Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites
The corrosion resistance and wear resistance of metallic biomaterials are critically important for orthopedic hard-tissue replacement applications because the lack of such properties not only adversely affects their mechanical integrity but also allows the release of wear debris into the human body....
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2021-05-01
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doaj-8026cee6b7844b93ac0863945241e2882021-07-03T04:46:00ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672021-05-0193895909Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocompositesMohammad Shahin0Khurram Munir1Cuie Wen2Yuncang Li3School of Engineering, RMIT University, Melbourne, VIC 3001, AustraliaSchool of Engineering, RMIT University, Melbourne, VIC 3001, AustraliaSchool of Engineering, RMIT University, Melbourne, VIC 3001, AustraliaCorresponding author.; School of Engineering, RMIT University, Melbourne, VIC 3001, AustraliaThe corrosion resistance and wear resistance of metallic biomaterials are critically important for orthopedic hard-tissue replacement applications because the lack of such properties not only adversely affects their mechanical integrity but also allows the release of wear debris into the human body. In this study, the potential of zirconium (Zr) as an alloying element and graphene nanoplatelets (GNPs) as a nano-reinforcement material were investigated in relation to improving the tribological performance of pure magnesium (Mg). The GNPs–reinforced Mg matrix nanocomposites (MNCs) were fabricated using powder metallurgy. Results indicate that additions of 0.5 wt.% Zr and 0.1 wt.% GNPs to Mg matrices significantly improved the wear resistance by 89% and 92% at 200 µN load, 60% and 80% at 100 µN load, and 94% and 93% at 50 µN load, respectively, as compared to the wear resistance of pure Mg. The wear depth and coefficient of friction of the MNC containing 0.5 wt.% Zr and 0.1 wt.% GNPs (Mg0.5Zr0.1GNPs MNC) were considerably reduced as compared to pure Mg and Mg0.5Zr. Our results demonstrate that the Mg0.5Zr0.1GNPs MNC is promising for orthopedic applications in relation to its excellent tribological performance.http://www.sciencedirect.com/science/article/pii/S2213956720302152Coefficient of frictionGraphene nanoplateletMagnesium matrix nanocompositeWear |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohammad Shahin Khurram Munir Cuie Wen Yuncang Li |
spellingShingle |
Mohammad Shahin Khurram Munir Cuie Wen Yuncang Li Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites Journal of Magnesium and Alloys Coefficient of friction Graphene nanoplatelet Magnesium matrix nanocomposite Wear |
author_facet |
Mohammad Shahin Khurram Munir Cuie Wen Yuncang Li |
author_sort |
Mohammad Shahin |
title |
Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites |
title_short |
Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites |
title_full |
Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites |
title_fullStr |
Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites |
title_full_unstemmed |
Nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites |
title_sort |
nano-tribological behavior of graphene nanoplatelet–reinforced magnesium matrix nanocomposites |
publisher |
KeAi Communications Co., Ltd. |
series |
Journal of Magnesium and Alloys |
issn |
2213-9567 |
publishDate |
2021-05-01 |
description |
The corrosion resistance and wear resistance of metallic biomaterials are critically important for orthopedic hard-tissue replacement applications because the lack of such properties not only adversely affects their mechanical integrity but also allows the release of wear debris into the human body. In this study, the potential of zirconium (Zr) as an alloying element and graphene nanoplatelets (GNPs) as a nano-reinforcement material were investigated in relation to improving the tribological performance of pure magnesium (Mg). The GNPs–reinforced Mg matrix nanocomposites (MNCs) were fabricated using powder metallurgy. Results indicate that additions of 0.5 wt.% Zr and 0.1 wt.% GNPs to Mg matrices significantly improved the wear resistance by 89% and 92% at 200 µN load, 60% and 80% at 100 µN load, and 94% and 93% at 50 µN load, respectively, as compared to the wear resistance of pure Mg. The wear depth and coefficient of friction of the MNC containing 0.5 wt.% Zr and 0.1 wt.% GNPs (Mg0.5Zr0.1GNPs MNC) were considerably reduced as compared to pure Mg and Mg0.5Zr. Our results demonstrate that the Mg0.5Zr0.1GNPs MNC is promising for orthopedic applications in relation to its excellent tribological performance. |
topic |
Coefficient of friction Graphene nanoplatelet Magnesium matrix nanocomposite Wear |
url |
http://www.sciencedirect.com/science/article/pii/S2213956720302152 |
work_keys_str_mv |
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