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ASME Press Select Proceedings
International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments
ISBN:
9780791861387
No. of Pages:
800
Publisher:
ASME Press
Publication date:
2017
eBook Chapter
Hydrogen-Related Fracture Behavior Under Stress Concentration in Low Carbon Martensitic Steel
Page Count:
7
-
Published:2017
Citation
Yonemura, T, Momotani, Y, Shibata, A, Takagi, S, & Tsuji, N. "Hydrogen-Related Fracture Behavior Under Stress Concentration in Low Carbon Martensitic Steel." International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments. Ed. Somerday, BP, & Sofronis, P. ASME Press, 2017.
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The present study investigated the hydrogen-related fracture behavior under stress concentration in a low-carbon martensitic steel. Double-notched sheet-type specimens with different diffusible hydrogen contents were prepared, and tensile tests were performed until just before the fracture for observing the crack initiation and propagation. When the specimen contained the smaller amount of diffusible hydrogen, a large crack formed at the position where the equivalent plastic strain was the largest. The crack propagated mainly along {011} planes within prior austenite grains. By contrast, in the case that the specimen contained the larger amount of diffusible hydrogen, the hydrostatic tensile stress controlled the...
Introduction
Experimental
FEM Simulation
Results and Discussion
Conclusion
Acknowledgements
References
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