Environmentally assisted cracking of T91 ferritic-martensitic steel in heavy liquid metals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000031" target="_blank" >RIV/26722445:_____/20:N0000031 - isvavai.cz</a>
Result on the web
<a href="https://www.degruyter.com/view/journals/corrrev/38/2/article-p183.xml?tab_body=pdf-69320" target="_blank" >https://www.degruyter.com/view/journals/corrrev/38/2/article-p183.xml?tab_body=pdf-69320</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/corrrev-2019-0035" target="_blank" >10.1515/corrrev-2019-0035</a>
Alternative languages
Result language
angličtina
Original language name
Environmentally assisted cracking of T91 ferritic-martensitic steel in heavy liquid metals
Original language description
In order to advance material development for future nuclear systems, an insight into the cracking conditions of T91 ferritic-martensitic steel in heavy liquid metals (IILM) is provided. The paper critically reviews previous experimental data and summarizes them with new results. The new testing of T91 steel was performed in contact with slow flow and static HLM to study crack initiation, especially in liquid PbBi eutectic at 300 degrees-350 degrees C and Pb at 400 degrees C with about 1 x 10(-6) wt.% of oxygen. Pre-stressed coupons were exposed to the liquid metals for up to 2000 h. Constant extension rate tests (CERTs) were performed in the liquid metals to accelerate cracking development. Under static conditions, the testing resulted in oxidation without any crack observation. Under the CERT ones, the T91 steel showed a tendency to crack initiation in PbBi, while in Pb, cracks were not initiated even when the oxide layer was broken. Moreover, the environmentally assisted crack initiated at the maximum load and continued to grow under further loading without unstable failure. Both previous and new data have confirmed that high stress and plastic strain are pre-conditions for the environmentally assisted cracking of 191 in static HLM. It indicates that in the systems utilizing continuous oxygen control of HLM, the LME/EAC of the T91 could develop only in the beyond design load conditions. Further testing is necessary to address the HLM flow speed effect.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA16-15008S" target="_blank" >GA16-15008S: Kinetics and mechanism of crack initiation of Liquid Metal Embrittlement</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Corrosion Reviews
ISSN
0334-6005
e-ISSN
2191-0316
Volume of the periodical
38
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
183-194
UT code for WoS article
000521509400007
EID of the result in the Scopus database
2-s2.0-85079065098