Effect of Ultrasonic Treatment Parameters on Microstructural and Mechanical Properties of A356 Aluminum Alloy

Authors : Uğur AYBARÇ, Esra DOKUMACI, Kazım ÖNEL

Pages : 234-243

Doi:10.30939/ijastech..627422

View : 10 | Download : 7

Publication Date : 2020-12-31

Article Type : Research Paper

Abstract :The aim of this study is to investigate the effect of ultrasonic treatment on the microstructural and mechanical properties of A356 aluminum al-loy. Ultrasonic treatment was applied to 2 kg and 4 kg molten metals at different melting temperatures insert ignore into journalissuearticles values(700 oC, 720 oC and 740 oC); for different durations insert ignore into journalissuearticles values(0, 60, 180 and 300 seconds);. Bifilm indices of the samples were also measured after all parameters were tested. The ultimate tensile strength insert ignore into journalissuearticles values(UTS); and elongation values were used to calculate the Quality Index insert ignore into journalissuearticles values(QI); of the samples. According to the results, the amount of liquid metal directly affects the the ultrasonic intensity that is produced during the treatment. Maximum UTS and elongation results were determined at 720 oC during 300 seconds for 4 kg casting. Minimum bifilm density val-ue was measured at the same ultrasonic temperature and time.    
Keywords : Ultrasonic treatment, Aluminum alloy, Bifilm index, Quality index