- Title
- Induction Heating as an alternative Localised Post Weld Heat Treatment for Friction Taper Hydro-Pillar Welds on thick-walled steam pipes
- Creator
- De Klerk, Julien Vincent
- Subject
- Welding
- Subject
- Friction welding
- Date Issued
- 2022-04
- Date
- 2022-04
- Type
- Master's theses
- Type
- text
- Identifier
- http://hdl.handle.net/10948/58329
- Identifier
- vital:58984
- Description
- Welding procedures regularly require a Post Weld Heat Treatment (PWHT) after the completion of a weld. This PWHT process is principally to mitigate unwanted effects of the welding process which may negatively influence the functional performance of the welded structure. Amongst the unwanted effects that may arise due to welding is the development of unintended metallurgical and mechanical properties. This includes the creation of an un-tempered martensitic structure due to the rapid cooling of the weld region from temperatures above the material’s critical temperature. This typically results in weld regions with high tensile strength and high hardness, but also characterised by low ductility and reduced toughness. In order to improve ductility and toughness a PWHT cycle is often completed on the welded structure.
- Description
- Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (171 pages)
- Format
- Publisher
- Nelson Mandela University
- Publisher
- Faculty of Engineering, the Built Environment, and Technology
- Language
- English
- Rights
- Nelson Mandela University
- Rights
- All Rights Reserved
- Rights
- Open Access
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| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | de Klerk, J.pdf | 29 MB | Adobe Acrobat PDF | View Details Download |