Superledge Model for Interphase Precipitation During Austenite-to-Ferrite Transformation

被引：22
作者：
Chen, Meng-Yang [1 ,2 ]
Goune, Mohamed [3 ]
Militzer, Matthias [4 ]
Brechet, Yves [1 ]
Yang, Jer-Ren [2 ]
机构：
[1] Grenoble INP, SIMaP Lab, F-38402 St Martin Dheres, France
[2] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 10617, Taiwan
[3] CNRS, Inst Chim Matiere Condensee Bordeaux, UPR 9048, Pesssac, France
[4] Univ British Columbia, Ctr Met Proc Engn, Vancouver, BC V6T 1Z4, Canada
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 12期
关键词：
NANOMETER-SIZED CARBIDES; VANADIUM STEELS; PHASE-TRANSFORMATION; MECHANICAL-PROPERTIES; ALLOYED STEELS; BOUNDARIES; KINETICS; VC; FE;
D O I：
10.1007/s11661-014-2486-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A model for interphase precipitation has been developed based on the ledge mechanism of austenite-to-ferrite transformation. Carbide precipitation is considered on the migrating ferrite/austenite interface as an interaction of transformation and precipitation kinetics. The derived equations describe sheet spacing and particle spacing of interphase-precipitated carbides as well as the overall interface velocity which are related to the nucleation rates of carbides and ferrite ledges, respectively. The microstructure characteristics of interphase precipitation are predicted as a function of transformation temperature and steel composition and replicate trends observed experimentally.
引用
收藏
页码：5351 / 5361
页数：11
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