Effect of Al Content on Phase Compositions of FeNiCoCrMo0.5Alx High Entropy Alloy

The FeCoNiCrMo0.5Alx system with x up to 2.13 was analyzed from the point of view of evolution of the phase composition and microstructure. Cast samples were synthesized by induction melting and analyzed by X-ray dif...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Anton Semikolenov, Svetlana Shalnova, Victor Klinkov, Valentina Andreeva, Maria Salynova, Tatiana Larionova, Oleg Tolochko
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	high entropy alloys σ-phase XRD phase composition microstructure hardness Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/bfb7b3fdf24347f59d5ab960f6886211
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:bfb7b3fdf24347f59d5ab960f6886211
record_format	dspace
spelling	oai:doaj.org-article:bfb7b3fdf24347f59d5ab960f68862112021-11-25T18:21:34ZEffect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy10.3390/met111117342075-4701https://doaj.org/article/bfb7b3fdf24347f59d5ab960f68862112021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1734https://doaj.org/toc/2075-4701The FeCoNiCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> system with <i>x</i> up to 2.13 was analyzed from the point of view of evolution of the phase composition and microstructure. Cast samples were synthesized by induction melting and analyzed by X-ray diffraction, energy dispersive spectroscopy, scanning electron microscopy, and Vickers microhardness test methods. Phase compositions of these alloys in dependance on Al concentration consist of FCC solid solution, σ-phase, NiAl-based B2 phase, and BCC solid solution enriched with Mo and Cr. Phase formation principles were studied. Al dissolves in a FeCoNiCrMo<sub>0.5</sub> FCC solid solution up to 8 at.%.; at higher concentrations, Al attracts Ni, removing it from FCC solid solution and forming the B2 phase. Despite Al not participating in σ-phase formation, an increase in Al concentration to about 20 at.% leads to a growth in the σ-phase fraction. The increase in the σ-phase was caused by an increase in the amount of B2 because the solubility of σ-forming Mo and Cr in B2 was less than that in the FCC solution. A further increase in Al concentration led to an excess of Mo and Cr in the solution, which formed a disordered BCC solid solution. The hardness of the alloys attained the maximum of 630 HV at 22 and 32 at.% Al.Anton SemikolenovSvetlana ShalnovaVictor KlinkovValentina AndreevaMaria SalynovaTatiana LarionovaOleg TolochkoMDPI AGarticlehigh entropy alloysσ-phaseXRDphase compositionmicrostructurehardnessMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1734, p 1734 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	high entropy alloys σ-phase XRD phase composition microstructure hardness Mining engineering. Metallurgy TN1-997
spellingShingle	high entropy alloys σ-phase XRD phase composition microstructure hardness Mining engineering. Metallurgy TN1-997 Anton Semikolenov Svetlana Shalnova Victor Klinkov Valentina Andreeva Maria Salynova Tatiana Larionova Oleg Tolochko Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy
description	The FeCoNiCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> system with <i>x</i> up to 2.13 was analyzed from the point of view of evolution of the phase composition and microstructure. Cast samples were synthesized by induction melting and analyzed by X-ray diffraction, energy dispersive spectroscopy, scanning electron microscopy, and Vickers microhardness test methods. Phase compositions of these alloys in dependance on Al concentration consist of FCC solid solution, σ-phase, NiAl-based B2 phase, and BCC solid solution enriched with Mo and Cr. Phase formation principles were studied. Al dissolves in a FeCoNiCrMo<sub>0.5</sub> FCC solid solution up to 8 at.%.; at higher concentrations, Al attracts Ni, removing it from FCC solid solution and forming the B2 phase. Despite Al not participating in σ-phase formation, an increase in Al concentration to about 20 at.% leads to a growth in the σ-phase fraction. The increase in the σ-phase was caused by an increase in the amount of B2 because the solubility of σ-forming Mo and Cr in B2 was less than that in the FCC solution. A further increase in Al concentration led to an excess of Mo and Cr in the solution, which formed a disordered BCC solid solution. The hardness of the alloys attained the maximum of 630 HV at 22 and 32 at.% Al.
format	article
author	Anton Semikolenov Svetlana Shalnova Victor Klinkov Valentina Andreeva Maria Salynova Tatiana Larionova Oleg Tolochko
author_facet	Anton Semikolenov Svetlana Shalnova Victor Klinkov Valentina Andreeva Maria Salynova Tatiana Larionova Oleg Tolochko
author_sort	Anton Semikolenov
title	Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy
title_short	Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy
title_full	Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy
title_fullStr	Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy
title_full_unstemmed	Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy
title_sort	effect of al content on phase compositions of fenicocrmo<sub>0.5</sub>al<i><sub>x</sub></i> high entropy alloy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/bfb7b3fdf24347f59d5ab960f6886211
work_keys_str_mv	AT antonsemikolenov effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy AT svetlanashalnova effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy AT victorklinkov effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy AT valentinaandreeva effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy AT mariasalynova effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy AT tatianalarionova effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy AT olegtolochko effectofalcontentonphasecompositionsoffenicocrmosub05subalisubxsubihighentropyalloy
_version_	1718411282990759936

Effect of Al Content on Phase Compositions of FeNiCoCrMo<sub>0.5</sub>Al<i><sub>x</sub></i> High Entropy Alloy

Ejemplares similares