Question
Download Solution PDFWhich of the following statements regarding screw dislocation is correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
- When a dislocation moves under applied shear stress:
- Individual atoms move in directions parallel to the Burgers vector;
- The dislocation moves in a direction perpendicular to the dislocation line.
- An edge dislocation, therefore, moves in the direction of the Burgers vector and lies perpendicular to the burger vector.
- Whereas a screw dislocation moves in a direction perpendicular to the Burgers vector and lies parallel to burger vector.
|
Dislocation |
Position |
Direction of dislocation |
|
Edge |
Perpendicular |
Parallel |
|
Screw |
Parallel |
Perpendicular |
Last updated on Jul 2, 2025
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