Enhanced heterogeneity and plasticity in a Zr-Cu-Al bulk metallic glass with micro-addition of oxygen

被引：23
|
作者：
Wang, Tuo [1 ,2 ]
Hou, Qiqi [1 ]
Zhang, Lianshun [1 ]
机构：
[1] Xinjiang Univ, Xinjiang Key Lab Solid State Phys & Devices, Urumqi 830046, Xinjiang, Peoples R China
[2] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Xinjiang, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2022年 / 831卷
关键词：
Bulk metallic glass; Plasticity; Microstructure; Crystallization; PHASE-SEPARATION; EMBRITTLEMENT; STRENGTH; BEHAVIOR;
D O I：
10.1016/j.msea.2021.142222
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this work, the effect of the addition of oxygen on the plasticity of a Zr60Cu25Al15 bulk metallic glass (BMG) was discussed. It has been shown that the plasticity of Zr60Cu25Al15 BMG can be enhanced through the addition of 0.25% of O. The glass forming ability and plasticity will deteriorate with an addition of 0.5% and 0.75% of O. The underlying mechanism of the improved plasticity has been clarified as a heterogeneous Cu-rich amorphous phase and the decrease of plasticity is caused by partial crystallization when there is an excess addition of O.
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页数：8
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