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오명훈,이상우,오민환,최진혁,김성진 金烏工科大學校 産業技術開發硏究院 1999 産業技術開發硏究 Vol.15 No.-
Al-Xwt%Fe(X=4,8,12) were mechanically alloyed and sintered to enhance the properties at high temperature. The powders of various composition were milled for the range of 30 to 40 hours, and they were investigated by means of XRD, SEM and microvickers hardness tester. Alloyed powders were sintered by the method, Plasma Activated Sintering(PAS) at 550˚C for 2min and 6min. It was observed from XRD, microvickers hardness and SEM that the growth of precipitates was occurred during the sintering. Particularly, as the milling time, sintering time and addition of Fe element increased, microvickers hardness also increased.