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Stress State Required for Pyramidal Dislocation Movement in Zinc

Blish, R. C., II and Vreeland, T., Jr. (1968) Stress State Required for Pyramidal Dislocation Movement in Zinc. Journal of Applied Physics, 39 (6). pp. 2816-2818. ISSN 0021-8979.

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A tension or compression stress in such a direction that basal slip is minimized can produce second-order pyramidal slip bands in zinc single crystals. The stress required to initiate pyramidal dislocation motion is not sensitive to temperature. However, dislocation velocity at a given stress is sensitive to temperature and the very small dislocation velocity at low temperatures has lead to an erroneous estimate of a ``starting stress'' for pyramidal dislocations. Dislocation velocity at a constant temperature was found to be a function of the magnitude, but not the sense of the resolved shear stress.

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Additional Information:©1968 The American Institute of Physics. Received 21 December 1967. The authors wish to express their appreciation to G.R. May for his tireless efforts in crystal preparation and to the U.S. Atomic Energy Commission who sponsored this investigation. This work was used by R.C. Blish, II for partial fulfillment of Ph.D. requirements at the California Institute of Technology.
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Official Citation:Stress State Required for Pyramidal Dislocation Movement in Zinc Blish, R. C. and Vreeland, T., Journal of Applied Physics, 39, 2816-2818 (1968), DOI:
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Deposited On:22 Jul 2008 22:09
Last Modified:11 Feb 2015 22:36

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