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The interaction of screw dislocation and edge dislocation produces ______ on the edge dislocation and _______ on the screw dislocation.
The following diagram shows a positive edge dislocation. The AA’ shows the slip plane for the dislocation. Above the slip plane stress is _________ in nature, and below the slip plane stress is _______ in nature.
The Burgers vector b is the vector which defines the magnitude and direction of slip. For a pure edge dislocation, the Burgers vector is perpendicular to the dislocation line, while for a pure screw dislocation, the Burgers vector is parallel to the dislocation line.
A ________ is a sharp break in the dislocation line by moving it out of the slip plane. A _______ is a sharp break in the dislocation line, but it remains in the slip plane.
Which of the following statements are true about edge dislocations?
P. Edge dislocations do not have an extra half plane associated with them.
Q. The Burger vectors is perpendicular to the direction.
R. Edge dislocations can avoid obstacles by cross-slip.
S. Depending on geometry, parallel edge dislocations of opposite signs can attract or repel one another.
What is the difference between the angle of Burgers vector and dislocation line in edge dislocation and screw dislocation?
An elliptical dislocation loop is gliding on plane ABCD of a single crystal of BCC material as shown in the following figure. It is gliding along the burger vector 'b'. Identify the correct statement.
Physics of Metals in Metallurgy mcq question image
P. Plane ABCD belongs to the family of (110).
Q. Burger vector 'b' belong to direction.
R. Dislocation has the edge character at point x and the screw character at point z.
S. Dislocation has the screw character at point x
Cross slip can occur in both the edge dislocation as well as in screw dislocation.
In a positive edge dislocation, the atomic arrangement results in a ____________ above the slip plane and a ______________ below the slip plane.
Which of the below are inversions of slider crank mechanism?
1. Oscillating cylinder engine mechanism
2. Toggle mechanism
3. Radial cylinder engine mechanism
4. Quick return mechanism