Journal
ACTA MATERIALIA
Volume 82, Issue -, Pages 266-274Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2014.09.013
Keywords
Palladium; Hydrogen embrittlement; Plastic deformation; Dislocation density; Diffusion
Funding
- Deutsche Forschungsgemeinschaft [KI-230/34]
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The effect of dissolved hydrogen on the dislocation density in cold-rolled palladium was investigated in order to provide evidence of a line energy reduction caused by hydrogen dislocation interaction as proposed by the defactant concept. For this issue, palladium samples were electrochemically charged with hydrogen and subsequently cold rolled. Using conventional methods (X-ray diffraction, transmission electron microscopy) and a newly developed diffusion method, it was shown that the dislocation density after deformation increases with increasing hydrogen concentration. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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