Nonequilibrium thermodynamic modeling of carbon partitioning in quench and partition (Q&P) steel

被引：22
作者：
Behera, Amit K. [1 ]
Olson, G. B. [1 ]
机构：
[1] Northwestern Univ, Mat Sci & Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA
来源：
SCRIPTA MATERIALIA | 2018年 / 147卷
关键词：
Quench and partition; Para-equilibrium; Thermodynamic modeling; HEXRD; 3DAP; DIFFUSIONAL DISPLACIVE TRANSFORMATIONS; HETEROGENEOUS MARTENSITIC NUCLEATION; AUSTENITE; KINETICS; BAINITE;
D O I：
10.1016/j.scriptamat.2017.12.027
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of partitioning temperature on carbon partitioning during the quench and partition (Q&P) cycle and the associated non-equilibrium phase transformation thermodynamics have been investigated. Lower partitioning temperatures are reported to result in higher carbon partitioning with varying austenite phase fraction. Thermodynamic simulations considering para-equilibrium conditions with an added temperature-dependent effective stored energy contribution have been shown to reasonably predict the retained austenite carbon content The developed models have been validated with new alloy compositions, QP cycles and data from existing literature. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6 / 10
页数：5
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