| 简介 |
Disclosed is an R-T-B-base alloy that is a raw material for a rare earth permanent magnet. In the R-T-B-base alloy, R represents at least one of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, T represents a transition metal containing not less than 80% by mass of Fe, and B contains not less than 50% by mass of B and contains not less than 0% by mass and less than 50% by mass of at least one of C and N. The R-T-B-base alloy is characterized in that the contents of R, T, and B are not less than 20% by mass and not more than 80% by mass, not less than 20% by mass and not more than 80% by mass, and not less than 0% by mass and not more than 1.5% by mass, respectively, R contains not less than 20% by mass of Dy, and diffraction peaks appear at 31.1 to 31.3° and 37.8 to 38.0° as measured by X-ray diffractometry (2θ/θ) using CuKα. |
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