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
发表期刊稀有金属材料与工程
ISSN1002-185X
卷号44期号:4页码:791-795
摘要Cu_(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.
关键词bulk amorphous alloy glass forming ability mechanical properties critical cooling rate
收录类别CSCD
语种英语
WOS研究方向Metallurgy & Metallurgical Engineering
WOS类目METALLURGY METALLURGICAL ENGINEERING
CSCD记录号CSCD:5415379
出版者Science Press
EI入藏号20152100862787
EI分类号531 Metallurgy and Metallography - 531.2 Metallography - 541.1 Aluminum - 541.2 Aluminum Alloys - 544.1 Copper - 544.2 Copper Alloys - 549.1 Alkali Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 641.2 Heat Transfer - 802.3 Chemical Operations - 812.3 Glass - 951 Materials Science
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文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/70508
专题材料科学与工程学院
作者单位Lanzhou University of Technology, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou, Gansu 730050, China
第一作者单位兰州理工大学
第一作者的第一单位兰州理工大学
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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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