Fabrication of Mg2Si/AL In-Situ copmosite in a hyper-eutectic Al-Si alloy with rheocasting method
محل انتشار: دومین کنفرانس بین المللی آلومینیوم
سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,401
فایل این مقاله در 5 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
IIAC02_034
تاریخ نمایه سازی: 12 اردیبهشت 1392
چکیده مقاله:
A hyper eutectic Al-Si alloy is known by its high wear and corrosion resistance and also low thermal expansion coefficient; hence, it used in the automotive industry. Those reasonable advantages are attributed to the primary silicon phase. Therefore, the primary phase morphology plays an important role on the mechanical properties of the final product. On the other hand, the attached coarse silicon primary phase impedes the achievement of significant mechanical properties. Some studies indicate that the addition of Mg element to Al-Si alloy makes the Si primary phase matrix weak and fragile. In this study Mg was added to an A390 hyper eutectic Al-Si alloy. Then, the melt was stirred at 256 and 512 rpm. Results show that a new Mg2si phase is produced in the melt and applying rheocasting methods makes both the Mg2Si morphology and the primary Si phase finer and non-dendritic.
کلیدواژه ها:
نویسندگان
Pejman Melali
Department of Materials Engineering , Iran university of Science and Technology, Tehran, P.O. Box: ۱۶۸۴۶, Iran
Mohammad Shahmiri
Department of Materials Engineering , Iran university of Science and Technology, Tehran, P.O. Box: ۱۶۸۴۶, Iran