Creep Behaviour and Microstructural Changes of Advanced Creep Resistant Steels after Long-term Isothermal Ageing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F10%3A00354915" target="_blank" >RIV/68081723:_____/10:00354915 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Creep Behaviour and Microstructural Changes of Advanced Creep Resistant Steels after Long-term Isothermal Ageing

Original language description

In this paper we will try to further clarify the creep-strength degradation of selected advanced creep resistant steels. In order to accelerate some microstructural changes and thus to simulate degradation processes in long-term service, isothermal ageing at 650°C for 10 000 h was applied to P91, P92 and P23 steels in their as-received states. The accelerated tensile creep tests were performed at temperature 600°C in argon atmosphere on all steels in the as-received state and after long-term isothermalageing, in an effort to obtain a more complete description of the role of microstructural stability in high temperature creep of these steels. Creep tests were followed by microstructural investigations by means of both transmission and scanning electronmicroscopy and by the thermodynamic calculations. It is suggested that microstructural instability is the main detrimental process in the long-term degradation of the creep rupture strength of these steels.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/2A-1TP1%2F057" target="_blank" >2A-1TP1/057: The resolution of material and technological innovations for power and chemical facilities of new generation working under high temperatures</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Materials Science Forum

ISSN

0255-5476

e-ISSN

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Volume of the periodical

654-656

Issue of the periodical within the volume

-

Country of publishing house

CH - SWITZERLAND

Number of pages

4

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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