The analysis of phase transformation for the prediction of microstructure change after hot forming

被引：24

作者：

Liu, JS ^{[1
]}

Yanagida, A ^{[1
]}

Sugiyama, S ^{[1
]}

Yanagimoto, J ^{[1
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

ISIJ INTERNATIONAL | 2001年 / 41卷 / 12期

关键词：

numerical analysis; phase transformation; continuous cooling; bar rolling; microstructure evolution;

D O I：

10.2355/isijinternational.41.1510

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A new model of phase transformation for continuous cooling after hot forming is proposed. It is based on incremental formulation of conventional nucleation and grain growth theory, and dislocation density is introduced to describe the effect of hot forming to phase transformation. Upsetting experiments under different cooling rates, plastic strains and deformation temperatures are performed to validate the accuracy of the proposed model. The proposed model has been applied to simulate phase transformation and final microstructure after 4-pass bar rolling.

引用

页码：1510 / 1516

页数：7

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