The Effect of Heat Treatment on Hardness and Microstructure of Al-Cu Squeeze Casting Product

Ali Saifullah, Ferdian Reynaldi, Iis Siti Aisyah, Achmad Fauzan Heri Soegiharto


Abstract


This research was conducted with the purpose of knowing the change mechanical properties of Al - Cu squeeze casting product which applied  heat treatment and quenching. This study uses Al with the addition  of 2% and 4% Cu,with the squeeze casting pressures applied are 100, 200, 300 and 400 bar.  Heat treatment temperature constant at 520 ° C and 90 minute holding time. The heat treatment results were observed using Optical Microscopy with 800 times magnification and the hardness was measured using the Vickers hardness test method. . The highest result of hardness is on the pressure  400 bar with the addition of 4% Cu which is 120.53 VHN and the average percentage of the most Al2Cu compounds is 23.125%. Heat treatment followed by quenching process significantly increase the hardness, it is  because of the more solid and smaller granular shape due to quenching

Keywords


Al-Cu; hardness test; heat treatment, squeeze casting

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DOI: https://doi.org/10.22219/jemmme.v4i1.8531 | Abstract views : 59 | PDF views : 0

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