Characterization of the graded distribution of primary particles in A390 Alloy with various Mg contents fabricated by centrifugal casting

Three kind of functionally graded material tubes using Al-15Si alloys containing 0, 5 and 10wt% magnesium were prepared by centrifugal casting and their microstructure have been investigated. It is shown that A390 alloy without Mg that reinforced with primary Si particles takes a characteristic of particles distribution both in the inner and outer layers. However Al alloy with 5wt% Mg reinforced with Si/Mg2Si particles had a different performance with particles distribution only in the inner layer. Alloy with 10wt% Mg had a performance as same as A390 alloy, whereas, it had only primary Mg2Si as a reinforced particle in its microstructure. Scanning Electron Microscopy (SEM) and Energy Dispersive Spectrometer (EDS) was used to confirm phase analyzing.

کلیدواژه ها:

functionally graded material ، A390 alloy ، centrifugal casting