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Hydrogen Assisted Cracking

Overview of Hydrogen Assisted Cracking

Hydrogen Assisted Cracking, also known by hydrogen induced blister cracking or just hydrogen damage, is a form of material degradation that occurs in metals due to the presence of atomic hydrogen. Though hydrogen is present almost everywhere in the environment, precautions can be taken to ensure hydrogen is not putting process equipment at an unnecessary risk of failure.

There are many forms of hydrogen assisted cracking including:

Inspection of possible hydrogen influenced damages is crucial and must be performed routinely. Ultrasonic testing and other non-destuctive examination techniques such as Time of Flight Diffraction (TOFD) can be used to detect many hydrogen assisted damage mechanisms.

 

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