Fig. 1: Influence of Ni content on SCC resistance.
From: XGBoost model for the quantitative assessment of stress corrosion cracking
a Original Copson Diagram34. Herein, the colour shows the stress conditions for each specimen. Red depicts samples stressed below 90% \({\sigma }_{{YS}}\), while blue represents those stressed at 90% \({\sigma }_{{YS}}\) or above. The samples in this study range from 8 to 77 wt% Ni, 18–20 wt% Cr, with minor inclusions of Si, Mn, Mo, C, N. b Modified Copson Diagram incorporating data from Staehle et al.35 The colour differentiation indicates groups of alloys based on chemical compositions. Group I comprises Fe-Cr-Ni ternary alloys. Group II represents samples with alloy bases of Fe-15Ni-20Cr, Fe-50Ni-5Cr, Fe-76Ni-15Cr, and Fe-45Ni-30Cr, combined with minor additions of elements possessing atomic diameters nearly equivalent to Ni. Group III involves samples with an alloy base of Fe-15Ni-20Cr, and additions of Be, Al, and C. Group IV comprises specimens with 10–15 Cr + 10–20Ni + 0.1–1.25 Be + 0.1–1.25 Al. Group V indicates commercial SS and Ni-base alloys. Adapted from36.
