Abstract
Single crystals of LiF and Al are deformed in shear at a number of constant strain-rates in the range 10−4 to 1600 s−1. These constant rate tests are supplemented by a series of jump tests in which a sharp increment in strain rate is imposed during the quasi-static straining. Dislocation arrangements are observed by etch-pits technique for LiF crystals and by TEM for Al crystals. It is shown that cell sizes vary inversely with flow stress and strain-rate sensitivity.
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Chiem, C.Y., Duffy, J. Strain-rate history effects and microstructural aspects in lithium fluoride and aluminium single crystals after dynamic loading. Rheol Acta 21, 413–415 (1982). https://doi.org/10.1007/BF01534305
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DOI: https://doi.org/10.1007/BF01534305