| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5457569 | Intermetallics | 2017 | 9 Pages |
Abstract
Enhancement of glass-forming ability (GFA) and surface properties are important for the application of Zr-based bulk metallic glasses (BMGs), and surface oxidation is an effective strategy for surface strengthening. In this paper, the effects of rare earth element Lu addition on GFA and oxidation properties of a Zr50Ti2Cu38Al10 bulk metallic glass were studied. The tribological properties of Lu-free and Lu-doping BMGs before and after oxidation were also investigated. It is found that 2Â at.% Lu addition in this alloy significantly enhance the critical diameter (dc) from 5Â mm to 20Â mm. The oxidation rate of 2Â at.% Lu-doping alloy is higher than Lu-free alloy, indicating that the addition of Lu facilitates the formation of oxidized scale on the surface of Zr50Ti2Cu38Al10 alloy. Moreover, surface oxidation treatment remarkably improves the wear resistance of Zr50Ti2Cu38Al10 and (Zr0.5Ti0.02Cu0.38Al0.1)98Lu2. This study is beneficial for the improvement of surface properties and further application of Zr-based BMGs.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Kun Zhou, Chen Chen, Ying Liu, Shujie Pang, Nengbin Hua, Wei Yang, Tao Zhang,