Deformation behavior of Ta wire-reinforced Zr-based bulk metallic glass composites  

作　　者：Sen Chen Hua-meng Fu Zheng-kun Li Long Zhang Hong-wei Zhang Zheng-wang Zhu Hong Li Ai-min Wang Yan-dong Wang Hai-feng zhang 

机构地区：[1]School of Materials Science and Engineering, NortheasternUniversity, Shenyang 110819, Liaoning, China [2]Shenyang National Laboratory for Materials Science,Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, Liaoning, China [3]Dongguan Eontec Co., Ltd., Dongguan 523662, Guangdong,China [4]Liaoning Jinyan Liquid Metal Technology Co., Ltd.,Shenyang 110100, Liaoning, China

出　　处：《Journal of Iron and Steel Research International》2018年第6期601-607,共7页

基　　金：This work was supported by the National Natural Science Foundation of China （51434008 （U1435204）, 51531005）, the China＇s Manned Space Station Project （Mission No： TGJZS00-2-RW024）, Dongguan Innovative Research Team Program （2014607134）, Shenyang Key R ＆ D and Technology Transfer Pro-gram （Z17-7-001）, Seed Fund Project of Shenyang National University Science and Technology Zone （20151019001） and Dou-ble-hundred Program of Shenyang Science and Technology Innova-tion Project （Y17-2-036）.

摘　　要：A Ta wire-reinforced Zr-based bulk metallic glass composite with a new type of structure was prepared successfully by the method of liquid metal infiltration. Ta wires distribute uniformly in the metallic glass matrix in the form of spirals. The composite exhibits two yield stages under compressive stress, and the samples are compressed into thin pancakes. The micro-cracks originate at the interface between the Ta wire and the metallic glass matrix and propagate perpendicularly to the interface, which then induce multiple shear bands in the metallic glass matrix due to the stress concentration. Shear cracks form in the metallic glass matrix during the continued loading process as a result of the interaction of shear bands. Deformation bands of Ta wires occur under the impact of shear bands. The local stress fields in the composite are changed obviously due to the introduction of the spiral-formed reinforcements. The investigation of the deformation behavior and mechanism suggests a new method for the application of bulk metallic glass composites as the structural materials.A Ta wire-reinforced Zr-based bulk metallic glass composite with a new type of structure was prepared successfully by the method of liquid metal infiltration. Ta wires distribute uniformly in the metallic glass matrix in the form of spirals. The composite exhibits two yield stages under compressive stress, and the samples are compressed into thin pancakes. The micro-cracks originate at the interface between the Ta wire and the metallic glass matrix and propagate perpendicularly to the interface, which then induce multiple shear bands in the metallic glass matrix due to the stress concentration. Shear cracks form in the metallic glass matrix during the continued loading process as a result of the interaction of shear bands. Deformation bands of Ta wires occur under the impact of shear bands. The local stress fields in the composite are changed obviously due to the introduction of the spiral-formed reinforcements. The investigation of the deformation behavior and mechanism suggests a new method for the application of bulk metallic glass composites as the structural materials.

关 键 词：Bulk metallic glass composite Ta wire SPIRAL Shear band Deformation behavior 

分 类 号：O614[理学—无机化学] TN913.3[理学—化学]