Metallurgical Engineering > GATE 2024 > Dislocations
The figure shows a dislocation loop (shown by the solid circle), whose Burgers vector is b (shown by the horizontal arrow inside the dislocation loop). Identify the nature of the dislocation segment at locations p, q and r.
The dash-dot lines show the horizontal and vertical diameters of the loop, and the arrow along the dislocation loop indicates the line vector.
A
p: pure edge, q: mixed, r: pure screw
B
p: pure edge, q: pure screw, r: pure edge
C
p: pure screw, q: mixed, r: pure screw
D
p: pure screw, q: pure edge, r: pure screw

Correct : a

Similar Questions

Magnitude of Burgers vector of the dislocation resulting from reaction of dislocations with Burgers vectors a/2[101] and a/2[01̅1̅] is _______.
#94 MCQ
A dislocation loop PQRSTU is on the (111) plane of a cubic single crystal with 1/6 Burgers vector. The dislocation segments PU̅ and PQ̅ are parall...
#124 MSQ
Given the strain rate (ε̇), dislocation density (ρ), dislocation velocity (v), which of the following relationship(s) is (are) correct? Assume that Orowan equat...
#166 MSQ

Related Topics

dislocation loop Metallurgical Engineering GATE 2024 dislocation nature identification pure edge dislocation mixed dislocation pure screw dislocation dislocation loop identification GATE Metallurgical Engineering dislocation vector identification

Unique Visitor Count

Total Unique Visitors

Loading......