Heat Treatment Process Of Aluminium Alloy To Minimize The Precipitate Free Zones And It Effect To Wear Resistance

Shairulafizan, Muhammad Shamsuddin (2006) Heat Treatment Process Of Aluminium Alloy To Minimize The Precipitate Free Zones And It Effect To Wear Resistance. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Heat treating processes for aluminum are precision processes. Based on the objectives of this research, Precipitate Free zones in the aluminum alloy 6061 actually give bad effect to the mechanical properties of that alloy. The mechanical properties of the aluminum alloy should be altering properly to improve their behavior using precipitation hardening which one of the heat treatment types. Precipitation hardening is the most suitable heat treatment that should use to minimize the precipitate free zones in the microstructure of the aluminum alloy 6061 series. In the precipitation hardening process, the thermal and temperature condition is under control with high prediction to ensure the transformation of the aluminum alloy structure is in good condition and supervision limit. The samples of the material are placed in the furnace to make a heating process and then quench it in the water for quenching medium. The material testing that had been applied is based on hardness, impact and microstructure analysis. The purpose of the hardness testing are to find out the hardness reading for all samples that used to look the wear resistance effect that occur after make a heat treating process to the aluminum alloy 6061. From the impact test, the purposes are to know impact energy that absorbed to fracture the samples of the material and then make a comparison data between after and before heat treat treatment. Lastly, for microstructure analysis it is important to determine because to look the narrow evaluation of precipitate free zones in the microstructure of aluminum alloy after make a precipitation hardening process. From the data and result that already determined, it shown the positive result based on the objectives and scope of this project.

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