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dc.contributor.advisorTaleff, Eric M.
dc.creatorNiazi, Amanda
dc.date.accessioned2017-06-14T16:13:02Z
dc.date.available2017-06-14T16:13:02Z
dc.date.issued2006-05
dc.identifierdoi:10.15781/T23J3965G
dc.identifier.urihttp://hdl.handle.net/2152/47217
dc.description.abstractFine-grained aluminum AA5083 has been used in General Motors (GM) Corporation's proprietary manufacturing process, quick-plastic forming, a derivative of superplastic forming. The high magnesium content in AA5083 provides solid-solution strengthening and is necessary in obtaining required postformed strength. However, the high magnesium content makes processing difficult due to the large forces and high power required during rolling. This report studies an aluminum with a lower magnesium content, 3.0wt.% Mg, with copper and zinc additions for age-hardening and bismuth additions for tribological reasons. The six alloys analyzed for this investigation, a reference alloy (Al-3.30Mg-0.72Mn), a copper-containing alloy, a zinc-containing alloy, a copperand zinc-containing alloy and two bismuth-containing alloys, were cast and processed into sheet material. Differential scanning calorimetry (DSC) and electrical conductivity experiments were conducted to determine optimum heat treatments prior to rolling. Particle-size distribution analysis was performed at each processing step to track particle-size distribution evolution during processing. The mechanical behavior of these materials was characterized using elongation-to-failure (EF) tests and strain-rate-change (SRC) test coupled with grain size measurements. Results from this analysis are encouraging for more detailed studies.en_US
dc.format.mediumelectronicen_US
dc.language.isoengen_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.subjectFine-grained aluminum (AA5083)en_US
dc.subjectManufacturing processen_US
dc.subjectMagnesium contenten_US
dc.titleThe effect of Cu, Zn, and Bi additions on the high-temperature deformation behavior of A1-3.0Mg alloysen_US
dc.typeThesisen_US
dc.description.departmentMechanical Engineeringen_US
dc.type.genreThesisen_US
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineMechanical Engineeringen_US
thesis.degree.grantorUniversity of Texas at Austinen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
dc.rights.restrictionRestricteden_US


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