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Metallurgical Engineering · Q42

Physics of Metals in Metallurgy

Engineering and GATE · Metallurgical Engineering · question 42

Q42

A dislocation line in a fcc crystal dissociates into two partials which have their Burger vectors as a/6 [ 2 1 1 ] and a/6 [ 11 2 ], Indicate the correct statement.

A dislocation line in a fcc crystal dissociates into two partials which have their Burger vectors as   and   Indicate the correct statement.
A.
Burgers vector of the undissociated dislocation line is
Answer
B.
Burgers vector of the undissociated dislocation line is
C.
Energy of each partial is proportional to
D.
Energy of the undissociated dislocation line is lesser than the sum of energy of two partials

Answer: Option A

Solution

Answer: Option A
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