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Title: | Effect of thickness on the structure of cold-rolled aluminum |
Other Titles: | Structure of cold-rolled aluminum |
Authors: | Wright, Michael George |
Advisor: | Ham, R.K. |
Department: | Metallurgy |
Keywords: | aluminum;dislocation;Fuch's theory;"loss-fringe" model;cold-rolled |
Publication Date: | Feb-1964 |
Abstract: | The relative merits of methods of determining the density of dislocations are reviewed. In particular, consideration has been given to the evidence available tending to indicate a loss of dislocations from foils of deformed metal during thinning processes preparatory to viewing in the electron microscope. By measurement of the electrical resistivity ratio, 293˚K./77˚K., during thinning, annealed specimens of super-purity aluminum foil were shown to obey Fuch’s theory for thin films, but cold-rolled specimens could not be fitted to the theory. This discrepancy has been attributed to the loss of dislocations from the cold-rolled material, and the results are shown to be consistent with a “loss-fringe” model of dislocation loss from the surface. |
URI: | http://hdl.handle.net/11375/23613 |
Appears in Collections: | Digitized Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Wright_Michael_George_1964Feb_Masters.pdf | 17.92 MB | Adobe PDF | View/Open |
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