Two opposite sign dislocations are separated by 100 nm in iron with gr – McqOptions

MCQOPTIONS

1.	Two opposite sign dislocations are separated by 100 nm in iron with grain size 4 mm. Determine the attractive force and total force on the two dislocations? Shear modulus of iron is 80 GPa, and the lattice parameter is 2.86 Ao
A.	312.5910<sup>-3</sup> N/m, 1.2510<sup>-9</sup> N
B.	112.5910<sup>-3</sup> N/m, 8.2510<sup>-9</sup> N
C.	312.5910<sup>-9</sup> N/m, 1.2510<sup>-3</sup> N
D.	312.59 N/m, 1.25 N
Answer» B. 112.5910<sup>-3</sup> N/m, 8.2510<sup>-9</sup> N

Discussion

No Comment Found

Related MCQs

The number of dislocation of the same sign in the vertical plane is in stable equilibrium.
Two opposite sign dislocations are separated by 100 nm in iron with grain size 4 mm. Determine the attractive force and total force on the two dislocations? Shear modulus of iron is 80 GPa, and the lattice parameter is 2.86 Ao
The force is _____________ between 2 parallel screw dislocation and ____________ for antiparallel screw dislocation.
Dislocation of opposite sign on the same plane will ___________ each other.
Dislocation of same sign on the same plane will ___________ each other.
Shear stress required to bend a dislocation of radius R and burger vector b is P. What will be shear stress needed to turn a dislocation of radius 2R and burger s vector 2b to bend the dislocation?
Free energy of crystal __________ by introduction of dislocation in the structure.
The strain energy of dislocation for each atom is in order of few __________
For a dislocation with burger s vector equal to b, the strain energy per unit length is X. What will be the strain energy with burger s vector is equal to 3b?
The ratio of strain energy of edge dislocation to screw dislocation is equal to ___________<br>Where v is poison s ratio, and b is the Burger s vector.