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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

Influences of the microstructure of quenched and tempered martensitic steels on the diffusion and trapping of hydrogen under different mechanical states are investigated. Different steels were compared in terms of microstructural parameters that could interact with hydrogen. Electrochemical permeation and thermal desorption spectroscopy performed at different temperatures permit to define the hydrogen diffusion and trapping features. Good agreements were obtained between electrochemical permeation modeling and experimental results deduced from TDS. Hydrogen trapping and diffusion can be discussed in relation with microstructural features (vacancy, dislocation, precipitate, geometrically necessary boundary…) and mechanical states (elastic and microplastic regimes).

Introduction
Discussion on the Correlation Between Electrochemical Permeation (EP) and Thermal Desorption Spectroscopy (TDS) Results
Interaction of Hydrogen with Defects and Stress-Strain Fields
Conclusions
References
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