Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy

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	Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy
	Zhao Zhanyong; Guan Renguo; Wang Xiang; Liu Chunming
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2013
卷号	26 期号:4 页码:447-454
关键词	SLOPING PLATE PROCESS SOLIDIFICATION BEHAVIORS EVOLUTION TEXTURE EXTRUSION AL Semisolid Rolling AZ91 alloy Microstructure
ISSN号	1006-7191
其他题名	Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy
英文摘要	A novel semisolid rheo-rolling process of AZ91 alloy was proposed. The microstructure formation mechanism of AZ91 magnesium alloy during the process was studied. The results reveal that the eruptive nucleation and the heterogeneous nucleation exist. During the grain growth process, the grain breakage took place and transformed into fine spherical or rosette grains on the sloping plate gradually, the other grain growth style is direct globular growth. Due to the secondary crystallization of the remnant liquids in the roll gap, the microstructure of the strip becomes finer with the increment of the casting temperature from 650 degrees C to 690 degrees C. But when the casting temperature reached 710 degrees C, a part of the liquid alloy transformed into the eutectic phases, and the primary grains ripened to form coarse dendrites. In the casting temperature range from 650 degrees C to 690 degrees C, AZ91 alloy strip with fine spherical or rosette grains was prepared by the proposed process.
资助项目	[National Natural Science Foundation for Outstanding Young Scholars of China] ; [National Natural Science Foundation of China] ; [Fok Ying Tong Education Foundation] ; [Basic Scientific Research Operation of Center University] ; [Chinese National Program for Fundamental Research and Development]
语种	英语
CSCD记录号	CSCD:4896504
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/155539]
专题	金属研究所_中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Zhao Zhanyong,Guan Renguo,Wang Xiang,et al. Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2013,26(4):447-454.
APA	Zhao Zhanyong,Guan Renguo,Wang Xiang,&Liu Chunming.(2013).Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,26(4),447-454.
MLA	Zhao Zhanyong,et al."Microstructure Formation Mechanism During a Novel Semisolid Rheo-rolling Process of AZ91 Magnesium Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS 26.4(2013):447-454.