Fatigue Properties and Morphology of Fatigue Fracture of Bulk Metallic Glass

X. Y. Zhao; Z. H. Chen; H. P. Wang; J. Zhan

doi:10.1007/s11041-016-0041-5

Fatigue Properties and Morphology of Fatigue Fracture of Bulk Metallic Glass

Autores: Zhao X.Y.¹, Chen Z.H.¹, Wang H.P.², Zhan J.³
Afiliações:
1. College of Materials Science and Engineering, Hunan University
2. Zhuzhou Cemented Carbide Group Co. Ltd.
3. Modern Engineering Training Center, Hunan University
Edição: Volume 58, Nº 7-8 (2016)
Páginas: 487-492
Seção: Article
URL: https://journals.rcsi.science/0026-0673/article/view/235078
DOI: https://doi.org/10.1007/s11041-016-0041-5
ID: 235078

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Resumo

Changes in the amorphous structure and fatigue resistance of Zr_57.5Cu_27.3Al_8.5Ni_6.7 bulk metallic glass are studied. A copper-rich phase produced by cyclic stresses is discovered. This phase observed on the fracture surface may hinder crack propagation. The specimens after fatigue failure have a V shape (do not break into two completely) due to the high density of shear bands and multiple branching of the shear bands in the strained region.