A Simple Model for Abnormal Grain Growth

被引：9

作者：

Razzak, Mohammad Abdur ^{[1
]}

Perez, Michel ^{[1
]}

Sourmail, Thomas ^{[2
]}

Cazottes, Sophie ^{[1
]}

Frotey, Marion ^{[2
]}

机构：

[1] Univ Lyon, INSA Lyon, MATEIS, UMR,CNRS 5510, F-69621 Villeurbanne, France

[2] Ascomet CREAS, F-57301 Hagondange, France

来源：

ISIJ INTERNATIONAL | 2012年 / 52卷 / 12期

关键词：

abnormal grain growth; modeling; pinning; low alloy steels;

D O I：

10.2355/isijinternational.52.2278

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A new approach to predict the propagation of abnormal grain growth is presented. The growth rate of an existing large (abnormal) grain is compared to the growth rate of the surrounding (normal) grains. A very simple argument based on the reduction of grain boundary surface serves as driving force, whereas the pinning force is due to second phase precipitates. The model is successfully tested and validated on a low alloy steel presenting various state of precipitation depending on thermal history.

引用

页码：2278 / 2282

页数：5

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