Prediction of post-dynamic austenite-to-ferrite transformation and reverse transformation in a low-carbon steel by cellular automaton modeling
文献类型：期刊论文
| 作者 | C. W. Zheng ; D. Raabe ; D. Z. Li |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2012 |
| 卷号 | 60期号:12页码:4768-4779 |
| 关键词 | Strain-induced transformation Post-dynamic transformation Cellular automaton Modeling Low-carbon steel strain-induced transformation deformation-induced ferrite ultrafine-grained steels c-mn steel phase-transformation mechanical-properties microalloyed steel microstructure simulation alloys |
| ISSN号 | 1359-6454 |
| 中文摘要 | The post-dynamic transformation that takes place during the subsequent isothermal holding for the case when dynamic strain-induced transformation (DSIT) from austenite to ferrite occurs during hot deformation is investigated by cellular automaton modeling. The simulation provides a better understanding of carbon diffusion in retained austenite and the resulting microstructure evolution during the post-dynamic transformation. The predictions reveal that continuing transformation from retained austenite to ferrite and the reverse transformation can occur simultaneously in the same microstructure during post-deformation isothermal holding owing to the locally acting chemical equilibrium conditions. Competition between forward and reverse transformation exists during the early stage of post-dynamic heat treatment. It is also revealed that increasing the final strain of DSIT might promote the reverse transformation, whereas the continuous austenite-to-ferrite transformation yields a diminishing effect. The influence of the DSIT final strain on the grain size of ferrite and the characteristics of the resultant microstructure is also discussed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60497]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. W. Zheng,D. Raabe,D. Z. Li. Prediction of post-dynamic austenite-to-ferrite transformation and reverse transformation in a low-carbon steel by cellular automaton modeling[J]. Acta Materialia,2012,60(12):4768-4779. |
| APA | C. W. Zheng,D. Raabe,&D. Z. Li.(2012).Prediction of post-dynamic austenite-to-ferrite transformation and reverse transformation in a low-carbon steel by cellular automaton modeling.Acta Materialia,60(12),4768-4779. |
| MLA | C. W. Zheng,et al."Prediction of post-dynamic austenite-to-ferrite transformation and reverse transformation in a low-carbon steel by cellular automaton modeling".Acta Materialia 60.12(2012):4768-4779. |
入库方式： OAI收割
来源：金属研究所
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