Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 782, Issue -, Pages 961-966Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.12.238
Keywords
Bulk metallic glass composite; Martensitic transformation; Molecular dynamics simulation; Confined compression
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Funding
- National Natural Science Foundation of China (NSFC) [51871076, 51671070, 51827802, 51671067, 51671071]
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, China [AWJ-16- Z02]
- China Scholarship Council
- German Science Foundation (DFG) [PA 2275/4-1, PA 2275/2-1]
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Here, the compressive deformation behaviors of a CuZr-based bulk metallic glass composite (BMGC) has been studied under both unconfined and confined conditions. The threshold strain for the martensitic transformation (MT) is experimentally determined to be 0.8%, and 1.9% for the unconfined and confined compression, respectively. The complicated stress state in the confined compression postpones MT of the B2 phase, which has been verified by both experiments and molecular dynamic simulation. The yielding of the B2 phase is dominated by the uniaxial compressive stress. It is expected that the obtained results can provide more insights into the deformation mechanism of BMGCs. (C) 2018 Elsevier B.V. All rights reserved.
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