(a) Would it be possible to deform a zinc crystal in compression parallel to its [0001] axis using only the three (0001) < 1120 > slip systems? Explain,
Solution:
(a) Since all of the < 1120 > slip directions lie in basal plane, and the stress direction is normal tothe basal plane, the resolved shear stress on the basal plane will be zero and there should be no deformation.
(b) Yes. In this type of slip the slip directions have a finite component parallel to the basal planepole.
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