- High Temperature Oxidation and Wear Behaviors of Ti-V-Cr Fireproof Titanium Alloy
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- 论文类型： 期刊论文
- 发表时间： 2017-06-01
- 发表刊物： METALS
- 收录刊物： SCIE、Scopus
- 卷号： 7
- 期号： 6
- ISSN号： 2075-4701
- 关键字： titanium alloy; fireproof; oxidation; high temperature wear; mechanism
- 摘要： The high temperature oxidation and wear behaviors of Ti-35V-15Cr-0.3Si-0.1C fireproof titanium alloy were examined at 873 and 1073 K. The oxidation weight gain after oxidation at 1073 K for 100 h was significantly larger than that at 873 K. Based on the analyses of the oxidation reaction index and oxide layer, the oxidation process at 1073 K was mainly controlled by oxidation reaction at the interface between the substrate and oxide layer. Dry sliding wear tests were performed on a pin-on-disk tester in air conditions. The friction coefficient was smaller at 1073 K than that at 873 K, while the volume wear rate at 1073 K was larger due to formation of amount of oxides on the worn surface. When the wearing temperature increased from 873 to 1073 K, the wear mechanism underwent a transition from a combination of abrasive wear and oxidative wear to only oxidative wear.
