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dc.contributor.author | Mashigo, L.![]() |
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dc.contributor.author | Moller, Heinrich![]() |
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dc.contributor.author | Gassmann, C.![]() |
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dc.date.accessioned | 2022-05-06T08:18:23Z | |
dc.date.available | 2022-05-06T08:18:23Z | |
dc.date.issued | 2021-07 | |
dc.description | Paper written on project work carried out in partial fulfilment of B.Eng (Metallurgical Engineering) degree | en_US |
dc.description.abstract | Wire-arc additive manufacturing (WAAM) is a directed-energy deposition technology that uses arc welding procedures to produce computer-aided designed parts, such as three-dimensional printed metal components. A challenge of additive manufacturing is the anisotropy. Interstitial elements play a significant role in the mechanical properties of Ti6Al4V of different grades. In this research, the mechanical properties of Grade 5 and Grade 23 Ti6Al4V were compared for this application. Samples were extracted from WAAM-produced Ti6Al4V walls in different directions (horizontal and vertical) and at different positions (top and bottom). The samples were subjected to optical microscopy and tensile and hardness tests. Grade 5 Ti6Al4V samples were found to have greater strength, greater hardness, and lower ductility, owing to the higher content of interstitial elements compared with Grade 23. The bottom samples had higher strength than the top samples, which is attributed to thermal cycling during manufacturing, resulting in different microstructures. | en_US |
dc.description.department | Materials Science and Metallurgical Engineering | en_US |
dc.description.librarian | am2022 | en_US |
dc.description.uri | http://www.saimm.co.za/journal-papers | en_US |
dc.identifier.citation | Mashigo, L., Möller, H., and Gassmann, C. 2021 Comparison of the mechanical properties of Grade 5 and Grade 23 Ti6Al4V for wire-arc additive manufacturing. Journal of the Southern African Insitute of Mining and Metallurgy, vol. 121, no. 7, pp. 325–330 DOI ID: http://dx.DOI.org/10.17159/2411-9717/1498/2021. | en_US |
dc.identifier.issn | 0038-223X (print) | |
dc.identifier.issn | 2225-6253 (online) | |
dc.identifier.other | 10.17159/2411-9717/1498/2021 | |
dc.identifier.uri | https://repository.up.ac.za/handle/2263/85119 | |
dc.language.iso | en | en_US |
dc.publisher | Southern African Institute of Mining and Metallurgy | en_US |
dc.rights | © The Southern African Institute of Mining and Metallurgy, 2021 | en_US |
dc.subject | Ti6Al4V | en_US |
dc.subject | Anisotropy | en_US |
dc.subject | Heat accumulation | en_US |
dc.subject | Interstitial elements | en_US |
dc.subject | Wire-arc additive manufacturing (WAAM) | en_US |
dc.title | Comparison of the mechanical properties of Grade 5 and Grade 23 Ti6Al4V for wire-arc additive manufacturing | en_US |
dc.type | Article | en_US |