Assessment of melt cleanliness in A356.2 aluminium casting alloy using the porous disc filtration apparatus technique: Part I Inclusion measurements

摘要: The present work was undertaken to study the role of major operating parameters commonly applied in aluminium foundries, as well effect minor alloying elements on inclusion formation one most widely used Al–Si alloys, i.e., A356.2 primary alloy, using porous disc filtration apparatus (PoDFA) technique. A set 23 experiments conducted (each a melt 25 kg fresh alloy material). In each case, four six successive PoDFA trials were executed. samples containing unfiltered part metal (about 5 mm thickness) contact with filter polished for metallographic examination. Inclusion classification and counting done grid method. summarizes types concentrations non-metallic inclusions oxide films that can occur this prior casting.