On the conditions for achieving ultra-fine grains via thermo-mechanical treatment
文献类型：期刊论文
| 作者 | C. J. Huang ; H. Zhang ; Y. J. Nan ; D. Z. Li ; Y. Y. Li |
| 刊名 | Journal of Materials Processing Technology
 |
| 出版日期 | 2005 |
| 卷号 | 160期号:2页码:123-127 |
| 关键词 | ultra-fine grains hot rolling steel strips undercooling strip rolling process ferrite steel transformation deformation austenite |
| ISSN号 | 0924-0136 |
| 中文摘要 | A finite element analysis was performed to study a novel hot rolling process by which ultra-fine grains (UFG) were achieved. FE analysis shows that the formation of ultra-fine grains was caused by a combination of severe undercooling and intensive deformation. It is found that undercooling was greater than 180 K within the ultra-fine grained surface layer. It is suggested in this paper that severe undercooling could significantly enhance the efficiency of grain refinement in thermo-mechanical processes. Hence, ultra-fine grains were obtained via a relatively low reduction hot rolling process. Special hot compression tests, during which severe undercooling were introduced before deformation, were done to verify the effect of undercooling on grain refinement. Ultra-fine grains were achieved by compression at a reduction ratio of 0.7. The critical undercooling to achieve ultra-fine grains was about 200 K. (c) 2004 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34877]  |
| 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. J. Huang,H. Zhang,Y. J. Nan,et al. On the conditions for achieving ultra-fine grains via thermo-mechanical treatment[J]. Journal of Materials Processing Technology,2005,160(2):123-127. |
| APA | C. J. Huang,H. Zhang,Y. J. Nan,D. Z. Li,&Y. Y. Li.(2005).On the conditions for achieving ultra-fine grains via thermo-mechanical treatment.Journal of Materials Processing Technology,160(2),123-127. |
| MLA | C. J. Huang,et al."On the conditions for achieving ultra-fine grains via thermo-mechanical treatment".Journal of Materials Processing Technology 160.2(2005):123-127. |
入库方式： OAI收割
来源：金属研究所
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