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Analysis of Impurity Diffusion in Ordered Alloys and Intermetallic Compounds of the L12 Type

Published online by Cambridge University Press:  10 February 2011

I.V. Belova  and
G.E. Murch
I.V. Belova
Affiliation:
Department of Mechanical Engineering, The University of Newcastle, Callaghan, NSW 2308, AUSTRALIA
G.E. Murch
Affiliation:
Department of Mechanical Engineering, The University of Newcastle, Callaghan, NSW 2308, AUSTRALIA
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Abstract

In this paper we present a new formalism for impurity diffusion in A3B alloys taking the L12 structure. We analyse two limiting cases, where impurities remain entirely on the α sublattice and where the impurities are distributed between the two sublattices but the actual mobility is largely confined to the α sublattice. Application is made to In diffusion in Ni3Al and Al diffusion (which may itself act like an impurity on the α sublattice) in Ni3Al.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 527: Symposium Z – Diffusion Mechanisms in Crystalline Materials , 1998 , 159
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

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