Effect of crystallization on the deformation behavior of a Zr-based bulk metallic glass

被引：5
|
作者：
Lendvai, Janos [2 ]
Gubicza, Jeno [2 ]
Labar, Janos L. [1 ,2 ]
Kuli, Zoltan [2 ]
机构：
[1] Res Inst Tech Phys & Mat Sci, Budapest, Hungary
[2] Eotvos Lorand Univ, Dept Mat Phys, Budapest, Hungary
来源：
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2009年 / 100卷 / 03期
关键词：
Metallic glass; Quasicrystal; Indentation creep; Viscosity; Strength; VISCOSITY; RELAXATION; ALLOYS;
D O I：
10.3139/146.110053
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The crystallization process in a Zr-based bulk metallic glass with the composition Zr(44)Ti(11)Cu(10)Ni(10)Be(25) was studied during isothermal annealing above the glass transition temperature at 682 K. Indentation creep tests were applied to study the effect of crystallization on the viscosity. It was found that the increase in viscosity during crystalization is primarily caused by the hard crystalline grains and secondarily by the change of the chemical composition of maining liquid phase. The deformation behavior at room temperature is studied by three-point bending tests. The strength of the specimens decreases significantly in the first step of the crystallization process.
引用
收藏
页码：439 / 442
页数：4
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