ELECTROCHEMICAL BEHAVIOR AND SURFACE COMPOSITION OF COPPER CONTAINING FERRITIC STAINLESS STEEL IN SULFURIC ACID SOLUTION.

被引：0
|
作者：
Guo, Jiaju [1 ]
Seo, Masahiro [1 ]
Sato, Yoshitaka [1 ]
Hultquist, Gunnar [1 ]
Leygraf, Christofer [1 ]
Sato, Norio [1 ]
机构：
[1] Hokkaido Univ, Sapporo, Jpn, Hokkaido Univ, Sapporo, Jpn
来源：
Boshoku gijutsu | 1986年 / 35卷 / 05期
关键词：
CORROSION - Electrochemical - IRON AND STEEL METALLOGRAPHY - Ferrite - IRON CHROMIUM COPPER ALLOYS - Corrosion - SULFURIC ACID - Corrosive Properties;
D O I：
10.3323/jcorr1974.35.5_283
中图分类号：
学科分类号：
摘要：
Electrochemical behavior and surface composition of ferritic stainless steels (Fe-26 Cr-0. 4 Cu and Fe-26 Cr) in 1. 0 mol multiplied by (times) dm** minus **3 sulfuric acid solution have been investigated to evaluate the effect of copper-addition on the corrosion resistivity of ferritic stainless steel. The addition of copper suppressed significantly the dissolution current density of the steel in the active potential region. The surface enrichment of metallic copper for the steel subjected to active dissolution was revealed by Auger electron spectroscopy (AES). From the measurements of the potential decay curve after 1 h-passivation and of the reactivation potential by a cathodic potential sweep of the passivated steel, it is found that copper has a detrimental effect on the passivity of ferritic stainless steel.
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页码：283 / 288
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