| Texto completo | |
| Autor(es): |
Souza Filho, I. R.
;
Zilnyk, K. D.
;
Sandim, M. J. R.
;
Bolmaro, R. E.
;
Sandim, H. R. Z.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING; v. 702, p. 161-172, AUG 15 2017. |
| Citações Web of Science: | 8 |
| Resumo | |
Strain partitioning and texture evolution of AISI 201 austenitic stainless steel were investigated upon cold rolling up to a true strain of epsilon = 0.92. epsilon-martensite formation is the main work hardening mechanism at low strains (epsilon = 0.11). With increasing strain, the volume fraction of alpha'-martensite increases with a sigmoidal-like behavior. Remaining untransformed austenite is intensely fragmented by mechanical microtwins. The in-grain mis-orientation increases for all phases up epsilon = 0.51 and then levels off for further strain. Strain partitions evenly between austenite and alpha'-martensite during cold rolling. X-ray texture measurements revealed that austenite develops Goss, Brass and S texture components up to the largest investigated strain. The presence of Brass component at the highest deformation seems to be assisted by mechanical twinning. The texture components of alpha'-martensite belong to the alpha- and gamma-fibers. Texture evolution of epsilon-martensite was followed by electron back scatter diffraction data and results show that texture evolves up to epsilon = 0.51 and remains nearly unchanged at larger strains, similarly as observed for austenite and alpha'-martensite. (AU) | |
| Processo FAPESP: | 13/26506-8 - Estudo da evolução microestrutural e sua relação com propriedades magnéticas e elétricas de dois aços inoxidáveis (ODS-Eurofer e AISI 201) |
| Beneficiário: | Maria Jose Ramos Sandim |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |