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Abstract

A melt of an iron-based rare earth material alloy, represented by (Fe.sub.1-m T.sub.m).sub.100-x-y-z Q.sub.x R.sub.y M.sub.z, is prepared, wherein T is Co and/or Ni; Q is B and/or C; R is selected from Y (yttrium) and the rare earth elements; M is selected from Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb; 10.ltoreq.x.ltoreq.30 at %; 2%.ltoreq.y<10 at %; 0.ltoreq.z.ltoreq.10 at % and 0.ltoreq.m.ltoreq.0.5. The melt is fed onto a guide to form a flow of the melt thereon and move the melt onto a melt/chill roller contact region, where the melt is rapidly cooled by the chill roller to make a rapidly solidified alloy. An oxygen concentration of the melt yet to be fed onto the guide is controlled at about 3,000 ppm or less in mass percentage.

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First Claim