ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Corrosion Resistance of Cu-modified 3Cr Low-alloy Steel in 3.5%NaCl Solution
Qianlin WuZhonghua ZhangYaoheng LiuYameng Qi
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2017 Volume 57 Issue 5 Pages 905-912

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Abstract

The effect of Cu addition on the corrosion behavior of 3Cr steel in 3.5 wt.% NaCl solution was investigated by immersion tests and electrochemical measurements. Cu was selected to partially replace Cr in Cu-modified 3Cr steel. Cu addition can improve corrosion resistance of 3Cr steel at the initial stage, and then the phenomenon gradually weakens with increasing immersion time. The reduced corrosion resistance of 3Cr steel caused by Cr decrease suitably offset by the presence of Cu, resulting a reduced-cost Cu-modified 3Cr steel without sacrificing ether its mechanical properties or corrosion resistance.

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© 2017 by The Iron and Steel Institute of Japan
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