Formation of Ti₃Al and its embrittling effects on titanium-aluminum alloys

dc.contributor.authorBrauer, Frank Edwarden
dc.contributor.departmentMetallurgical Engineeringen
dc.date.accessioned2021-10-26T20:10:38Zen
dc.date.available2021-10-26T20:10:38Zen
dc.date.issued1967en
dc.description.abstractThe formation of Ti₃Al and its embrittling characteristics have been investigated in Ti-Al binary alloys up to 9.0 weight percent aluminum. The investigating tools were optical metallography, the Brown-type stress corrosion test and the Charpy V-notch Impact test. Segregated microstructures resulting from annealing in the (α+β) region were found to be extremely difficult to homogenize below the α-transus and could possibly explain the two-phase regions reported by many investigators. Sea-water stress corrosion tests reveal that a Widmanstatten structure is susceptible to stress corrosion cracking after aging for two hours at 1100°F. Much longer annealing times are required to produce susceptibility in equiaxed α-grains resulting from annealing in the (α+β) region. Toughness is less affected as a result of aging a Widmanstatten structure than an equiaxed structure, although the reduction is significant in both cases.en
dc.description.degreeM.S.en
dc.format.extent51 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/106209en
dc.language.isoenen
dc.publisherVirginia Polytechnic Instituteen
dc.relation.isformatofOCLC# 20395249en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1967.B73en
dc.subject.lcshAluminum alloysen
dc.subject.lcshTitanium alloysen
dc.titleFormation of Ti₃Al and its embrittling effects on titanium-aluminum alloysen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMetallurgical Engineeringen
thesis.degree.grantorVirginia Polytechnic Instituteen
thesis.degree.levelmastersen
thesis.degree.nameM.S.en

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