Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure

Gonzalez Sanchez, Sergio, Sfikas, Athanasios, Kamnis, Spyros, Garay, Carlos, Hurtado-Macias, A. and Martínez-Sánchez, R. (2022) Wear resistant CoCrFeMnNi0.8V High Entropy Alloy with Multi Length-Scale Hierarchical Microstructure. Materials Letters. p. 133504. ISSN 0167-577X (In Press)

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Official URL: https://doi.org/10.1016/j.matlet.2022.133504


This work shows a CoCrFeMnNi0.8V high entropy alloy (HEA) with multiple length-scale hierarchical microstructure, obtained upon cooling at ∼ 62.5 K/s, consisting of a dominant globular sigma phase, FCC matrix and V-rich particles. The novel microstructure, never reported before for the CoCrFeMnNiV system, results in about a fourfold and sixfold increase of hardness and wear resistance, respectively, compared to that of CoCrFeMnNi alloy.

Item Type: Article
Additional Information: Funding information: The authors would like to acknowledge the support from the UK Research & Innovation (UKRI-IUK) national funding agency. Project Grant: 53662 ‘Design of High-Entropy Superalloys Using a Hybrid Experimental-Based Machine Learning Approach: Steel Sector Application’.
Uncontrolled Keywords: Metal and alloys, Indentation and hardness, Wear and tribology, Solidification
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: John Coen
Date Deposited: 17 Nov 2022 15:33
Last Modified: 17 Nov 2022 15:45
URI: https://nrl.northumbria.ac.uk/id/eprint/50685

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