“…The emission of electrolyte components into the vapor-gas envelope makes diffusion saturation of the part surface possible. Meanwhile, the high heating rate, up to hundreds of degrees per second, contributes to an austenite grain size reduction, increasing diffusion capacity [10,11]. Moreover, simultaneous diffusion saturation with nitrogen and carbon provides an increase in the hardness, wear resistance, fatigue strength, ductility, and impact strength of steel products [12,13].…”