Austenite stabilization through manganese enrichment

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2011 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 64, pages 185-188 (issn: 1359-6462,

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Authors: Emmanuel De Moor; David K. Matlock; John G. Speer; Matthew J. Merwin;

doi: 10.1016/j.scriptamat.2010.09.040

Austenite stabilization through manganese enrichment

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Abstract

A model is proposed to predict austenite stabilization through manganese partitioning between ferrite and austenite. The model predicts retained austenite fractions as a function of intercritical annealing temperature based on equilibrium phase fractions and solute contents. Thermodynamic data are used to calculate the Ms temperature of the enriched austenite in order to predict fresh martensite formation upon cooling to room temperature. An intercritical annealing temperature resulting in the greatest retained austenite fraction is predicted which correlates to some experimental observations.

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