| 摘要 |
PROBLEM TO BE SOLVED: To improve the corrosion resistance of a magnetic R-TM-B alloy by softening a coating film by the formation of an acicular structure and forming a microporous surface. SOLUTION: This corrosion resistant magnetic alloy has an Ni plating layer having an acicular structure of >=2μm length on the surface of a magnetic R-TM-B alloy consisting of 5-40wt.% R (R is one or more kinds of rare earth elements including Y), 50-90wt.% TM (TM is one or more kinds of transition metals selected from among Fe, Co, Ni, Ga, Al, Ti, V, Cr, Mn, Zr, Hf, Nb, Ta, Mo, Ge, Sn, Sb and Bi) and 0.2-8wt.% B (boron). The adhesion of the magnetic body to the Ni plating layer is improved. |
