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Strain-life performance in hydrogen of DOT pressure vessel steel



May Ling Martin, Peter Bradley, Damian Lauria, Robert L. Amaro, Matthew Connolly, Andrew Slifka


Strain-life testing of a 4130 pressure vessel steel was conducted in air and in a high-pressure gaseous-hydrogen environment. Hydrogen causes an order of magnitude decrease in lifetime compared to in-air performance at the same strain-amplitudes. This decrease in lifetime in hydrogen is accompanied by various effects, such as a shift in the cyclic stress-strain curve, different influences on the elastic and plastic components of the strain-life data, and a distinct difference in the evolution of the microstructural texture prior to failure. For comparison, preliminary data from testing of a higher strength pressure vessel steel is presented, showing a difference in elastic/plastic partitioning may be accompanied by a difference in reduction in lifetime due to hydrogen.
Proceedings Title
ASME PVP 2022 - Pressure Vessels & Piping Conference
Conference Dates
July 17-22, 2022
Conference Location
Las Vegas, NV, US


hydrogen, fatigue, strain-life, damage


Martin, M. , Bradley, P. , Lauria, D. , Amaro, R. , Connolly, M. and Slifka, A. (2022), Strain-life performance in hydrogen of DOT pressure vessel steel, ASME PVP 2022 - Pressure Vessels & Piping Conference, Las Vegas, NV, US, [online], (Accessed July 15, 2024)


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Created November 7, 2022, Updated November 29, 2022