Detection and characterization of stress-corrosion cracking on 304 stainless steel by electrochemical noise and acoustic emission techniques

被引：136

作者：

Du, G. ^{[1
]}

Li, J. ^{[1
]}

Wang, W. K. ^{[1
]}

Jiang, C. ^{[1
]}

Song, S. Z. ^{[2
]}

机构：

[1] Tianjin Univ, State Key Lab Precis Measurement Technol & Instru, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 09期

关键词：

Acid solutions; Stainless steel; Acid corrosion; Stress corrosion; MONITORING PITTING CORROSION; AUSTENITIC STAINLESS-STEELS; AE RESPONSE; LOCALIZED CORROSION; TENSILE TESTS; INITIATION; ALUMINUM; SIGNALS; PROPAGATION; ALLOY;

D O I：

10.1016/j.corsci.2011.05.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper focuses on the corrosion process of 304 stainless steel in acidic NaCl solution during slow strain rate testing experiment by using electrochemical noise (EN) and acoustic emission (AE) techniques. Meanwhile, the EN and AE characteristics of corrosion process were studied. The results show that stress corrosion occurs easily in the experimental system, and corrosion forms develops gradually from localized corrosion including stress corrosion and pitting corrosion to general corrosion. The AE signal characteristics of pitting corrosion, crack and bubble break-up are significantly different during the corrosion process. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2918 / 2926

页数：9

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