A Study on the Wear Behavior of Al2Ce-p Reinforced Al Matrix Composite Layers at an Elevated Temperature

This study focuses on fabricating AlAl matrix compositeComposites layers on commercially pure AlAl and 70757075 alloy by hot pressing to improve wear resistance at elevated temperaturesTemperature. As a reinforcement particle, Al2Ce intermetallicAl2Ce intermetallic particles synthesized by vacuum arc melting was chosen for its better chemical compatibility with AlAl matrix. Structural characterizationsCharacterization revealed the good binding between Al2Ce-p and AlAl matrix and the success of Al2Ce-p in increasing hardnessHardness of AlAl and 70757075 alloy. Results of the wear tests conducted at 200 °C against alumina balls under the load of 2 N showed 2.6- and 6.0-times lower wear rate for the AlAl matrix compositeComposites layer covered and 70757075 matrix compositeComposites layer covered samples as compared to their monolithic states, respectively.