Static and cyclic crack growth of low alloy steels in high-oxygen water simulating HDR test conditions

Hannu Hänninen (Corresponding Author), Pertti Aaltonen, Rauno Rintamaa, Esko Arilahti, Ulla Ehrnsten

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Steel samples of reactor pressure vessel and piping steels from the German HDR programme have been tested in high oxygen water at different temperatures simulating HDR test conditions. The specimens have been exposed to sequences of static and cyclic loading or to purely cyclic loading. During the tests, threshold stress intensity values for stress corrosion cracking and crack growth rates with various cyclic loading parameters were determined. Extensive fracture surface and oxide layer investigations were also performed. Water chemistry parameters such as dissolved oxygen content, pH and conductivity were continuously monitored during the tests. Finally, the measured laboratory water chemistry parameters were compared to those measured in the HDR plant during full scale testing of components and the relevance of the results for normally operating plants is discussed.
Original languageEnglish
Pages (from-to)291-304
Number of pages14
JournalNuclear Engineering and Design
Volume137
Issue number3
DOIs
Publication statusPublished - 1992
MoE publication typeA1 Journal article-refereed

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high strength steels
cyclic loading
High strength steel
Crack propagation
crack
cracks
steel
Steel
Oxygen
water chemistry
oxygen
Water
water
piping
steels
Dissolved oxygen
chemistry
Stress corrosion cracking
Pressure vessels
stress corrosion cracking

Cite this

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title = "Static and cyclic crack growth of low alloy steels in high-oxygen water simulating HDR test conditions",
abstract = "Steel samples of reactor pressure vessel and piping steels from the German HDR programme have been tested in high oxygen water at different temperatures simulating HDR test conditions. The specimens have been exposed to sequences of static and cyclic loading or to purely cyclic loading. During the tests, threshold stress intensity values for stress corrosion cracking and crack growth rates with various cyclic loading parameters were determined. Extensive fracture surface and oxide layer investigations were also performed. Water chemistry parameters such as dissolved oxygen content, pH and conductivity were continuously monitored during the tests. Finally, the measured laboratory water chemistry parameters were compared to those measured in the HDR plant during full scale testing of components and the relevance of the results for normally operating plants is discussed.",
author = "Hannu H{\"a}nninen and Pertti Aaltonen and Rauno Rintamaa and Esko Arilahti and Ulla Ehrnsten",
year = "1992",
doi = "10.1016/0029-5493(92)90252-Q",
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pages = "291--304",
journal = "Nuclear Engineering and Design",
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Static and cyclic crack growth of low alloy steels in high-oxygen water simulating HDR test conditions. / Hänninen, Hannu (Corresponding Author); Aaltonen, Pertti; Rintamaa, Rauno; Arilahti, Esko; Ehrnsten, Ulla.

In: Nuclear Engineering and Design, Vol. 137, No. 3, 1992, p. 291-304.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Static and cyclic crack growth of low alloy steels in high-oxygen water simulating HDR test conditions

AU - Hänninen, Hannu

AU - Aaltonen, Pertti

AU - Rintamaa, Rauno

AU - Arilahti, Esko

AU - Ehrnsten, Ulla

PY - 1992

Y1 - 1992

N2 - Steel samples of reactor pressure vessel and piping steels from the German HDR programme have been tested in high oxygen water at different temperatures simulating HDR test conditions. The specimens have been exposed to sequences of static and cyclic loading or to purely cyclic loading. During the tests, threshold stress intensity values for stress corrosion cracking and crack growth rates with various cyclic loading parameters were determined. Extensive fracture surface and oxide layer investigations were also performed. Water chemistry parameters such as dissolved oxygen content, pH and conductivity were continuously monitored during the tests. Finally, the measured laboratory water chemistry parameters were compared to those measured in the HDR plant during full scale testing of components and the relevance of the results for normally operating plants is discussed.

AB - Steel samples of reactor pressure vessel and piping steels from the German HDR programme have been tested in high oxygen water at different temperatures simulating HDR test conditions. The specimens have been exposed to sequences of static and cyclic loading or to purely cyclic loading. During the tests, threshold stress intensity values for stress corrosion cracking and crack growth rates with various cyclic loading parameters were determined. Extensive fracture surface and oxide layer investigations were also performed. Water chemistry parameters such as dissolved oxygen content, pH and conductivity were continuously monitored during the tests. Finally, the measured laboratory water chemistry parameters were compared to those measured in the HDR plant during full scale testing of components and the relevance of the results for normally operating plants is discussed.

U2 - 10.1016/0029-5493(92)90252-Q

DO - 10.1016/0029-5493(92)90252-Q

M3 - Article

VL - 137

SP - 291

EP - 304

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

SN - 0029-5493

IS - 3

ER -