Interdiffusion in ternary Ni3Al/Ni3Al-X diffusion couples with X = Cr, Fe, Nb and Ti.

Result code in IS VaVaI

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Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Interdiffusion in ternary Ni3Al/Ni3Al-X diffusion couples with X = Cr, Fe, Nb and Ti.

Original language description

The gamma' single phase interdiffusion in selected pseudo-binary sections of the Ni3Al-X (X = Cr, Fe, Nb and Ti) ternary alloys was studied in temperature interval 1173-1533 K in order to assess the influence of the site-preference of components upon their diffusion rate. It was observed that (a) Higher fraction of Cr or Fe on Al sublattice leads to lower values of D ((Ni))(XX). (b) Both Ti and Nb, preferring strongly the Al sublattice, show significantly lower interdiffusion coefficients than Fe and Cr. (c) The equation D-XX((Ni)) = D-AlAl((Ni)) holds for Ti and Nb, whereas the relation D-XX((Ni)) > D-AlAl((Ni)) is valid for Cr and Fe. (d) Activation enthalpy of Q(ii)((i)) shows a systematic decrease with increasing valence electron number of the alloying element i. (e) Nb shows a transient behavior Q - it has low values of diffusion coefficient compared to its site occupation but also a low activation energy.

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

Intermetallics

ISSN

0966-9795

e-ISSN

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Volume of the periodical

11

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

939-946

UT code for WoS article

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EID of the result in the Scopus database

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