Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1572236 | Materials Characterization | 2009 | 4 Pages |
Tb0.3Dy0.7Fe1.95 alloy was cast and directionally solidified by modified Bridgman technique at different solidification rates and investigated for microstructural features and magnetic properties. The phase relationship between the co-existing phases viz., (Tb,Dy)Fe2, (Tb,Dy)Fe3 and (Tb,Dy)-rich are studied as a function of solidification rate to evolve a structure–property correlation. Higher solidification rate improves <110> grain texture and favour large magnetostriction. The magnetization and Mössbauer studies indicate no perceptible change in Fe magnetic moment, with a slight deviation in the 1:3 intensity ratio of the two sextets. Comparing the Mössbauer and microstructural results a relationship has been established between the intensity ratio and the volume fraction of the deleterious minor phase (Tb,Dy)Fe3 in (Tb,Dy)Fe2 microstructure.