Glide plane

The sliding system is a term from the crystal mechanics. He describes using sliding plane sliding and deformation of metals by dislocation motion.

During plastic deformation in each case those dislocations moved in their sliding prevails the maximum shear stress. With progressive deformation of the crystal lattice is rotated until in another sliding the maximum shear stress acts and this takes over the further deformation of the crystal. The required voltage will be higher than in the first active slip system in general, which is a contribution to the frequently observed solidification of metallic materials during deformation.

Sliding plane

The slip planes, the planes between layers of atoms with the closest packing and large layer spacing in a crystal. In them is at deformation instead of the displacement movement, because the relatively smallest critical shear stress is required. Slip planes are marked with the usual in crystallography between miller indices. Typical examples are the {111 } plane in the face-centered cubic lattice and a {110 } - { 112 } - or { 123 } planes in the cubic lattice raumzentriertem. In the hexagonal crystal system mostly {0001 } is the slip plane.

{ 110} slip plane in a body-centered cubic lattice

Sliding

The sliding direction is the direction of closest packing atom and thus the direction in which the sliding of the atomic layers with a relatively very small amount of energy is possible. Typical examples are the <110 > direction in the face-centered cubic lattice and the <111 > direction in the cubic lattice raumzentriertem. In the hexagonal crystal system is usually < 1120 > direction of sliding.

Slip systems of the main crystal structures

Of the possible slip planes and slip directions result in different possible slip systems.

Due to the different slip systems also the different good ductility of the crystal structures explained.

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