Malard, Benoît and Remy, B. and Scott, Colin and Deschamps, Alexis and Chêne, Jacques and Dieudonné, Thomas and Mathon, Marie-Hélène Hydrogen trapping by VC precipitates and structural defects in a high strength Fe-Mn-C steel studied by small-angle neutron scattering. (2012) Materials Science and Engineering A, 536. 110-116. ISSN 0921-5093
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Official URL: http://dx.doi.org/10.1016/j.msea.2011.12.080
Abstract
The trapping of hydrogen by VC precipitates and structural defects in high strength Fe-Mn-C steel was studied by small angle neutron scattering. No interaction between H and V in solid solution has been detected but a significant interaction between H and structural defects introduced by plastic deformation has been measured. This last effect was reversible upon outgassing of the H. Moreover a significant interaction between H and VC precipitates has been measured; 5 ppm wt. of H could be trapped in the precipitates. This is consistent with the homogeneous trapping of H within the precipitates rather than at the precipitate/matrix interface.
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