Effect of strain rate and high temperature water on deformation structure of vver neutron irradiated core internals steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F18%3AN0000080" target="_blank" >RIV/26722445:_____/18:N0000080 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/978-3-319-67244-1_35" target="_blank" >http://dx.doi.org/10.1007/978-3-319-67244-1_35</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-67244-1_35" target="_blank" >10.1007/978-3-319-67244-1_35</a>
Alternative languages
Result language
angličtina
Original language name
Effect of strain rate and high temperature water on deformation structure of vver neutron irradiated core internals steel
Original language description
Components of reactor core internals suffer from Irradiation Assisted Stress Corrosion Cracking. Here is studied 08Ch18N10T austenitic stainless steel acquired from decommissioned NPP Nord Unit 1, VVER 440-230 type in Greifswald, where had been irradiated to 5.2, dpa. The material was tensile tested at 20, °C in air and slow strain rate tested at 320, °C in air and in water. SEM observations of the fracture surface found ductile fracture for the air tests, but areas of intergranular fracture typical of IASCC in the water. This paper emphasizes the microscopic examination from three samples to determine the underlying physical damage processes. TEM observations close to the fractured surface focused to the interaction of dislocations with local radiation damage defects and grain boundaries owing to different test conditions. Determination of local chemical composition around the grain boundaries indicated radiation induced segregation; as well presence of helium gas in voids. The observation of tensile tests found the presence of twinning and regions of strained martensite transformation. The nano features of tests at elevated temperature were tangled dislocations, similar in air and water. No effect of the water environment on the deformation structures was observed. © The Minerals, Metals & Materials Society 2018.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Minerals, Metals and Materials Series Volume Part F9, 2018
ISBN
978-331967243-4
ISSN
2367-1181
e-ISSN
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Number of pages
15
Pages from-to
549-563
Publisher name
Springer International Publishing
Place of publication
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Event location
Portland, USA
Event date
Aug 13, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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