PRODUCTS FROM THE AUSTENITE STEELS DIFFUSION SATURATION METHOD Russian patent published in 2019 - IPC C23C2/10 C22C11/02 

FIELD: technological processes.

SUBSTANCE: invention relates to the technologies enabling increase in the made from austenitic steels products resistance to mechanical effects and to the aggressive working environments effects due to their surface layers composition and structure changing, and can be used to increase the products service life, increase their loading, in particular, to increase the valves wear resistance and corrosion resistance. Made from austenitic steels products wear resistance and corrosion resistance increasing method is proposed, including the product diffusion saturation in the lead, lithium, nickel and chromium containing melt, at a temperature of 650–1,250 °C, at that, before the diffusion saturation, the product is exposed to cementation at a temperature of 850–900 °C for 3–5 hours, and after diffusion saturation is to repeated cementation at temperatures of 850–1,050 °C for 2–10 hours.

EFFECT: proposed method allows to increase made from the austenitic steels products wear resistance and, accordingly, to increase made of the austenitic steels products wear resistance and operational life under conditions of the high contact stresses and the working environment aggressive impact thereon.

1 cl, 1 tbl, 4 ex