Multiscale structures of Zr-based binary metallic glasses and the correlation with glass forming ability

被引：0

作者：

Xuelian Wu ^{[1
]}

Si Lan ^{[1
,2
]}

Zhenduo Wu ^{[1
,3
]}

Xiaoya Wei ^{[1
]}

Yang Ren ^{[4
]}

Ho Yin Tsang ^{[1
]}

Xunli Wang ^{[1
,3
]}

机构：

[1] Department of Physics, City University of Hong Kong

[2] Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology

[3] Center of Neutron Scattering, City University of Hong Kong Shenzhen Research Institute

[4] X-ray Science Division, Argonne National Laboratory, 9700 S

来源：

ProgressinNaturalScience:MaterialsInternational | 2017年 / 27卷 / 04期

基金：

中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;

关键词：

Metallic glasses; Glass forming ability; Densely atomic packing; Nanoscale inhomogeneity; Crystallization;

D O I：

暂无

中图分类号：

TG139.8 [];

学科分类号：

080502 ;

摘要：

Thermal behaviors and structures of three Zr-based binary glass formers, Zr;Cu;, Zr;Cu;and Zr;Ni;, were investigated and compared using differential scanning calorimetry（DSC）, transmission electron microscopy（TEM）, high energy X-ray diffraction（XRD） and small angle X-ray scattering（SAXS）. The high energy XRD results show that the bulk glass former Zr;Cu;has a denser atomic packing efficiency and reduced mediumrange order than those of marginal glass formers Zr;Cu;and Zr;Ni;. Based on TEM observations for the samples after heat treatment at 10 K above their crystallization onset temperatures, the number density of crystals for Zr;Cu;was estimated to be 10;-10;m;, which was four-orders higher than that in Zr;Cu;and Zr;Ni;metallic glasses. SAXS results indicate that Zr;Cu;has higher degree of nanoscale inhomogeneities than those in Zr;Cu;and Zr;Ni;at as-cast state. The observed multiscale structures are discussed in terms of the phase stability and glass-forming ability of Zr-based binary glass formers.

引用

页码：482 / 486

页数：5

共 40 条

[1] Z.Wang,BA.Sun,H.Y.Bai,W.H.Wang. Nat.Commun . 2014
[2] H.Wagner,D.Bedorf,S.Kuchemann,M.Schwabe,B.Zhang,W.Arnold,K.Samwer. Nat.Mater . 2011
[3] H.Tanaka. J.Phys.Condens,Matter . 1998
[4] Z.P.Lu,C.T.Liu. Acta Materialia . 2002
[5] J.C.Ye,J.Lu,C.T.Liu,Q.Wang,Y.Yang. Nat.Mater . 2010
[6] X.L.Wang,J.Almer,C.T.Liu,Y.D.Wang,J.K.Zhao,A.D.Stoica,D.R.Haeffner,W.H.Wang. Physics Review Letters . 2003
[7] S.Lan,M.Blodgett,K.F.Kelton,J.L.Ma,J.Fan,X.L.Wang. Applied Physics Letters . 2016
[8] D.Ma,A.D.Stoica,X.L.Wang. Applied Physics Letters . 2007
[9] Z.D.Wu,X.H.Lua,Z.H.Wu,H.W.Kui. Journal of Non crystalline Solids . 2014
[10] T.Ichitsubo,E.Matsubara,T.Yamamoto,H.S.Chen,N.Nishiyama,J.Saida,K.Anazawa. Physics Review Letters . 2005

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