Evolution of residual strains in metastable austenitic stainless steels and the accompanying strain induced martensitic transformation

Almer, Jon (author): Advanced Photon Source (APS), Argonne National Laboratory, Argonne,Argonne National Laboratory, USA

Lienert, Ulrich (author): Advanced Photon Source (APS), Argonne National Laboratory, Argonne,Argonne National Laboratory, USA

Odén, Magnus (author): KTH,Luleå tekniska universitet,Materialvetenskap,Metallografi,Luleå University of Technology

(creator_code:org_t)

Uetikon-Zuerich : Trans Tech Publications Inc. 2006
2006
English.
In: Residual Stresses VII. - Uetikon-Zuerich : Trans Tech Publications Inc.. - 0878494146 ; 524-525, s. 818-826

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.4...; https://urn.kb.se/re...; https://urn.kb.se/re...; show less...

Abstract Subject headings

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...

By the author/editor: Hedström, Peter; Almer, Jon; Lienert, Ulrich; Odén, Magnus

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Other Materials ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Metallurgy and M ...

By the university: Luleå University of Technology; Royal Institute of Technology; Linköping University

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