Crack Initiation in Heavy Liquid Metals, the Kamile Experience

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Crack Initiation in Heavy Liquid Metals, the Kamile Experience
Original language description
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).
Czech name
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Czech description
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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)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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