A simple model for slow strain rate and constant load corrosion tests of austenitic stainless steel in acid aqueous solution containing sodium chloride

被引：59

作者：

da Costa-Mattos, H. S. ^{[1
]}

Bastos, I. N. ^{[2
]}

Gomes, J. A. C. P. ^{[3
]}

机构：

[1] Univ Fed Fluminense, Dept Engn Mecan, Lab Mecan Teor & Aplicada, BR-24210240 Niteroi, RJ, Brazil

[2] Univ Estado Rio de Janeiro, Inst Politecn, BR-28601970 Nova Friburgo, RJ, Brazil

[3] Univ Fed Rio de Janeiro, COPPE, PEMM, BR-21945970 Rio De Janeiro, Brazil

来源：

CORROSION SCIENCE | 2008年 / 50卷 / 10期

关键词：

Stainless steel; Modelling studies; Stress corrosion;

D O I：

10.1016/j.corsci.2008.07.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present paper is concerned with the modelling of both slow strain rate and constant load tests of austenitic steels in acid solutions containing sodium chloride at room temperature. In a phenomenological approach, based upon thermodynamics of continuum solids and elasto-viscoplastic damage, besides the classical variables (stress, total strain, and plastic strain), an additional scalar variable related to the damage induced by stress corrosion is introduced. An evolution law depending on the corrosive environment parameters is proposed for this damage variable. The model prediction is compared with curves obtained experimentally considering different strain rates in different solutions showing a good agreement. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2858 / 2866

页数：9

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