Elastic Properties of a Compound Tilt Dislocation Wall

抄録

The properties of dislocation wall consisting of an infinite number of two kinds of edge dislocations whose Burgers vectors are at right angles to each other, are investigated on the basis of isotropic elasticity theory. The stress field in the region apart from the wall is divided by the planes perpendicular to the wall into unequally spaced bands, which are composed of positive and negative regions of the stress field. On the other hand, dilatational strain field is divided into equally spaced bands. It is concluded that the pinned compound tilt dislocation wall is a more effective barrier in comparison with the simple tilt wall for the penetration of dislocations.