Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments

Z. Que; H. P. Seifert; P. Spätig; A. Zhang; J. Holzer; G. S. Rao; S. Ritter

doi:10.1016/j.corsci.2019.03.013

Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments

Z. Que, H. P. Seifert, P. Spätig, A. Zhang, J. Holzer, G. S. Rao, S. Ritter

Not published at VTT

Paul Scherrer Institute (PSI)

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Scopus)

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.

Original language	English
Pages (from-to)	172-189
Number of pages	18
Journal	Corrosion Science
Volume	152
DOIs	https://doi.org/10.1016/j.corsci.2019.03.013
Publication status	Published - 15 May 2019
MoE publication type	A1 Journal article-refereed

Keywords

Dynamic strain ageing
Fracture resistance reduction
Hydrogen embrittlement
Low-alloy steel

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10.1016/j.corsci.2019.03.013

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title = "Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments",

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.",

keywords = "Dynamic strain ageing, Fracture resistance reduction, Hydrogen embrittlement, Low-alloy steel",

author = "Z. Que and Seifert, {H. P.} and P. Sp{\"a}tig and A. Zhang and J. Holzer and Rao, {G. S.} and S. Ritter",

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T1 - Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments

AU - Que, Z.

AU - Seifert, H. P.

AU - Spätig, P.

AU - Zhang, A.

AU - Holzer, J.

AU - Rao, G. S.

AU - Ritter, S.

PY - 2019/5/15

Y1 - 2019/5/15

N2 - 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.

AB - 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.

KW - Dynamic strain ageing

KW - Fracture resistance reduction

KW - Hydrogen embrittlement

KW - Low-alloy steel

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DO - 10.1016/j.corsci.2019.03.013

M3 - Article

AN - SCOPUS:85063092917

SN - 0010-938X

VL - 152

SP - 172

EP - 189

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of dynamic strain ageing on environmental degradation of fracture resistance of low-alloy RPV steels in high-temperature water environments

Abstract

Keywords

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