Article ID Journal Published Year Pages File Type
1471480 Corrosion Science 2008 9 Pages PDF
Abstract

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.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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