Microstructural Stability of P23/P91 Dissimilar Welds during Creep at 500°C

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F14%3A%230000381" target="_blank" >RIV/25870807:_____/14:#0000381 - isvavai.cz</a>

Result on the web

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

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.782.319" target="_blank" >10.4028/www.scientific.net/MSF.782.319</a>

Result language

angličtina

Original language name

Microstructural Stability of P23/P91 Dissimilar Welds during Creep at 500°C

Original language description

This paper deals with microstructural stability of P23/P91 dissimilar welds during longterm creep exposure at 500°C. Detailed TEM investigations on minor phase evolution were performed on specimens after long-term creep exposure. Microstructural changesin the decarburized layer of the P23 steel were studied using EBSD and TEM. Experimental data on minor phase evolution were compared to the results of thermodynamic (Thermocalc) and kinetic (Dictra) simulations. Evolution of minor phases in the P23/P91 welds during creep at 500°C was in a good agreement with results of microstructural modelling. Partial decarburization of the P23 occurred at the expense of dissolving M7C3 phase. Microstructure of the partly decarburized zone in the P23 steel remained bainitic in all specimens investigated. In spite of the partial decarburization in the P23 steel during long?term creep exposure at 500°C, creep failures occurred in the ICHAZ of the P23 steel.

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/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regional materials science and technology centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Materials Science Forum

ISSN

1662-9752

e-ISSN

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Volume of the periodical

782

Issue of the periodical within the volume

15

Country of publishing house

CH - SWITZERLAND

Number of pages

5

Pages from-to

319-324

UT code for WoS article

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EID of the result in the Scopus database

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