On the Degradation of Retained Austenite in Transformation Induced Plasticity Steel

Authors

Ilana Timokhina
Azdiar Adil Gazder, University of WollongongFollow
Jiangting Wang
Ilias Bikmukhametov
Peter Hodgson
Frank Niessen, University of WollongongFollow
Elena V. Pereloma, University of WollongongFollow

RIS ID

143399

Publication Details

Timokhina, I., Gazder, A., Wang, J., Bikmukhametov, I., Hodgson, P., Niessen, F. & Pereloma, E. (2020). On the Degradation of Retained Austenite in Transformation Induced Plasticity Steel. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science,

Abstract

© 2020, The Minerals, Metals & Materials Society and ASM International. A transformation-induced plasticity steel was thermomechanically processed and then transformed to bainite at an isothermal transformation temperature of 723 K for 1800 seconds, which exceeds the time required for completion of the bainite transformation. The formation of lenticular-shaped carbides with a triclinic lattice and internal substructure was found after thermomechanical processing. After 16 years of storage at room temperature, the decomposition of retained austenite into pearlite was observed for the first time at this temperature.