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Microstructural and property assessment of creep aged 12cr steel after welding
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Centre for Materials Engineering
2014
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| _version_ | 1867613267174621184 |
|---|---|
| access_status_str | Open Access |
| author | Molokwane, Teboho Jacob |
| author2 | Sonderegger, B |
| author_browse | Molokwane, Teboho Jacob Sonderegger, B |
| author_facet | Sonderegger, B Molokwane, Teboho Jacob |
| author_sort | Molokwane, Teboho Jacob |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/8678 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:25.185Z |
| 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 | Centre for Materials Engineering |
| publisherStr | Centre for Materials Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/8678 Microstructural and property assessment of creep aged 12cr steel after welding Molokwane, Teboho Jacob Sonderegger, B Knutsen, Robert D Includes bibliographical references. The electricity public utility of Eskom (South Africa) has an ageing fleet of power generation equipment and due to shortage of capacity there is limited time for maintenance and replacements. Complete main steam pipework replacements are not practical and in many instances selective welding must be done on creep aged and sometimes creep damaged material. The question arises whether these repair welds damage the components to an unacceptable degree or not, and a complete replacement can be avoided. This work aims at studying the effect of the welding process on the damage state of the material on the example of the widely used X20 steel and advising Eskom on the weldability limits of this steel. Real welds consisting of new and creep aged steel were prepared and characterised. Furthermore, the heat input was simulated in additional samples using Gleeble thermomechanical equipment. 2014-10-21T13:38:20Z 2014-10-21T13:38:20Z 2013 Master Thesis Masters MSc http://hdl.handle.net/11427/8678 eng application/pdf Centre for Materials Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Molokwane, Teboho Jacob Microstructural and property assessment of creep aged 12cr steel after welding |
| thesis_degree_str | Master's |
| title | Microstructural and property assessment of creep aged 12cr steel after welding |
| title_full | Microstructural and property assessment of creep aged 12cr steel after welding |
| title_fullStr | Microstructural and property assessment of creep aged 12cr steel after welding |
| title_full_unstemmed | Microstructural and property assessment of creep aged 12cr steel after welding |
| title_short | Microstructural and property assessment of creep aged 12cr steel after welding |
| title_sort | microstructural and property assessment of creep aged 12cr steel after welding |
| url | http://hdl.handle.net/11427/8678 |
| work_keys_str_mv | AT molokwanetebohojacob microstructuralandpropertyassessmentofcreepaged12crsteelafterwelding |