|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations in Multi-component Systems: An MPMD Symposium Honoring Gary R. Purdy
||Reversed Austenite Transformation in Medium Manganese Steels
||Zhi-Gang Yang, Chuan Zhao, Chi Zhang, Hao Chen
|On-Site Speaker (Planned)
The reversed austenite transformation from martensite under various heat treatment in medium manganese (3~7wt%) steel for potential application in automobile articles has been studied in this work, including the effect of annealing temperature, time and alloying elements. At lower temperatures, the reversed austenite mainly nucleates and grows at the martensite lath boundary or the prior austenite grain boundary, the volume fraction of retained austenite at room temperature increased with annealing time; at higher temperatures, the reversed austenite may also form inside martensite laths and a large amount of retained austenite can be obtained within short time, with prolonged annealing, the retained austenite amount decreased remarkably at room temperature, which is due to significant difference of the composition and accordingly the stability of reversed austenite.
Key words: intercritical annealing; reversed austenite transformation; stability of austenite; medium manganese steels.
||Planned: A print-only volume