Effect of plasma electrolytic oxidation treatment on the mechanical properties of a Zr-Cu-Ni-Ti-Al bulk metallic glass

被引：9
作者：
Chen, Shuangshuang [1 ,2 ,3 ]
Wu, Jiajia [1 ,2 ]
Tu, Jianxin [1 ,2 ]
Wang, Hairui [1 ,2 ,3 ]
Xiong, Xinbo [1 ,2 ]
Hu, Qiang [1 ,2 ,3 ]
Zou, Jizhao [1 ,2 ]
Zeng, Xierong [1 ,2 ,4 ]
机构：
[1] Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China
[2] Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen Engn Lab Adv Technol Ceram, Shenzhen 518060, Peoples R China
[3] Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China
[4] JANUS Dongguan Precis Components Co Ltd, Guangzhou, Guangdong, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 672卷
关键词：
Bulk metallic glass; Plasma electrolytic oxidation; Plasticity; Shear bands; RESIDUAL-STRESS; THIN-FILMS; ENHANCED PLASTICITY; MATRIX COMPOSITES; FORMING ABILITY; COATINGS; FRACTURE; ALLOY; TOUGHNESS;
D O I：
10.1016/j.msea.2016.06.068
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this study, the effect of plasma electrolytic oxidation (PEO) treatment on the mechanical properties of a Zr52.5Cu25Ni9.5Ti6Al7 BMG was investigated by compression test. It was found that the PEO treatment can improve the room-temperature plasticity. After 30 min treatment, the plastic strain of BMG increases from 2.5% to 6.2%. The results indicated that the in-situ formed PEO coating can not only act as physical constraint to consume the kinetic energy of the propagating shear band, but also can introduce nucleation sites for shear bands due to stress concentration and compositional inhomogeneity. The present results provide a promising method to enhance the plasticity of BMGs through surface PEO treatment. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：32 / 39
页数：8
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