Morphology of cracks on tension side (left) and of localized attack on compression side (right) of 3-1/2% Ni U-bend specimen exposed at EOC in a 0.5 wt% acetic acid solution saturated with H2S at a total pressure of 1 atm (magnification 200X). After Dunlop, A. K. Stress Corrosion Cracking of Low Strength, “Low Alloy Nickel Steels in Sulfide Environments.” Corrosion 34, 88-96, doi: 10.5006/0010-9312-34.3.88 (1978).