23.05.2020 | Ausgabe 8/2020

On the Degradation of Retained Austenite in Transformation Induced Plasticity Steel
- Zeitschrift:
- Metallurgical and Materials Transactions A > Ausgabe 8/2020
Wichtige Hinweise
Manuscript submitted March 1, 2020.
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Abstract
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.