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Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys

In this work, the design, microstructures and mechanical properties of five novel non-equiatomic lightweight medium entropy alloys were studied. The manufactured alloys were based on the Al(65)Cu(5)Mg(5)Si(15)Zn(5)X(5) and Al(70)Cu(5)Mg(5)Si(10)Zn(5)X(5) systems. The formation and presence of phases...

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Autores principales: Sanchez, Jon Mikel, Vicario, Iban, Albizuri, Joseba, Guraya, Teresa, Acuña, Eva Maria
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6494811/
https://www.ncbi.nlm.nih.gov/pubmed/31043686
http://dx.doi.org/10.1038/s41598-019-43329-w
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author Sanchez, Jon Mikel
Vicario, Iban
Albizuri, Joseba
Guraya, Teresa
Acuña, Eva Maria
author_facet Sanchez, Jon Mikel
Vicario, Iban
Albizuri, Joseba
Guraya, Teresa
Acuña, Eva Maria
author_sort Sanchez, Jon Mikel
collection PubMed
description In this work, the design, microstructures and mechanical properties of five novel non-equiatomic lightweight medium entropy alloys were studied. The manufactured alloys were based on the Al(65)Cu(5)Mg(5)Si(15)Zn(5)X(5) and Al(70)Cu(5)Mg(5)Si(10)Zn(5)X(5) systems. The formation and presence of phases and microstructures were studied by introducing Fe, Ni, Cr, Mn and Zr. The feasibility of CALPHAD method for the design of new alloys was studied, demonstrating to be a good approach in the design of medium entropy alloys, due to accurate prediction of the phases, which were validated via X-ray diffraction and scanning electron microscopy with energy dispersive spectroscopy. In addition, the alloys were manufactured using an industrial-scale die-casting process to make the alloys viable as engineering materials. In terms of mechanical properties, the alloys exhibited moderate plastic deformation and very high compressive strength up to 644 MPa. Finally, the reported microhardness value was in the range of 200 HV(0.1) to 264 HV(0.1), which was two to three times higher than those of commercial Al alloys.
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spelling pubmed-64948112019-05-17 Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys Sanchez, Jon Mikel Vicario, Iban Albizuri, Joseba Guraya, Teresa Acuña, Eva Maria Sci Rep Article In this work, the design, microstructures and mechanical properties of five novel non-equiatomic lightweight medium entropy alloys were studied. The manufactured alloys were based on the Al(65)Cu(5)Mg(5)Si(15)Zn(5)X(5) and Al(70)Cu(5)Mg(5)Si(10)Zn(5)X(5) systems. The formation and presence of phases and microstructures were studied by introducing Fe, Ni, Cr, Mn and Zr. The feasibility of CALPHAD method for the design of new alloys was studied, demonstrating to be a good approach in the design of medium entropy alloys, due to accurate prediction of the phases, which were validated via X-ray diffraction and scanning electron microscopy with energy dispersive spectroscopy. In addition, the alloys were manufactured using an industrial-scale die-casting process to make the alloys viable as engineering materials. In terms of mechanical properties, the alloys exhibited moderate plastic deformation and very high compressive strength up to 644 MPa. Finally, the reported microhardness value was in the range of 200 HV(0.1) to 264 HV(0.1), which was two to three times higher than those of commercial Al alloys. Nature Publishing Group UK 2019-05-01 /pmc/articles/PMC6494811/ /pubmed/31043686 http://dx.doi.org/10.1038/s41598-019-43329-w Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Sanchez, Jon Mikel
Vicario, Iban
Albizuri, Joseba
Guraya, Teresa
Acuña, Eva Maria
Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys
title Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys
title_full Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys
title_fullStr Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys
title_full_unstemmed Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys
title_short Design, Microstructure and Mechanical Properties of Cast Medium Entropy Aluminium Alloys
title_sort design, microstructure and mechanical properties of cast medium entropy aluminium alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6494811/
https://www.ncbi.nlm.nih.gov/pubmed/31043686
http://dx.doi.org/10.1038/s41598-019-43329-w
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