Abstract
Aluminum with Al2O3 material has high strength and light weight. In this study, the aluminum is used with Al2O3 material as an alternative material seamless pipe. The making of this material seamless pipe is through the stir casting process and centrifugal casting process. The results show that the addition of reinforcing and spin method increases the mechanical properties of the cast. Influences of process-variables are analyzed using the microstructure observation. The observations show that there formed a new phase, i.e. MgO and MgAl2O4. The new phase will improve wettability and mechanical properties of the composites. The hardness value of composites growing with the increasing of the Vf% Al2O3 and the centrifugal process. The highest hardness is achieved by 47 HRB with 5%Vf Al2O3-3 wt% Mg. Expected results of aluminum composite with ceramic particles reinforcement design is to obtain a composite material, which have superior mechanical properties, such as strength, hardness, high temperature resistant and light weight. The material can be applied as an alternative material for tube and pipe products. Initially, the product materials are made of steel and now can be replaced using composite Al/Al2O3.
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