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Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties

Novel aluminium matrix composites have been fabricated using a powder metallurgy route with reinforcement phase particles of high entropy alloy (HEA) consisting of third transition metals. These new composites are studied as far as their microstructure (SEM, XRD), basic mechanical properties (hardne...

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Autores principales: Ananiadis, Elias A., Karantzalis, Alexandros E., Sfikas, Athanasios K., Georgatis, Emmanuel, Matikas, Theodore E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419924/
https://www.ncbi.nlm.nih.gov/pubmed/37570195
http://dx.doi.org/10.3390/ma16155491
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author Ananiadis, Elias A.
Karantzalis, Alexandros E.
Sfikas, Athanasios K.
Georgatis, Emmanuel
Matikas, Theodore E.
author_facet Ananiadis, Elias A.
Karantzalis, Alexandros E.
Sfikas, Athanasios K.
Georgatis, Emmanuel
Matikas, Theodore E.
author_sort Ananiadis, Elias A.
collection PubMed
description Novel aluminium matrix composites have been fabricated using a powder metallurgy route with reinforcement phase particles of high entropy alloy (HEA) consisting of third transition metals. These new composites are studied as far as their microstructure (SEM, XRD), basic mechanical properties (hardness, elastic modulus) and creep response using nanoindentation techniques are concerned. Wear (sliding wear tests) and corrosion behaviour (in 3.5 wt.% NaCl environment) were also assessed. It was observed that, microstructurally, no secondary intermetallic phases were formed. Hardness and wear resistance seemed to increase with the increase in HEA particles, and in terms of corrosion, the composites exhibited susceptibility to localised forms. Nanoindentation techniques and creep response showed findings that are connected with the deformation nature of both the Al matrix and the HEA reinforcing phase.
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spelling pubmed-104199242023-08-12 Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties Ananiadis, Elias A. Karantzalis, Alexandros E. Sfikas, Athanasios K. Georgatis, Emmanuel Matikas, Theodore E. Materials (Basel) Article Novel aluminium matrix composites have been fabricated using a powder metallurgy route with reinforcement phase particles of high entropy alloy (HEA) consisting of third transition metals. These new composites are studied as far as their microstructure (SEM, XRD), basic mechanical properties (hardness, elastic modulus) and creep response using nanoindentation techniques are concerned. Wear (sliding wear tests) and corrosion behaviour (in 3.5 wt.% NaCl environment) were also assessed. It was observed that, microstructurally, no secondary intermetallic phases were formed. Hardness and wear resistance seemed to increase with the increase in HEA particles, and in terms of corrosion, the composites exhibited susceptibility to localised forms. Nanoindentation techniques and creep response showed findings that are connected with the deformation nature of both the Al matrix and the HEA reinforcing phase. MDPI 2023-08-06 /pmc/articles/PMC10419924/ /pubmed/37570195 http://dx.doi.org/10.3390/ma16155491 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ananiadis, Elias A.
Karantzalis, Alexandros E.
Sfikas, Athanasios K.
Georgatis, Emmanuel
Matikas, Theodore E.
Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties
title Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties
title_full Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties
title_fullStr Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties
title_full_unstemmed Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties
title_short Aluminium Matrix Composites Reinforced with AlCrFeMnNi HEA Particulates: Microstructure, Mechanical and Corrosion Properties
title_sort aluminium matrix composites reinforced with alcrfemnni hea particulates: microstructure, mechanical and corrosion properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10419924/
https://www.ncbi.nlm.nih.gov/pubmed/37570195
http://dx.doi.org/10.3390/ma16155491
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