Microstructural and physical characteristics of recycling aluminium chips AA6061/Al powder using powder metallurgy

Ab Kadir, Muhammad Irfan and Mustapa, Mohammad Sukri and Siswanto, Waluyo Adi and Mahdi, Ahmed Sahib and Samsi, Mohd Arif (2017) Microstructural and physical characteristics of recycling aluminium chips AA6061/Al powder using powder metallurgy. International Journal of Engineering and Technology (IJET), 8 (6). pp. 2619-2625. ISSN 09754024

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Official URL: DOI:10.21817/ijet/2016/v8i6/160806218

Abstract

Solid state recycling of AA6061 chips by cold compression is a current approach processing technique that uses remarkably lower energies and operating cost compared to conventional recycling by casting. In this study, recycled AA6061 chips together with Al powder were fabricated to form a sample by combination of powder metallurgy and compaction technique. The effects of various Al powder content on the microstructure of the recycling AA6061/Al sample were investigated. The density, apparent porosity, water absorption and hardness of the composites were also examined. It was observed that the Al powders in the AA6061/Al composites were distributed non-homogeneously and randomly between the AA6061 chip regions. The density decreased gradually with the addition of Al powder rise back at 70 wt% content of Al powder until it reaches full Al powder. The density of sample full chips and full powder shows the closest value to theoretical at 2.47 g/cm3 and 2.43 g/cm3 respectively. The full Al chips showed the highest hardness at 65.6 Hv and gradually decreased with the increasing of Al powder content.

Item Type:Article
Uncontrolled Keywords:Aluminium; recycling chip; powder metallurgy; microstructure; physical characteristic
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering Technology
ID Code:8968
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:13 Aug 2018 11:15
Last Modified:13 Aug 2018 11:15

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