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

Pertti Aaltonen; Rauno Rintamaa; Hannu Hänninen; Ulla Ehrnstén; Esko Arilahti

doi:10.1016/0029-5493(93)90013-Y

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

Pertti Aaltonen^*, Rauno Rintamaa, Hannu Hänninen, Ulla Ehrnstén, Esko Arilahti

^*Corresponding author for this work

Not published at Aalto University

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-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 language	English
Pages (from-to)	111-122
Number of pages	12
Journal	Nuclear Engineering and Design
Volume	144
Issue number	1
DOIs	https://doi.org/10.1016/0029-5493(93)90013-Y
Publication status	Published - 1 Oct 1993
MoE publication type	A1 Journal article-refereed

Keywords

crack growth
high oxygen water
piping steel

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10.1016/0029-5493(93)90013-Y

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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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AU - Aaltonen, Pertti

AU - Rintamaa, Rauno

AU - Hänninen, Hannu

AU - Ehrnstén, Ulla

AU - Arilahti, Esko

PY - 1993/10/1

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N2 - 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.

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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KW - piping steel

KW - crack growth

KW - high oxygen water

KW - piping steel

KW - crack growth

KW - high oxygen water

KW - piping steel

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

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Keywords

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