| 摘要 |
Alloys of Fe Nd B type for permanent magnets, the permanent magnets thus obtained and a method for the manufacture of the latter. …<??>They have high magnetic characteristics with good temperature behaviour and good resistance to atmospheric corrosion. …<??>They contain, in at.% from 11 to 18 % of rare earths, 3 to 30 % of Co, 5.9 to 12 % B, 2 to 10 % V, Al, Cu, the remainder being iron and unavoidable impurities. The V can be replaced by other refractory elements (Nb, W, Cr, Mo, Ti, Zr, Hf, Ta). …<??>The method comprises chiefly a sintering between 1050 and 1110 DEG C, followed by an annealing between 850 and 1050 DEG C and/or a tempering between 560 DEG C and 850 DEG C. …<IMAGE>… |
