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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Hydrogen embrittlement
High strength steel
Sulfur
Aging of materials
Steel
Steel structures
Plastic deformation
Nucleation
Hydrogen

Cite this

Sudhakar Rao, G., Que, Z., Seifert, H. P., Spätig, P., & Ritter, S. (2017). Effect of dynamic strain ageing and steel sulphur content on hydrogen embrittlement in low alloy RPV steels. In E. E. Gdoutos (Ed.), 14th International Conference on Fracture 2017 (ICF-14) (Vol. 1, pp. 393-394)
Sudhakar Rao, G. ; Que, Zaiqing ; Seifert, Hans Peter ; Spätig, Philippe ; Ritter, Stefan. / Effect of dynamic strain ageing and steel sulphur content on hydrogen embrittlement in low alloy RPV steels. 14th International Conference on Fracture 2017 (ICF-14). editor / Emmanuel E. Gdoutos. Vol. 1 2017. pp. 393-394
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Sudhakar Rao, G, Que, Z, Seifert, HP, Spätig, P & Ritter, S 2017, Effect of dynamic strain ageing and steel sulphur content on hydrogen embrittlement in low alloy RPV steels. in EE Gdoutos (ed.), 14th International Conference on Fracture 2017 (ICF-14). vol. 1, pp. 393-394.

Effect of dynamic strain ageing and steel sulphur content on hydrogen embrittlement in low alloy RPV steels. / Sudhakar Rao, G.; Que, Zaiqing; Seifert, Hans Peter; Spätig, Philippe; Ritter, Stefan.

14th International Conference on Fracture 2017 (ICF-14). ed. / Emmanuel E. Gdoutos. Vol. 1 2017. p. 393-394.

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

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AU - Ritter, Stefan

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AB - 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.

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Sudhakar Rao G, Que Z, Seifert HP, Spätig P, Ritter S. Effect of dynamic strain ageing and steel sulphur content on hydrogen embrittlement in low alloy RPV steels. In Gdoutos EE, editor, 14th International Conference on Fracture 2017 (ICF-14). Vol. 1. 2017. p. 393-394