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

被引：24
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
相关论文
共 28 条
[1]  
Aaronson Hubert I., 1999, Lectures on the Theory of Phase Transformations, V2nd
[2]   EFFECT OF NITROGEN ON PRECIPITATION AND TRANSFORMATION KINETICS IN VANADIUM STEELS [J].
BALLIGER, NK ;
HONEYCOMBE, RWK .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (03) :421-429
[3]  
BATTE AD, 1973, J IRON STEEL I, V211, P284
[4]  
Campbell K., 1974, Metal Science, V8, P197
[5]   Interphase precipitation in vanadium-alloyed steels: Strengthening contribution and morphological variability with austenite to ferrite transformation [J].
Chen, M. -Y. ;
Goune, M. ;
Verdier, M. ;
Brechet, Y. ;
Yang, J. -R. .
ACTA MATERIALIA, 2014, 64 :78-92
[6]  
Davenport A.T., P R SOC A, V322, P191
[7]   Development of high strength hot-rolled sheet steel consisting of ferrite and nanometer-sized carbides [J].
Funakawa, Y ;
Shiozaki, T ;
Tomita, K ;
Yamamoto, T ;
Maeda, E .
ISIJ INTERNATIONAL, 2004, 44 (11) :1945-1951
[8]   ON THE MECHANISMS OF INTERPHASE BOUNDARY CARBIDE PRECIPITATION [J].
FURUHARA, T ;
AARONSON, HI .
SCRIPTA METALLURGICA, 1988, 22 (10) :1635-1637
[9]   Interface mobility in case of the austenite-to-ferrite phase transformation [J].
Gamsjaeger, E. ;
Militzer, M. ;
Fazeli, F. ;
Svoboda, J. ;
Fischer, F. D. .
COMPUTATIONAL MATERIALS SCIENCE, 2006, 37 (1-2) :94-100
[10]   Austenite-to-ferrite phase transformation in low-alloyed steels [J].
Gamsjäger, E ;
Svoboda, J ;
Fischer, FD .
COMPUTATIONAL MATERIALS SCIENCE, 2005, 32 (3-4) :360-369
123