Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment

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dc.contributor.advisorKnutsen, Robert Den_ZA
dc.contributor.authorOguh, Jeremiah Chikaen_ZA
dc.date.accessioned2014-07-31T11:19:20Z
dc.date.available2014-07-31T11:19:20Z
dc.date.issued2008en_ZA
dc.descriptionIncludes abstract.
dc.descriptionIncludes bibliographical references (leaves 87-90).
dc.description.abstractThe temporary alloying process involves a two stage heat treatment during which hydrogen is firstly introduced into the titanium sample (hydrogenation), and secondly removed from the sample under vacuum annealing (dehydrogenation), thereby completing the cycle. During the hydrogenation stage, the high diffusivity of hydrogen in titanium alloys at elevated temperatures is used to introduce hydrogen into the sample. Hydrogen being a stabilizing element of titanium alloys, lowers the β → (α+ β) transition temperature and slows the kinetics of the β → α phase transformation. This leads to the generation of new microstructures. Fine α-grain structures and martensitic plates were observed upon completion of the hydrogenation treatment.en_ZA
dc.identifier.apacitationOguh, J. C. (2008). <i>Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/5495en_ZA
dc.identifier.chicagocitationOguh, Jeremiah Chika. <i>"Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2008. http://hdl.handle.net/11427/5495en_ZA
dc.identifier.citationOguh, J. 2008. Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Oguh, Jeremiah Chika AB - The temporary alloying process involves a two stage heat treatment during which hydrogen is firstly introduced into the titanium sample (hydrogenation), and secondly removed from the sample under vacuum annealing (dehydrogenation), thereby completing the cycle. During the hydrogenation stage, the high diffusivity of hydrogen in titanium alloys at elevated temperatures is used to introduce hydrogen into the sample. Hydrogen being a stabilizing element of titanium alloys, lowers the β → (α+ β) transition temperature and slows the kinetics of the β → α phase transformation. This leads to the generation of new microstructures. Fine α-grain structures and martensitic plates were observed upon completion of the hydrogenation treatment. DA - 2008 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2008 T1 - Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment TI - Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment UR - http://hdl.handle.net/11427/5495 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5495
dc.identifier.vancouvercitationOguh JC. Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2008 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5495en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Mechanical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMechanical Engineeringen_ZA
dc.titleInvestigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatmenten_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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