期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 136, 期 1, 页码 75-79出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2012.06.033
关键词
Amorphous materials; Mechanical test; Deformation; Fracture
资金
- National Natural Science Foundation of China [51101110]
- Key Laboratory of Cryogenics, TIPC, CAS [CRYO201107]
- State Key Lab of Advanced Metals and Materials [2011-Z06]
- National Science Foundations [DMR-0909037, CMMI-0900271, CMMI-1100080]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1100080] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [909037] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0900271] Funding Source: National Science Foundation
Analysis of energy dissipation during shear-banding aids to understand plastic deformations of bulk metallic glasses (BMGs). For Zr55Al10Ni5Cu30 BMGs at 298 K. multi-step shearing is proposed, and the thermal energy during serrations cannot result in a temperature rise (Delta T) higher than T-m. At 77 K, N-step shearing is supposed. When N is in the range of 24-47, it is reasonable to deduce the resulting temperature from 0.8T(g) to T-m, accompanied by a continuous plastic deformation. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
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