CREEP PROPERTIES OF DISSIMILAR WELD JOINT OF STEELS COST FB2 AND COST F

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F16%3A%230000612" target="_blank" >RIV/47718684:_____/16:#0000612 - 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
CREEP PROPERTIES OF DISSIMILAR WELD JOINT OF STEELS COST FB2 AND COST F
Original language description
Creep test to the rupture of the dissimilar weld joint made of COST FB2 and COST F martensitic steels was carried out at temperatures ranging from 550°C to 650°C in the stress range from 70 to 220 MPa. Creep rupture strength was evaluated using Larson-Miller parameter. Assessment of microstructure, changes of precipitates and dislocation substructure were correlated with the creep strength. Critical zones of creep damage were determined. At lower temperatures and higher stresses the weld joint ruptured in the base material of COST F steel unaffected by welding, while at higher temperatures and lower stresses rupture occurred in the intercritical heated and fine-grained parts of heat affected zone (HAZ) of steel COST F. The processes of recovery in connection with precipitation of new particles of Laves phase and their coarsening is the main causes of decrease in creep rupture strength in the HAZ of steel COST F.
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Project
<a href="/en/project/TE01020068" target="_blank" >TE01020068: Centre of research and experimental development of reliable energy production</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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