| 摘要 |
PURPOSE:To obtain the titled alloy having improved machinability without deteriorating the hot workability by adding a specified amount of rare earth elements to an alloy having a specified composition consisting of Ni, Cu, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Ge and Fe. CONSTITUTION:The machinability of an Ni-Fe-Cu alloy contg. much Cu is improved without deteriorating the hot workability or reducing the initial permeability by adding 0.001-0.5wt% rare earth elements to the alloy consisting of 57-74wt% Ni, 12-32wt% Cu, <=10wt% at least one among Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn and Ge, and the balance Fe to obtain a free-cutting magnetic alloy. Misch metal may be used as the rare earth elements, and it improves the machinability without deteriorating the hot workability by improving the crushability of shavings when added by above restricted amount. |
