Glass formation adjacent to the intermetallic compounds in Cu-Zr binary system

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	Glass formation adjacent to the intermetallic compounds in Cu-Zr binary system
	Wang, YX; Yao, JH; Li, Y; Li, Y (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2018-04-01
卷号	34 期号:4 页码:605-612
关键词	Bulk Metallic-glass Amorphous-alloys Forming Ability Thermodynamics Kinetics Liquid Transition Rates
ISSN号	1005-0302
英文摘要	On the contrary to the common belief that glass formation is unfeasible near terminal intermetallic compound due to fast crystallization kinetics, here we present our findings that bulk metallic glasses are readily formed near intermetallic compounds, far away from the traditional region of glass forming near eutectics. While the intermetallic compounds themselves are not possible glass formers, bulk metallic glasses can be quenched compositionally neighboring the intermetallic compounds as close as 0.5 at.%. Taking binary Cu-Zr as a model system, the phenomenon of two optimum glass forming compositions sandwiching the corresponding intermetallic compounds (Cu51Zr14, Cu10Zr7, CuZr, CuZr2 and Cu8Zr3) is observed consistently. This new scenario of "intermetallic glass" is verified by the thermodynamic principle that the alloy liquids neighboring the intermetallic compounds possess lower Gibbs free energy than that of the compounds themselves. Furthermore, the sluggish crystallization behavior of these liquids provides an additional kinetic explanation. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; On the contrary to the common belief that glass formation is unfeasible near terminal intermetallic compound due to fast crystallization kinetics, here we present our findings that bulk metallic glasses are readily formed near intermetallic compounds, far away from the traditional region of glass forming near eutectics. While the intermetallic compounds themselves are not possible glass formers, bulk metallic glasses can be quenched compositionally neighboring the intermetallic compounds as close as 0.5 at.%. Taking binary Cu-Zr as a model system, the phenomenon of two optimum glass forming compositions sandwiching the corresponding intermetallic compounds (Cu51Zr14, Cu10Zr7, CuZr, CuZr2 and Cu8Zr3) is observed consistently. This new scenario of "intermetallic glass" is verified by the thermodynamic principle that the alloy liquids neighboring the intermetallic compounds possess lower Gibbs free energy than that of the compounds themselves. Furthermore, the sluggish crystallization behavior of these liquids provides an additional kinetic explanation. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	National Natural Science Foundation of China [51471165]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79396]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yao, JH; Li, Y (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wang, YX,Yao, JH,Li, Y,et al. Glass formation adjacent to the intermetallic compounds in Cu-Zr binary system[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(4):605-612.
APA	Wang, YX,Yao, JH,Li, Y,&Li, Y .(2018).Glass formation adjacent to the intermetallic compounds in Cu-Zr binary system.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(4),605-612.
MLA	Wang, YX,et al."Glass formation adjacent to the intermetallic compounds in Cu-Zr binary system".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.4(2018):605-612.