Fe-50mol%Al粉末のメカニカルアロイング過程

概要

論文の詳細を見る
A study was made on the identification of change in structure of the Fe50Al50 powders during mechanical alloying. The powders were produced by milling a mixture of pure Fe and pure Al powders with molar ratio 50:50. A dry tumbler ball milling was used. In the X-ray diffractions, the peaks of the Fe and the Al phases became weak with milling time and the powders showed the same patterns as a case of supersaturated solid solution, α-Fe(Al), after 1800ks milling. Scanning electron microscope observations showed that the difference of each layer, the contrast of the back scattered electron micrograph, was diminished as milling time. The particles became large and lamellar in the initial milling stage. The powder became very fine (average particle size<5μm) and approximately spherical after 1800ks. A single phase of FeAl were formed by milling 1800ks and annealing at 1200K.
社団法人粉体粉末冶金協会の論文
1998-10-15