Hydrogen-Induced Cracking (HIC) is the stepwise internal cracks that connect adjacent hydrogen blisters on different planes in the metal, or to the metal.
Hydrogen Induced Cracking (HIC) is a common form of wet H2S cracking caused by the blistering of a metal due to a high concentration of hydrogen.Â
Hydrogen Induced Cracking can occurs at low temperature
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Wet Fluorescent Magnetic Particle Inspection (WFMPI) is the conventional method for detecting wet H2S cracking which is able to detect sub-surface cracks in the steel caused by HIC.
Wet Fluorescent Magnetic Particle Inspection (WFMPI) is a method used to detect Hydrogen induced cracking
Sulfide stress cracking is a form of hydrogen embrittlement that occurs in high-strength steels and in localized hard zones in weldment of susceptible materials when the environment contains wet H2S.
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Sulfide Stress Cracking is the cracking of a metal under the combined action of tensile stress and corrosion in the presence of water and hydrogen sulfide (a form of hydrogen stress cracking).
SSC has nothing to do with welds.
Atomic hydrogen diffuses into the steel and causes embrittlement of the very narrow hard zones in the heat-affected zones adjacent to welds.
How to prevent Sulfide Stress Cracking (SSC):
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