Study of High Temperature Properties and Microstructure of Heterogeneous P23/P91 Welds during the Creep Exposure at 500, 550 and 600°C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F13%3A86089230" target="_blank" >RIV/61989100:27360/13:86089230 - 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

Study of High Temperature Properties and Microstructure of Heterogeneous P23/P91 Welds during the Creep Exposure at 500, 550 and 600°C

Popis výsledku v původním jazyce

Dissimilar welds are used extensively in the power generation industry in boiler tubing to accommodate changes in temperature, pressure and corrosion conditions between different locations. These joints are generally prone to failure in the HAZ on the side of a low alloy material. An important factor having a strong influence on the microstructural stability of heterogeneous welded joints is ?up?hill? diffusion of interstitial elements driven by the activity gradients of these elements in welded materials. This phenomenon significantly affects development of microstructure and creep damage close to the fusion line between low alloy and high alloy steels. This paper is focused on microstructural evolution in two designs of heterogeneous P23/P91 welds during long-term creep exposure in the temperature range from 500 to 600°C. Welds A and B were manufactured using E-CrMo91B and Thyssen Cr2WV filler materials, respectively. Microstructural investigations were compared with the results of t

Název v anglickém jazyce

Study of High Temperature Properties and Microstructure of Heterogeneous P23/P91 Welds during the Creep Exposure at 500, 550 and 600°C

Popis výsledku anglicky

Dissimilar welds are used extensively in the power generation industry in boiler tubing to accommodate changes in temperature, pressure and corrosion conditions between different locations. These joints are generally prone to failure in the HAZ on the side of a low alloy material. An important factor having a strong influence on the microstructural stability of heterogeneous welded joints is ?up?hill? diffusion of interstitial elements driven by the activity gradients of these elements in welded materials. This phenomenon significantly affects development of microstructure and creep damage close to the fusion line between low alloy and high alloy steels. This paper is focused on microstructural evolution in two designs of heterogeneous P23/P91 welds during long-term creep exposure in the temperature range from 500 to 600°C. Welds A and B were manufactured using E-CrMo91B and Thyssen Cr2WV filler materials, respectively. Microstructural investigations were compared with the results of t

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regionální materiálově technologické výzkumné centrum</a><br>

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2013 : 22nd International Conference on Metallurgy and Materials : conference proceedings : May 15th - 17th 2013, Hotel Voronez I, Brno Czech Republic, EU [CD-ROM]

ISBN

978-80-87294-41-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

514-519

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

15. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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