Effect of nickel alloying on crevice corrosion resistance of stainless steels

被引：58
|
作者：
Azuma, S
Kudo, T
Miyuki, H
Yamashita, M
Uchida, H
机构：
[1] Sumitomo Met Technol Inc, Invest & Res Div, Amagasaki, Hyogo 6600891, Japan
[2] Sumitomo Met Technol Inc, Corp Res & Dev Labs, Amagasaki, Hyogo 6600891, Japan
[3] Himeji Inst Technol, Grad Sch Engn, Himeji, Hyogo 6712201, Japan
来源：
CORROSION SCIENCE | 2004年 / 46卷 / 09期
关键词：
stainless steel; polarization; crevice corrosion; passivity;
D O I：
10.1016/j.corsci.2004.01.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crevice corrosion behaviour of stainless steels containing 25 mass% Cr, 3 mass% Mo and various amounts of Ni was investigated in natural seawater. The results showed that ferritic steels containing nickel were more resistant to corrosion than both ferritic steels without nickel and austenitic steels. The superiority of the Ni bearing ferritic steel over the other steels was in close agreement with the depassivation pH of those steels in acidic chloride solutions. The results showed that the addition of Ni to ferritic steel was effective in decreasing the depassivation pH and the dissolution rate in acidic chloride solutions at crevices. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2265 / 2280
页数：16
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