Analisa Pengaruh Penambahan Mg Pada Komposit Matrik Aluminium Remelting Piston Berpenguat Sio2 Menggunakan Metode Stir Casting Terhadap Kekerasan Dan Densitas
Abstract: Aluminum Matrix Composites
(AMCs) is one
kind of advanced materials that
are being developed today. AMC is widely used in applications that require high
performance, such as the machining of aircraft, or also in the automotive
industry This research aims to determine the effect of Mg to improve
wettability on aluminum matrix
composite piston remelting
reinforcement SiO2 using
stir casting method to the value of hardness and density.The stirring
process temperature is 650oC, with a stirring speed is 600 rpm for 5 minutes,
and the pouring temperature is 725oC, and the variations of mass Mg fraction
are 1%, 1.5%, 2%, and 2, 5% with size of 9% SiO2 using mesh 270.The hardness testing using the
Rockwell B and the density testing using Archimedes method. The
results showed that
the hardness value
of the AMC increases along with the quantity of the
added magnesium and addition 2% of Magnesium
has the highest
hardness is 67.78
HRB, This behavior indicates that
the addition of magnesium (Mg) to increase the density and reached a high value
is 2.460 g / cm3 in the variation of the addition a mass fraction of magnesium
(Mg) 2.5%.
Penulis: Agiel Setyo Prabowo,
Teguh Triyono, Indri Yaningsih
Kode Jurnal: jptmesindd160693
