Stress State Required for Pyramidal Dislocation Movement in Zinc
- 1 May 1968
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (6) , 2816-2818
- https://doi.org/10.1063/1.1656678
Abstract
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.This publication has 6 references indexed in Scilit:
- Dislocation density and rate effects in the twinning of zincPhilosophical Magazine, 1968
- Second-order pyramidal slip in zinc single crystalsMaterials Science and Engineering, 1967
- Orientation Dependence of a Dislocation Etch for ZincJournal of Applied Physics, 1966
- Dislocations and Etch Figures in High Purity ZincJournal of Applied Physics, 1963
- The influence of grain size on the yield phenomenon in steelActa Metallurgica, 1961
- The dynamics of twinning and the interrelation of slip and twinning in zinc crystalsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957