Plasticityimprovement of a Zr-based bulk metallic glass by micro-arc oxidation

被引：0

作者：

Yongjiang Huang ^{[1
,2
,3
]}

Peng Xue ^{[2
]}

Xiang Cheng ^{[2
]}

Yaming Wang ^{[4
]}

Fuyang Cao ^{[2
]}

Zhiliang Ning ^{[2
]}

Jianfei Sun ^{[1
,2
]}

机构：

[1] State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology

[2] School of Materials Science and Engineering,Harbin Institute of Technology

[3] Key Laboratory of Micro-systems and Micro-structures Manufacturing(Harbin Institute of Technology),Ministry of Education

[4] Institute for Advanced Ceramics,Harbin Institute of Technology

来源：

JournalofIronandSteelResearch(International) | 2017年 / 24卷 / 04期

关键词：

Bulk metallic glass; Micro-arc oxidation; Plasticity; Surface modification; Shear band;

D O I：

暂无

中图分类号：

TG139.8 [];

学科分类号：

080502 ;

摘要：

Mciro-arc oxidation(MAO)was used to coat porous films on the surface of a Zr-based bulk metallic glass sample.The compressive test results indicated that,compared with the as-cast sample,the MAO treated one exhibited higher deformation capacity,associated with multiple shear bands with higher density on the side surface and well-developed vein patterns with smaller size on the fractured surface.The pore in the MAOed film and the matrix/coating interface initiated the shear bands and impeded the rapid propagation of shear bands,thus favoring the enhanced plasticity of the MAO treated sample.The obtained results demonstrated that MAO can be considered as an effective method to finely tune the mechanical performance of monolithic bulk metallic glasses.

引用

页码：416 / 420

页数：5

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