| 摘要 |
A rare-earth alloy powder is obtained by rapidly cooling a melt of an alloy by an atomization process. The alloy has a composition represented by (Fe1-mTm)100-x-y-zQxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one of the rare-earth metal elements and yttrium, and M is at least one of Nb, Zr, Mo, Ta and Hf. The mole fractions x, y, z, m and n satisfy 10 at %<x<=25 at %, 6 at %<=y<10 at %, 0.1 at %<=z<=12 at %, 0<=m<=0.5, and 0 at %<=n<=10 at %, respectively. By adding Ti to the alloy, the nucleation and growth of alpha-Fe during the rapid quenching process can be minimized.
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