Theoretical and experimental study of the gamma and gamma prime equilibrium in Ni-based superalloys.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F02%3A07023068" target="_blank" >RIV/68081723:_____/02:07023068 - 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

Theoretical and experimental study of the gamma and gamma prime equilibrium in Ni-based superalloys.

Popis výsledku v původním jazyce

Ni-based superalloys with aluminium belong to systems with order-disorder transition. Because of the complexity of these alloys, quaternary systems can be taken as suitable and sufficiently representative model systems for a theoretical study of their phase equilibria. In recent years several assessments including various model descriptions of ordered phases and ordering based on the CALPHAD formalism have been made with the aim to describe phase diagrams of relevant binary, ternary and some quaternarysystems. For our study, the Ni-Al-Cr-Co system was chosen and phase boundaries were calculated based on the data for lower-order systems. The calculations were performed by means of the software 'Thermo-Calc'. Values obtained were compared with experimentally determined phase information. For better agreement of theory with experiment, an thermodynamic optimization was performed.

Název v anglickém jazyce

Theoretical and experimental study of the gamma and gamma prime equilibrium in Ni-based superalloys.

Popis výsledku anglicky

Ni-based superalloys with aluminium belong to systems with order-disorder transition. Because of the complexity of these alloys, quaternary systems can be taken as suitable and sufficiently representative model systems for a theoretical study of their phase equilibria. In recent years several assessments including various model descriptions of ordered phases and ordering based on the CALPHAD formalism have been made with the aim to describe phase diagrams of relevant binary, ternary and some quaternarysystems. For our study, the Ni-Al-Cr-Co system was chosen and phase boundaries were calculated based on the data for lower-order systems. The calculations were performed by means of the software 'Thermo-Calc'. Values obtained were compared with experimentally determined phase information. For better agreement of theory with experiment, an thermodynamic optimization was performed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F99%2F1176" target="_blank" >GA106/99/1176: Niklové slitiny s ochrannými povlaky: mikrostruktura a termodynamické modelování</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název periodika

Materials Science and Engineering. A

ISSN

0921-5093

e-ISSN

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Svazek periodika

324

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

28-33

Kód UT WoS článku

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EID výsledku v databázi Scopus

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