Comparison of Results of Accelerated and Conventional Creep Tests of Dissimilar Weld Joint of Steels FB2 and F

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F16%3AN0000028" target="_blank" >RIV/47718684:_____/16:N0000028 - isvavai.cz</a>
Result on the web
<a href="http://www.scientific.net/msf.891.322" target="_blank" >http://www.scientific.net/msf.891.322</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/msf.891.322" target="_blank" >10.4028/www.scientific.net/msf.891.322</a>

Result language
angličtina
Original language name
Comparison of Results of Accelerated and Conventional Creep Tests of Dissimilar Weld Joint of Steels FB2 and F
Original language description
The recently developed simulative accelerated creep testing (ACT) on a Gleeble thermal-mechanical simulator allows the microstructural transformation of creep-resisting materials in a relatively short time to a state resembling that of multiyear application under creep conditions. This contribution deals with the comparison of long-term conventional creep testing (CCT) with ACT on a dissimilar weld joint prepared from steels COST FB2 and COST F. Creep tests to rupture were carried out at temperatures from 550 °C to 650 °C in a stress range from 70 MPa to 220 MPa. Evolution of the microstructure was correlated with the strength. The fine grained part of the heat affected zone of steel COST F was found to be a critical zone of creep damage. ACT of samples machined from various positions in the weldment was performed. The results of both creep testing methods are compared from a point of view of the potential for utilization of ACT in industry. It seems that microstructural processes taking place during creep exposures are accelerated by ACT, however, further experiments have to be performed to improve the accuracy of fracture prediction and verification if long-term CCT is to be replaced by ACT.
Czech name
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Czech description
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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
C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

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