Question

The dislocation density of the material is defined as the ratio of total dislocation length per unit volume of the material.

(a) True

(b) False

I got this question in an online quiz.

Origin of the question is Cold Rolling topic in section Mechanical Working of Metals of Casting-Forming-Welding II

Answer 1

The correct choice is (a) True

The explanation is: In general, the dislocation density of a material is defined as the ratio of total dislocation length per unit volume of the material. It is also defined as the number of dislocations that intersect a unit area of a random part of the material. The dislocation density mainly determines the strength of the material.