Abstract
The paper studies changes in the phase composition of typical maraging steel. The analysis performed made it possible to determine the amount of retained austenite depending on the modes of thermal and thermocyclic treatment with heating in the temperature range of α-γ transformation. The processes occurring during heating in the region of α-γ transformation are divided into two temperature regions. As a result, it is noted that the identified patterns in the formation of the phase composition during thermal and thermocyclic treatment with the temperature range of α-γ transformation make it possible to both control changes in the phase composition and properties of steel and predict these changes.
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