Solidification Characteristics and Micro-Segregation of Sub-Eutectoid U-Nb Alloy

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	Solidification Characteristics and Micro-Segregation of Sub-Eutectoid U-Nb Alloy
	Chen Bo 1; Zhao Xiujuan 1; Liu Kui 1; Chen Shijun 2; Wang Zhenhong 2
刊名	RARE METAL MATERIALS AND ENGINEERING
	2018-02-01
卷号	47 期号:2 页码:642-646
关键词	sub-eutectoid U-Nb alloy solidification micro-segregation
ISSN号	1002-185X
通讯作者	Chen Bo(bchen@imr.ac.cn)
英文摘要	The solidus, liquidus and volume of residual liquid were achieved by analyzing the solidification behavior of a sub-eutectoid U-Nb alloy. Results show that the dentritic crystal connects with each other and residual liquid is separated by solid phase during terminal solidification. Thus, serious micro-porosity form easily in isolated residual liquid area for the filling channels plugging and residual liquid unable to fill the pore, and the amount of porosity in casting is about 1.6% derived from theoretical calculation. The segregation coefficients of niobium at intermediate and terminal solidification are 0.16 and 0.11, respectively, which indicates that Nb is a strong negative segregation element and it severely clusters in the dendritic area.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000429187900038
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/127711]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen Bo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.China Acad Engn Phys, Mianyang 621900, Peoples R China
推荐引用方式 GB/T 7714	Chen Bo,Zhao Xiujuan,Liu Kui,et al. Solidification Characteristics and Micro-Segregation of Sub-Eutectoid U-Nb Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2018,47(2):642-646.
APA	Chen Bo,Zhao Xiujuan,Liu Kui,Chen Shijun,&Wang Zhenhong.(2018).Solidification Characteristics and Micro-Segregation of Sub-Eutectoid U-Nb Alloy.RARE METAL MATERIALS AND ENGINEERING,47(2),642-646.
MLA	Chen Bo,et al."Solidification Characteristics and Micro-Segregation of Sub-Eutectoid U-Nb Alloy".RARE METAL MATERIALS AND ENGINEERING 47.2(2018):642-646.