Tikrit Journal of Engineering Sciences,
2016, Volume 23, Issue 4, Pages 1-10
AbstractIn this study a cylindrical liner was produced by horizontal centrifugal casting process. The liner was composed from aluminum alloy (A380) matrix reinforced with alumina particles (Al 2O3)with grain size of (63−125)µ and volume percent of 10,15 and 20%. The die was rotated at
different speeds and its temperature was remained constant at (350)ºC.
In this present study it was concluded that any increase in temperature difference between pouring and die temperature will reduce the surface defects. This study reveals that increasing the rotational speed refines the grain size but cause the alumina particles to be concentrated at
the outer surface. Finally it was found that the addition of alumina particles increases bothhardness and wear resistance of the alloy.
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