Glass Forming Ability and Mechanical Properties of Cu-Zr- Al-Nb Amorphous Alloy
Zhao Yanchun; Kou Shengzhong; Yuan Xiaopeng; Li Chunyan; Yu Peng; Pu Yongliang; Xu Jiao
2015
Source Publication稀有金属材料与工程
ISSN1002-185X
Volume44Issue:4Pages:791-795
AbstractCu_(46)Zr_(44)Al_5Nb_5 amorphous alloys were fabricated by suspend melting under an argon atmosphere using water-cooled Cu mould suction casting. Glass forming ability and mechanical properties of the alloys were studied. The analyses of DSC curves, X-ray diffraction (XRD) patterns and electron diffraction taken from the rods of Cu_(46)Zr_(44)Al_5Nb_5 with different diameters (3, 4, 6 mm) indicate that the critical diameter can be up to 6 mm at least. And the best glass former exhibits an undercooled liquid region DeltaT of 52 K, and reduced glass transition temperature T_(rg) of 0.60. The critical cooling rate (R_c) calculated from TTT (Time-Temperature-Transformation) curves of Cu_(46)Zr_(44)Al_5Nb_5 forming glassy alloy is 3.985 K/s. The intensity of broad peaks from X-ray diffraction patterns, the crystallization enthalpy and the fracture strength of the amorphous rods with different diameters, exhibit obvious difference, which is related to the variation of the cooling rate of solidification for the rods with different size.
Keywordbulk amorphous alloy glass forming ability mechanical properties critical cooling rate
Indexed ByCSCD
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMETALLURGY METALLURGICAL ENGINEERING
CSCD IDCSCD:5415379
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/70508
Collection材料科学与工程学院
AffiliationLanzhou University of Technology, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou, Gansu 730050, China
First Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
Recommended Citation
GB/T 7714
Zhao Yanchun,Kou Shengzhong,Yuan Xiaopeng,et al. Glass Forming Ability and Mechanical Properties of Cu-Zr- Al-Nb Amorphous Alloy[J]. 稀有金属材料与工程,2015,44(4):791-795.
APA Zhao Yanchun.,Kou Shengzhong.,Yuan Xiaopeng.,Li Chunyan.,Yu Peng.,...&Xu Jiao.(2015).Glass Forming Ability and Mechanical Properties of Cu-Zr- Al-Nb Amorphous Alloy.稀有金属材料与工程,44(4),791-795.
MLA Zhao Yanchun,et al."Glass Forming Ability and Mechanical Properties of Cu-Zr- Al-Nb Amorphous Alloy".稀有金属材料与工程 44.4(2015):791-795.
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