Corrosion Behaviour of TiN and CrN Coatings Produced by Magnetron Sputtering Process on Aluminium Alloy

被引：13
|
作者：
Suo, Xiaona [1 ]
Guo, Chun [1 ]
Kong, Decheng [2 ]
Wang, Li [2 ]
机构：
[1] China Shipbldg Ind Corp, 704 Res Inst, Shanghai 200031, Peoples R China
[2] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2019年 / 14卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Aluminum alloy; TiN; ZrN; Magnetron sputtering; Corrosion; DUPLEX STAINLESS-STEEL; ELECTROCHEMICAL-BEHAVIOR; FILM;
D O I：
10.20964/2019.01.81
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this study, the corrosion properties of TiN and CrN coatings on aluminium alloy fabricated by magnetron sputtering were studied by using electrochemical techniques such as potentiodynamic measurement and salt spray tests. Results showed that CrN coatings exhibited a better corrosion resistance on aluminium alloy when compared to TiN coatings with the same thickness. The inferior corrosion performance of TiN coating is not a result of the intrinsic corrosion behaviour of the nitride coating itself but is a result of small structural defects, e.g., pinholes and cracks formed during deposition, which act as channels for the corrosion of the substrate.
引用
收藏
页码：826 / 837
页数：12
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