Synergistic corrosion behavior of coated Ti60 alloys with NaCl deposit in moist air at elevated temperature

被引：55
作者：
Xiong, Yuming [1 ]
Zhu, Shenglong [1 ]
Wang, Fuhui [1 ]
机构：
[1] Chinese Acad Sci, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
来源：
CORROSION SCIENCE | 2008年 / 50卷 / 01期
基金：
中国国家自然科学基金;
关键词：
titanium; metal coatings; X-ray diffraction; high temperature corrosion; oxide coatings;
D O I：
10.1016/j.corsci.2007.06.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present paper, the corrosion behavior of Ti60 alloys with an aluminide, TiAlCr, and enamel coatings in moist air containing NaCl vapor at 700-800 degrees C were studied. The results showed that the TiAlCr and aluminide coatings failed to protect the substrate from corrosion due to the cyclic formation of volatile products during corrosion at 800 degrees C. However, an uneven continuous protective Al2O3 scale could form on the aluminide coating during corrosion at 700 degrees C. And the enamel coating could protect Ti60 from corrosion due to its high thermochernical stability and matched thermal expansion coefficient with substrates of Ti-base alloys during corrosion. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：15 / 22
页数：8
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