Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 24, Issue 2, Pages 121-127Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2014.03.010
Keywords
Metallic glass; Composites; Transmission electron microscopy; Ti alloys; Mechanical properties
Funding
- National Natural Science Foundation of China [51001008]
- Fundamental Research Funds for the Central Universities [FRF-MP-10-005B]
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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. (C) 2014 Chinese Materials Research Society. Production and hosting by Elsevier B.V. All rights reserved.
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