Effect of dynamic strain ageing and steel sulphur content on hydrogen embrittlement in low alloy RPV steels

G. Sudhakar Rao, Zaiqing Que, Hans Peter Seifert, Philippe Spätig, Stefan Ritter

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

Influence of hydrogen in three different low alloy reactor pressure vessel steels with different sulphur contents, dynamic strain aging (DSA), and environmentally-assisted cracking (EAC) susceptibilities was investigated. The severity of hydrogen embrittlement was found to increase with the degree of DSA. The fracture behavior showed cleavage, quasi-cleavage and intergranular fracture along with localized shear deformed region. The underlying mechanisms were associated with plastic strain localization, nano-void nucleation and intergranular fracture.
Original languageEnglish
Title of host publication14th International Conference on Fracture 2017 (ICF-14)
EditorsEmmanuel E. Gdoutos
Pages393-394
Number of pages2
Volume1
Publication statusPublished - 2017
MoE publication typeNot Eligible

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