What is it about?

It was shown that hydrogen embrittlement (HE) of steel pipelines in contact with the hydrogen environment, together with the transient gas flow and significantly increased transient pressure values, also increases the probability of failure of a cracked pipeline.

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Why is it important?

In this study, the synergistic effects of HE and transient gas flow conditions of the hydrogen-natural gas mixture on the integrity assessment of a precracked steel pipeline were analyzed. The Failure Assessment Diagram (FAD) is used for the safety factor calculation, in order to assess the structural integrity of pipelines.

Perspectives

The future hydrogen economy and the transport of hydrogen through pipelines also depend on the fact how and when scientists will overcome problems related to the degradation of the metallic material in contact with the hydrogen.

Professor Milos B. Djukic
University of Belgrade, Faculty of Mechanical Engineering

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This page is a summary of: The synergistic effects of hydrogen embrittlement and transient gas flow conditions on integrity assessment of a precracked steel pipeline, International Journal of Hydrogen Energy, May 2020, Elsevier, DOI: 10.1016/j.ijhydene.2020.04.262.
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