The Effects of Mould Materials on Microstructure and Mechanical Properties of Cast A۳۵۶ Alloy
محل انتشار: فصلنامه مواد پیشرفته و فرآوری، دوره: 2، شماره: 4
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 125
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شناسه ملی سند علمی:
JR_JMATPR-2-4_001
تاریخ نمایه سازی: 12 مهر 1400
چکیده مقاله:
Abstract In this study, the effects of mould materials on microstructure and mechanical properties of cast A۳۵۶ Al alloy were investigated. The alloy was poured into three different moulds. Then the samples were homogenised and applied T۶ heat treatment. The optical, Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) studies were made. Secondary dendrite arm spacing (SDAS) was measured by image analysis systems. Hardness and tensile tests were also performed. The ultimate tensile strength (UTS) values were evaluated by Weibull statistical analysis As a result of the studies, the highest values of SDAS were measured for the samples obtained using ceramic mould, which led to the slowest cooling rate, the lowest values of SDAS were measured for the samples obtained using chromite sand mould, which led to the highest cooling rate. The hardness values were increased about ۲.۵ times which samples were applied T۶ heat treatment. The highest tensile strength was observed for the samples obtained using sand mould.
کلیدواژه ها:
نویسندگان
Musa Yıldırım
Karabuk University Technology Faculty
Dursun ÖZYÜREK
Karabuk University Technology Faculty