Design of a new cobalt base nano-lamellar eutectic high entropy alloy

Vikram, RJ and Gupta, K and Suwas, S (2021) Design of a new cobalt base nano-lamellar eutectic high entropy alloy. In: Scripta Materialia, 202 .

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Abstract

Inspired by the outstanding properties of cobalt-base superalloys, an effort has been made to develop cobalt-base high entropy alloy for high temperature applications based on valance electron concentration (VEC). The newly developed cobalt-base high entropy alloy exhibited a two-phase microstructure with nano lamellar eutectic morphology. The constituent phases were identified as face centered cubic (FCC) and ordered cubic (B2) structure, which were validated through CAlculation of PHAse Diagram (CALPHAD). The newly developed HEA exhibited remarkable strain hardening behavior at room temperature as well as thermal stability in the temperature range 500�800 °C. © 2021 Acta Materialia Inc.

Item Type:	Journal Article
Publication:	Scripta Materialia
Publisher:	Acta Materialia Inc
Additional Information:	The copyright for this article belongs to Acta Materialia Inc
Keywords:	Entropy; Eutectics; High temperature applications; High-entropy alloys; Morphology; Strain hardening, Calculation of phase diagrams; Cobalt-base superalloys; Constituent phasis; Electron concentration; Face-centered cubic; Strain hardening behavior; Temperature range; Two-phase microstructures, Cobalt alloys
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	07 Oct 2021 15:55
Last Modified:	07 Oct 2021 15:55
URI:	http://eprints.iisc.ac.in/id/eprint/69653

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