Are there any differences in the conditions under which hydrogen sulfide causes corrosion cracking and bulging?
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Hydrogen sulfide corrosion in the refinery; obvious cracks on the heat exchanger shell, with no bulging； The LPG cylinders and propane cylinders are all bulging. Are there any differences in the conditions that lead to corrosion-induced cracking and bulging of hydrogen sulfide?
There is no difference in terms of the medium; it mainly depends on the location of the defect in the device itself. A single defective hydrogen blister; when these blisters come together, they cause hydrogen-induced cracking.
HB HIC SOHIC are collectively referred to as hydrogen damage. The cracking occurs differently in the longitudinal and transverse directions. The mechanisms essentially revolve around two types: anodic dissolution type and cathodic crispness type.