Question

What is the slip plane for an FCC crystal?

(a) {110}

(b) {111}

(c) {112}

(d) {123}

The question was posed to me in a job interview.

My question is taken from Plastic Deformation topic in division Plastic Deformation and Creep in Crystalline Materials, Elastic, Anelastic and Viscoelastic Behaviour of Engineering Material & Metallurgy

Answer 1

Correct choice is (b) {111}

The best explanation: A slip plane and a slip direction constitute a slip system of the material. FCC crystal exhibits slip plane {111} in the slip direction <110>.