Transformation of precipitated phases in Zr50.5Cu34.5-xNi4Al11Agx alloy master ingots with adding Ag

doi:10.1179/1743284710Y.0000000006

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	Transformation of precipitated phases in Zr50.5Cu34.5-xNi4Al11Agx alloy master ingots with adding Ag
	Deng, S. T.1,2; Yan, P. F.1,2; Zhang, H. F.1; Wang, A. M.1; Hu, Z. Q.1
刊名	MATERIALS SCIENCE AND TECHNOLOGY
	2011-11-01
卷号	27 期号:11 页码:1632-1638
关键词	Phase transformation Glass forming ability Bulk metallic glass Microstructure characterisation
ISSN号	0267-0836
DOI	10.1179/1743284710Y.0000000006
通讯作者	Zhang, H. F.(hfzhang@imr.ac.cn)
英文摘要	The transformation of precipitated phases of Zr50.5Cu34.5-xNi4Al11Agx alloy master ingots with Ag substitution of Cu was studied in detail by phase analysis. The precipitated (Zr-Cu) rich phases deteriorate the glass forming ability (GFA) of Zr50.5Cu34.5Ni4Al11. Two new (Zr-Cu) rich phases, A1 with bcc structure and a=0.339 nm and A2 with fcc superlattice structure and a=1.21 nm, were identified by a transmission electron microscope. When x=2, A1 phase disappears, and A2 phase remains and is suppressed gradually with further Ag addition. When x=13, one precipitated phase with Ag more than 13 at-% begins to deteriorate GFA. In the view of chemistry, the precipitation of (Zr-Cu) rich phases means that the interaction between Cu and Zr atoms is rather drastic. The addition of Ag weakens the interaction between Cu and Zr. The similar competition mechanism proposed by the authors plays an important role in suppressing precipitated phases and improving GFAs.
资助项目	National Natural Science Foundation of China[50825402] ; National Natural Science Foundation of China[50731005]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MANEY PUBLISHING
WOS记录号	WOS:000296582800004
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/103722]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, H. F.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Deng, S. T.,Yan, P. F.,Zhang, H. F.,et al. Transformation of precipitated phases in Zr50.5Cu34.5-xNi4Al11Agx alloy master ingots with adding Ag[J]. MATERIALS SCIENCE AND TECHNOLOGY,2011,27(11):1632-1638.
APA	Deng, S. T.,Yan, P. F.,Zhang, H. F.,Wang, A. M.,&Hu, Z. Q..(2011).Transformation of precipitated phases in Zr50.5Cu34.5-xNi4Al11Agx alloy master ingots with adding Ag.MATERIALS SCIENCE AND TECHNOLOGY,27(11),1632-1638.
MLA	Deng, S. T.,et al."Transformation of precipitated phases in Zr50.5Cu34.5-xNi4Al11Agx alloy master ingots with adding Ag".MATERIALS SCIENCE AND TECHNOLOGY 27.11(2011):1632-1638.