Austenite stabilization through manganese enrichment

被引：278

作者：

De Moor, Emmanuel ^{[1
]}

Matlock, David K. ^{[1
]}

Speer, John G. ^{[1
]}

Merwin, Matthew J. ^{[2
]}

机构：

[1] Colorado Sch Mines, Adv Steel Proc & Prod Res Ctr, Golden, CO 80401 USA

[2] US Steel Corp, Res & Technol Ctr, Munhall, PA USA

来源：

SCRIPTA MATERIALIA | 2011年 / 64卷 / 02期

基金：

美国国家科学基金会;

关键词：

Manganese partitioning; TWIP steel; TRIP steel; Retained austenite; Third generation AHSS; LOW-CARBON; MECHANICAL-PROPERTIES; STEEL;

D O I：

10.1016/j.scriptamat.2010.09.040

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 M-s 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. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：185 / 188

页数：4

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