Creep Behaviour and Microstructure Evolution in Super 304H-P92 Heterogeneous Welds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F23%3A10253556" target="_blank" >RIV/61989100:27360/23:10253556 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/25870807:_____/23:N0000038

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/09603409.2023.2283269" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/09603409.2023.2283269</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/09603409.2023.2283269" target="_blank" >10.1080/09603409.2023.2283269</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Creep Behaviour and Microstructure Evolution in Super 304H-P92 Heterogeneous Welds

Popis výsledku v původním jazyce

The paper deals with results of long-term stress rupture tests on &quot;cross-weld&quot; specimens made of Super 304H-P92 heterogeneous welds. Stress rupture tests were carried out at temperatures of 625 and 650 oC up to 20,000 hours to rupture. Creep rupture strength and WSF values of Super 304H-P92 welds for 10,000 hours at both 625 and 650 oC were calculated. The preferential location of failure was the intercritical part of the heat affected zone in P92 steel. Hardness of both base materials did not show significant changes during creep exposure at both 625 and 650 oC. However, gradual hardening of the weld metal occurred. Metallographic studies were performed in individual parts of heterogeneous welds. A special attention was paid to precipitation reactions in both base materials and heat affected zones. A residual content of vanadium in Super 304H steel affected precipitation processes. Vanadium partly substituted niobium in the modified Z-phase ((V,Nb)CrN).

Název v anglickém jazyce

Creep Behaviour and Microstructure Evolution in Super 304H-P92 Heterogeneous Welds

Popis výsledku anglicky

The paper deals with results of long-term stress rupture tests on &quot;cross-weld&quot; specimens made of Super 304H-P92 heterogeneous welds. Stress rupture tests were carried out at temperatures of 625 and 650 oC up to 20,000 hours to rupture. Creep rupture strength and WSF values of Super 304H-P92 welds for 10,000 hours at both 625 and 650 oC were calculated. The preferential location of failure was the intercritical part of the heat affected zone in P92 steel. Hardness of both base materials did not show significant changes during creep exposure at both 625 and 650 oC. However, gradual hardening of the weld metal occurred. Metallographic studies were performed in individual parts of heterogeneous welds. A special attention was paid to precipitation reactions in both base materials and heat affected zones. A residual content of vanadium in Super 304H steel affected precipitation processes. Vanadium partly substituted niobium in the modified Z-phase ((V,Nb)CrN).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/TK03020055" target="_blank" >TK03020055: Výzkum creepového chování a ověřování křehko-lomových vlastností austenitických ocelí pro bloky tepelných elektráren s USC parametry páry.</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

MATERIALS AT HIGH TEMPERATURES

ISSN

0960-3409

e-ISSN

—

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

2023

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

"Neuveden"

Kód UT WoS článku

001108086600001

EID výsledku v databázi Scopus

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