CREEP PROPERTIES OF DISSIMILAR WELD JOINT OF STEELS COST FB2 AND COST F

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F16%3A%230000612" target="_blank" >RIV/47718684:_____/16:#0000612 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

CREEP PROPERTIES OF DISSIMILAR WELD JOINT OF STEELS COST FB2 AND COST F

Popis výsledku v původním jazyce

Creep test to the rupture of the dissimilar weld joint made of COST FB2 and COST F martensitic steels was carried out at temperatures ranging from 550°C to 650°C in the stress range from 70 to 220 MPa. Creep rupture strength was evaluated using Larson-Miller parameter. Assessment 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 COST F steel unaffected by welding, while at higher temperatures and lower stresses rupture occurred in the intercritical heated and fine-grained parts of heat affected zone (HAZ) of steel COST F. The processes of recovery in connection with precipitation of new particles of Laves phase and their coarsening is the main causes of decrease in creep rupture strength in the HAZ of steel COST F.

Název v anglickém jazyce

CREEP PROPERTIES OF DISSIMILAR WELD JOINT OF STEELS COST FB2 AND COST F

Popis výsledku anglicky

Creep test to the rupture of the dissimilar weld joint made of COST FB2 and COST F martensitic steels was carried out at temperatures ranging from 550°C to 650°C in the stress range from 70 to 220 MPa. Creep rupture strength was evaluated using Larson-Miller parameter. Assessment 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 COST F steel unaffected by welding, while at higher temperatures and lower stresses rupture occurred in the intercritical heated and fine-grained parts of heat affected zone (HAZ) of steel COST F. The processes of recovery in connection with precipitation of new particles of Laves phase and their coarsening is the main causes of decrease in creep rupture strength in the HAZ of steel COST F.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

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

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

Název statě ve sborníku

METAL 2015

ISBN

978-80-87294-62-8

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

553-559

Název nakladatele

TANGER Ltd

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

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Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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