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International Hydrogen Conference (IHC 2012): Hydrogen-Materials Interactions

Editor
B. P. Somerday
B. P. Somerday
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P. Sofronis
P. Sofronis
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ISBN:
9780791860298
No. of Pages:
844
Publisher:
ASME Press
Publication date:
2014

The effects of strain-induced martensite were investigated on hydrogen charged TRIP sheet steel. Tensile samples were pre-strained 5% at -20 °C, 23 °C, and 102 °C to create three distinct microstructures with 10.5%, 5.5%, and 0.5% strain-induced martensite, respectively, and subsequently charged with low levels of hydrogen (1–2 ppm) and tested to failure at room temperature. Ductility loss was observed in all charged TRIP steel and martensite fracture was observed as the predominant microstructural damage. Untempered strain-induced martensite has been shown to be susceptible to hydrogen embrittlement; however, ductility loss did not scale accordingly with greater strain-induced martensite in charged...

Introduction
Experimental Procedure
Results
Discussion
Conclusions
Acknowledgements
References
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