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Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy

Zinc (Zn), one of the promising candidates for biodegradable implant materials, has excellent biocompatibility and biodegradability. In this study, as-cast Zn1FexMg (x ≤ 1.5 wt %) alloys were prepared to systematically explore the effects of magnesium (Mg) alloying on their microstructures, mechanic...

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Autores principales: Xue, Penghao, Ma, Minglong, Li, Yongjun, Li, Xinggang, Yuan, Jiawei, Shi, Guoliang, Wang, Kaikun, Zhang, Kui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7662305/
https://www.ncbi.nlm.nih.gov/pubmed/33137896
http://dx.doi.org/10.3390/ma13214835
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author Xue, Penghao
Ma, Minglong
Li, Yongjun
Li, Xinggang
Yuan, Jiawei
Shi, Guoliang
Wang, Kaikun
Zhang, Kui
author_facet Xue, Penghao
Ma, Minglong
Li, Yongjun
Li, Xinggang
Yuan, Jiawei
Shi, Guoliang
Wang, Kaikun
Zhang, Kui
author_sort Xue, Penghao
collection PubMed
description Zinc (Zn), one of the promising candidates for biodegradable implant materials, has excellent biocompatibility and biodegradability. In this study, as-cast Zn1FexMg (x ≤ 1.5 wt %) alloys were prepared to systematically explore the effects of magnesium (Mg) alloying on their microstructures, mechanical properties, and biodegradability. The microstructure of Zn1FexMg alloy consisted of Zn matrix, Zn + Mg(2)Zn(11) eutectic structure, and FeZn(13) phase. The addition of Mg not only promoted grain refinement of the alloy, but also improved its mechanical properties. The results of immersion tests showed that the addition of Mg accelerated microcell corrosion between different phases, and the modeling of the corrosion mechanism of alloys in simulated body fluid (SBF) solution was discussed to describe the interaction between different phases in the corrosion process. Zn1Fe1Mg possessed superior comprehensive mechanical properties and appropriate corrosion rate, and the values for hardness, tensile strength, yield strength, elongation, and corrosion rate were 105 HB, 157 MPa, 146 MPa, 2.3%, and 0.027 mm/a, respectively, thus revealing that Zn1Fe1Mg is a preferred candidate for biodegradable implant material.
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spelling pubmed-76623052020-11-14 Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy Xue, Penghao Ma, Minglong Li, Yongjun Li, Xinggang Yuan, Jiawei Shi, Guoliang Wang, Kaikun Zhang, Kui Materials (Basel) Article Zinc (Zn), one of the promising candidates for biodegradable implant materials, has excellent biocompatibility and biodegradability. In this study, as-cast Zn1FexMg (x ≤ 1.5 wt %) alloys were prepared to systematically explore the effects of magnesium (Mg) alloying on their microstructures, mechanical properties, and biodegradability. The microstructure of Zn1FexMg alloy consisted of Zn matrix, Zn + Mg(2)Zn(11) eutectic structure, and FeZn(13) phase. The addition of Mg not only promoted grain refinement of the alloy, but also improved its mechanical properties. The results of immersion tests showed that the addition of Mg accelerated microcell corrosion between different phases, and the modeling of the corrosion mechanism of alloys in simulated body fluid (SBF) solution was discussed to describe the interaction between different phases in the corrosion process. Zn1Fe1Mg possessed superior comprehensive mechanical properties and appropriate corrosion rate, and the values for hardness, tensile strength, yield strength, elongation, and corrosion rate were 105 HB, 157 MPa, 146 MPa, 2.3%, and 0.027 mm/a, respectively, thus revealing that Zn1Fe1Mg is a preferred candidate for biodegradable implant material. MDPI 2020-10-29 /pmc/articles/PMC7662305/ /pubmed/33137896 http://dx.doi.org/10.3390/ma13214835 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xue, Penghao
Ma, Minglong
Li, Yongjun
Li, Xinggang
Yuan, Jiawei
Shi, Guoliang
Wang, Kaikun
Zhang, Kui
Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy
title Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy
title_full Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy
title_fullStr Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy
title_full_unstemmed Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy
title_short Microstructure, Mechanical Properties, and in Vitro Corrosion Behavior of Biodegradable Zn-1Fe-xMg Alloy
title_sort microstructure, mechanical properties, and in vitro corrosion behavior of biodegradable zn-1fe-xmg alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7662305/
https://www.ncbi.nlm.nih.gov/pubmed/33137896
http://dx.doi.org/10.3390/ma13214835
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