Intermetallic-Rich Layer Formation for Improving Corrosion Resistance of Magnesium Alloys

D. Calderón; Y. Galindez; L. Toro; A. A. Zuleta; A. Valencia-Escobar; P. Chacón; E. Correa; F. Echeverría

doi:10.1007/s12540-020-00912-5

Intermetallic-Rich Layer Formation for Improving Corrosion Resistance of Magnesium Alloys

D. Calderón, Y. Galindez, L. Toro, A. A. Zuleta, A. Valencia-Escobar, P. Chacón, E. Correa, F. Echeverría

Materials with Impact Research Group (MAT&MPAC)

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Abstract: The present work examines the formation of a corrosion protective coating containing intermetallic phases on magnesium alloy substrates. The protective coating was formed on the surfaces of commercially pure magnesium (cp Mg) and AZ31B magnesium alloy by vacuum thermal evaporation of commercially pure aluminium (cp Al) and a subsequent heat treatment of the sample. This coating was continuous, homogenous and its microstructure was a eutectic phase composed by clusters of α-Mg surrounded by β phase (Mg₁₇Al₁₂). This eutectic-type coating provided 168 and 504 h of protection inside the salt spray chamber for the cp Mg and AZ31 alloy samples, respectively. To achieve this, it was required to deposit at least 5.5 µm of cp Al and then perform a combined thermal treatment involving heating the samples to 583 K for 60 min and then raising the temperature to 693 K for 5 min. Graphic Abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	657-665
Number of pages	9
Journal	Metals and Materials International
Volume	28
Issue number	3
DOIs	https://doi.org/10.1007/s12540-020-00912-5
State	Accepted/In press - 2021

Keywords

AZ31B magnesium alloy
Coating
Pure magnesium
Vacuum thermal evaporation
α-Mg phase
β (MgAl) phase

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A1 article - Q1

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title = "Intermetallic-Rich Layer Formation for Improving Corrosion Resistance of Magnesium Alloys",

abstract = "Abstract: The present work examines the formation of a corrosion protective coating containing intermetallic phases on magnesium alloy substrates. The protective coating was formed on the surfaces of commercially pure magnesium (cp Mg) and AZ31B magnesium alloy by vacuum thermal evaporation of commercially pure aluminium (cp Al) and a subsequent heat treatment of the sample. This coating was continuous, homogenous and its microstructure was a eutectic phase composed by clusters of α-Mg surrounded by β phase (Mg17Al12). This eutectic-type coating provided 168 and 504 h of protection inside the salt spray chamber for the cp Mg and AZ31 alloy samples, respectively. To achieve this, it was required to deposit at least 5.5 µm of cp Al and then perform a combined thermal treatment involving heating the samples to 583 K for 60 min and then raising the temperature to 693 K for 5 min. Graphic Abstract: [Figure not available: see fulltext.]",

keywords = "AZ31B magnesium alloy, Coating, Pure magnesium, Vacuum thermal evaporation, α-Mg phase, β (MgAl) phase",

author = "D. Calder{\'o}n and Y. Galindez and L. Toro and Zuleta, {A. A.} and A. Valencia-Escobar and P. Chac{\'o}n and E. Correa and F. Echeverr{\'i}a",

note = "Funding Information: The authors are grateful to Universidad de Antioquia, Universidad Pontificia Bolivariana, Universidad de Medell{\'i}n and Servicio Nacional de Aprejavascript:void(0);ndizaje – SENA. This work was supported by COLCIENCIAS [Grant Number FP44842-023-2017]. Publisher Copyright: {\textcopyright} 2021, The Korean Institute of Metals and Materials. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2021",

doi = "10.1007/s12540-020-00912-5",

language = "Ingl{\'e}s",

volume = "28",

pages = "657--665",

journal = "Metals and Materials International",

issn = "1598-9623",

publisher = "Korean Institute of Metals and Materials",

number = "3",

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TY - JOUR

T1 - Intermetallic-Rich Layer Formation for Improving Corrosion Resistance of Magnesium Alloys

AU - Calderón, D.

AU - Galindez, Y.

AU - Toro, L.

AU - Zuleta, A. A.

AU - Valencia-Escobar, A.

AU - Chacón, P.

AU - Correa, E.

AU - Echeverría, F.

N1 - Funding Information: The authors are grateful to Universidad de Antioquia, Universidad Pontificia Bolivariana, Universidad de Medellín and Servicio Nacional de Aprejavascript:void(0);ndizaje – SENA. This work was supported by COLCIENCIAS [Grant Number FP44842-023-2017]. Publisher Copyright: © 2021, The Korean Institute of Metals and Materials. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021

Y1 - 2021

N2 - Abstract: The present work examines the formation of a corrosion protective coating containing intermetallic phases on magnesium alloy substrates. The protective coating was formed on the surfaces of commercially pure magnesium (cp Mg) and AZ31B magnesium alloy by vacuum thermal evaporation of commercially pure aluminium (cp Al) and a subsequent heat treatment of the sample. This coating was continuous, homogenous and its microstructure was a eutectic phase composed by clusters of α-Mg surrounded by β phase (Mg17Al12). This eutectic-type coating provided 168 and 504 h of protection inside the salt spray chamber for the cp Mg and AZ31 alloy samples, respectively. To achieve this, it was required to deposit at least 5.5 µm of cp Al and then perform a combined thermal treatment involving heating the samples to 583 K for 60 min and then raising the temperature to 693 K for 5 min. Graphic Abstract: [Figure not available: see fulltext.]

AB - Abstract: The present work examines the formation of a corrosion protective coating containing intermetallic phases on magnesium alloy substrates. The protective coating was formed on the surfaces of commercially pure magnesium (cp Mg) and AZ31B magnesium alloy by vacuum thermal evaporation of commercially pure aluminium (cp Al) and a subsequent heat treatment of the sample. This coating was continuous, homogenous and its microstructure was a eutectic phase composed by clusters of α-Mg surrounded by β phase (Mg17Al12). This eutectic-type coating provided 168 and 504 h of protection inside the salt spray chamber for the cp Mg and AZ31 alloy samples, respectively. To achieve this, it was required to deposit at least 5.5 µm of cp Al and then perform a combined thermal treatment involving heating the samples to 583 K for 60 min and then raising the temperature to 693 K for 5 min. Graphic Abstract: [Figure not available: see fulltext.]

KW - AZ31B magnesium alloy

KW - Coating

KW - Pure magnesium

KW - Vacuum thermal evaporation

KW - α-Mg phase

KW - β (MgAl) phase

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U2 - 10.1007/s12540-020-00912-5

DO - 10.1007/s12540-020-00912-5

M3 - Artículo

AN - SCOPUS:85099310701

SN - 1598-9623

VL - 28

SP - 657

EP - 665

JO - Metals and Materials International

JF - Metals and Materials International

IS - 3

ER -

Intermetallic-Rich Layer Formation for Improving Corrosion Resistance of Magnesium Alloys

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