Concentration dependence of ternary interdiffusion coefficients in Ni3Al/Ni3Al-X couples with X = Cr, Fe, Nb and Ti.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F03%3A07033034" target="_blank" >RIV/68081723:_____/03:07033034 - 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

Concentration dependence of ternary interdiffusion coefficients in Ni3Al/Ni3Al-X couples with X = Cr, Fe, Nb and Ti.

Original language description

The gamma' single phase interdiffusion in Ni3Al-X (X = Cr, Fe, Nb and Ti) was studied in temperature interval 1173-1533 K. Elements of diffusion matrix, (D) over tilde ((Ni))(ij), were estimated by a modification of Dayananda's method which enables evaluation of their concentration dependence using one couple only. It was found that activation enthalpy, Q(XX)((Ni)), and frequency factor, D-o(XX)(Ni), decrease with increasing concentration of element X. In the limit c(x)-->0, the values of (D) over tilde((Ni))(XX) approach the literature values of tracer diffusion coefficients of X in Ni3Al. An estimation of Al 'tracer' diffusion coefficient in Ni3Al was obtained that is in reasonable agreement with other estimations in the literature. With decreasingconcentration of X in Ni3Al, the difference between Arrhenius parameters Q(XX)((Ni)), D-o(XX)(Ni) and respective values of Q(AlAl)((Ni)) and D-oAlAl((Ni)) decreases, Q(XX)((Ni)), D-o(Ni)(XX) agree with values reported in the literature fo

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

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2003

Confidentiality

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

Name of the periodical

Acta Materialia

ISSN

1359-6454

e-ISSN

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Volume of the periodical

51

Issue of the periodical within the volume

15

Country of publishing house

GB - UNITED KINGDOM

Number of pages

21

Pages from-to

4411-4421

UT code for WoS article

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EID of the result in the Scopus database

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