The Effect of Graphene Nanoplatelets Content on the Hardness of Mg6%Zn0.2%Mn Composites

Abang Mohamad Harith, Abang Beniamin and Noor Hisyam, Noor Mohamed and Mahsuri, Yusof (2023) The Effect of Graphene Nanoplatelets Content on the Hardness of Mg6%Zn0.2%Mn Composites. Pertanika Journal of Science & Technology, 31 (3). pp. 1493-1502. ISSN 0128-7680

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The effect of graphene nanoplatelets (GNPs) content on the hardness of magnesium-based composites was studied. A magnesium-based composite, Mg6%Zn0.2%Mn with graphene nanoplatelets (GNPs), was fabricated via powder metallurgy process at room temperature and compressive pressures of 50kN for 20 minutes, which was then sintered at 500°C for 2 hours. It produced significant grain refinement microstructure. The change in microstructure was examined by 3D microscope analysis, and the hardness value was evaluated using the Vickers microhardness apparatus. This study demonstrated the importance of GNPs reinforcement with zinc and manganese for microhardness analysis in the sintered Mg-based GNPs composites. It also portrayed their influence on grain refinement of the microstructure. The hardness results agreed with the microstructure results, proving that the presence of GNPs increases the hardness of the Mg-based composites.

Item Type: Article
Uncontrolled Keywords: Graphene nanoplatelets, magnesium-based composites, microhardness test, powder metallurgy.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Faculties, Institutes, Centres > Faculty of Engineering
Depositing User: Tuah
Date Deposited: 08 Aug 2023 04:23
Last Modified: 02 Oct 2023 01:50

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