Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Mechanical Properties
Analysis of Tensile Deformation Behavior by in situ Neutron Diffraction Experiments of a 1 GPa-grade TRIP Steel with High Elongation
Noriyuki TsuchidaTakaaki TanakaYuki Toji
Author information
JOURNALS FREE ACCESS FULL-TEXT HTML

2019 Volume 105 Issue 9 Pages 918-926

Details
Abstract

The better uniform elongation of the 1 GPa-grade TRIP-aided multi-phase steel with retained austenite (γR) shape of needle-like was discussed by in situ neutron diffraction experiments during tensile test. The better uniform elongation can be ascribed by not only the deformation-induced martensitic transformation of γR but also the deformation behavior of γR and ferrite phase. Especially, the tensile deformation behavior of γR is found to be closely associated with both of the stress-strain curve and the deformation-induced martensitic transformation of γR. The tensile deformation behavior of γR should be considered as one of the conditions to obtain better TRIP effect.

Information related to the author
© 2019 The Iron and Steel Institute of Japan
Previous article Next article
feedback
Top