Theoretical and experimental study of galvanic coupling effects between carbon steel and stainless steels

被引：13

作者：

Qian, S. ^{[1
]}

Qu, D. ^{[2
]}

机构：

[1] Natl Res Council Canada, Inst Res Construct, Ottawa, ON K1A 0R6, Canada

[2] Korea Univ Sejong, Coll Sci & Technol, Dept Adv Mat Chem, Chungnam 339700, South Korea

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2010年 / 40卷 / 02期

关键词：

Corrosion; Galvanic coupling; Reinforcing steel; Chlorides; Carbon steel; Stainless steel; CONCRETE;

D O I：

10.1007/s10800-009-9998-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The use of stainless steel in high corrosion risk areas represents a viable option for reducing the life-cycle cost and extending the service life of concrete structures. However, the possible galvanic corrosion between it and carbon steel continues to be a concern. In this article, the galvanic coupling behaviours of carbon steel and three different stainless steels were investigated in simulated pore solutions and concrete specimens. The results showed that the oxygen reduction reaction was much lower on stainless steel than on passive carbon steel, leading to a lower galvanic coupling current between stainless steel and corroding carbon steel than that between passive and corroding carbon steels. However, rust contamination of stainless steel was found to increase galvanic coupling corrosion on carbon steel.

引用

页码：247 / 256

页数：10

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