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Hydrogen induced plastic deformation of stainless steel

Published online by Cambridge University Press:  10 February 2011

V. J. Gadgil ,
E. G. Keima  and
H. J. M. Geijselaers
V. J. Gadgil
Affiliation:
Centre of Materials Research [CMO], EL-TN Building, University of Twente
E. G. Keima
Affiliation:
Centre of Materials Research [CMO], EL-TN Building, University of Twente
H. J. M. Geijselaers
Affiliation:
Applied Mechanics Section, Department of Mechanical Engineering, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Abstract

Hydrogen can influence the behaviour of materials significantly. The effects of hydrogen are specially pronounced in high fugacities of hydrogen which can occur at the surface of steels in contact with certain aqueous environments. In this investigation the effect of high fugacity hydrogen on the surface of stainless steel was investigated using electrochemical cathodic charging. Microhardness was measured on the cross section. Transmission electron microscopy was used to investigate the dislocation substructure just below the surface. Computer simulation using finite element method was carried out to estimate the extent and severity of the deformation. The significance of the results are discussed in relation to the loss of ductility due to hydrogen.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 513: Symposium H – Hydrogen in Semiconductors and Metals , 1998 , 299
Copyright
Copyright © Materials Research Society 1998

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References

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