| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
| Presentation Title |
Application of Constant Contact Pressure Nanoindentation on Room Temperature Creep: Reliability and Advantage |
| Author(s) |
Lizhong Lang, Zhiying Liu, Yu Zou |
| On-Site Speaker (Planned) |
Lizhong Lang |
| Abstract Scope |
Creep is a serious concern reducing service life of metallic components. Two prevalent indentation methods, constant strain rate (CSR) and constant load (CL), have been applied to study small-scale creep behavior or strain rate sensitivity. However, CSR is time-consuming low strain rates, and CL shows low repeatability. Here, we modified a newly proposed indentation creep method, constant contact pressure (CCP) method. This method is to control the contact pressure for a time after loaded to a depth. The effectiveness and repeatability of the CCP method have been demonstrated by measuring the indentation creep rate of near-α titanium (Ti) and pure tin (Sn) at room temperature. A segmented creep depth vs. time relation are observed, and these results are compared with creep behavior in bulk counterpart. The new CCP method can also extend to measure creep behaviors of a large range of materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Titanium |