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Synthesis and Mechanical Properties of Ti-Zr-Cu-Pd-Mo Amorphous Alloy Based Composites with In-situ Autogenous β-Ti Phase |
YU Sheng1, GUO Wei1,2,3(), LV Shulin1, WU Shusen1 |
1.State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China 2.Research Institute of Huazhong University of Science and Technology in Shenzhen, Shenzhen 518057, China 3.State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China |
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Cite this article:
YU Sheng, GUO Wei, LV Shulin, WU Shusen. Synthesis and Mechanical Properties of Ti-Zr-Cu-Pd-Mo Amorphous Alloy Based Composites with In-situ Autogenous β-Ti Phase. Chinese Journal of Materials Research, 2024, 38(2): 105-110.
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Abstract Ti-based amorphous alloys possess excellent properties such as low density, good biocompatibility and high corrosion resistance, which makes them one kind of promising materials used as biomedical materials. However, the room-temperature brittleness of Ti-based amorphous alloys limits their application. In order to improve the room-temperature plasticity of Ti-based amorphous alloys, the present study, a small amount of Mo (a β-Ti stabilizing element) is added to the Ti40Zr10Cu36Pd14 amorphous alloy so that the plastic β-Ti phase particles may be precipitated in-situ within the alloy during the solidification process. It is expected that in the subsequent deformation process, the plastic β-Ti phase can effectively impede the rapid propagation of the main shear band in the matrix, causing deflects, branching or multiplication of it. The multiple shear bands significantly improved the room-temperature mechanical properties. Finally, the optimal room-temperature mechanical properties were obtained for the amorphous alloy (Ti0.4Zr0.1Cu0.36Pd0.14)95Mo5 which showed the fracture strength of 2630 MPa and plastic strain of 7.3%, namely 32.0% and 508% higher than that of the base alloy, respectively.
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Received: 18 April 2023
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Fund: National Natural Science Foundation of China(52101138);Shenzhen Science and Technology Program(JCYJ20220530160813032);State Key Lab of Advanced Metals and Materials(2020-Z01);State Key Laboratory for Mechanical Behavior of Materials(20202205);Guangdong Basic and Applied Basic Research Foundation(2020A1515110531) |
Corresponding Authors:
GUO Weil, Tel: 18627710273, E-mail: weiguo@hust.edu.cn
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