Creep failure characteristics in P23/P91 dissimilar welds

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Creep failure characteristics in P23/P91 dissimilar welds

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Creep failure characteristics in P23/P91 dissimilar welds

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proc. of 19th International Conference on Metallurgy and Materials, Metal 2010

ISBN

978-80-87294-17-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

TANGER s.r.o.

Místo vydání

Ostrava

Místo konání akce

Rožnov pod Radhoštěm

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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