The mechanisms by which the total length of dislocation line in a crystal can increase during deformation are discussed. The importance of more direct information concerning multiplication processes to a better understanding of yielding, strain hardening, and fracture is emphasized. Experimental observations on the growth of slip bands in magnesium oxide and lithium fluoride by transmission electron microscopy and optical etch-pit techniques have suggested that jogs on screw dislocations play an important role in the multiplication.
KeywordsBurger Vector Slip Band Screw Dislocation Dislocation Loop Dislocation Line
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