Modelling of environmentally assisted cracking

Pertti Aaltonen, Timo Saario, Hannu Hänninen, Jussi Piippo, Ulla Ehrnsten, Marjo Itäaho

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

During the use of nuclear reactors the properties of the structural materials change. Variations in the operation environment, such as changes in water chemistry, may enhance the development and growth of flaws. Neutron radiation causes embrittlement for in-core vessel materials. Radiation, together with water chemistry, increases the possibility of stress corrosion cracking in stainless steels and superalloys used in the reactor internal parts. Research on structural materials endeavours to study the ageing mechanisms of materials, and the possibilities and methods of preventing or forecasting the damage caused to structures by ageing.
Original languageEnglish
Title of host publicationRATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants
Subtitle of host publicationSynthesis of achievements 1995-1998
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages125-144
ISBN (Electronic)951-38-5264-4
ISBN (Print)951-38-5263-6
Publication statusPublished - 1998
MoE publication typeA4 Article in a conference publication
EventRATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995−1998 - Espoo, Finland
Duration: 7 Dec 19987 Dec 1998

Publication series

SeriesVTT Symposium
Number190
ISSN0357-9387

Conference

ConferenceRATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants
CountryFinland
CityEspoo
Period7/12/987/12/98

Fingerprint

water chemistry
modeling
growth and development
corrosion
vessel
steel
damage
material
radiation
reactor
nuclear reactor
method

Cite this

Aaltonen, P., Saario, T., Hänninen, H., Piippo, J., Ehrnsten, U., & Itäaho, M. (1998). Modelling of environmentally assisted cracking. In RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995-1998 (pp. 125-144). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 190
Aaltonen, Pertti ; Saario, Timo ; Hänninen, Hannu ; Piippo, Jussi ; Ehrnsten, Ulla ; Itäaho, Marjo. / Modelling of environmentally assisted cracking. RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995-1998. Espoo : VTT Technical Research Centre of Finland, 1998. pp. 125-144 (VTT Symposium; No. 190).
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abstract = "During the use of nuclear reactors the properties of the structural materials change. Variations in the operation environment, such as changes in water chemistry, may enhance the development and growth of flaws. Neutron radiation causes embrittlement for in-core vessel materials. Radiation, together with water chemistry, increases the possibility of stress corrosion cracking in stainless steels and superalloys used in the reactor internal parts. Research on structural materials endeavours to study the ageing mechanisms of materials, and the possibilities and methods of preventing or forecasting the damage caused to structures by ageing.",
author = "Pertti Aaltonen and Timo Saario and Hannu H{\"a}nninen and Jussi Piippo and Ulla Ehrnsten and Marjo It{\"a}aho",
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language = "English",
isbn = "951-38-5263-6",
series = "VTT Symposium",
publisher = "VTT Technical Research Centre of Finland",
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Aaltonen, P, Saario, T, Hänninen, H, Piippo, J, Ehrnsten, U & Itäaho, M 1998, Modelling of environmentally assisted cracking. in RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995-1998. VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 190, pp. 125-144, RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants, Espoo, Finland, 7/12/98.

Modelling of environmentally assisted cracking. / Aaltonen, Pertti; Saario, Timo; Hänninen, Hannu; Piippo, Jussi; Ehrnsten, Ulla; Itäaho, Marjo.

RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995-1998. Espoo : VTT Technical Research Centre of Finland, 1998. p. 125-144 (VTT Symposium; No. 190).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Modelling of environmentally assisted cracking

AU - Aaltonen, Pertti

AU - Saario, Timo

AU - Hänninen, Hannu

AU - Piippo, Jussi

AU - Ehrnsten, Ulla

AU - Itäaho, Marjo

PY - 1998

Y1 - 1998

N2 - During the use of nuclear reactors the properties of the structural materials change. Variations in the operation environment, such as changes in water chemistry, may enhance the development and growth of flaws. Neutron radiation causes embrittlement for in-core vessel materials. Radiation, together with water chemistry, increases the possibility of stress corrosion cracking in stainless steels and superalloys used in the reactor internal parts. Research on structural materials endeavours to study the ageing mechanisms of materials, and the possibilities and methods of preventing or forecasting the damage caused to structures by ageing.

AB - During the use of nuclear reactors the properties of the structural materials change. Variations in the operation environment, such as changes in water chemistry, may enhance the development and growth of flaws. Neutron radiation causes embrittlement for in-core vessel materials. Radiation, together with water chemistry, increases the possibility of stress corrosion cracking in stainless steels and superalloys used in the reactor internal parts. Research on structural materials endeavours to study the ageing mechanisms of materials, and the possibilities and methods of preventing or forecasting the damage caused to structures by ageing.

M3 - Conference article in proceedings

SN - 951-38-5263-6

T3 - VTT Symposium

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EP - 144

BT - RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Aaltonen P, Saario T, Hänninen H, Piippo J, Ehrnsten U, Itäaho M. Modelling of environmentally assisted cracking. In RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants: Synthesis of achievements 1995-1998. Espoo: VTT Technical Research Centre of Finland. 1998. p. 125-144. (VTT Symposium; No. 190).