The effect of annealing on dislocations in an al5ti2fe alloy
- 1 February 1992
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 65 (2) , 389-401
- https://doi.org/10.1080/01418619208201529
Abstract
The influence of annealing at relatively low temperatures on the dislocations present in a deformed Al5Ti2Fe alloy has been examined by in situ transmission electron microscopy. It is shown that for this material the separation of the partial dislocations constituting the super-dislocations can increase rapidly in a non-recoverable manner during annealing. This variation corresponds to a significant decrease in the antiphase boundary fault energy from that of the deformed state. Such changes in fault energy may be responsible for a dynamic pinning of dislocations that can significantly affect mechanical properties of the material.Keywords
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