Stabilizing Austenite (cas 12244-31-4) via a core-shell structure in the medium Mn steels

Add time:08/09/2019    Source:sciencedirect.com

Retained Austenite (cas 12244-31-4) plays a significant role in the strength-ductility balance of medium Mn steels. In this contribution, a new processing route (Flash-Austenite Reversion Treatment, Flash-ART) was proposed to design retained austenite with a compositional core-shell structure in an Fe-0.20C-7.76Mn-1.99Al (wt%) steel. It was interestingly found that the austenite core, which should transform into martensite based on its composition and size, was stabilized by the Mn enriched shell. Flash-ART allows us to obtain more retained austenite compared with the conventional ART.

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