Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions

As a kind of potential biomedical material, Mg–Ca alloy has attracted much attention. However, the role of Ca-containing intermetallics in microgalvanic corrosion is still controversial. In 0.6 mol/L NaCl and Na(2)SO(4) solutions, the microgalvanic corrosion behavior of the second phase and Mg matri...

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Autores principales: Yang, Peixu, Ye, Songbo, Feng, Baojing, Liu, Jinhui, Huang, Sensen, Liu, Guonan, Zhang, Weidong, Tang, Weineng, Zhu, Shijie, Zhang, Shaojun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658488/
https://www.ncbi.nlm.nih.gov/pubmed/34885294
http://dx.doi.org/10.3390/ma14237140
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author Yang, Peixu
Ye, Songbo
Feng, Baojing
Liu, Jinhui
Huang, Sensen
Liu, Guonan
Zhang, Weidong
Tang, Weineng
Zhu, Shijie
Zhang, Shaojun
author_facet Yang, Peixu
Ye, Songbo
Feng, Baojing
Liu, Jinhui
Huang, Sensen
Liu, Guonan
Zhang, Weidong
Tang, Weineng
Zhu, Shijie
Zhang, Shaojun
author_sort Yang, Peixu
collection PubMed
description As a kind of potential biomedical material, Mg–Ca alloy has attracted much attention. However, the role of Ca-containing intermetallics in microgalvanic corrosion is still controversial. In 0.6 mol/L NaCl and Na(2)SO(4) solutions, the microgalvanic corrosion behavior of the second phase and Mg matrix of Mg–Ca and Mg–Al–Ca alloys was examined. It was confirmed that the Mg(2)Ca phase acts as a microanode in microgalvanic corrosion in both NaCl and Na(2)SO(4) solutions, with the Mg matrix acting as the cathode and the Al(2)Ca phase acting as the microcathode to accelerate corrosion of the adjacent Mg matrix. It was also found that Cl(−) and SO(4)(2−) have different sensibilities to microgalvanic corrosion.
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spelling pubmed-86584882021-12-10 Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions Yang, Peixu Ye, Songbo Feng, Baojing Liu, Jinhui Huang, Sensen Liu, Guonan Zhang, Weidong Tang, Weineng Zhu, Shijie Zhang, Shaojun Materials (Basel) Article As a kind of potential biomedical material, Mg–Ca alloy has attracted much attention. However, the role of Ca-containing intermetallics in microgalvanic corrosion is still controversial. In 0.6 mol/L NaCl and Na(2)SO(4) solutions, the microgalvanic corrosion behavior of the second phase and Mg matrix of Mg–Ca and Mg–Al–Ca alloys was examined. It was confirmed that the Mg(2)Ca phase acts as a microanode in microgalvanic corrosion in both NaCl and Na(2)SO(4) solutions, with the Mg matrix acting as the cathode and the Al(2)Ca phase acting as the microcathode to accelerate corrosion of the adjacent Mg matrix. It was also found that Cl(−) and SO(4)(2−) have different sensibilities to microgalvanic corrosion. MDPI 2021-11-24 /pmc/articles/PMC8658488/ /pubmed/34885294 http://dx.doi.org/10.3390/ma14237140 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Peixu
Ye, Songbo
Feng, Baojing
Liu, Jinhui
Huang, Sensen
Liu, Guonan
Zhang, Weidong
Tang, Weineng
Zhu, Shijie
Zhang, Shaojun
Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions
title Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions
title_full Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions
title_fullStr Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions
title_full_unstemmed Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions
title_short Microgalvanic Corrosion of Mg–Ca and Mg–Al–Ca Alloys in NaCl and Na(2)SO(4) Solutions
title_sort microgalvanic corrosion of mg–ca and mg–al–ca alloys in nacl and na(2)so(4) solutions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658488/
https://www.ncbi.nlm.nih.gov/pubmed/34885294
http://dx.doi.org/10.3390/ma14237140
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