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

基金：

中国国家自然科学基金;

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(ZrNbCuNiAl)Lu(x= 0-3 at%) alloys have been investigated.The GFA of ZrNbCuNiAlalloy is dramatically enhanced by adding Lu.The(ZrNbCuNiAl)Lualloy 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 ZrNbCuNiAlalloy is 7 mm.The critical diameters of(ZrNbCuNiAl)Lu(x =1 at%and 3 at%) alloys are 15 mm and 12 mm,respectively.The Lu addition to ZrNbCuNiAlalloy induces the change of initial crystallization phases from face-centred-cubic ZrNi and tetragonal ZrNi phases for the Lu-free ZrNbCuNiAlalloy 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(ZrNbCuNiAl)Lualloy are1 610 MPa and 1.5%,respectively.

引用

页码：186 / 190

页数：5

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