Research on high temperature wear resistance mechanism of CrN/CrAlN multilayer coatings. (February 2023)

• Record Type: Journal Article
• Authors: Wang, Di; Lin, Song-sheng; Lu, Jin-de; Huang, Shu-qi; Yin, Zhi-fu; Yang, Hong-zhi; Bian, Pei-ying; Zhang, Yun-liang; Dai, Ming-jiang; Zhou, Ke-song
• Is Part Of: Tribology international. Volume 180(2023)
• Publication Date: 2023-02
• Subjects: Multilayer coating -- High-temperature wear resistance -- Oxidative wear -- Failure mechanism; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2022.108184
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: In this paper, a 16 µm CrN/CrAlN multilayer coating is prepared on the titanium alloy surface via arc ion plating. Since titanium alloys are susceptible to wear in a high-temperature environment, high-temperature wear performance and mechanism after coating are investigated. The results show that the friction coefficient of the CrN/CrAlN multilayer coating decreases with an increase in temperature during wear tests at room temperature, 300 ℃, 500 ℃, and 700 ℃. Moreover, the friction coefficient decreases from 0.9 at room temperature to 0.4 at 700 ℃. The wear rate increases with the temperature, more specifically from 1.32 × 10 −5 mm 3 /(N·m) at room temperature to 6.45 × 10 −5 mm 3 /(N·m) at 700 ℃.