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Glide of Perfect Dislocations in TiAl

Published online by Cambridge University Press:  01 January 1992

Sylvte Farenc  and
Alain Couret
Sylvte Farenc
Affiliation:
CEMES-LOE/CNRS, BP 4347, 31055 Toulouse Cedex, France.
Alain Couret
Affiliation:
CEMES-LOE/CNRS, BP 4347, 31055 Toulouse Cedex, France.
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Abstract

In situ deformation experiments have been performed in TiAl in order to study the glide of perfect dislocations. The deformation is accomodated by the jerky movement of rectilinear screw dislocations moving slower than the edge segments. This behaviour is interpreted in terms of frictional forces which originate in a non-planar structure of the dislocation core.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 465
Copyright
Copyright © Materials Research Society 1995

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References

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