Structure and wear resistance of TiN and TiAlN coatings on AZ91 alloy deposited by multi-arc ion plating

被引：0
|
作者：
Zhao Hui [1 ]
Wang Xiao-hui [1 ]
Liu Qiu-lei [1 ]
Chen Li-jia [2 ]
Liu Zheng [2 ]
机构：
[1] Shenyang Ligong Univ, Coll Mat Sci & Engn, Shenyang 110168, Peoples R China
[2] Shenyang Univ Technol, Coll Mat Sci & Engn, Shenyang 110023, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷
关键词：
AZ91 magnesium alloy; TiN coating; TiAlN coating; multi-arc ion plating; microstructure; hardness; wear resistance; CORROSION BEHAVIOR; MAGNESIUM;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
In order to investigate the microstructure of TiN and TiAlN coatings and their effect on the wear resistance of Mg alloy, TiN and TiAlN coatings were deposited on AZ91 magnesium alloy by multi-arc ion plating technology. TiN and Ti70Al30N coatings were prepared on the substrate, respectively, which exhibited dark golden color and compact microstructure. The microstructures of TiN and Ti70Al30N coatings were investigated by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The micro-hardness and wear resistance of TiN and Ti70Al30N coatings were investigated in comparison with the uncoated AZ91 alloy. The XRD peaks assigned to TiN and TiAlN phases are found. The hardness of TiN coatings is two times as high as that of AZ91 alloy, and Ti70Al30N coating exhibits the highest hardness. The wear resistance of the hard coatings increases obviously as result of their high hardness.
引用
收藏
页码：S679 / S682
页数：4
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