Inducing heterogeneity in an austenitic stainless steel by equal channel angular sheet extrusion (ECASE)

An austenitic stainless steel was processed at room temperature by equal channel angular sheet extrusion (ECASE). The microstructure evolution was heterogeneous across the sheet thickness with a higher martensitic transformation in the zones closer to the edges than in the sheet core due to the defo...

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Detalhes bibliográficos
Autores: Muñoz Bolaños, Jairo Alberto|||0000-0002-6129-0799, Higuera Cobos, Oscar Fabián, M'Doihoma, Rose, Avalos, Martina Cecilia, Bolmaro, Raúl
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/373648
Acesso em linha:https://hdl.handle.net/2117/373648
https://dx.doi.org/10.1016/j.jmrt.2019.04.013
Access Level:acceso abierto
Palavra-chave:Austenitic stainless steel
Stainless steel
Hardness
Grain size
Texture
Martensite
Strength
Acer inoxidable austenític
Àrees temàtiques de la UPC::Enginyeria dels materials
Descrição
Resumo:An austenitic stainless steel was processed at room temperature by equal channel angular sheet extrusion (ECASE). The microstructure evolution was heterogeneous across the sheet thickness with a higher martensitic transformation in the zones closer to the edges than in the sheet core due to the deformation-induced martensite (DIM) phenomena. The material heterogeneity induced by one ECASE pass gave a good strength–ductility relationship.