Corrosion behaviour of superplastic Zn-Al alloys in simulated acid rain

被引:51
|
作者
Yang, Lijing [1 ]
Zhang, Yangming [1 ]
Zeng, Xuduo [1 ]
Song, Zhenlun [1 ]
机构
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
关键词
Zinc; Weight loss; XPS; Pitting corrosion; Kinetic parameters; ATMOSPHERIC CORROSION; ZINC; RESISTANCE; MICROSTRUCTURE; PROTECTION; COATINGS; STEEL; NACL;
D O I
10.1016/j.corsci.2012.03.013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The influence of aluminium content on the corrosion behaviour of superplastic Zinc-Aluminium alloys immersed in simulated acid rain was investigated. ZA4, ZA8, ZA12, and ZA16 alloys were used for the test. The Al-rich phase was prone to preferential attack when the superplastic Zn-Al alloy was immersed for 5 d. However, with increasing ratios of the Al phase, the corrosion rates of the four samples decreased in the order ZA4 > ZA8 > ZA12 > ZA16. The corrosion rate of the alloy decreased with increasing Al content, which may be related to the distribution of the Al-rich phase. Corrosion kinetic parameters were also calculated. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:229 / 237
页数:9
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