A finite element analysis of strain induced transformation rolling and an experimental study on the grain refinement potential of severe undercooling thermo-mechanical treatment

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	A finite element analysis of strain induced transformation rolling and an experimental study on the grain refinement potential of severe undercooling thermo-mechanical treatment
	C. J. Huang; D. Z. Li; Y. Y. Li
	2003
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	352 期号:1-2 页码:136-143
摘要	A finite element analysis was performed to study the strain induced transformation rolling process through which ultra-fine-grain steels were produced. Within the surface layer of the specimen, where ultra-fined grains were found, high strain and severe undercooling were found to coexist during hot deformation. It is proposed in this paper that the ultra-refinement was caused by the deformation of austenite in a severely undercooled state. To verify the grain refinement potential of severe undercooling thermomechanical treatment, hot compression experiments were done on a Gleeble1500 thermo-mechanical simulator. Severe undercooling was obtained by cooling the specimens at very high cooling rate before deformation. Metallographic observations showed that ultrafine grains could be obtained at a true strain of 0.9 provided that undercooling was higher than 200 K. (C) 2002 Published by Elsevier Science B.V.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china.;huang, cj (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Ultra-fine Grains Hot Rolling Severe Undercooling Thermo-mechanical Treatment Ultra-fine Ferrite Steel Plates Strip Deformation Austenite
URL	查看原文
WOS记录号	WOS:000182967200020
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35858
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. J. Huang,D. Z. Li,Y. Y. Li. A finite element analysis of strain induced transformation rolling and an experimental study on the grain refinement potential of severe undercooling thermo-mechanical treatment[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2003,352(1-2):136-143.
APA	C. J. Huang,D. Z. Li,&Y. Y. Li.(2003).A finite element analysis of strain induced transformation rolling and an experimental study on the grain refinement potential of severe undercooling thermo-mechanical treatment.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,352(1-2),136-143.
MLA	C. J. Huang,et al."A finite element analysis of strain induced transformation rolling and an experimental study on the grain refinement potential of severe undercooling thermo-mechanical treatment".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 352.1-2(2003):136-143.