Fe-25mol%Alミリング粉末の構成相に及ぼすミリング時間および熱処理温度の影響

概要

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The elemental powders were milled by a dry tumbler ball-mill in the Fe-25 mol% Al system. The change in phase of the powder milled in different milling times and subsequently heat-treated at different temperatures was studied. In the thermal analysis (DSC) of the milled powder, a marked exothermic reaction occurred rapidly after a short milling time 36 ks. No remarkable reaction was observed after a long milling time over 360 ks. The milled and subsequently heat-treated powders consisted of different phases according to the milling time and heat-treatment temperature. A “Milling-Time/Heat-Treatment-Temperature/Phase” diagram was obtained from the phase observation results. A single phase of Fe3Al was formed by milling over 360 ks and annealing at 750 K.
社団法人粉体粉末冶金協会の論文
2005-04-15