The Corrosion Behavior of 17-4 Stainless Steel in a Stainless Steel-Carbon Steel Galvanic Couple

被引：6
|
作者：
Chen, Longjun [1 ]
Hu, Junying [1 ]
Zhong, Xiankang [1 ]
Yu, Siyu [1 ]
Zhang, Zhi [1 ]
Zeng, Dezhi [1 ]
Shi, Taihe [1 ]
机构：
[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Coll Petr Engn, Chengdu 610500, Sichuan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Galvanic corrosion; Stainless steel; Carbon steel; Electrochemical measurement; PASSIVE FILM; ELECTROCHEMICAL MIGRATION; ENVIRONMENT; IRON; LAYER; JOINT;
D O I：
10.20964/2017.10.40
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this work, the corrosion behavior of 17-4 stainless steel in a stainless steel (17-4) and carbon steel (C110) galvanic couple was investigated using electrochemical methods including open circuit potential, galvanic potential, electrochemical impedance spectroscopy and Mott-Schottky curves. The results show that the corrosion resistance of 17-4 stainless steel decreases, although it is generally considered that stainless steel acting as the cathode in this kind of galvanic couple should be protected. This can be attributed to that the passive film on the 17-4 stainless steel is destabilized by the cathodic polarization in this galvanic couple. Consequently, a decrease in corrosion resistance of 17-4 stainless steel can be found.
引用
收藏
页码：9445 / 9455
页数：11
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