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Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment
Includes abstract.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Mechanical Engineering
2014
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| _version_ | 1867613764949377024 |
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| access_status_str | Open Access |
| author | Oguh, Jeremiah Chika |
| author2 | Knutsen, Robert D |
| author_browse | Knutsen, Robert D Oguh, Jeremiah Chika |
| author_facet | Knutsen, Robert D Oguh, Jeremiah Chika |
| author_sort | Oguh, Jeremiah Chika |
| collection | Thesis |
| description | Includes abstract. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/5495 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:41:20.599Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Mechanical Engineering |
| publisherStr | Department of Mechanical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/5495 Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment Oguh, Jeremiah Chika Knutsen, Robert D Mechanical Engineering Includes abstract. Includes bibliographical references (leaves 87-90). 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. 2014-07-31T11:19:20Z 2014-07-31T11:19:20Z 2008 Master Thesis Masters MSc http://hdl.handle.net/11427/5495 eng application/pdf Department of Mechanical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Mechanical Engineering Oguh, Jeremiah Chika Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| thesis_degree_str | Master's |
| title | Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| title_full | Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| title_fullStr | Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| title_full_unstemmed | Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| title_short | Investigation of the microstructural evolution in Ti-6A1-4V alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| title_sort | investigation of the microstructural evolution in ti 6a1 4v alloy during cyclic hydrogenation and dehydrogenation heat treatment |
| topic | Mechanical Engineering |
| url | http://hdl.handle.net/11427/5495 |
| work_keys_str_mv | AT oguhjeremiahchika investigationofthemicrostructuralevolutioninti6a14valloyduringcyclichydrogenationanddehydrogenationheattreatment |