Synthesis of fecrvnbmn high entropy alloy by mechanical alloying and study of their microstructure and mechanical properties

Ajay Kumar, P and Perugu, CS (2018) Synthesis of fecrvnbmn high entropy alloy by mechanical alloying and study of their microstructure and mechanical properties. In: 147th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society, TMS 2018, 11 - 15 March 2018, Phoenix, pp. 669-675.

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Abstract

Traditional alloys are designed on the basis of one or more majority of materials which is Fe-based, Ni-based, and Co-based super alloy for mechanical properties enhancement but results with poor ductility at room temperature. New alloy design of materials requires more alloying elements for improving the material properties consistently. High entropy alloy consists of at least five principal elements with the concentration of each material between 5 and 35 at.% on the basis of maximum configurational entropy at equi-atomic composition with more stable than intermetallic at elevated temperatures. In this paper, FeCrNbVMn alloy phase formed by mechanical alloying. The mechanically alloyed powders were subsequently consolidated by cold pressing and sintered in tube furnace. Analysis of microstructure and mechanical properties were carried out with the help of XRD, SEM, TEM and nanoindetation tests. The bulk sample showed hardness of ∼19 GPa at nano scale.

Item Type:	Conference Paper
Publication:	Minerals, Metals and Materials Series
Publisher:	Springer International Publishing
Additional Information:	The copyright for this article belongs to the Minerals, Metals & Materials Society.
Keywords:	Alloying elements; Chromium alloys; Entropy; High resolution transmission electron microscopy; Iron alloys; Manganese alloys; Mechanical alloying; Mechanical properties; Microstructure; Nanotechnology; Niobium alloys; Scanning electron microscopy; Transmission electron microscopy; Vanadium alloys, Atomic compositions; Cold pressing; Configurational entropy; Elevated temperature; High entropy alloys; Mechanical properties enhancements; Mechanically alloyed powder; Microstructure and mechanical properties, Cobalt alloys
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	22 Aug 2022 05:03
Last Modified:	22 Aug 2022 05:03
URI:	https://eprints.iisc.ac.in/id/eprint/76103

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