Fe-50mol%Al粉末のメカニカルアロイング過程 [in Japanese] Characterization of Fe-50mol%Al Powder in Mechanical Alloying [in Japanese]
Access this Article
Search this Article
A study was made on the identification of change in structure of the Fe<SUB>50</SUB>Al<SUB>50</SUB> 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.<BR>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.
- J. Jpn. Soc. Powder Powder Metallurgy
J. Jpn. Soc. Powder Powder Metallurgy 45(10), 947-951, 1998-10-15
Japan Society of Powder and Powder Metallurgy