Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments
Que, Z.; Seifert, H.P.; Spätig, P.; Zhang, A.; Holzer, J.; Rao, G.S.; Ritter, S.
2019

Abstract

Elastic plastic fracture mechanics tests on different low-alloy reactor pressure vessel (RPV) steels in air and various simulated light water reactor environments revealed a clear, but moderate reduction of the fracture initiation resistance of RPV steels with high susceptibility to dynamic strain ageing (DSA) in high-temperature water (HTW). In HTW, the reduction of fracture initiation resistance increased with decreasing loading rate and was most pronounced in hydrogenated HTW. The stronger reduction of fracture resistance in hydrogenated HTW was mainly due to the localization of plastic deformation by interaction between DSA and hydrogen.

Details

Title Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments
Author(s) Que, Z. ; Seifert, H.P. ; Spätig, P. ; Zhang, A. ; Holzer, J. ; Rao, G.S. ; Ritter, S.
Published in Corrosion Science
Volume 152
Pages 172-189
Date 2019-05-15
DOI https://doi.org/10.1016/j.corsci.2019.03.013
Other identifier(s) DOI: https://doi.org/10.1016/j.corsci.2019.03.013
Laboratories LRS
Record Appears in Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LRS - Laboratory of Reactor Physics and Systems Behaviour
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2019-11-30

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