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| Deformation behavior of Ta wire-reinforced Zr-based bulk metallic glass composites |
| Sen Chen1,2. Hua-meng Fu2,3 . Zheng-kun Li2 . Long Zhang2 . Hong-wei Zhang2,4 . Zheng-wang Zhu2 . Hong Li2 . Ai-min Wang2 . Yan-dong Wang1 . Hai-feng Zhang1,2 |
1 School of Materials Science and Engineering, Northeastern University, 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 |
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Abstract Abstract: 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 in.ltration. 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 .elds 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.
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Received: 05 December 2017
Published: 23 October 2018
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2018, Vol. 25 
