CU-NI SOLID SOLUTION STRENGTHENED HIGH TEMPERATURE ALUMINUM ALLOYS AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A Cu-Ni complete solid solubility reinforced heat-resistant aluminum alloy and a manufacturing method thereof are provided to prevent phase disruption under high temperature and to easily select alloy element for recycle using the specific gravity difference between aluminum and Cu-Ni alloy. CONSTITUTION: A Cu-Ni complete solid solubility reinforced heat-resistant aluminum alloy, in which aluminum is combined with Cu-Ni alloy element in a reinforcing phase, comprises aluminum 0.5~10 weight%. The Cu-Ni alloy element comprises copper 10~90 weight% and nickel 10~90 weight%. The complete solid solution reinforcing phase in a grain boundary interface shape of 10~50μm keeps the stable phase to the temperature of 873°C.