The development of <100> texture in Fe-Cr-Co-Mo permanent magnet alloys

The cold-rolled and recrystallization textures of Fe-Cr-Co-Mo permanent magnet alloys are described. The studied composition is Fe-30%Cr-15%Co-3%Mo (in wt.%). The cold-rolled texture can be considered to be [111]<110>, [111]<112>, [100]<110>, and [211]<110>, while the recrystallization texture can be considered to be [111]<100>, [110]<112>, [211]<110>, and [110]<110>. The secondary recrystallization is caused by heat-treating the alloys in the sequence of alpha , alpha + gamma , alpha + gamma + sigma , alpha phase region. This results in a favorable texture of [110]<110> and <100> direction, aligning along the transverse direction (TD) of the strips. The best magnetic properties obtained in this study were 1.2 T (12.0 kG), iH/sub c/=82.0 kAm/sup -1/ (1025 Oe), and (BH)max= 60.8 kJm/sup -3/ (7.6 MGOe) with TD alloys.<
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