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

页码：713 / 718

页数：6

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