Influence of interfacial structure on the mechanical and thermal properties of CrAlN/ZrN multilayer coatings

被引:39
作者
Chen, Li [1 ,3 ]
Xu, Yu X. [1 ,2 ]
机构
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China
[3] Zhuzhou Cemented Carbide Cutting Tools Co LTD, Zhuzhou 412007, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
CrAlN/ZrN multilayer coating; Bilayer period; Hardness; Thermal stability; Oxidation resistance; TI-AL-N; OXIDATION BEHAVIOR; THIN-FILMS; STABILITY; MICROSTRUCTURE; CRN; GROWTH; (CR;
D O I
10.1016/j.matdes.2016.05.082
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Multilayer architecture based on CrAlN coatings to improve their properties attracts great attention. Here, the structure, mechanical and thermal properties of CrAlN/ZrN multilayer coatings with bilayer periods of similar to 5 and 9 nm are investigated. Decreasing bilayer period of CrAlN/ZrN coating from 9 to 5 nm results in a transformation of interfacial structure between CrAlN and ZrN sublayers from nonepitaxial to local epitaxial interfaces, and thereby has a positive effect on the hardness, adhesion strength, thermal stability and oxidation resistance. Additionally, a layer by layer oxidation behavior of CrAlN/ZrN coatings leads to the formation of lamellar oxide scale. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1 / 5
页数:5
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