BR2/CHIVAS Irradation in support of enhanced surveillance of  nuclear reactor pressure vessels

Albert Fabry; Serge Bodart; Paul de Bakker; Rachid Chaouadi; Luigi Puzzolante; Eric van Walle; José Van de Velde; Robert Gérard

BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels

Albert Fabry, Serge Bodart, Paul de Bakker, Rachid Chaouadi, Luigi Puzzolante, Eric van Walle, José Van de Velde, Robert Gérard

Mechanical and Corrosion Analyses

Research output › peer-review

Abstract

An enhanced reactor pressure vessel surveillance technology is being developed in Belgium. The aim is to determine in-service shifts of static initiations fracture toughness in a more direct and precise manner than possible through the current indexation procedure to the CVN impact test.The technology entails the reconstruction, precracking and slow bend testing of broken CVN remnants, and emphasizes the maximization of information by combining static tensile dislocation theory and micromechanical modeling provide the interpretation tools allowing to justify plant-specific embrittlement trend curves.
This enhanced surveillance technology is being actively validated. An important component in this effort is BR2/Chivas Accelerated Irradiated an Testing Programme, summarized in this paper.
The results of the first irradiaton to 5 E19 cm^-2 (>1MeV, nominal) at a temperature of 290°C are presented, as well as preliminary data from an irradiation to the same fluence at 260°C. The lower temperature was selected to match the operation temperatures of the recently sampled BR3 and Chooz-A vessels; the results obtained by BR2/CHIVAS exposure of BR3 base metal specimens are compared to the results from the vessel testing programme.

Original language	English
Title of host publication	IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland
Publisher	IAEA - International Atomic Energy Agency
Pages	245-266
Number of pages	21
Volume	1
State	Published - 1995
Event	1995 - IAEA Specialists Meeting on Irradiation Embrittlement and Mitigation - Espoo Duration: 23 Oct 1995 → 26 Oct 1995

Conference

Conference	1995 - IAEA Specialists Meeting on Irradiation Embrittlement and Mitigation
Country/Territory	Finland
City	Espoo
Period	1995-10-23 → 1995-10-26

Access to Document

Cite this

Fabry, A., Bodart, S., de Bakker, P., Chaouadi, R., Puzzolante, L., van Walle, E., Van de Velde, J., & Gérard, R. (1995). BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels. In IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland (Vol. 1, pp. 245-266). Article IWG-LMNPP-95/5 IAEA - International Atomic Energy Agency. https://www.osti.gov/etdeweb/biblio/193968

@inproceedings{17ed02b30e8641f5a6ce4f005caf5bc9,

title = "BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels",

abstract = "An enhanced reactor pressure vessel surveillance technology is being developed in Belgium. The aim is to determine in-service shifts of static initiations fracture toughness in a more direct and precise manner than possible through the current indexation procedure to the CVN impact test.The technology entails the reconstruction, precracking and slow bend testing of broken CVN remnants, and emphasizes the maximization of information by combining static tensile dislocation theory and micromechanical modeling provide the interpretation tools allowing to justify plant-specific embrittlement trend curves.This enhanced surveillance technology is being actively validated. An important component in this effort is BR2/Chivas Accelerated Irradiated an Testing Programme, summarized in this paper.The results of the first irradiaton to 5 E19 cm^-2 (>1MeV, nominal) at a temperature of 290°C are presented, as well as preliminary data from an irradiation to the same fluence at 260°C. The lower temperature was selected to match the operation temperatures of the recently sampled BR3 and Chooz-A vessels; the results obtained by BR2/CHIVAS exposure of BR3 base metal specimens are compared to the results from the vessel testing programme.",

keywords = "Reactor pressure vessel, CVN, Embrittlement, BR2, CHIVAS, BR3 base metal specimen",

author = "Albert Fabry and Serge Bodart and {de Bakker}, Paul and Rachid Chaouadi and Luigi Puzzolante and {van Walle}, Eric and {Van de Velde}, Jos{\'e} and Robert G{\'e}rard",

note = "IWG-LMNPP-95/5 ; 1995 - IAEA Specialists Meeting on Irradiation Embrittlement and Mitigation ; Conference date: 23-10-1995 Through 26-10-1995",

year = "1995",

language = "English",

volume = "1",

pages = "245--266",

booktitle = "IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland",

publisher = "IAEA - International Atomic Energy Agency",

address = "Austria",

}

Fabry, A, Bodart, S, de Bakker, P, Chaouadi, R , Puzzolante, L , van Walle, E, Van de Velde, J & Gérard, R 1995, BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels. in IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland. vol. 1, IWG-LMNPP-95/5 , IAEA - International Atomic Energy Agency, pp. 245-266, 1995 - IAEA Specialists Meeting on Irradiation Embrittlement and Mitigation, Espoo, Finland, 1995-10-23. <https://www.osti.gov/etdeweb/biblio/193968>

BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels. / Fabry, Albert; Bodart, Serge; de Bakker, Paul et al.
IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland. Vol. 1 IAEA - International Atomic Energy Agency, 1995. p. 245-266 IWG-LMNPP-95/5 .

Research output › peer-review

TY - GEN

T1 - BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels

AU - Fabry, Albert

AU - Bodart, Serge

AU - de Bakker, Paul

AU - Chaouadi, Rachid

AU - Puzzolante, Luigi

AU - van Walle, Eric

AU - Van de Velde, José

AU - Gérard, Robert

N1 - IWG-LMNPP-95/5

PY - 1995

Y1 - 1995

N2 - An enhanced reactor pressure vessel surveillance technology is being developed in Belgium. The aim is to determine in-service shifts of static initiations fracture toughness in a more direct and precise manner than possible through the current indexation procedure to the CVN impact test.The technology entails the reconstruction, precracking and slow bend testing of broken CVN remnants, and emphasizes the maximization of information by combining static tensile dislocation theory and micromechanical modeling provide the interpretation tools allowing to justify plant-specific embrittlement trend curves.This enhanced surveillance technology is being actively validated. An important component in this effort is BR2/Chivas Accelerated Irradiated an Testing Programme, summarized in this paper.The results of the first irradiaton to 5 E19 cm^-2 (>1MeV, nominal) at a temperature of 290°C are presented, as well as preliminary data from an irradiation to the same fluence at 260°C. The lower temperature was selected to match the operation temperatures of the recently sampled BR3 and Chooz-A vessels; the results obtained by BR2/CHIVAS exposure of BR3 base metal specimens are compared to the results from the vessel testing programme.

AB - An enhanced reactor pressure vessel surveillance technology is being developed in Belgium. The aim is to determine in-service shifts of static initiations fracture toughness in a more direct and precise manner than possible through the current indexation procedure to the CVN impact test.The technology entails the reconstruction, precracking and slow bend testing of broken CVN remnants, and emphasizes the maximization of information by combining static tensile dislocation theory and micromechanical modeling provide the interpretation tools allowing to justify plant-specific embrittlement trend curves.This enhanced surveillance technology is being actively validated. An important component in this effort is BR2/Chivas Accelerated Irradiated an Testing Programme, summarized in this paper.The results of the first irradiaton to 5 E19 cm^-2 (>1MeV, nominal) at a temperature of 290°C are presented, as well as preliminary data from an irradiation to the same fluence at 260°C. The lower temperature was selected to match the operation temperatures of the recently sampled BR3 and Chooz-A vessels; the results obtained by BR2/CHIVAS exposure of BR3 base metal specimens are compared to the results from the vessel testing programme.

KW - Reactor pressure vessel

KW - CVN

KW - Embrittlement

KW - BR2

KW - CHIVAS

KW - BR3 base metal specimen

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/56717178

M3 - In-proceedings paper

VL - 1

SP - 245

EP - 266

BT - IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland

PB - IAEA - International Atomic Energy Agency

T2 - 1995 - IAEA Specialists Meeting on Irradiation Embrittlement and Mitigation

Y2 - 23 October 1995 through 26 October 1995

ER -

Fabry A, Bodart S, de Bakker P, Chaouadi R , Puzzolante L , van Walle E et al. BR2/CHIVAS Irradation in support of enhanced surveillance of nuclear reactor pressure vessels. In IAEA Specialists' Meeting on Irradiation Embrittlement and Mitigation, 23 - 26 October. 1995, Espoo, Finland. Vol. 1. IAEA - International Atomic Energy Agency. 1995. p. 245-266. IWG-LMNPP-95/5