Influence of Irradiation on the Ductile Fracture of a Reactor Pressure Vessel Steel
Result description
The mechanical properties of 15Ch2MFA steel were characterised by tensile and instrumented Charpy tests. The fracture surfaces of Charpy specimens broken in the ductile-to-brittle transition temperature range contain a certain proportion of ductile fracture correlated to fracture energy. Measured ductile crack lengths show the same dependence on fracture deflection and/or fracture energy for irradiated and non-irradiated specimens. The decrease of upper shelf energy with increasing neutron fluence couldbe explained by an increasing amount of shear fracture.
Keywords
Charpy testfractographyneutron embrittlementpressure vessel steel
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Influence of Irradiation on the Ductile Fracture of a Reactor Pressure Vessel Steel
Original language description
The mechanical properties of 15Ch2MFA steel were characterised by tensile and instrumented Charpy tests. The fracture surfaces of Charpy specimens broken in the ductile-to-brittle transition temperature range contain a certain proportion of ductile fracture correlated to fracture energy. Measured ductile crack lengths show the same dependence on fracture deflection and/or fracture energy for irradiated and non-irradiated specimens. The decrease of upper shelf energy with increasing neutron fluence couldbe explained by an increasing amount of shear fracture.
Czech name
Vliv ozáření na tvárný lom reaktorové oceli
Czech description
Mechanické vlastnosti reaktorové oceli 15Ch2MFA byly charakterizovány pomocí tahových a Charpyho zkoušek rázem v ohybu. Lomové plochy Charpyho těles porušených v přechodové oblasti obsahují určitý podíl tvárného lomu korelovaného s energií absorbovanou do lomu. Měřené délky tvárných trhlin ukazují stejnou závislost pro ozářená i neozářená tělesa. Pokles horního plata energie s rostoucí dávkou ozáření je způsoben pravděpodobně nárůstem podílu smykového lomu.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
GA106/04/0066: Physical aspects of the transition behaviour of ferritic steels
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Nuclear Materials
ISSN
0022-3115
e-ISSN
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Volume of the periodical
341
Issue of the periodical within the volume
2-3
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
5
Pages from-to
184-188
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JL - Fatigue and fracture mechanics
Year of implementation
2005