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Evolution of residual strains in metastable austenitic stainless steels and the accompanying strain induced martensitic transformation
Advanced Photon Source (APS), Argonne National Laboratory, Argonne.
Advanced Photon Source (APS), Argonne National Laboratory, Argonne.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-2286-5588
2006 (English)In: Residual Stresses VII: ECRS 7 ; proceedings of the 7th European Conference on Residual Stresses / [ed] Walter Reimers; Sabine Quander, Uetikon-Zuerich: Trans Tech Publications Inc., 2006, p. 821-826Conference paper, Published paper (Refereed)
Abstract [en]

The deformation behavior of metastable austenitic stainless steel AISI 301, suffering different initial cold rolling reduction, has been investigated during uniaxial tensile loading. In situ highenergy x-ray diffraction was employed to characterize the residual strain evolution and the strain induced martensitic transformation. Moreover, the 3DXRD technique was employed to characterize the deformation behavior of individual austenite grains during elastic and early plastic deformation. The cold rolling reduction was found to induce compressive residual strains in the austenite along rolling direction and balancing tensile residual strains in the -martensite. The opposite residual strain state was found in the transverse direction. The residual strain states of five individual austenite grains in the bulk of a sample suffering 2% cold rolling reduction was found to be divergent. The difference among the grains, considering both the residual strains and the evolution of these, could not be solely explained by elastic and plastic anisotropy. The strain states of the five austenite grains are also a consequence of the local neighborhood. Introduction The metastable austenitic stainless steels partially transform from the soft and ductile austenite to the hard and brittle martensite during deformation. This deformation induced martensitic transformation provides a compos...

Place, publisher, year, edition, pages
Uetikon-Zuerich: Trans Tech Publications Inc., 2006. p. 821-826
Series
Materials Science Forum, ISSN 0255-5476 ; 524-525
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-29279DOI: 10.4028/www.scientific.net/MSF.524-525.821Local ID: 2b3537e0-e78b-11db-8a98-000ea68e967bISBN: 0-87849-414-6 (print)OAI: oai:DiVA.org:ltu-29279DiVA, id: diva2:1002502
Conference
European Conference on Residual Stresses : 13/09/2006 - 15/09/2006
Note

Validerad; 2006; 20070410 (ysko)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-06-13Bibliographically approved

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Hedström, PeterOdén, Magnus

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