PREPARATION OF NITRIDE-DISPERSION-STRENGTHENED IRON BY MECHANICAL ALLOYING

The results of studies of the interaction of Fe-Ti alloys in an NH3 at mosphere under mechanical alloying are reported. It was found that mec hanical alloying in an NH3 atmosphere ensures the formation of metasta ble phases. Annealing of the metastable phases, depending on their nit rogen content, results in the formation of intermetallic compounds or nitrides. The formation of nitrides in Fe-Ti alloys ensures the preser vation of fine ferrite grains and high hardness after 2 h of treatment at a temperature of 1563 K.