INVESTIGATION OF THE EFFECT OF POWDER PARTICLE-SIZE DISTRIBUTION ON THE POWDER MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF CONSOLIDATED MATERIAL MADE FROM A RAPIDLY SOLIDIFIED AL-FE-CE ALLOY POWDER .2. MECHANICAL-PROPERTIES

In the present investigation, the mechanical properties of an elevated temperature aluminium alloy exhibiting two different size distributio ns was evaluated after extrusion processing at 400-degrees-C. The allo y powder with a target composition of Al-8 wt.% Fe-4 wt.%Ce was produc ed under different atomizing conditions. The consolidation process usi ng extrusion was found to be more beneficial for finer powder size dis tribution in terms of elevated temperature mechanical properties becau se of the retention of a more desirable metastable phase.