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Influence of microscopic strain heterogeneity on the formability of martensitic stainless steel

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Miotti Bettanini, Alvise [UCL] Delannay, Laurent [UCL] Jacques, Pascal [UCL] Pardoen, Thomas Badinier, Guillaume Mithieux, Jean-Denis

Both finite element modeling and mean field (Mori-Tanaka) modeling are used to predict the strain partitioning in the martensite-ferrite microstructure of an AISI 410 martensitic stainless steel. Numerical predictions reproduce experimental trends according to which macroscopic strength is increased when the dissolution of carbides leads to carbon enrichment of martensite. However, the increased strength contrast of ferrite and martensite favours strain localization and high stress triaxiality in ferrite, which in turn promotes ductile damage development.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2017
Language Anglais
Journal information "AIP Conference Proceedings" - Vol. 1896, p. 020010 (2017)
Peer reviewed yes
issn 0094-243X
e-issn 1551-7616
Publication status Publié
Affiliations UCL - SST/IMMC/MEMA - Applied mechanics and mathematics
UCL - SST/IMMC/IMAP - Materials and process engineering
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Bibliographic reference Miotti Bettanini, Alvise ; Delannay, Laurent ; Jacques, Pascal ; Pardoen, Thomas ; Badinier, Guillaume ; et. al. Influence of microscopic strain heterogeneity on the formability of martensitic stainless steel. In: AIP Conference Proceedings, Vol. 1896, p. 020010 (2017)
Permanent URL http://hdl.handle.net/2078.1/188433