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Tensile Kinking in Single Crystals of Cadmium
Author(s) -
Blasdale K. C. A.,
King R.
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.19650100117
Subject(s) - materials science , impurity , flow stress , dislocation , slip (aerodynamics) , cadmium , single crystal , composite material , crystallography , condensed matter physics , strain rate , metallurgy , thermodynamics , chemistry , physics , organic chemistry
Large numbers of kinks form in single crystal specimens of certain samples of high purity cadmium on extension. The kinks appear at random along the length of the specimen during extension and no correlation with observable surface features or accidental damage has been found. The variation of kinking with purity, temperature and rate of strain has been examined. Kinking decreases with increase of impurity; this may be an indirect effect due to change of flow stress with impurity. The maximum kinking tendency is observed at temperatures near 20 °C. It is suggested that kinks form as a result of the holding up of slip dislocations at a dislocation array.