Abstract
The tensile deformation behavior of the intermetallic compound AuZn has been investigated over a range of temperature, composition, and grain size. Polycrystalline AuZn was found to behave in a ductile manner over the temperature range 77° to 533°K, and the composition range 48.0 to 52.0 at. pct Au, except for the alloys containing less than 49.5 at. pct Au at 77°K, which were brittle. The yield stress and flow stress were found to increase linearly with deviation from stoichiometry over the temperature range 133° to 463°K. A region of temperature independent work hardening was observed for all compositions at temperatures below 300°K. The nonstoichiometric alloys displayed a sharp increase in work hardening rate at temperatures below 150°K also. In addition to the previously accepted slip on the {ll0}(001) system, slip on the {21l}(lll) system has been postulated to account for the observed ductility and high work hardening rate.
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Formerly Graduate Student, Department of Metallurgy, University of British Columbia, Vancouver, Canada.
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Causey, A.R., Teghtsoonian, E. Tensile deformation of polycrystalline beta prime-AuZn. Metall Trans 1, 1177–1183 (1970). https://doi.org/10.1007/BF02900228
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DOI: https://doi.org/10.1007/BF02900228