Plasticity improvement of(Cu_(43)Zr_(48)Al_(9))_(98)Y_(2)bulk metallic glass composites by dispersed Ta particles

作     者：Ke Yang Bing Li Xin Wang Xin-hui Fan Ke Yang;Bing Li;Xin Wang;Xin-hui Fan

作者机构：School of Materials Science and Chemical EngineeringXi'an Technological UniversityXi'an 710021China 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2022年第19卷第3期

页      面：275-280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 President Fund of Xi'an Technological University(Grant No.0852-302021407) 

主　　题：bulk metallic glass composites Ta particles mechanical properties microstructure 

摘      要：(Cu_(43)Zr_(48)Al_(9))_(98)Y_(2)-based bulk metallic glass composites(BMGCs)with dispersed Ta particles(3vol.%,6vol.%,9vol.%)were successfully fabricated through suction *** thermal properties,microstructure,and mechanical properties of the BMGCs were systematically *** particles are homogeneously dispersed in the amorphous *** particle reinforced BMGCs exhibit similar thermal properties and glass-forming ability with the Cu_(43)Zr_(48)Al_(9))_(98)Y_(2)base *** test results show that the BMGC with 9vol.%Ta particles has superior mechanical performance with up to 15.7%compressive plastic strain,2,216 MPa yield strength,and 2,260 MPa fracture strength at room *** homogeneously distributed Ta particles act as discrete obstacles in the amorphous matrix,restricting the highly localized shear *** results in the formation of multiple shear bands around the Ta-rich particles,which lowers the stress concentration,allowing the shear band to propagate further and improve plasticity.