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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020068" target="_blank" >TE01020068: Centrum výzkumu a experimentálního vývoje spolehlivé energetiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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.

Název statě ve sborníku

Materials sfcience forum, Metallography XVI

ISBN

978-3-0357-1018-2

ISSN

0255-5476

e-ISSN

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Počet stran výsledku

8

Strana od-do

322-329

Název nakladatele

Trans Tech Publications Ltd

Místo vydání

Zurich, Switzerland

Místo konání akce

Stará Lesná, Slovenská republika

Datum konání akce

20. 4. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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