Impact of cryogenic cycling on tracer diffusion in plastically deformed Pd40 Ni40 P20 bulk metallic glass
Hassanpour, A. and Vaidya, M. and Divinski, S.V. and Wilde, G. (2021) Impact of cryogenic cycling on tracer diffusion in plastically deformed Pd40 Ni40 P20 bulk metallic glass. Acta Materialia, 209 (116785). pp. 1-10. ISSN 13596454
Full text not available from this repository. (Request a copy)Abstract
The impact of thermo-mechanical treatment, in particular of room temperature high-pressure torsion (HPT), cold rolling and cryogenic thermo-cycling on shear band diffusion in a model Pd40Ni40P20 bulk metallic glass is investigated. Tracer diffusion measurements reveal the existence of fast short-circuit diffusion in deformed glasses and the diffusion enhancement was found to depend on the processing mode. The HPT processing imposes an extremely large shear deformation under quasi-hydrostatic conditions whereas cold rolling induces individual well-separated shear bands, though shear band diffusion is found to be faster after cold rolling. The cryogenic thermo-cycling enhances the shear band diffusion further and a conceptual explanation for the processes leading to kinetic rejuvenation is proposed. © 2021
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| Item Type: | Article | ||||
| Additional Information: | acknowledge financial support by DFG via research project WI 1899/29-1. | ||||
| Uncontrolled Keywords: | Bulk metallic glass, Cryogenic thermal cycling, Diffusion, Plastic deformation, Shear bands | ||||
| Subjects: | Others > Metallurgy Others > Metallurgy Metallurgical Engineering Materials Engineering > Materials engineering |
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| Divisions: | Department of Material Science Engineering | ||||
| Depositing User: | Mrs Haseena VKKM | ||||
| Date Deposited: | 22 Jun 2022 09:30 | ||||
| Last Modified: | 22 Jun 2022 09:30 | ||||
| URI: | http://raiithold.iith.ac.in/id/eprint/9345 | ||||
| Publisher URL: | https://doi.org/10.1016/j.actamat.2021.116785 | ||||
| OA policy: | https://v2.sherpa.ac.uk/id/publication/173 | ||||
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