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Ductility enhancement strategies in bulk metallic glasses: Insights from finite element simulations

Narasimhan, R and Singh, I and Shete, M (2017) Ductility enhancement strategies in bulk metallic glasses: Insights from finite element simulations. In: 14th International Conference on Fracture, ICF 2017, 18 - 20 June 2017, Rhodes, pp. 239-240.

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Official URL: https://doi.org/10.1103/PhysRevLett.84.2901


The lack of tensile ductility in bulk metallic glasses (BMGs) has severely impeded their structural applications. Two important BMG architectures that have been developed to improve ductility are bulk metallic glass composites (BMGCs) and nanoglasses (NGs). In this work, continuum analyses of tensile loading on BMGCs and NGs are performed to gain insights on their tensile deformation response. The results show that high hardening elongated dendrites with substantial volume fraction would make the BMGC ductile without any loss of strength. Also, grains size with respect to intrinsic material length associated with interaction stress between flow defects governs the deformation response in NGs.

Item Type: Conference Paper
Publication: ICF 2017 - 14th International Conference on Fracture
Publisher: International Conference on Fracture
Additional Information: The copyright for this article belongs to International Conference on Fracture.
Keywords: Deformation; Ductility; Finite element method; Glass; Nanoglass, Bulk metallic glass; Bulk metallic glass composites; Continuum analysis; Deformation response; Ductility enhancement; Finite element simulations; Structural applications; Tensile deformation, Metallic glass
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 18 Jul 2022 05:02
Last Modified: 18 Jul 2022 05:02
URI: https://eprints.iisc.ac.in/id/eprint/74631

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