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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

This study investigated crystallographic features of hydrogen-related fracture behavior in a medium carbon steel. With decrease of tempering temperature, elongation of the hydrogen-charged specimen decreased, and the fracture mode changed from transgranular fracture to intergranular fracture at prior austenite grain boundary. The orientation analysis using electron backscatter diffraction revealed that the hydrogen-related fracture surfaces for both transgranular fracture and intergranular fracture were irregular and consisted of small facets parallel to {011} planes of martensite. As the {011} planes are slip planes of martensite, it can be concluded that the hydrogen-related fracture was accompanied by local plastic deformation.

Introduction
Experimental Procedure
Results and Discussion
Conclusions
Acknowledgements
References
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