Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy

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	Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy
	Ma, Xiaoping ; Li, Dianzhong
刊名	INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
	2017-05-01
卷号	108 期号:5 页码:364-377
关键词	Solidification Microstructures Microsegregation Enriched boundar0y layer Discrete crystal growth
ISSN号	1862-5282
通讯作者	Ma, XP (reprint author), Inst Met Sci & Technol, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China.
中文摘要	In this study, the evolutions of the microstructures and microsegregation are related to the cooling curve in equiaxed dendritic solidification of the Al-5 wt.% Cu alloy. In addition to regular branching of dendritic arms, leaf venation branching, free branching and radial branching were also observed. With the extension of the dendritic zone, both the composition of the extra-dendritic melt and average composition of the dendritic zone change. The microsegregation mechanism in the dendritic zone deviates from the modified Scheil model. The microsegregation data suggest that the single dendritic arm is a porous structure containing the trapped boundary layer. As the temperature decreased after the isothermal periods, some original dendritic arms and interdendritic melt converged to form a new dendritic arm.
学科主题	Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	Youth Innovation Promotion Association of Chinese Academy of Sciences; National Natural Science Foundation of China [U1508215]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78154]
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	Ma, Xiaoping,Li, Dianzhong. Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,2017,108(5):364-377.
APA	Ma, Xiaoping,&Li, Dianzhong.(2017).Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy.INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,108(5),364-377.
MLA	Ma, Xiaoping,et al."Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy".INTERNATIONAL JOURNAL OF MATERIALS RESEARCH 108.5(2017):364-377.