Characteristics and Liquid Metal Embrittlement of the steel T91 in contact with Lead-Bismuth Eutectic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F16%3AN0000025" target="_blank" >RIV/26722445:_____/16:N0000025 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnucmat.2015.08.048" target="_blank" >http://dx.doi.org/10.1016/j.jnucmat.2015.08.048</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnucmat.2015.08.048" target="_blank" >10.1016/j.jnucmat.2015.08.048</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Characteristics and Liquid Metal Embrittlement of the steel T91 in contact with Lead-Bismuth Eutectic

Popis výsledku v původním jazyce

This paper summarizes results of the work carried out on the evaluation of the susceptibility to LME (Liquid Metal Embrittlement) of the ferritic/martensitic steel T91 in contact with LBE (Lead-Bismuth Eutectic). The influence of LBE on the fracture toughness of the steel was studied using 0.5T CT specimen at 355 degrees C, pre-cracked by cyclic loading in the liquid metal. Tests were carried out in well-defined conditions and according to ASTM standard. It was observed that the LBE decreased the apparent fracture toughness, J(IC), by more than 30%, compared to the value in air. The results are discussed based on examinations of the fracture surface evidencing LME occurrence. The stretch zone accompanying the pre-crack tip blunting was not observed in the specimens exhibiting LME. Therefore, a new fracture toughness, J(map), determined as J integral at the maximum applied load, is proposed to be the appropriate value for fracture resistance evaluation in LBE. The Jmap can be applied for the assessment of a preexisting LME crack stability.

Název v anglickém jazyce

Characteristics and Liquid Metal Embrittlement of the steel T91 in contact with Lead-Bismuth Eutectic

Popis výsledku anglicky

This paper summarizes results of the work carried out on the evaluation of the susceptibility to LME (Liquid Metal Embrittlement) of the ferritic/martensitic steel T91 in contact with LBE (Lead-Bismuth Eutectic). The influence of LBE on the fracture toughness of the steel was studied using 0.5T CT specimen at 355 degrees C, pre-cracked by cyclic loading in the liquid metal. Tests were carried out in well-defined conditions and according to ASTM standard. It was observed that the LBE decreased the apparent fracture toughness, J(IC), by more than 30%, compared to the value in air. The results are discussed based on examinations of the fracture surface evidencing LME occurrence. The stretch zone accompanying the pre-crack tip blunting was not observed in the specimens exhibiting LME. Therefore, a new fracture toughness, J(map), determined as J integral at the maximum applied load, is proposed to be the appropriate value for fracture resistance evaluation in LBE. The Jmap can be applied for the assessment of a preexisting LME crack stability.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JF - Jaderná energetika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Nuclear Materials

ISSN

0022-3115

e-ISSN

—

Svazek periodika

472

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

163-170

Kód UT WoS článku

000373489700021

EID výsledku v databázi Scopus

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