Quantitative evaluation of secondary phases in a weld joint made of COST F and FB2 creep resistant steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F17%3AN0000031" target="_blank" >RIV/47718684:_____/17:N0000031 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scientific.net/SSP.270.174" target="_blank" >http://www.scientific.net/SSP.270.174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.270.174" target="_blank" >10.4028/www.scientific.net/SSP.270.174</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Quantitative evaluation of secondary phases in a weld joint made of COST F and FB2 creep resistant steels

Popis výsledku v původním jazyce

Conventional (CCT) and accelerated (ACT) creep tests of a weld joint made of COST F and FB2 steels were carried out over a temperature range from 550 °C to 650 °C. Fracturing of the crept specimens was located in the heat affected zone (HAZ) of the F steel. Two specimens were selected after CCT and ACT for quantitative evaluation of the precipitates and compared to the weld joint in as-received conditions. Scanning and transmission electron micrographs were used to measure the precipitate size. Both methods were compared and the accuracy of the results was discussed. It was concluded that ACT can simulate the precipitation of chromium carbides and structure recovery during long term creep exposures. However, precipitation of Laves phase during CCT was not recorded after ACT. Therefore, it is difficult to use ACT in this experiment for estimating the long term creep strength.

Název v anglickém jazyce

Quantitative evaluation of secondary phases in a weld joint made of COST F and FB2 creep resistant steels

Popis výsledku anglicky

Conventional (CCT) and accelerated (ACT) creep tests of a weld joint made of COST F and FB2 steels were carried out over a temperature range from 550 °C to 650 °C. Fracturing of the crept specimens was located in the heat affected zone (HAZ) of the F steel. Two specimens were selected after CCT and ACT for quantitative evaluation of the precipitates and compared to the weld joint in as-received conditions. Scanning and transmission electron micrographs were used to measure the precipitate size. Both methods were compared and the accuracy of the results was discussed. It was concluded that ACT can simulate the precipitation of chromium carbides and structure recovery during long term creep exposures. However, precipitation of Laves phase during CCT was not recorded after ACT. Therefore, it is difficult to use ACT in this experiment for estimating the long term creep strength.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/TE01020118" target="_blank" >TE01020118: Elektronová mikroskopie</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Solid State Phenomena

ISSN

1012-0394

e-ISSN

1662-9779

Svazek periodika

270

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

183-188

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85038207400