Creep Behaviour and Microstructure of a Heterogeneous P23/P91 Weld

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F09%3A%230000138" target="_blank" >RIV/25870807:_____/09:#0000138 - 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 Behaviour and Microstructure of a Heterogeneous P23/P91 Weld
Original language description
The structural integrity of welded components operated at elevated temperatures is of key importance in power plant applications. Long-term creep exposure of heterogeneous welds is accompanied by redistribution of interstitial elements which strongly affects microstructural evolution in the vicinity of the fusion zone between the low and high alloy materials. The paper summarises results of investigations on creep rupture properties and minor phase evolution in the P23/P91 heterogeneous weld during creep exposure at 500, 550 and 600C. Results of creep rupture tests on the P23/P91 heterogeneous weld were close or slightly below the lower limit of the 20% scatter band around the standardized curve for creep strength of the P23 steel. In the course of creep exposure the development of creep damage could simultaneously take place in several critical areas of the weldment but the location of the final failure was determined by the ?weakest area? for given testing parameters.
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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