HTE TRIAL PRODUCTION AND CHARACTERI- STICS OF ALUMINIUM ALLOY/Al₂O₃-SiO₂ FIBRE GRAIN COMPOSITE MATERIAL

This research utilizes pressure casting to make Al₂O₃ fibre grain to form composite with aluminium alloy. This composite material is subjected to a comparison test with ZL108 on wear,elongation. The test results shows that in comparison with ZL108, this coTposite material has more than ten times higher wear resistance both at room and elevated temperatures (400-0),more than twofold higher strength at elevated temperatures, but in wear with fatigue failure,its wear resistance is not noticeably better than that of ZL108,furthermore it accelerates the wear of its pairing material.