Iron-based powdered soft-magnetic materials for the use in electric motors under permanent and variable electromag-netic felds have been obtained in the Institute of Metallurgy.

1) The new cost-effcient production technology of soft-magnetic material for the permanent electromagnetic field applications (Fig. 1) by replacing the conventional sintering environment with gaseous nitrogen has been developed. The advantages of the proposed method are the following: sintering process cost cutting by a factor of 10; elimination of explosion hazard currently associated with the traditional sintering environment (hydrogen); the possibility for sintering the materials in the flow furnaces in the continuous production mode.

2) The new technology of soft-magnetic materials of the Fe-Si system production from mechanically activated powders for the variable electromagnetic field applications has been proposed. It allows the density of the material to be increased considerably(nearly to the density of pure iron powder material),which improves magnetic properties, mechanical properties, and reduces the magnetization reversal losses. (Fig.2).