High-temperature Oxidation and Tribological Behavior of AlTiYN Coatings by Arc Ion Plating

被引:1
|
作者
Mo Jin-jun [1 ]
Wu Zheng-tao [1 ]
Gao Ze-cui [1 ]
Wang Qi-min [1 ]
机构
[1] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
arc ion plating; AlTiN; AlTiYN; high-temperature oxidation; high-temperature tribological behavior;
D O I
10.11933/j.issn.1007-9289.20180321003
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
To investigate the influence of 0.76% Y addition on microstructure and high temperature properties of the AlTiN coatings, the AlTiN and AlTiYN coatings were deposited on cemented carbide (YG3X) by arc ion plating. The microstructure, mechanical properties, oxidation and wear resistance of the coatings were analyzed by SEM, XRD, nano-indentation, scratch test, annealing and high-temperature tribometer, respectively. The results show that the addition of Y element refines the grain and improves the compactness of the coating. The coating hardness, toughness and adhesion strength increase due to the addition of Y. When the AlTiN coating is completely oxidized at 900 degrees C for 2 h in air, the AlTiYN has an oxide layer of 1.1 mu m. Hence, it shows a better oxidation resistance than that of the Y free AlTiN coating. Additionally, the friction coefficient and wear rate of the AlTiYN coating at 900 degrees C are lower than that of the AlTiN coating, which indicates that adding Y element can effectively enhance the high-temperature wear resistance of the coating.
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页码:104 / 112
页数:9
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