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The Instability of the Work Hardened State. II. Slip in “Alien” Dislocation Distributions
Author(s) -
Basinski Z. S.,
Jackson P. J.
Publication year - 1965
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19650100105
Subject(s) - slip (aerodynamics) , frank read source , materials science , dislocation , copper , slip line field , crystallography , instability , geometry , hardening (computing) , work hardening , nucleation , mechanics , dislocation creep , composite material , condensed matter physics , metallurgy , physics , chemistry , thermodynamics , microstructure , mathematics , layer (electronics)
The mechanism of slip in copper crystals with extraneously deformed surfaces was investigated using an etch pit technique. Some suggestions are made as to the deformation of crystals with hard surface layers. Slip in crystals oriented for multiple glide and in polycrystals is also discussed. Experiments of the latent hardening type were carried out on copper crystals by altering the slip system during the course of deformation. Phenomena characteristic of slip in alien dislocation distributions were observed when the slip plane was changed but not when only the slip direction was altered. The stability of Stage II dislocation distributions is discussed in the light of these experiments. It is concluded that the character of slip in Stage II is determined by the geometry of the dislocation distribution.