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

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

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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.

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 - 1993
MoE publication type	A1 Journal article-refereed

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

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.",

author = "Pertti Aaltonen and Rauno Rintamaa and Hannu H{\"a}nninen and Ulla Ehrnsten and Esko Arilahti",

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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

N1 - Project code: MET30183

PY - 1993

Y1 - 1993

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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DO - 10.1016/0029-5493(93)90013-Y

M3 - Article

SN - 0029-5493

VL - 144

SP - 111

EP - 122

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

IS - 1

ER -

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

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