Ferrite/pearlite band prevention in dual phase and TRIP steels: Model development

被引：31

作者：

Xu, W ^{[1
]}

Rivera-Diaz-Del-Castillo, PEJ ^{[1
]}

van der Zwaag, S ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Aerosp Engn, NL-2629 HS Delft, Netherlands

来源：

ISIJ INTERNATIONAL | 2005年 / 45卷 / 03期

关键词：

segregation; banding; ferrite; pearlite; microstructural homogeneity; kinetics; phase transformations; diffusion; nucleation; solidification;

D O I：

10.2355/isijinternational.45.380

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A model for predicting the conditions for ferrite/pearlite band prevention in dual phase and TRIP steels has been developed. The competition between processing parameters such as the austenitisation time and temperature, the transformation temperature and microchemical segregation wavelength is explored. The effects of alloy composition in the tendency to form ferrite/pearlite bands are quantified. A simple formula combining processing parameters and compositions for describing band formation is presented. The calculations show that the most prominent factor for preventing banding is the control of the microchemical wavelength. In addition to C and Mn, Al and Si concentrations have shown to play a smaller but significant role in band formation behaviour.

引用

页码：380 / 387

页数：8

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