Formation and Mechanical Properties of Zr-Nb-Cu-Ni-Al-Lu Bulk Glassy Alloys with Superior Glass-Forming Ability

被引：0
作者：
赵相金 [1 ]
LIU Wei [1 ]
LIU Li [1 ]
ZHANG Tao [2 ]
PANG Shujie [2 ]
MA Chaoli [2 ]
机构：
[1] School of Environment and Materials Engineering,Yantai University
[2] Department of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics
来源：
JournalofWuhanUniversityofTechnology(MaterialsScience) | 2016年 / 31卷 / 01期
关键词：
metallic glass; zirconium-based alloy; glass-forming ability; mechanical properties;
D O I：
暂无
中图分类号：
TG139.8 [];
学科分类号：
080502 ;
摘要：
Glass-forming ability（GFA） and mechanical properties of(Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)100-xLux（x= 0-3 at%） alloys have been investigated.The GFA of Zr58Nb3Cu16Ni13Al10 alloy is dramatically enhanced by adding Lu.The(Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)98Lu2 alloy possesses the highest GFA in the studied Zr-Nb-Cu-Ni-Al-Lu alloys,with its critical diameter for glass formation reaching 20 mm by copper-mould casting method,while that of the Lu-free Zr58Nb3Cu16Ni13Al10 alloy is 7 mm.The critical diameters of(Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)100-xLux（x =1 at%and 3 at%） alloys are 15 mm and 12 mm,respectively.The Lu addition to Zr58Nb3Cu16Ni13Al10 alloy induces the change of initial crystallization phases from face-centred-cubic Zr2Ni and tetragonal Zr2Ni phases for the Lu-free Zr58Nb3Cu16Ni13Al10 alloy to an icosahedral quasi-crystalline phase for the Lu-doped alloys,which may be the origin for the enhanced GFA of the Lu-doped alloys.The compressive fracture strength and plastic strain of the bulk glassy(Zr0.58Nb0.03Cu0.16Ni0.13Al0.10)98Lu2 alloy are1 610 MPa and 1.5%,respectively.
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页码：186 / 190
页数：5
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