Notch Effect on the Corrosion Fatigue Behavior of an Austenitic Stainless Steel
The objective of this study is to characterize the influence of notch effect on the high-cycle corrosion fatigue properties of AISI 347 stainless steel in various environments, namely, air, water, NaCl, NaCl plus inhibitor, and H2SO4 solutions. For smooth-surface and semi-circular notch specimens, the rank of fatigue strength in all of the given environments generally took the following order: air ≈ salt water plus inhibitor > deionized water > salt water > sulfuric acid solution. For V-notch specimens, the S-N curves were separated into two groups, i.e. one with air and 3.5% NaCl plus inhibitor and the other with deionized water, 3.5% NaCl and H2SO4. This was attributed to a greater effect of localized acidification occurring at the root of V-notch as compared to the smooth surface and semi-circular notch.
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
C. K. Lin and P. F. Kuo, "Notch Effect on the Corrosion Fatigue Behavior of an Austenitic Stainless Steel", Key Engineering Materials, Vols. 345-346, pp. 995-998, 2007