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Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering

Magnesium alloys are attracting increasing attention for the fabrication of temporary implants because of their superior biodegradability and biocompatibility. However, their high degradation rate under physiological conditions limits their clinical applications. In this work, a Nb(2)O(5)/Nb(2)O(5)–...

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Autores principales: Ding, Ziyu, Yuan, Qianhong, Wang, Hao, Tang, Yinghong, Tan, Yimin, He, Quanguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9540408/
https://www.ncbi.nlm.nih.gov/pubmed/36320239
http://dx.doi.org/10.1039/d2ra04907d
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author Ding, Ziyu
Yuan, Qianhong
Wang, Hao
Tang, Yinghong
Tan, Yimin
He, Quanguo
author_facet Ding, Ziyu
Yuan, Qianhong
Wang, Hao
Tang, Yinghong
Tan, Yimin
He, Quanguo
author_sort Ding, Ziyu
collection PubMed
description Magnesium alloys are attracting increasing attention for the fabrication of temporary implants because of their superior biodegradability and biocompatibility. However, their high degradation rate under physiological conditions limits their clinical applications. In this work, a Nb(2)O(5)/Nb(2)O(5)–Mg/Mg multilayer coating was prepared on the surface of AZ31 magnesium alloy by magnetron sputtering in order to improve its corrosion resistance. The microstructure and performance of the layers were studied by SEM, AFM, EDS, and XPS, and a scratch tester, nanoindenter, friction tester, and electrochemical workstation, using Nb(2)O(5) monolayer coating as a control. The results show that these two coatings significantly improved the mechanical, tribological, and anticorrosion performance of AZ31 magnesium alloy. Compared with a Nb(2)O(5) monolayer coating, the multilayer coating exhibits an increased adhesion by about 10.6 times, and a decreased wear rate and corrosion current density by one order of magnitude, meaning higher damage resistance. This study provides a feasible strategy for enhancing the properties of ceramic layers on magnesium alloys for medical applications.
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spelling pubmed-95404082022-10-31 Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering Ding, Ziyu Yuan, Qianhong Wang, Hao Tang, Yinghong Tan, Yimin He, Quanguo RSC Adv Chemistry Magnesium alloys are attracting increasing attention for the fabrication of temporary implants because of their superior biodegradability and biocompatibility. However, their high degradation rate under physiological conditions limits their clinical applications. In this work, a Nb(2)O(5)/Nb(2)O(5)–Mg/Mg multilayer coating was prepared on the surface of AZ31 magnesium alloy by magnetron sputtering in order to improve its corrosion resistance. The microstructure and performance of the layers were studied by SEM, AFM, EDS, and XPS, and a scratch tester, nanoindenter, friction tester, and electrochemical workstation, using Nb(2)O(5) monolayer coating as a control. The results show that these two coatings significantly improved the mechanical, tribological, and anticorrosion performance of AZ31 magnesium alloy. Compared with a Nb(2)O(5) monolayer coating, the multilayer coating exhibits an increased adhesion by about 10.6 times, and a decreased wear rate and corrosion current density by one order of magnitude, meaning higher damage resistance. This study provides a feasible strategy for enhancing the properties of ceramic layers on magnesium alloys for medical applications. The Royal Society of Chemistry 2022-10-07 /pmc/articles/PMC9540408/ /pubmed/36320239 http://dx.doi.org/10.1039/d2ra04907d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Ding, Ziyu
Yuan, Qianhong
Wang, Hao
Tang, Yinghong
Tan, Yimin
He, Quanguo
Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering
title Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering
title_full Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering
title_fullStr Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering
title_full_unstemmed Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering
title_short Anticorrosion behaviour and tribological properties of AZ31 magnesium alloy coated with Nb(2)O(5)/Nb(2)O(5)–Mg/Mg layer by magnetron sputtering
title_sort anticorrosion behaviour and tribological properties of az31 magnesium alloy coated with nb(2)o(5)/nb(2)o(5)–mg/mg layer by magnetron sputtering
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9540408/
https://www.ncbi.nlm.nih.gov/pubmed/36320239
http://dx.doi.org/10.1039/d2ra04907d
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