Title
On the mechanism of cross slip in Ni < inf> 3 AI
Document Type
Article
Publication Date
12-1-1989
Abstract
The mechanical properties of Ll2 intermetallic alloys have been previously described by models based on the assumption that cube cross slip is the rate-limiting step. In this study, it was demonstrated that the cube cross-slip event must be reversible under a change in loading direction. This observation allows the cross-slip models to remain consistent with cyclic deformation data. Additionally, this observation was used as a critical test of the available cross-slip models. It was demonstrated that the rate-limiting step cannot be a total cross-slip event, in which both α/2(110) superpartial dislocations cross slip to the cube plane. Conversely, the limited cross-slip event proposed by Paidar, Pope, and Vitek (PPV) was demonstrated to be consistent with the reversibility constraint. This lends additional experimental support to the PPV model. © 1989 The Metallurgical Society of AIME.
Publication Title
Metallurgical Transactions A
Recommended Citation
Milligan, W.,
&
Antolovich, S.
(1989).
On the mechanism of cross slip in Ni < inf> 3 AI.
Metallurgical Transactions A,
20(12), 2811-2818.
http://doi.org/10.1007/BF02670173
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/4498