About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Theory and Design of Metallic Glasses
|
| Presentation Title |
Room Temperature Mechanical Creep in CuZrAl BMG |
| Author(s) |
Wojciech Dmowski, Chengyun Hua, Yuya Shinohara, Fernando Igoa |
| On-Site Speaker (Planned) |
Wojciech Dmowski |
| Abstract Scope |
We performed experimental observation of stress induced creep in Cu50Zr40Al10 samples. BMG bars were embedded into a steel ring in 2014 (about 10 years ago). Samples were subjected to bending stresses at about 70% of yield stress. Because these BMGs have high glass transition temperature (~ 710 K) standard loading and unloading at RT in the elastic regime does not produce any observable changes in sample dimensions and properties like acoustic wave frequency. However, we found that after 10 years of ageing under stress at RT, removed samples exhibited obvious permanent deformation. We carried high energy X-ray diffraction on these samples and compared to high temperature creep in the same bending conditions and to axial stresses. We obtained pair distribution function and discus structure of frozen in anelasticity observed at RT to the high temperature.
Supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Science and Engineering Division. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, |