DIFFERENTIATE BETWEEN TWINNING AND SLIP?
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Hey Mate !!
First Of all
▶What is Twinning and slip ?
AnsweR :-
Two prominent mechanisms of plastic deformation, namely slip and twinning. Slip Is the prominent mechanism of plastic deformation in metals. It involves sliding of blocks of crystal over one other along definite crystallographic planes, called slip planes.
Difference :-
The difference between slip and twinning is given below:
Difference # Slip:
1. It occurs in discrete multiples of atomic spacing.
2. The orientation of the crystal above and below the slip plane is the same after deformation as before.
3. It occurs over wide planes.
4. Slip begins when shearing stress on the slip plane in the slip direction reaches a threshold value called the critical resolved shear stress.
5. It takes place in several milli seconds.
6. Slip lines do not appear during any heat treatment.
7. Slip lines disappear after grinding or other surface finishing operations.
8. Slip lines may be present in even or odd numbers.
Difference # Twinning:
1. Atom movements are much less than the atomic spacing.
2. Orientation difference takes place across the twin plane.
3. Every atomic plane is involved.
4. There is no critical resolved shear stress for twinning.
5. It takes place in a few microseconds.
6. Twin lines appear during the annealing operation of materials.
7. Twin lines run through the whole depth of the material and hence do not disappear on grinding etc.
8. Twin lines always occur in pairs
Thanks _!!
First Of all
▶What is Twinning and slip ?
AnsweR :-
Two prominent mechanisms of plastic deformation, namely slip and twinning. Slip Is the prominent mechanism of plastic deformation in metals. It involves sliding of blocks of crystal over one other along definite crystallographic planes, called slip planes.
Difference :-
The difference between slip and twinning is given below:
Difference # Slip:
1. It occurs in discrete multiples of atomic spacing.
2. The orientation of the crystal above and below the slip plane is the same after deformation as before.
3. It occurs over wide planes.
4. Slip begins when shearing stress on the slip plane in the slip direction reaches a threshold value called the critical resolved shear stress.
5. It takes place in several milli seconds.
6. Slip lines do not appear during any heat treatment.
7. Slip lines disappear after grinding or other surface finishing operations.
8. Slip lines may be present in even or odd numbers.
Difference # Twinning:
1. Atom movements are much less than the atomic spacing.
2. Orientation difference takes place across the twin plane.
3. Every atomic plane is involved.
4. There is no critical resolved shear stress for twinning.
5. It takes place in a few microseconds.
6. Twin lines appear during the annealing operation of materials.
7. Twin lines run through the whole depth of the material and hence do not disappear on grinding etc.
8. Twin lines always occur in pairs
Thanks _!!
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