1151 メカニカルアロイングによる FeAl 基 ODS の作製

概要

論文の詳細を見る
Water atomized Fe powder, containing excessive oxygen, was mechanically alloyed (MA) with Al powder at the composition of Fe-40mol%Al. Al can act as a metallic reducing agent for iron oxide of water atomized Fe powder during powder metallurgy process. After long time milling, B2 type FeAl intermetallic phase forms along with elemental phases only by MA. Vacuum hot pressed compacts of obtained from two MAed powders showed almost 100% FeAl intermetallic compound. Compact made from the water atomized Fe powder showed higher hardness compared to the case of reduced Fe powder. This seems to be caused of the effect of dispersed Al_2O_3 particle. And the compact made from the fully milled powder showed higher hardness compared to the case of the powder milled for short time. This seems to be caused of the fine microstructure of the compact.
一般社団法人日本機械学会の論文
2003-08-05