Solidification microstructure of the gasatomized drop of Cu-20%Co alloy

IMR OpenIR

	Solidification microstructure of the gasatomized drop of Cu-20%Co alloy
	Zhao Jiuzhou; Li Haili; Gao Lingling; He Jie
通讯作者	Zhao Jiuzhou(jzzhao@imr.ac.cn)
	2007-04-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	43 期号:4 页码:385-387
摘要	Rapid solidification experiments have been carried out with Cu-20%Co alloy under the high-pressure gas atomization conditions. Powders containing fine dispersions of Co-rich particles were obtained. The average radius of the Co-rich particles increases with the size of powders. The Co-rich droplets are repulsed by the solid/liquid interface during solidification and Co-rich particles distribute, therefore, mainly along the grain boundaries. Because the surface energy of the Co-rich liquid is relatively higher, the Co-rich droplets nucleate inside the atomized drop. After nucleation the Co-rich droplets move towards the center of the atomized drop under the effect of the temperature gradient. The droplets motion causes the formation of the Co-poor layer on the surface of the powder.
关键词	Cu-20%Co alloy gas atomization rapid solidification microstructure
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000245999200010
出版者	SCIENCE CHINA PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/89184
专题	中国科学院金属研究所
通讯作者	Zhao Jiuzhou
作者单位	Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao Jiuzhou,Li Haili,Gao Lingling,et al. Solidification microstructure of the gasatomized drop of Cu-20%Co alloy[J]. ACTA METALLURGICA SINICA,2007,43(4):385-387.
APA	Zhao Jiuzhou,Li Haili,Gao Lingling,&He Jie.(2007).Solidification microstructure of the gasatomized drop of Cu-20%Co alloy.ACTA METALLURGICA SINICA,43(4),385-387.
MLA	Zhao Jiuzhou,et al."Solidification microstructure of the gasatomized drop of Cu-20%Co alloy".ACTA METALLURGICA SINICA 43.4(2007):385-387.