Asingle crystal of a metal is oriented for a tensile test such that its slip plane normal makes an angle of 64.2° with the tensile axis. three possible slip directions make angles of 30°, 48°, and 78° with the same tensile axis.

(a) which of these three slip directions is most favored?

(b) if plastic deformation begins at a tensile stress of 1.6 mpa (232.1 psi), determine the critical resolved shear stress for this metal

The most favored slip direction is at an angle of 30 degrees with the tensile axis.

The critical resolved shear stress for zinc is 0.9MPa :)

The slip plane normal makes an angle of 65  with the tensile axis. Also, the slip plane direction angle with the tensile axis is calculated above as 30 Thus, with the help of these two values of angle and the mentioned value of given tensile stress, the value of critical resolved shear stress is calculated.

Explanation:

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