maximum shear stress increase with the loading rate. Potential mechanism of the rate dependent pop-in events is analyzed based on our experimental results.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yikai Wang, Wensheng Liu, Yunzhu Ma, Yufeng Huang, Ya Tang, Huiting Luo, Qiang Yu,