Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys

Financial support from the project ADITIMAT-CM S2018/NMT-4411 funded by the Madrid Regional Government is gratefully acknowledged. The research leading to these results has also received funding from the Spanish State Research Agency under the project RTI2018-096391-B-C31, which is also acknowledged...

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Autores: Pulido-González, N, Hidalgo-Manrique, P, García-Rodríguez, S, Torres, B, Rams, J
Tipo de documento: artigo
Data de publicação:2021
País:España
Recursos:Universidad Rey Juan Carlos
Repositório:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/27727
Acesso em linha:https://hdl.handle.net/10115/27727
Access Level:Acceso aberto
Palavra-chave:Magnesium alloys
Biodegradable implants
Heat treatment
Microstructure
Mechanical properties
Corrosion
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spelling Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloysPulido-González, NHidalgo-Manrique, PGarcía-Rodríguez, STorres, BRams, JMagnesium alloysBiodegradable implantsHeat treatmentMicrostructureMechanical propertiesCorrosionFinancial support from the project ADITIMAT-CM S2018/NMT-4411 funded by the Madrid Regional Government is gratefully acknowledged. The research leading to these results has also received funding from the Spanish State Research Agency under the project RTI2018-096391-B-C31, which is also acknowledged. One of the authors (N. Pulido-González) thanks the Spanish Ministry of Education, Culture and Sports for a FPU fellowship. Thanks also to M. Tinoco-Rivas, from the CNME, for assistance with TEM.The effect of heat treatment on the mechanical and biocorrosion behaviour of the Mg-1 wt.% Zn- 1 wt.% Ca (ZX11) and Mg-3 wt.% Zn-0.4 wt.% Ca (ZX30) alloys was evaluated. For this purpose, the as-cast alloys were solution-treated, quenched and aged. Furthermore, three-point bending tests as well as electrochemical and immersion tests in Hank’s solution were performed on both alloys in four different thermal conditions: as-cast, solution-treated, peak-aged and over-aged. Microstructural examinations revealed that the as-cast ZX11 and ZX30 alloys exhibit a microstructure composed of α-Mg grains separated by large Mg2Ca and Ca2Mg6Zn3 particles and by large Ca2Mg6Zn3 particles, respectively. During solution treatment, the Ca2Mg6Zn3 precipitates at the grain boundaries (GBs) are fully dissolved in the ZX11 alloy, but mainly redistributed to form a more connected configuration in the ZX30 alloy, showing a poor age-hardening response. Consequently, after solution-treatment, galvanic corrosion and corrosion rate decreases in the former, but increases in the latter. The peak-age condition displays the highest corrosion rate for both alloys, maybe due to an excessive number density of fine Ca2Mg6Zn3 particles acting as cathodic sites. However, the over-aged condition shows the lowest corrosion rate for the ZX11 alloy and a very similar one to that of the as-cast sample for the ZX30 alloy. The ZX11 alloy shows generally better biocorrosion behaviour than the ZX30 due to its lower content in the Ca2Mg6Zn3 phase and thus reduced galvanic corrosion. The Mg2Ca phase present in the present ZX11 alloy has been proved to exhibit an increased corrosion potential, which has been related to an observed enrichment with Zn.Elsevier202320232021info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/27727reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/277272026-06-24T12:48:17Z
dc.title.none.fl_str_mv Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
title Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
spellingShingle Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
Pulido-González, N
Magnesium alloys
Biodegradable implants
Heat treatment
Microstructure
Mechanical properties
Corrosion
title_short Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
title_full Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
title_fullStr Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
title_full_unstemmed Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
title_sort Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys
dc.creator.none.fl_str_mv Pulido-González, N
Hidalgo-Manrique, P
García-Rodríguez, S
Torres, B
Rams, J
author Pulido-González, N
author_facet Pulido-González, N
Hidalgo-Manrique, P
García-Rodríguez, S
Torres, B
Rams, J
author_role author
author2 Hidalgo-Manrique, P
García-Rodríguez, S
Torres, B
Rams, J
author2_role author
author
author
author
dc.subject.none.fl_str_mv Magnesium alloys
Biodegradable implants
Heat treatment
Microstructure
Mechanical properties
Corrosion
topic Magnesium alloys
Biodegradable implants
Heat treatment
Microstructure
Mechanical properties
Corrosion
description Financial support from the project ADITIMAT-CM S2018/NMT-4411 funded by the Madrid Regional Government is gratefully acknowledged. The research leading to these results has also received funding from the Spanish State Research Agency under the project RTI2018-096391-B-C31, which is also acknowledged. One of the authors (N. Pulido-González) thanks the Spanish Ministry of Education, Culture and Sports for a FPU fellowship. Thanks also to M. Tinoco-Rivas, from the CNME, for assistance with TEM.
publishDate 2021
dc.date.none.fl_str_mv 2021
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/27727
url https://hdl.handle.net/10115/27727
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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