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A
slip plane (or glide plane) for a dislocation must contain both the Burgers
vector and Line vector of the dislocation. Dislocation motion in this plane
is said to be "conservative" as no atoms are added or subtracted from the
dislocation line. Motion takes place by local readjustment of the atom
positions in the region of the dislocation line. The combination of a slip
plane and a slip direction in that plane constitutes a "slip system." Slip
systems for various metals are listed in the table. Note that the slip
planes tend to be planes of closest packing and the slip directions close
packed directions. |
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