Corrosion of high entropy alloys

Abstract High entropy alloys represent a unique class of metal alloys, comprising nominally five or more elements in near equiatomic proportions. High entropy alloys have gained significant interest on the basis that the high configurational entropy of such alloy systems is purported to result in a...

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Autores principales:	Yao Qiu, Sebastian Thomas, Mark A. Gibson, Hamish L. Fraser, Nick Birbilis
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/e7483f2c3c0149f2bace116dabe7e392
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id	oai:doaj.org-article:e7483f2c3c0149f2bace116dabe7e392
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spelling	oai:doaj.org-article:e7483f2c3c0149f2bace116dabe7e3922021-12-02T15:18:49ZCorrosion of high entropy alloys10.1038/s41529-017-0009-y2397-2106https://doaj.org/article/e7483f2c3c0149f2bace116dabe7e3922017-08-01T00:00:00Zhttps://doi.org/10.1038/s41529-017-0009-yhttps://doaj.org/toc/2397-2106Abstract High entropy alloys represent a unique class of metal alloys, comprising nominally five or more elements in near equiatomic proportions. High entropy alloys have gained significant interest on the basis that the high configurational entropy of such alloy systems is purported to result in a single-phase solid solution structure. While such a single-phase structure can occur in unique systems, it is now appreciated that the definition of high entropy alloys can be broader, with systems comprising only four elements possible of forming single phases, and most five (or more) element systems actually being multi (>2) phases. To this end, the notion of compositionally complex alloys is a more general description, with the concise review herein focusing on the corrosion of compositionally complex alloys (inclusive of high entropy alloys). It is noted that generally, in spite of complex compositions and in many cases complicated microstructural heterogeneity, compositionally complex alloys are nominally corrosion-resistant. This is discussed and aspects of the status and needs are presented.Yao QiuSebastian ThomasMark A. GibsonHamish L. FraserNick BirbilisNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ENnpj Materials Degradation, Vol 1, Iss 1, Pp 1-18 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Yao Qiu Sebastian Thomas Mark A. Gibson Hamish L. Fraser Nick Birbilis Corrosion of high entropy alloys
description	Abstract High entropy alloys represent a unique class of metal alloys, comprising nominally five or more elements in near equiatomic proportions. High entropy alloys have gained significant interest on the basis that the high configurational entropy of such alloy systems is purported to result in a single-phase solid solution structure. While such a single-phase structure can occur in unique systems, it is now appreciated that the definition of high entropy alloys can be broader, with systems comprising only four elements possible of forming single phases, and most five (or more) element systems actually being multi (>2) phases. To this end, the notion of compositionally complex alloys is a more general description, with the concise review herein focusing on the corrosion of compositionally complex alloys (inclusive of high entropy alloys). It is noted that generally, in spite of complex compositions and in many cases complicated microstructural heterogeneity, compositionally complex alloys are nominally corrosion-resistant. This is discussed and aspects of the status and needs are presented.
format	article
author	Yao Qiu Sebastian Thomas Mark A. Gibson Hamish L. Fraser Nick Birbilis
author_facet	Yao Qiu Sebastian Thomas Mark A. Gibson Hamish L. Fraser Nick Birbilis
author_sort	Yao Qiu
title	Corrosion of high entropy alloys
title_short	Corrosion of high entropy alloys
title_full	Corrosion of high entropy alloys
title_fullStr	Corrosion of high entropy alloys
title_full_unstemmed	Corrosion of high entropy alloys
title_sort	corrosion of high entropy alloys
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e7483f2c3c0149f2bace116dabe7e392
work_keys_str_mv	AT yaoqiu corrosionofhighentropyalloys AT sebastianthomas corrosionofhighentropyalloys AT markagibson corrosionofhighentropyalloys AT hamishlfraser corrosionofhighentropyalloys AT nickbirbilis corrosionofhighentropyalloys
_version_	1718387481314852864

Corrosion of high entropy alloys

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