Corrosion behaviour of 13Cr stainless steel under stress and crevice in 3.5 wt.% NaCl solution

被引：72

作者：

Li, Y. Z. ^{[1
]}

Wang, X. ^{[1
]}

Zhang, G. A. ^{[2
]}

机构：

[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Minist Educ,Key Lab Mat Chem Energy Convers & Sto, Wuhan 430074, Peoples R China

来源：

CORROSION SCIENCE | 2020年 / 163卷

基金：

中国国家自然科学基金;

关键词：

Stainless steel; EIS; Polarization; Stress corrosion; Crevice corrosion; FILM RUPTURE MODEL; N80; CARBON-STEEL; PASSIVATION BEHAVIOR; PIPELINE STEEL; UNS S31803; 304-STAINLESS-STEEL; DEFORMATION; HYDROGEN; TEMPERATURE; DISSOLUTION;

D O I：

10.1016/j.corsci.2019.108290

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion behaviour of 13Cr stainless steel under stress and crevice in 3.5 wt.% NaCl solution was studied by electrochemical measurements. It is demonstrated that the applied stress degrades the passive film, resulting in negative shift of pitting potential and enhanced susceptibility of pitting corrosion. The crevice corrosion of 13Cr stainless steel involves three stages: induction period, rapid development period and stable development period. In the coexistence of crevice and stress, the enhanced anodic reaction by applied stress accelerates the accumulation of H+ and Cl- ions inside crevice, which shortens the induction period and promotes the propagation of crevice corrosion.

引用

页数：13

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