Improving corrosion resistance of CrTiAlN coating by post-deposition treatments

被引：14
作者：
Yang, Q. [1 ]
Cai, F. [2 ]
Zhao, L. R. [1 ]
Huang, X. [2 ]
机构：
[1] Natl Res Council Canada, Inst Aerosp Res, Struct & Mat Performance Lab, Ottawa, ON K1A 0R6, Canada
[2] Carleton Univ, Dept Mech & Aerosp Engn, Ottawa, ON K1S 5B6, Canada
来源：
SURFACE & COATINGS TECHNOLOGY | 2008年 / 203卷 / 5-7期
关键词：
Coating; Defects; Corrosion; Post-deposition treatments;
D O I：
10.1016/j.surfcoat.2008.04.072
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this paper, post-deposition treatments such as thermal oxidation and polymethyl methacrylate sealing were applied to CrTiAlN coated samples to alleviate the detrimental effects of coating defects on the performance against corrosion. As-deposited and post-deposition treated coating specimens were subjected to electrochemical measurements in 3.5% NaCl aqueous solution. Electrochemical impedance technique was used to assess coating degradation as a function of immersion time. The testing results indicate that the post-deposition treatments can markedly improve corrosion resistance of the coating with no obvious degradation being observed for the treated samples during a long term exposure to the saline solution. Crown Copyright (c) 2008 Published by Elsevier B.V. All rights reserved
引用
收藏
页码：606 / 609
页数：4
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