Assessment of stress corrosion crack initiation and propagation in AISI type 316 stainless steel by electrochemical noise technique

被引：49

作者：

Anita, T. ^{[1
]}

Pujar, M. G. ^{[1
]}

Shaikh, H. ^{[1
]}

Dayal, R. K. ^{[1
]}

Khatak, H. S. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Corros Sci & Technol Div, Kalpakkam 603102, Tamil Nadu, India

来源：

CORROSION SCIENCE | 2006年 / 48卷 / 09期

关键词：

stress corrosion cracking; pitting corrosion; visual records of current and potential; standard deviation; power spectral density;

D O I：

10.1016/j.corsci.2005.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical noise (EN) analyses, using time domain, frequency domain and statistical parameters, were carried out on the potential and current data obtained on AISI type 316 stainless steel during (i) pitting corrosion in deaerated 0.5 M sodium chloride (NaCl) solution, and during (ii) stress corrosion cracking (SCC) in boiling acidified NaCl solution. Visual records and statistical analysis of the current and potential data alongwith the spectral estimation using maximum entropy method (MEM) gave useful informations on differentiating between these corrosion processes and on the effect of stress in accelerating pitting corrosion. The results correlated well with the optical microscopic observations. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2689 / 2710

页数：22

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