Ultrafine-Grained AlCoCrFeNi2.1Eutectic High-Entropy Alloy

Wani, I S and Bhattacharjee, T and Sheikh, S and Lu, Y P and Chatterjee, Subhradeep and Bhattacharjee, Pinaki Prasad and Guo, S and Tsuji, N (2016) Ultrafine-Grained AlCoCrFeNi2.1Eutectic High-Entropy Alloy. Materials Research Letters, 4 (3). pp. 174-179. ISSN 2166-3831

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Abstract

The development of microstructure and mechanical properties was investigated in a heavily cold-rolled and annealed AlCoCrFeNi2.1 high-entropy alloy. The as-cast alloy having a eutectic morphology consisting of alternate bands of ordered L1(2) and B2 phases was 90% cold-rolled. The deformed microstructure showed profuse shear banding and disordering of the L12, but no transformation of the B2 phase. A duplex microstructure consisting of ultrafine equiaxed grains (similar to 0.60 mu m) of disordered face centered cubic and B2 was observed after annealing at 800 degrees C. The annealed material showed remarkable strength-ductility combination having ultimate tensile strength similar to 1.2 GPa and elongation to failure similar to 12%.

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IITH Creators:	IITH Creators ORCiD Bhattacharjee, Pinaki Prasad http://orcid.org/0000-0002-6422-2601 Chatterjee, Subhradeep http://orcid.org/0000-0002-4686-6593
Item Type:	Article
Uncontrolled Keywords:	High-Entropy Alloys; Ordered Phases; Cold-Rolling; Annealing; Properties
Subjects:	Materials Engineering > Materials engineering
Divisions:	Department of Material Science Engineering
Depositing User:	Team Library
Date Deposited:	04 Nov 2016 07:16
Last Modified:	31 Aug 2017 06:45
URI:	http://raiithold.iith.ac.in/id/eprint/2859
Publisher URL:	https://doi.org/10.1080/21663831.2016.1160451
OA policy:	http://www.sherpa.ac.uk/romeo/issn/2166-3831/
Related URLs:	Google Scholar

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