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Study of microplasticity in 304L stainless steel

Published online by Cambridge University Press:  25 October 2002

P. Vaucheret  and
A. Galtier
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Abstract

Discontinuities of microstructure in steels induce stress concentrations. Microplasticity is the plasticity which exists locally at these stress concentrations, whereas the remainder of the material is in the elastic domain. The microplasticity threshold is the nominal stress in uniaxial loading from which microplasticity exists. During fatigue tests, this threshold has been determined for the 304 L stainless steel by measurements of temperature variations, informations derived from hysteresis loops, observations of microstructure at the surface of polished specimens. The microplasticity threshold of the studied material is between 60 and 75 MPa.

Type
Research Article
Information
Metallurgical Research & Technology , Volume 99 , Issue 1: Procédés et environnementProduits et utilisations , January 2002 , pp. 63 - 69
Copyright
© La Revue de Métallurgie, 2002

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