Al-Fe-Nd powders prepared by gas atomisation

摘要

Aluminium-based alloys with a mixed structure consiting of a nanometric-scale dispersion of al particles embedded in an amorphous matrix can present excellent values of tensile strength without detriment of ductility. Also, the mechanical properties of bulk aluminium alloys processed by powder metallurgy are found to imprve when the powders are obtained by rapid solidification techniques, such as gas atomisation. In the present work we report on the preparation of a vovel alloy powder of the Al-Fe-Nd system obtained by gas atomisation, aiming to obtian amorphous or new metastiable phase and to study their potential possibilites as precursors for the production of bulk aluminium-based high strength alloys.