Failure mode transition of Zr-based bulk metallic glass

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	Failure mode transition of Zr-based bulk metallic glass
	Ceng F(曾繁); Dai LH(戴兰宏)
会议录名称	13th International Conference on Fracture 2013, ICF 2013
	2013
页码	5762-5767
会议名称	13th International Conference on Fracture 2013, ICF 2013
会议日期	June 16, 2013 - June 21, 2013
会议地点	Beijing, China
摘要	Zr41.2Ti13.8Cu10Ni12.5Be22.5(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.
关键词	Beryllium 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
ISBN号	9781629933696
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77979
专题	非线性力学国家重点实验室
作者单位	State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
推荐引用方式 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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