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

作     者：Yong-jiang Huang Peng Xue Xiang Cheng Ya-ming Wang Fu-yang Cao Zhi-liang Ning Jian-fei Sun 

作者机构：State Key I.aboratory of Advanced Welding and JoiningHarbin Institute of TechnologyHarbin 150001HeilongjiangChina School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Key Laboratory of Micro-systems and Micro structures Manufacturing(Harbin Institute of Technology)Ministry of EducationHarbin 150001HeilongjiangChina Institute for Advanced CeramicsHarbin Institute of TechnologyHarbin 150001HeilongjiangChina 

出 版 物：《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)

年 卷 期：2017年第24卷第4期

页      面：416-420页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the financial support from the National Natural Science Foundation of China(Grant Nos.51371065,51671070,51671067,51671071) the Opening Funding of AWJ-16-Z02 in the State Key Laboratory of Advanced Welding and Joining,China 

主　　题：Bulk metallic glass Micro arc oxidation Plasticity Surface modification Shear band 

摘      要：Mciro-arc oxidation（MAO）was used to coat porous films on the surface of a Zr-based bulk metallic glass *** 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 *** 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 *** obtained results demonstrated that MAO can be considered as an effective method to finely tune the mechanical performance of monolithic bulk metallic glasses.