Citation

Teo, Guo Sheng and Liew, Kia Wai and Kok, Chee Kuang (2021) Enhancement of Microhardness and Tribological Properties of Recycled AA 6063 Using Energy-Efficient and Environment-Friendly Friction Stir Processing. IOP Conference Series: Earth and Environmental Science, 943 (1). 012019. ISSN 1755-1315

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Abstract

In this study, the surface microhardness, friction and wear performance of recycled aluminium alloy 6063 were improved via an energy-efficient surface engineering technique known as friction stir processing. Different tool rotational speeds of 1200 rpm, 1400 rpm, 1600 rpm, 1800 rpm and 2000 rpm with a fixed feed rate of 30 mm/min were used to process the recycled aluminium alloy 6063. The effects of rotational speed on the microstructure, surface microhardness and tribological performance of the samples were analyzed. The results show that the samples produced at a stirring speed of 1200 rpm achieved the greatest enhancement of 25 % in surface microhardness, 37 % in wear resistance and 33 % reduction in friction coefficient. This has significant implications for environmental sustainability as a relatively low rotational speed, hence a low energy input, is sufficient to enhance the surface properties of recycled aluminium alloy 6063. The benefits of superior tribological properties of recycled aluminium alloy afforded by such an energy-efficient surface engineering method include reduced exploitation of new resources, reduced carbon footprint, and enhanced product sustainability and durability.

Item Type:	Article
Uncontrolled Keywords:	Microhardness and Tribological Properties
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN600-799 Metallurgy
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	03 Mar 2022 02:26
Last Modified:	03 Mar 2022 02:26
URII:	http://shdl.mmu.edu.my/id/eprint/10017

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