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Enhanced cracking sensitivity caused by the interaction of internal gaseous hydrogen and external corrosion for low strength pipeline steel

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This study demonstrates enhanced cracking behavior in low strength steel with hydrogen, indicating significant combined effects from corrosion.

The presence of gaseous hydrogen and corrosion significantly increases cracking susceptibility in low strength steel.
Results show both hydrogen embrittlement and external corrosion contribute to distinct crack morphologies observed in specimens.
Using a hollow cylindrical specimen allows for in-depth analysis of gas and corrosion interactions affecting steel integrity.
This research provides insights that may improve safety standards for hydrogen transportation pipelines.

Du et al. (2025) studied this question.

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This study demonstrates enhanced cracking behavior in low strength steel with hydrogen, indicating significant combined effects from corrosion.