Phase Field Study on the Austenite/Ferrite Transition in Low Carbon Steel

被引：14

作者：

Cha, Pil-Ryung ^{[1
]}

Kim, Jin-You ^{[1
]}

Kim, Won-Tae ^{[2
]}

Kim, Seong Gyoon ^{[3
]}

机构：

[1] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea

[2] Chongju Univ, Div Appl Sci, Chonju, South Korea

[3] Kunsan Natl Univ, Korea Dept Mat Sci & Engn, Kunsan, South Korea

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2010年 / 25卷 / 1-3期

基金：

新加坡国家研究基金会;

关键词：

Austenite; Elastic effect; Ferrite; Phase field model; Transformation kinetics; MODEL;

D O I：

10.1080/10426910903153166

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A phase field model for the austenite/ferrite transition, including the elastic effect caused by the volume mismatch between the austenite and the ferrite, has been presented and applied to the nucleation and growth of the ferrite in the austenite with various cooling rates. The ferrite particles nucleated at the triple junctions of the austenite grains initially grow fast along the grain boundaries. After the austenite grain boundaries are completely wetted by the ferrite, the ferrite starts to grow to the inside of the austenite grain. While it suppresses the growth of the ferrite at the early stage, the elastic field due to the austenite-ferrite volume difference enhances the growth of the ferrite particles at the late stage.

引用

页码：106 / 110

页数：5

共 7 条

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