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dc.contributor.advisorEl-Gizawy, A. Sherif (Ahmed Sherif), 1945-eng
dc.contributor.authorAkula, Deepa Reddyeng
dc.date.issued2007eng
dc.date.submitted2007 Falleng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on March 19, 2008)eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionThesis (M.S.) University of Missouri-Columbia 2007.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Mechanical and aerospace engineering.eng
dc.description.abstractThe objective of this research was to characterize the mechanical properties and study the microstructures of the friction stir welded joints to obtain the optimum process conditions that would result in the desired microstructure and properties for sheet metal formed structures. The joints were tested for mechanical properties such as tensile strength, ductility and formability and the microstructure was studied under optical microscope, scanning electron microscope and energy dispersive spectrograph (EDS). Tests were conducted on a Cincinnati Milling machine which was generously donated by the Boeing Company which was transformed in to a friction stir welding machine by designing and manufacturing the required fixtures. The experiments were designed using response surface methodology (RSM) as the design of experiments, a L9 array was designed and the joints fabricated were tested for their mechanical properties and the microstructure was studied to obtain the optimal process conditions. The optimal conditions were identified for friction stir welding of AA 2024-T3, AA 7075-T6 and a combination of both the alloys.eng
dc.identifier.merlinb62763957eng
dc.identifier.oclc213469080eng
dc.identifier.urihttps://hdl.handle.net/10355/4976
dc.identifier.urihttps://doi.org/10.32469/10355/4976eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.subject.lcshSheet-metal -- Microstructureeng
dc.subject.lcshSheet-metal -- Mechanical propertieseng
dc.subject.lcshSheet-metal -- Formabilityeng
dc.subject.lcshWelded joints -- Testingeng
dc.titleCharacterization of mechanical properties and study of microstructures of friction stir welded joints fabricated from similar and dissimilar alloys of aluminumeng
dc.typeThesiseng
thesis.degree.disciplineMechanical and aerospace engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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