Investigating the potential for manipulating the movement of a screw dislocation, typically prone to {110} slip, to instead traverse {112} slip planes by applying specific strains in Molecular Dynamics Analysis.
Genearally, a screw dislocation would slip along any slip with a chance. But it can not be sure that you will observe the slip.
I'm assuming bcc?
If you are talking about cumulative slip, then yes the cumulative slip will be {112} if you shear along a {112} plane. If you are talking about the fundamental slip behavior, then no, everything points to bcc screw dislocation slip being fundamental {110} steps with cross-slip to different planes. "True" {112} slip could be thermally activated at higher temperatures, but I'm not sure if it would be distinguishable from {110} zig-zag and the two would be in competition.
Also, with classic MD, be careful of the interatomic potential that you use as most will incorrectly predict the slip nature. You want a potential that predicts a compact (a.k.a. non-polarized) core and a single-humped Peierls barrier.
[1] C.R. Weinberger, B.L. Boyce, C.C. Battaile, Slip planes in bcc transition metals, International Materials Reviews 58(5) (2013) 296-314.
[2] L.M. Hale, J.A. Zimmerman, C.R. Weinberger, Simulations of bcc tantalum screw dislocations: Why classical inter-atomic potentials predict {112} slip, Computational Materials Science 90 (2014) 106-115.
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