Microstructural Changes Related to Through-Wall Attenuation of Neutron Irradiation Embrittlement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F10%3A%230000741" target="_blank" >RIV/26722445:_____/10:#0000741 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46356088:_____/10:#0001683

Výsledek na webu

<a href="http://dx.doi.org/10.1115/PVP2010-25636" target="_blank" >http://dx.doi.org/10.1115/PVP2010-25636</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/PVP2010-25636" target="_blank" >10.1115/PVP2010-25636</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructural Changes Related to Through-Wall Attenuation of Neutron Irradiation Embrittlement

Popis výsledku v původním jazyce

The through-wall attenuation of neutron fluence of reactor pressure vessel (RPV) steels is often expressed using an exponential decay function based on some estimate of displacements per atom (dpa). In order to verify this function, an irradiation project was performed in which 18 layers of Charpy specimens and one central temperatue control layer were stacked in a block to simulate a 190 mm thick RPV wall. Three western-type RPV steels (medium and low copper plates and a high copper Linde 80 flux weld)were irradiated in this project. Mechanical property tests of these materials have been performed under a consortium of EPRI, CRIEPI, NRI-Rez and ATI Consulting to fully characterize the mechanical properties in terms of Charpy transition temperature and upper-shelf energy, as well as reference fracture toughness using the Master Curve. Some results have been reported at previous PVP conferences. In this paper, we report the results of microstructural characterization using three-dimens

Název v anglickém jazyce

Microstructural Changes Related to Through-Wall Attenuation of Neutron Irradiation Embrittlement

Popis výsledku anglicky

The through-wall attenuation of neutron fluence of reactor pressure vessel (RPV) steels is often expressed using an exponential decay function based on some estimate of displacements per atom (dpa). In order to verify this function, an irradiation project was performed in which 18 layers of Charpy specimens and one central temperatue control layer were stacked in a block to simulate a 190 mm thick RPV wall. Three western-type RPV steels (medium and low copper plates and a high copper Linde 80 flux weld)were irradiated in this project. Mechanical property tests of these materials have been performed under a consortium of EPRI, CRIEPI, NRI-Rez and ATI Consulting to fully characterize the mechanical properties in terms of Charpy transition temperature and upper-shelf energy, as well as reference fracture toughness using the Master Curve. Some results have been reported at previous PVP conferences. In this paper, we report the results of microstructural characterization using three-dimens

Druh

D - Stať ve sborníku

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ASME 2010 Pressure Vessels and Piping Conference: Volume 9

ISBN

978-0-7918-3878-5

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

119-124

Název nakladatele

ASME

Místo vydání

New York, USA

Místo konání akce

Bellevue, Washington, USA

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000291567000020