Magnetometric assessment of the influence of chemical elements on the corrosion of austenitic Fe-Cr-Ni alloys

The role of individual (P, C, Mn, Cr) and combined (Q₂ (S + P), Q₄ (S + P + N + C), Q₆ (S + P + N + C + Si + Mn), Q₈ = Q (S + P + N + C + Si + Mn + Ni + Cr)) elements in five melts of 06KhN28MDT alloy was studied. A correlation was established between the corrosion rate K in chloride-containing environments, specific magnetic susceptibility χ₀ of austenite (matrix), and the percentage content of elements was established. A set of various graphical models of such dependencies was revealed. The positive and negative role of individual and combined elements on the pitting resistance of melts was found.