Mechanical Properties of Rapidly Solidified Al-Ni-Mm Alloy Powders Consolidated by Extrusion

급속응고 Al-Ni-Mm 합금분말 압출재의 기계적 성질

In this study, Al-Ni-Mm alloy has been produced by a gas atomization technique and consolidated by a powder extrusion method. The powders showed mixed structures of amorphous, fcc-Al phases and intermetallics. Each phase shows different size and quantity with different size of the powders due to the higher cooling rate of the finer powders. Because of the difference of the microstructure, the powders with the different size show differences of the mechanical properites of the powders and extrudates.