Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH

Al-based alloys named M1, M2, M3, M4, and M5 doped with different atomic percentage (at%) of cobalt and manganese as cast and submitted at two heat treatments (600°C and 1100°C) were analyzed by using electrochemical techniques to evaluate their corrosion resistance immersed in 3 M KOH. With the hea...

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Autores principales:	J. G. Pereyra-Hernández, I. Rosales-Cadena, R. Guardián-Tapia, J. G. González-Rodríguez, R. López-Sesenes
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/85d2163549be4658907bd68a6a40a51c
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spelling	oai:doaj.org-article:85d2163549be4658907bd68a6a40a51c2021-11-15T01:20:12ZHeat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH1687-933310.1155/2021/3458957https://doaj.org/article/85d2163549be4658907bd68a6a40a51c2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/3458957https://doaj.org/toc/1687-9333Al-based alloys named M1, M2, M3, M4, and M5 doped with different atomic percentage (at%) of cobalt and manganese as cast and submitted at two heat treatments (600°C and 1100°C) were analyzed by using electrochemical techniques to evaluate their corrosion resistance immersed in 3 M KOH. With the heat treatments applied to the alloys, the sample M2 (65% Al, 20% Co, and 15% Mn) observed the highest corrosion resistance with Rp values of 3.0×102, 6.2×102, and 1.61×103 Ω·cm2 as cast, 600°C, and 1100°C, respectively. The latter was in agreement with the Icorr calculated from the polarization curves where the values decrease based on the heat treatment applied as follows: 1.60×103>6.16×102>3.07×102 mA/cm2 for 1100, 600, and as cast, respectively. Co concentration above 20% increases the corrosion current (Icorr) and decreases the polarization resistance of the remain samples. The chemical analysis done with EDS and X-ray diffraction made confirmed the presence of compounds such as CoAl, Co2Al5, Co2Al9, MnAl4, and MnAl6.J. G. Pereyra-HernándezI. Rosales-CadenaR. Guardián-TapiaJ. G. González-RodríguezR. López-SesenesHindawi LimitedarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ENInternational Journal of Corrosion, Vol 2021 (2021)
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 J. G. Pereyra-Hernández I. Rosales-Cadena R. Guardián-Tapia J. G. González-Rodríguez R. López-Sesenes Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH
description	Al-based alloys named M1, M2, M3, M4, and M5 doped with different atomic percentage (at%) of cobalt and manganese as cast and submitted at two heat treatments (600°C and 1100°C) were analyzed by using electrochemical techniques to evaluate their corrosion resistance immersed in 3 M KOH. With the heat treatments applied to the alloys, the sample M2 (65% Al, 20% Co, and 15% Mn) observed the highest corrosion resistance with Rp values of 3.0×102, 6.2×102, and 1.61×103 Ω·cm2 as cast, 600°C, and 1100°C, respectively. The latter was in agreement with the Icorr calculated from the polarization curves where the values decrease based on the heat treatment applied as follows: 1.60×103>6.16×102>3.07×102 mA/cm2 for 1100, 600, and as cast, respectively. Co concentration above 20% increases the corrosion current (Icorr) and decreases the polarization resistance of the remain samples. The chemical analysis done with EDS and X-ray diffraction made confirmed the presence of compounds such as CoAl, Co2Al5, Co2Al9, MnAl4, and MnAl6.
format	article
author	J. G. Pereyra-Hernández I. Rosales-Cadena R. Guardián-Tapia J. G. González-Rodríguez R. López-Sesenes
author_facet	J. G. Pereyra-Hernández I. Rosales-Cadena R. Guardián-Tapia J. G. González-Rodríguez R. López-Sesenes
author_sort	J. G. Pereyra-Hernández
title	Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH
title_short	Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH
title_full	Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH
title_fullStr	Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH
title_full_unstemmed	Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH
title_sort	heat treatment effect in the corrosion resistance of the al-co-mn alloys immersed in 3 m koh
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/85d2163549be4658907bd68a6a40a51c
work_keys_str_mv	AT jgpereyrahernandez heattreatmenteffectinthecorrosionresistanceofthealcomnalloysimmersedin3mkoh AT irosalescadena heattreatmenteffectinthecorrosionresistanceofthealcomnalloysimmersedin3mkoh AT rguardiantapia heattreatmenteffectinthecorrosionresistanceofthealcomnalloysimmersedin3mkoh AT jggonzalezrodriguez heattreatmenteffectinthecorrosionresistanceofthealcomnalloysimmersedin3mkoh AT rlopezsesenes heattreatmenteffectinthecorrosionresistanceofthealcomnalloysimmersedin3mkoh
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Heat Treatment Effect in the Corrosion Resistance of the Al-Co-Mn Alloys Immersed in 3 M KOH

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