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Failure mode transition of Zr-based bulk metallic glass
Ceng F(曾繁); Dai LH(戴兰宏)
Source Publication13th International Conference on Fracture 2013, ICF 2013
Conference Name13th International Conference on Fracture 2013, ICF 2013
Conference DateJune 16, 2013 - June 21, 2013
Conference PlaceBeijing, China
AbstractZr41.2Ti13.8Cu10Ni12.5Be22.5(Vit 1) bulk metallic glass (BMGs) exhibits different failure modes under low strain rate (10-4s-1) and high strain rate (103s-1) uniaxial compression at room temperature. Quasistatically deformed samples often fail along one dominant shear band and fracture into two large millimeter-scale blocks, whereas at impulsive loading, the samples usually break into many small scale fragments with rough fracture surfaces, such as non-uniformly distributed vein patterns and micro multiple shear bands (network-like shear bands). A theoretical model that takes into account the balance between the energy dissipation within shear band and the stored energy released in the vicinity of the shear band to fuel shear localization is developed. Furthermore, the underlying mechanisms of one dominant shear band and network-like multiple shear bands controlling the failure mode transition are revealed. Copyright © (2013) by International Conference on Fracture.
KeywordBeryllium alloys Compression testing Copper alloys Energy dissipation Failure modes Fracture Glass Glass transition Shear bands Strain rate Titanium alloys Zirconium alloys Bulk metallic glass Failure mode transition Impulsive loading Multiple shear bands Shear localizations Theoretical modeling Uni axial compression Zr based bulk metallic glass
Indexed ByEI
Document Type会议论文
AffiliationState Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
Recommended Citation
GB/T 7714
Ceng F,Dai LH. Failure mode transition of Zr-based bulk metallic glass[C]13th International Conference on Fracture 2013, ICF 2013,2013:5762-5767.
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