Experimental and Theoretical Study of Redistribution of Alloying Elements in Ni-based Weld Joints at High Temperatures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00012491" target="_blank" >RIV/00216224:14310/05:00012491 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/05:00023913
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Experimental and Theoretical Study of Redistribution of Alloying Elements in Ni-based Weld Joints at High Temperatures
Original language description
Ni-based diffusion couples were investigated experimentally at 1000 and 1200 8C. The experimental results were compared with theoretical calculations. Equilibrium calculations needed were obtained using CALPHAD approach. The diffusion processes were simulated by means of DICTRA program. The thermodynamic database TCNI was used for equilibrium calculations. User kinetic database was taken for evaluation of diffusion fluxes. The experimental techniques of light microscopy and analytical electron microscopy (TEM, SEM, EDAX) were used. An additional microhardness measurement was also performed. Some particular aspects of the joining of the Ni-based superalloys are discussed. An experimental evidence of validity of local phase equilibrium assumption is given.
Czech name
Experimentální a teoretické studium přerozdělení legujících prvků ve svarových spojích na bázi Ni za vysokých teplot
Czech description
Byly sledovány difúzní páry niklových superslitin při teplotách 1000 a 1200ºC. Výsledky simulací jsou srovnány experimentem. Rovnovážné výpočty jsou provedeny metodou CALPHAD.Je použita experimentalní analytická technika světelné a elektrovové mikroskopie TEM, SEM, EDAX).

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GA106%2F02%2F0876" target="_blank" >GA106/02/0876: Theoretical and experimental study of Ni-based model systems and thermodynamic description of phase equilibria</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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