Modelling the austenite to ferrite phase transformation in low carbon steels in terms of the interface mobility

被引：56
作者：
Kop, TA [1 ]
van Leeuwen, Y [1 ]
Sietsma, J [1 ]
van der Zwaag, S [1 ]
机构：
[1] Delft Univ Technol, Mat Sci Lab, NL-2628 AL Delft, Netherlands
来源：
ISIJ INTERNATIONAL | 2000年 / 40卷 / 07期
关键词：
transformation model; transformation kinetics; interface mobility; low-carbon steel;
D O I：
10.2355/isijinternational.40.713
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The kinetics of the phase transformation between the high temperature FCC-phase austenite and the low temperature BCC-phase ferrite as it occurs during controlled cooling of hot roiled low carbon steels is described using a physical model that considers austenite grain size, nucleus density, composition effects, and the austenite/ferrite interface mobility. The model is verified against experimental dilatometry data for three lean carbon-manganese steel grades. The model yields adequate reproductions of the transformation kinetics. Ferrite grain coarsening during the transformation appears to have a significant effect on the final microstructure.
引用
收藏
页码：713 / 718
页数：6
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