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Jerky Motion of Dislocations in Ni3Al and Ni3Ga. Experimental Observations and Modelling.

Published online by Cambridge University Press:  01 January 1992

Guy Molenat ,
Daniel Caillard ,
Alain Couret  and
Vaclav Paidar
Guy Molenat
Affiliation:
CEMES-LOE/CNRS, B.P. 4347, 31055 Toulouse Cedex, France,
Daniel Caillard
Affiliation:
CEMES-LOE/CNRS, B.P. 4347, 31055 Toulouse Cedex, France,
Alain Couret
Affiliation:
CEMES-LOE/CNRS, B.P. 4347, 31055 Toulouse Cedex, France,
Vaclav Paidar
Affiliation:
Institute of Physics, Na Slovance 2, 180 40 Praha 8, Czechoslovakia.
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Abstract

Recent in situ and post mortem observations in Ni3Al and Ni3Ga alloys have yielded consistent results concerning the structure and the movement of screw superdislocations in {111} planes. The different stresses involved in the observed cross-slip processes have been computed, and the outline of a new model of stress anomaly has been formulated on the basis of these results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 287
Copyright
Copyright © Materials Research Society 1995

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References

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