The effect of ZrO2 grinding media on the attrition milling of FeAl with Y2O3

Attrition milling of water and gas atomized FeAl was carried out with Y2O3, where ZrO2 was used as a grinding media in place of stainless steel balls to avoid contamination with Cr and C. Consolidation of the milled powders produced complex FeAl phases containing Zr which doubled the hardness and significantly improved the creep resistance as compared to that of unmilled and consolidated FeAl.