Microtexture and microstructure evolution during necking in a Zr-1% Nb alloy |
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| Authors: | T. M. Poletika A. P. Pshenichnikov S. L. Girsova |
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| Affiliation: | 1.Institute of Strength Physics and Materials Science, Siberian Branch,Russian Academy of Sciences,Tomsk,Russia |
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| Abstract: | The evolution of a microstructure and Schmid factors during tension under necking conditions are analyzed by electron backscatter diffraction. The oscillatory instability of the plastic flow in the deformation zone in the hardening-softening mode is found to be related to geometrical hardening (softening) during the reorientation of easy slip planes in grains with respect to the loading axis. A relation between the activities of various slip systems and the evolution of quantitative microstructure parameters is revealed. |
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