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Long-Period Structures of Al-Rich Al-Ti Alloys

Published online by Cambridge University Press:  21 February 2011

R. Miida
Affiliation:
Department of Physics, Faculty of Science, Tohoku University, Sendai 980, Japan
D. Watanabe
Affiliation:
Department of Physics, Faculty of Science, Tohoku University, Sendai 980, Japan
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Abstract

Long-period one-dimensional antiphase structures with average domain sizes of non-integral multiples (M=1.33 and M=1.50−1.91) of the basic L12 cell, existing in the Al3-xTi1+x(0<x>0.33) alloys, were studied by electron diffraction, high-resolution electron microscopy and X-ray diffraction. The mode of mixing of M=1 and M=2 domains was revealed and the nature of lattice modulation associated with the antiphase structure was clarified. A new type of superstructure Al5Ti3 was also studied by highresolution electron microscopy and the structure model proposed previously was verified.

Type
Research Article
Copyright
Copyright © Materials Research Society 1984

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References

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