Bojjawar, G and Suwas, S and Chokshi, AH (2022) Influence of Co content on the simultaneous enhancement of strength and ductility in severely drawn textured Ni-Co microwires. In: Philosophical Magazine Letters .
Full text not available from this repository.Abstract
This study examines the deformation behaviour of Ni-Co microwires exhibiting high strengths and ductility, where the addition of Co is intended to decrease the stacking fault energy. A reduction in stacking fault energy is likely to retard the recovery processes, refine grain size and enhance strain hardening by dislocation interactions at twin boundaries. Microwires were drawn to a strain of 5.88, from annealed Ni-Co alloys with Co content varying from 30 to 60 wt. Subsequent tensile testing revealed a simultaneous increase in strength and ductility with an increase in Co content. The enhanced strength is a consequence of the finer grain size with an increase in Co, and the larger ductility is related to a combination of greater strain hardening and a higher strain rate sensitivity with an increase in Co. The textured drawn Ni-Co wires exhibited higher strengths than those obtained by severe plastic deformation with comparable grain sizes.
| Item Type: | Journal Article |
|---|---|
| Publication: | Philosophical Magazine Letters |
| Publisher: | Taylor and Francis Ltd. |
| Additional Information: | The copyright for this article belongs to Taylor and Francis Ltd. |
| Keywords: | Binary alloys; Cobalt alloys; Ductility; Grain size and shape; Nickel alloys; Plastic deformation; Strain hardening; Strain rate; Tensile testing; Textures, Co content; Deformation behavior; Fault energy; Grainsize; Microwire; Ni-co microwire; Severe plastic deformations; Stacking fault energy; Strength; Strength and ductilities, Stacking faults |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 31 Oct 2022 09:07 |
| Last Modified: | 31 Oct 2022 09:07 |
| URI: | https://eprints.iisc.ac.in/id/eprint/77663 |
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