International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Using an originally developed laboratory controlled air cooling automatic device regimes of controlled fasted normalization of low and middle carbon steel were studied. Significant improving of the steel structure was shown. The proposed technologies of controlled air cooling could be useful for small metal products of middle carbon steels heat treatment as an advanced normalization process.

Effective modification not by expensive nano-powders but by relatively large ones (up to several microns) and capable to dissolve when entering into the melt and become additional crystallization centers at its start point was shown. That provides a metal structure refinement and, consequently, increases the whole complex of mechanical properties. The optimal process parameters of refractory compounds disperse powders modification were proposed.