Strengthening of nitrogen-microalloyed medium-carbon structural steels by HTMT with deformation by radial-shear rolling

The effect of thermomechanical treatment with different hot deformation on the structure and mechanical properties of structural steels (20 – 50)KhNMAF, microalloyed with nitrogen, is studied and analyzed. On the basis of analyzing tensile test results, hardness measurement, and a study of steel grain structure temperature regimes and stress–strain state, schemes are selected making it possible to use the test steels as high-strength materials, especially for components where high strength and ductility are important in a specific direction.