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Dislocations and Point Defects in Hexagonal Metals ( Atomizdat , Moscow , 1973 ) [ in Russian ]
A. George J. Rabier (1987)
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O. A. Troitskii (1973)
Dislocations and Point Defects in Hexagonal Metals
Abstract Self-blocking of c + a edge dislocations at second-order pyramidal slip in magnesium single crystals whose axis is parallel to the c axis has been found. Self-blocking is confirmed by the dislocation extension along a selected direction in the absence of external stress. Transmission electron microscopy (TEM) images of (c + a) dislocations extended in the \(\left\langle {1\bar 100} \right\rangle\) directions are obtained. A model of a two-valley potential relief in Mg is proposed: the Peierls relief determines the second-order slip of (c + a) dislocation in the pyramid plane, while the immersion in deep valleys is related to splitting of the c + a edge segment (or the spread of its core) in the basal plane.
Crystallography Reports – Springer Journals
Published: Jul 1, 2012
Keywords: Crystallography and Scattering Methods
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