CREEP RUPTURE BEHAVIOUR OF P23/P91 HETEROGENEOUS WELDS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F10%3A%230000197" target="_blank" >RIV/25870807:_____/10:#0000197 - 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 RUPTURE BEHAVIOUR OF P23/P91 HETEROGENEOUS WELDS
Original language description
Two variants of P23/P91 heterogeneous welds were studied. The composition of filler material in Weld A corresponded to that of P91 steel, whilst for Weld B the low alloy filler material of P23 type composition was used. Results of creep rupture tests onthe cross weld specimens are close to, or slightly below, the lower limit of the 20% scatter band around the standardized curve for creep strength of the P23 steel. Creep rupture tests were performed at temperatures of 500, 550 and 600°C with time to rupture up to 60 000hours. Optical microscopy investigations and hardness measurements were carried out on longitudinal sections through ruptured cross weld specimens in order to reveal the effect of testing parameters (temperature, stress) on the preferredlocation of creep failure. It has been found that in both weld variants creep damage can develop simultaneously in several parts of the cross-weld specimens.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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