Abstract
Fe-48at%Cr powder was synthesized by mechanical alloying (MA) of Fe powder and Cr powder using rapid-rotation type planetary ball mill. Homogeneous MA powder was obtained for only 600 s milling at 900 rpm of orbital speed while it had taken for over 360 ks to homogenize them at 200 rpm. The obtained powder had a crystal structure of bcc lattice and contained no brittle phase such as σ phase. The MA powder was sintered by a pulsed current sintering and completely condensed above 1000 K. The sintered Fe-48at%Cr alloy also has no σ phase. Hardness of the sintered body is Hv 380 and there was no crack around the indentation for Vickers hardness.
