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Atomic Ordering and Lattice Site Location in Cubic (L12) Al3Ti-Based Alloys

Published online by Cambridge University Press:  22 February 2011

S. M. Kim ,
M. Kogachi ,
A. Kameyama  and
D. G. Morris
S. M. Kim
Affiliation:
AECL Research, Chalk River, Ontario, Canada KOJ 1J0
M. Kogachi
Affiliation:
Department of Materials Science, Faculty of Integrated Arts and Sciences, University of Osaka Prefecture, Sakai 593, Japan
A. Kameyama
Affiliation:
Department of Materials Science, Faculty of Integrated Arts and Sciences, University of Osaka Prefecture, Sakai 593, Japan
D. G. Morris
Affiliation:
Institute of Structural Metallurgy, University of Neuchatel, 2000 Neuchatel, Switzerland
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Abstract

Neutron powder diffraction measurements have been carried out on cubic Al3TiX compounds (X = Cu, Cr, Mn, Fe and Ni) as a function of temperature from room temperature to 1200°C. The data were analysed by the Rietveld method in order to determine the ordering and lattice site location of the constituent atoms. All these intermetallic compounds were found to be highly ordered at room temperature, and a significant increase in disorder at higher temperatures was observed only in alloys containing Cr and Cu.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 1209
Copyright
Copyright © Materials Research Society 1995

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References

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