Abstract

The austenitic and austenitic-martensitic aging 15Cr(5-10)Ni2CuMoV(Nb)Ti-N-based steels were elaborated and investigated. These steels combine advantages of austenitic and martensitic steels and allow wide variety of phase compositions and mechanical properties For nitrogen-containing austenitic and austenitic-martensitic steels it is possible to achieve, due to stress-induced martensitic transformation and thermomechanical treatment optimization, the strength level of martensitic-austenitic steels in a combination with high plasticity and fracture toughness inherent in pure austenitic structures, At the same time corrosion resistance of these steels in low-aggressive media is preserved and wear resistante increases as twice.

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