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Engineering an ultrafine intermetallic eutectic ternary alloy for high strength and high temperature applications

Tiwary, Chandra Sekhar and Kashiwar, Ankush and Bhowmick, Sanjit and Kumar, KC Hari and Chattopadhyay, Kamanio and Banerjee, Dipankar (2018) Engineering an ultrafine intermetallic eutectic ternary alloy for high strength and high temperature applications. In: SCRIPTA MATERIALIA, 157 . pp. 67-71.

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Official URL: http://dx.doi.org/10.1016/j.scriptamat.2018.07.036

Abstract

We introduce a novel material based on microstructural engineering of intermetallics at an ultrafine scale. A unique microstructure was developed in a ternary alloy composition (Ni-12 at.% Al-11 at.% Zr) containing two coupled intermetallic phases (Ni3Al and Ni5Zr) consisting of colonies with interconnected lamellae that degenerate into irregular morphologies during growth. This architecture exhibits excellent high temperature microstructural stability, exceptional high strength with adequate tensile ductility at room temperature, and outstanding cyclic oxidation resistance. (C) 2018 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belong to PERGAMON-ELSEVIER SCIENCE LTD
Keywords: Intermetallic eutectics; Phase equilibria; Microstructure; Mechanical properties; Oxidation
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 29 Oct 2018 15:32
Last Modified: 29 Oct 2018 15:32
URI: http://eprints.iisc.ac.in/id/eprint/60973

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