Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 31, Issue 6, Pages 1758-1765Publisher
ELSEVIER
DOI: 10.1016/S1003-6326(21)65614-5
Keywords
metallic glasses; nanoindentation; loading rate; inhomogeneous creep; shear band
Categories
Funding
- National Key Research and Development Program of China [2016YFB1100103]
- National Natural Science Foundation of China [51771233]
- Key Research and Development Program of Hunan Province, China [2016JC2003]
- China Post-doctoral Science Foundation [2018M633164]
- Fundamental Research Funds for the Central Universities of Central South University, China [2018ZZTS127, CX20190190, 2019ZZTS134]
Ask authors/readers for more resources
The study investigates the creep behavior of BMG at different loading rates, revealing that at low loading rates, serrated flow occurs while at high loading rates, homogeneous flow is observed. The rate-dependent creep behavior is attributed to the number of pre-existing major shear bands significantly influenced by the loading rate.
Creep deformation can be classified as homogeneous flow and inhomogeneous flow in bulk metallic glass (BMG). In order to understand the conversion conditions of the two types of creep deformation, the effect of loading rate on the creep behavior of a Ti40Zr10Cu47Sn3 (at.%) BMG at ambient temperature was investigated using nanoindentation and molecular dynamic simulation. Results indicate that at low loading rates, many serrations appear in loading stage, leading to inhomogeneous serrated flow in the creep stage. When the loading rate is high enough, the creep deformation tends to be homogeneous. The related mechanism responsible for the rate-dependent creep behavior is attributed to the number of pre-existing major shear bands which is influenced significantly by the loading rate.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
