Cyclic crack growth evaluation of a 20MnMoNi55 piping steel in high-oxygen reactor water

Pertti Aaltonen, Rauno Rintamaa, Hannu Hänninen, Ulla Ehrnsten, Esko Arilahti

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Samples of a low alloy steel piping material taken from the full scale corrosion fatigue test loop of the Heissdampfreaktor (HDR) plant have been tested at 240°C in high oxygen reactor water. The small-scale specimens (CT25) were exposed to a similar loading spectrum to that which has been used in the full-scale corrosion fatigue tests at the HDR-plant. During the autoclave tests cyclic crack growth rates were determined. Fracture surface investigations were performed not only for the laboratory test specimens but also for the fracture surface of a sample taken from the HDR test loop piping after the full scale test. In this paper the autoclave testing results and fracture surface observations are presented and compared to those obtained in the HDR piping tests.

Original languageEnglish
Pages (from-to)111 - 122
Number of pages12
JournalNuclear Engineering and Design
Volume144
Issue number1
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

Fingerprint

Steel
piping
Crack propagation
Corrosion fatigue
crack
cracks
steel
reactors
Autoclaves
steels
Oxygen
scale (corrosion)
oxygen
Water
evaluation
autoclaves
fatigue tests
water
High strength steel
fatigue

Cite this

Aaltonen, Pertti ; Rintamaa, Rauno ; Hänninen, Hannu ; Ehrnsten, Ulla ; Arilahti, Esko. / Cyclic crack growth evaluation of a 20MnMoNi55 piping steel in high-oxygen reactor water. In: Nuclear Engineering and Design. 1993 ; Vol. 144, No. 1. pp. 111 - 122.
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abstract = "Samples of a low alloy steel piping material taken from the full scale corrosion fatigue test loop of the Heissdampfreaktor (HDR) plant have been tested at 240°C in high oxygen reactor water. The small-scale specimens (CT25) were exposed to a similar loading spectrum to that which has been used in the full-scale corrosion fatigue tests at the HDR-plant. During the autoclave tests cyclic crack growth rates were determined. Fracture surface investigations were performed not only for the laboratory test specimens but also for the fracture surface of a sample taken from the HDR test loop piping after the full scale test. In this paper the autoclave testing results and fracture surface observations are presented and compared to those obtained in the HDR piping tests.",
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Cyclic crack growth evaluation of a 20MnMoNi55 piping steel in high-oxygen reactor water. / Aaltonen, Pertti; Rintamaa, Rauno; Hänninen, Hannu; Ehrnsten, Ulla; Arilahti, Esko.

In: Nuclear Engineering and Design, Vol. 144, No. 1, 1993, p. 111 - 122.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Cyclic crack growth evaluation of a 20MnMoNi55 piping steel in high-oxygen reactor water

AU - Aaltonen, Pertti

AU - Rintamaa, Rauno

AU - Hänninen, Hannu

AU - Ehrnsten, Ulla

AU - Arilahti, Esko

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AB - Samples of a low alloy steel piping material taken from the full scale corrosion fatigue test loop of the Heissdampfreaktor (HDR) plant have been tested at 240°C in high oxygen reactor water. The small-scale specimens (CT25) were exposed to a similar loading spectrum to that which has been used in the full-scale corrosion fatigue tests at the HDR-plant. During the autoclave tests cyclic crack growth rates were determined. Fracture surface investigations were performed not only for the laboratory test specimens but also for the fracture surface of a sample taken from the HDR test loop piping after the full scale test. In this paper the autoclave testing results and fracture surface observations are presented and compared to those obtained in the HDR piping tests.

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