Effect of hot plastic deformation of austenite on the transformation characteristics of eutectoid carbon steel under fast heating and cooling conditions

被引：20
作者：
Maalekian, M.
Lendinez, M. L.
Kozeschnik, E.
Brantner, H. P.
Cerjak, H.
机构：
[1] Graz Univ Technol, Inst Mat Sci Welding & Forming, A-8010 Graz, Austria
[2] Voestalpine Schienen GmbH, Technol Forsch & Entwicklung, A-8700 Leoben, Austria
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 454卷
关键词：
Austenite deformation; phase transformation; thermo-mechanical processing; mechanical stabilization;
D O I：
10.1016/j.msea.2006.11.102
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of hot compressive plastic deformation (effective strain > 40%) on the decomposition kinetics of austenite into pearlite and martensite in a eutectoid carbon steel has been studied. Dilatometer experiments have been carried out in fast heating cycles up to 1100 degrees C and 1 s austenitization. The results show that the transformation from austenite to pearlite is markedly accelerated and the maximum attainable fraction of pearlite increases with deformation. In contrast, the martensite start temperature is slightly lowered, which is expected for a displacive transformation mechanism due to mechanical stabilization. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：446 / 452
页数：7
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