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Study of Nonmetallic Inclusions in Aluminum–Silicon Alloys

Galek Tomasz, Łączek Andrzej, Łysiak Karol

Advances in Manufacturing Science and Technology

2020

Vol. 44, nr 1

28-31

In this article, a study of nonmetallic inclusions introduced during the casting process of the aluminum–silicon alloy is presented. The samples were investigated using a scanning electron microscope to find the chemical composition and X-ray tomography to check the volumetric content of the non-metallic inclusions. The samples were made from AlSi7Mg alloy, used for car wheels, with 7% weight content of Si, 89% of Al, and 0.3% of Mg. The main goal of our investigations was to find out the chemical composition of the impurities and to identify the stage of the casting process at which the impurities are introduced.