A dislocation is ...Question 4Answera.a single extra atom inserted into a 3D crystal structureb.an extra line of atoms inserted into a 3D crystal structurec.an extra plane of atoms inserted into a 3D crystal structure

We consider a dislocation in an FCC crystal with the following characteristics: criticalshear stress:0.5MPa, line dislocation vector:1/sqrt(6)*[-1 -1 2] an Burgers vector:ao/2*[-1 1 0](1) Determine the slip plane for this dislocation(2) Compute the magnitude of the applied normal stress in the [0 1 0] direction

Explain the difference between a dislocation and subluxation.BoldItalicUnderline

With the aid of diagrams, describe what dislocations are and what role theyplay in yielding.

Describe the different ways in which dislocations can be prevented from moving.Write down expressions for the yield strength, τy, for situations in which thedominant contribution arises from:(i) Dislocation bowing around precipitate particles of mean spacing L,(ii) Dislocations cutting through a forest of dislocations with density ρd.Explain how additional dislocations can be generated during plastic flow andhow this results in strain-hardening of the material.

In a cubic crystal each corner atom is shared with how many cubes? A. 2 B. 4 C. 7 D. 8