Investigation of the microcrack evolution in a Ti-based bulk metallic glass matrix composite |
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| Authors: | Yongsheng Wang Zhenxi Guo Rui Ma Guojian Hao Yong Zhang Junpin Lin Manling Sui |
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| Institution: | State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing;Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology |
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| Abstract: | The initiation and evolution behavior of the shear-bands and microcracks in a Ti-based metallic-glass–matrix composite (MGMC) were investigated by using an in-situ tensile test under transmission electron microscopy (TEM). It was found that the plastic deformation of the Ti-based MGMC related with the generation of the plastic deformation zone in crystalline and shear deformation zone in glass phase near the crack tip. The dendrites can suppress the propagation of the shear band effectively. Before the rapid propagation of cracks, the extending of plastic deformation zone and shear deformation zone ahead of crack tip is the main pattern in the composite. |
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| Keywords: | Metallic glass Composites Transmission electron microscopy Ti alloys Mechanical properties |
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