Effect of Polyslip on Strain-Hardening in Aluminum Single Crystals (thesis). PDF Download
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Investigations were carried out on the effect of polyslip on strain hardening in fcc single crystals. It is shown that the rate of strain hardening increases for the oriertations wherein attractive dislocation intersections occur and that the orientations that produce the greater number of such intersections exhibit the greater strain hardening. It was found that the barrier reactions considered by Hirth are not responsible for any strengthening. Special experiments on specimens with a STA111! tensile axis revealed that the pre- exponertial coefficient of the intersection equation is not constant as was previously assumed but varies by several orders of magnitude. Furthermore, at temperatures above the critical temperature, the deformation mechanism is thermally activated. (auth).
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Investigations were carried out on the effect of polyslip on strain hardening in fcc single crystals. It is shown that the rate of strain hardening increases for the oriertations wherein attractive dislocation intersections occur and that the orientations that produce the greater number of such intersections exhibit the greater strain hardening. It was found that the barrier reactions considered by Hirth are not responsible for any strengthening. Special experiments on specimens with a STA111! tensile axis revealed that the pre- exponertial coefficient of the intersection equation is not constant as was previously assumed but varies by several orders of magnitude. Furthermore, at temperatures above the critical temperature, the deformation mechanism is thermally activated. (auth).
Author: Jimmy Dale Mote
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Languages : en
Pages : 35
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Author: Jimmy Dale Mote
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Category : Aluminum
Languages : en
Pages : 40
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Category : Nuclear energy
Languages : en
Pages : 1622
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Languages : en
Pages : 2180
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Category : Aeronautics
Languages : en
Pages : 314
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: U.S. Atomic Energy Commission. Division of Technical Information
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Category : Nuclear energy
Languages : en
Pages : 900
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Author: University of California, Berkeley
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Category : Commencement ceremonies
Languages : en
Pages : 1032
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Languages : en
Pages : 44
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Author: Lawrence Ames Shepard
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Category : Aluminum crystals
Languages : en
Pages : 120
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