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Tribological characteristics of Ti-based bulk metallic glass via deep cryogenic-cycling treatment

Authors :
Ben D. Beake
Haifeng Wang
Qian Jia
Yin Du
Yue Ren
Qing Zhou
Xian-Zong Wang
Feng Zhou
Xiaoxing Zhao
Source :
Materials Characterization. 179:111356
Publication Year :
2021
Publisher :
Elsevier BV, 2021.

Abstract

The wear resistance of Ti45Zr16Cu10Ni9Be20 bulk metallic glass with a deep cryogenic-cycling treatment (DCT) was studied here. The specimens showed increased plasticity and decreased hardness after DCT. The higher wear resistance could be achieved by sacrificing partial hardness in macroscopic wear tests. Morphological observation revealed that the wear mechanism changed from severe fatigue wear to mild ductile ploughing, and the oxidation wear played a mild role. Nano-scratch tests were applied to explore the adhesion and ploughing contributions under the ramping-constant load mode. The competition between the lower hardness and the higher elastic recovery results in the lower friction coefficient. Therefore, DCT has great potential in the application of designing wear-resistant BMGs.

Details

ISSN :
10445803
Volume :
179
Database :
OpenAIRE
Journal :
Materials Characterization
Accession number :
edsair.doi...........24eec9fce2f460e9d0cb8501c0a7628d
Full Text :
https://doi.org/10.1016/j.matchar.2021.111356