Accession Number : AD0618154

Title :   DISLOCATION DISTRIBUTION IN DEFORMED COPPER SINGLE CRYSTALS,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF PURE PHYSICS

Personal Author(s) : Basinski,Z. S.

Report Date : 22 JUN 1964

Pagination or Media Count : 19

Abstract : Observations of dislocation distribution in copper single crystals oriented for single glide and deformed at low temperatures are described. In stage I the dislocation population consists mainly of bundles of long edge dislocations belonging to the primary glide system. They are distributed very non-uniformly with dense clumps separated by large areas of perfect material. The dislocations become more tangled with increasing deformation until in stage II they consist mainly of networks lying approximately parallel to the active glide plane and dense clumps of primary edge dislocations. Large differences in distribution are observed in areas near to and far from deformation bands. The results of thin foil observations are compared with data obtained by other methods, e.g., etch pitting and slip lines and their significance are discussed. (Author)

Descriptors :   (*COPPER, CRYSTAL DEFECTS), (*SINGLE CRYSTALS, COPPER), DEFORMATION, FOILS(MATERIALS), MICROSTRUCTURE, CANADA

Distribution Statement : APPROVED FOR PUBLIC RELEASE