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Metastable Structures in Quenched Cr-Ti and Electron Irradiated Cu-Ti Alloys

Published online by Cambridge University Press:  25 February 2011

W. Sinkler  and
D.E. Luzzi
W. Sinkler
Affiliation:
Department of Materials Science and the Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272
D.E. Luzzi
Affiliation:
Department of Materials Science and the Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272
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Abstract

Electron diffraction and imaging are used to characterize and contrast the structures and microstructures of a metastable Cr-Ti phase formed after quenching and a metastable Cu-Ti phase formed during electron irradiation. In both phases, marked structural anisotropies are found which have characteristics common to both of these bcc-based materials. It has been reported in the literature that this quenched-in metastable Cr-Ti phase undergoes a spontaneous structural relaxation into the amorphous state during sub-eutectoid temperature anneals [1]. Despite the similarity of the present experiments to those reported in the literature, an amorphization transformation was not observed. It is argued that the amorphization of this material requires the stabilization of the amorphous phase by an impurity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 157: Symposium A – Beam-Solid Interactions: Physical Phenomena , 1989 , 819
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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