The phase formation, crystallization products, microstructure, and magnetic behavior of Fe-rich Sm-Fe alloys modified with Ti and C have been determined. Alloys of nominal composition (Sm0.11-xFe0.89+x)(94)Ti3C3 with x = 0, 0.02, and 0.04 were produced by melt spinning. Crystalline phases observed included SmFe7 and alpha-Fe and an increasing amorphous fraction was observed with increasing x. Upon crystallization the amorphous fraction converted to Sm2Fe17 and alpha-Fe, with a grain size of 30 nm for the sample with x = 0.02. The magnetic measurements of nitrided alloys revealed a remanent ratio above 0.5 for x = 0 and 0.02, although the coercivity was rather low. (C) 2000 American Institute of Physics. S0021-8979(00)01804-1. References: 17
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