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Glide Mechanisms of <001> Dislocations in NiAl

Published online by Cambridge University Press:  10 February 2011

D. Caillard
D. Caillard*
Affiliation:
CEMES-CNRS, BP 4347, 31055 Toulouse Cedex, France
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Abstract

The glide properties of <001> dislocations have been studied by in situ straining experiments at and below room temperature, with the aim of studying slip, cross-slip, Peierls friction forces, and pinning at small obstacles. Most results are in a good agreement with atomistic calculations. It is concluded that unpinning from small extrinsic obstacles is probably the rate controlling mechanism in this temperature range and in the soft orientation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK9.9.1
Copyright
Copyright © Materials Research Society 1999

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References

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