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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.
2018-04-01
发表期刊JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
卷号34期号:4页码:605-612
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.
部门归属[wang, yinxiao ; yao, jiahao ; li, yi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china
关键词Bulk Metallic-glass Amorphous-alloys Forming Ability Thermodynamics Kinetics Liquid Transition Rates
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China [51471165]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79396
专题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.
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