Comparison of Results of Long-time Creep Test and ACT of Dissimilar Weld Joint of Steel P22 and P91

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F11%3A%230000449" target="_blank" >RIV/47718684:_____/11:#0000449 - isvavai.cz</a>

Výsledek na webu

<a href="http://vzuplzen.cz" target="_blank" >http://vzuplzen.cz</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of Results of Long-time Creep Test and ACT of Dissimilar Weld Joint of Steel P22 and P91

Popis výsledku v původním jazyce

Recently developed simulative accelerated creep test (ACT) on Gleeble thermal-mechanical simulator allows in a relatively short time (less than 100 hours) microstructural transformation of creep-resisting materials to the state, resembling that of multiyear application at creep conditions. This contribution deals with comparison of the conventional creep test (CCT) with the ACTof dissimilar weld joint. Creep tests to the rupture of the weld joint made of 9Cr-1Mo and 2.25Cr-1Mo ferrite base metals, 2.25Cr-1Mo steel weld metal were carried out at temperatures ranging from 525°C to 625°C in the stress range from 40 to 220 MPa. Creep rupture strength was evaluated using Larson-Miller parameter. Evolution of microstructure, changes of precipitates and dislocation substructure were correlated with the creep strength. Critical zones of creep damage were determined. At lower temperatures and higher stresses the weld joint ruptured in the base material of P22 steel unaffected by welding, while

Název v anglickém jazyce

Comparison of Results of Long-time Creep Test and ACT of Dissimilar Weld Joint of Steel P22 and P91

Popis výsledku anglicky

Recently developed simulative accelerated creep test (ACT) on Gleeble thermal-mechanical simulator allows in a relatively short time (less than 100 hours) microstructural transformation of creep-resisting materials to the state, resembling that of multiyear application at creep conditions. This contribution deals with comparison of the conventional creep test (CCT) with the ACTof dissimilar weld joint. Creep tests to the rupture of the weld joint made of 9Cr-1Mo and 2.25Cr-1Mo ferrite base metals, 2.25Cr-1Mo steel weld metal were carried out at temperatures ranging from 525°C to 625°C in the stress range from 40 to 220 MPa. Creep rupture strength was evaluated using Larson-Miller parameter. Evolution of microstructure, changes of precipitates and dislocation substructure were correlated with the creep strength. Critical zones of creep damage were determined. At lower temperatures and higher stresses the weld joint ruptured in the base material of P22 steel unaffected by welding, while

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI2%2F080" target="_blank" >FR-TI2/080: Nové technologie spojování komponent průtočné části turbín pro ultra super kritické parametry páry</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

IIW International Conference on Global Trends in Joining, Cutting and Surfacing Technology

ISBN

978-81-8487-152-4

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

910-916

Název nakladatele

Narosa Publishing house PVT. Ltd.

Místo vydání

New Delhi

Místo konání akce

Chenai Trade Centre, Chennai, India

Datum konání akce

1. 1. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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