High tensile plasticity and strength of a CuZr-based bulk metallic glass composite

被引：61
|
作者：
Ning, Zhiliang [1 ]
Liang, Weizhong [2 ]
Zhang, Mingxing [3 ]
Li, Zongze [2 ]
Sun, Haichao [1 ]
Liu, Ailian [2 ]
Sun, Jianfei [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Heilongjiang Univ Sci & Technol, Harbin 150022, Peoples R China
[3] Univ Queensland, Sch Mech & Min Engn, St Lucia, Qld 4072, Australia
来源：
MATERIALS & DESIGN | 2016年 / 90卷
关键词：
Bulk metallic glass; Composite; Martensitic transformation mediated plasticity; Tensile properties; MECHANICAL-PROPERTIES; MATRIX COMPOSITES; FORMING ABILITY; PHASE-FORMATION; DUCTILITY; STRAIN;
D O I：
10.1016/j.matdes.2015.10.117
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new approach to improve the tensile ductility of CuZr-based bulkmetallic glasseswithout significant reduction in high strength is reported. After doping of Nb into CuZr-based alloy, a compositewas formedwith a combination of high strength, large tensile plasticity and strong work-hardening effect. The addition of Nb led to a uniform distribution of single B2-CuZr phase in the glassy matrix. The optimal tensile propertieswere attributed to the deformationinducedmartensitic transformation of the B2-CuZr phase, which in turn interacted with the glassy matrix. In addition, the drastic adiabatic heating on the fracture region also contributed to the increase in tensile plasticity. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：145 / 150
页数：6
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