A Simple Model for Abnormal Grain Growth

Mohammad Abdur Razzak; Michel Perez; Thomas Sourmail; Sophie Cazottes; Marion Frotey

doi:10.2355/isijinternational.52.2278

ISIJ International

Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559

Regular Article

A Simple Model for Abnormal Grain Growth

Mohammad Abdur Razzak, Michel Perez, Thomas Sourmail, Sophie Cazottes, Marion Frotey

Author information

Keywords: abnormal grain growth, modeling, pinning, low alloy steels

JOURNAL OPEN ACCESS

2012 Volume 52 Issue 12 Pages 2278-2282

DOI https://doi.org/10.2355/isijinternational.52.2278

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Abstract

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.

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