Crack Initiation in Heavy Liquid Metals, the Kamile Experience

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F18%3AN0000081" target="_blank" >RIV/26722445:_____/18:N0000081 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Crack Initiation in Heavy Liquid Metals, the Kamile Experience

Popis výsledku v původním jazyce

In order to provide an insight into the conditions for cracking of steels T91 and 15-15Ti in Heavy Liquid Metals (HLM), mechanical testing of various specimens in contact with lead-bismuth eutectic (LBE) was carried out. Constant Extension Rate Tensile (CERT) tests were performed with flat tapered specimens in LBE at 300°C. When steels are in contact with HLM, the Liquid Metal Embrittlement (LME) occurs. The tapered specimens were used in order to evaluate the threshold stress of the crack initiation in LBE. Under these experimental conditions T91 steel showed a tendency to crack initiation. On the other hand, the austenitic 15-15Ti steel was not affected by the environment. However, even in the case of the steel T91, experiments showed that the crack initiation is not leading to a brittle failure and that LME crack do not occur before the maximum load point (UTS), which confirms that LME develops well beyond design loading conditions (require plastic deformation).

Název v anglickém jazyce

Crack Initiation in Heavy Liquid Metals, the Kamile Experience

Popis výsledku anglicky

In order to provide an insight into the conditions for cracking of steels T91 and 15-15Ti in Heavy Liquid Metals (HLM), mechanical testing of various specimens in contact with lead-bismuth eutectic (LBE) was carried out. Constant Extension Rate Tensile (CERT) tests were performed with flat tapered specimens in LBE at 300°C. When steels are in contact with HLM, the Liquid Metal Embrittlement (LME) occurs. The tapered specimens were used in order to evaluate the threshold stress of the crack initiation in LBE. Under these experimental conditions T91 steel showed a tendency to crack initiation. On the other hand, the austenitic 15-15Ti steel was not affected by the environment. However, even in the case of the steel T91, experiments showed that the crack initiation is not leading to a brittle failure and that LME crack do not occur before the maximum load point (UTS), which confirms that LME develops well beyond design loading conditions (require plastic deformation).

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

—

OECD FORD obor

20501 - Materials engineering

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)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Nuclear Research and Development

ISSN

2247-191X

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

RO - Rumunsko

Počet stran výsledku

6

Strana od-do

3-8

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—