dc.contributor.author |
Pityana, Sisa L
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dc.contributor.author |
Baloyi, N
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|
dc.contributor.author |
Tlotleng, Monnamme
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dc.contributor.author |
Popoola, P
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dc.date.accessioned |
2019-12-17T07:41:57Z |
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dc.date.available |
2019-12-17T07:41:57Z |
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dc.date.issued |
2019-04 |
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dc.identifier.citation |
Pityana, S.L., Baloyi, N., Tlotleng, M. & Popoola, P. 2019. Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications. Journal of the Southern African Institute of Mining and Metallurgy, vol 119(4), pp. 385-389 |
en_US |
dc.identifier.issn |
2225-6253 |
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dc.identifier.issn |
2411-9717 |
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dc.identifier.uri |
https://www.saimm.co.za/Journal/v119n04p385.pdf
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dc.identifier.uri |
http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2225-62532019000400010
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dc.identifier.uri |
http://dx.doi.org/10.17159/2411-9717/16/211/2019
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dc.identifier.uri |
http://hdl.handle.net/10204/11263
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dc.description |
Copyright: 2019 Southern African Institute of Mining and Metallurgy. |
en_US |
dc.description.abstract |
The advantages of using Nb and Ti-Nb coatings for improving the hardness and corrosion resistance of Ti6Al4V were investigated. It has been reported that Ti6Al4V used in orthopaedic implants tends to release toxic Al and V ions into the surrounding tissue. Thin layers of Nb and Ti-Nb were deposited on Ti6Al4V substrates using a laser metal deposition technique. The deposited material was analysed using optical microscopy, scanning electron microscopy coupled with energy dispersive spectroscopy, and X-ray diffraction. The corrosion behaviour of the deposited layers was investigated using a Metrohm Autolab PG Stat101 compact potentiostat at 25°C in simulated body fluid. A Vickers hardness system was used to study the mechanical properties. Both Nb and Ti-Nb coatings exhibited good metallurgical bonding with the substrate. The microstructure and the XRD analyses for the Nb system showed that the a-Nb phase was most dominant, while the Ti-Nb system comprised a mixture of the a and b phases. The average hardness of the Ti6Al4V substrate was 350 HV(sub0.3), with a slight increase for the Nb coating (363 HV(sub0.3)) and a much higher hardness from the Ti-Nb coating at 423 HV(sub0.3). The corrosion results show that the deposited Nb was more corrosion-resistant in the solution than either the Ti6Al4V substrate or the Ti-Nb coating. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Southern African Institute of Mining and Metallurgy |
en_US |
dc.relation.ispartofseries |
Workflow;22802 |
|
dc.subject |
Corrosion |
en_US |
dc.subject |
Laser surface deposition |
en_US |
dc.subject |
Niobium (Nb) |
en_US |
dc.subject |
Titanium (Ti) |
en_US |
dc.subject |
Titanium-niobium (Ti-Nb) |
en_US |
dc.subject |
Ti6Al4V |
en_US |
dc.title |
Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Pityana, S. L., Baloyi, N., Tlotleng, M., & Popoola, P. (2019). Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications. http://hdl.handle.net/10204/11263 |
en_ZA |
dc.identifier.chicagocitation |
Pityana, Sisa L, N Baloyi, Monnamme Tlotleng, and P Popoola "Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications." (2019) http://hdl.handle.net/10204/11263 |
en_ZA |
dc.identifier.vancouvercitation |
Pityana SL, Baloyi N, Tlotleng M, Popoola P. Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications. 2019; http://hdl.handle.net/10204/11263. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Pityana, Sisa L
AU - Baloyi, N
AU - Tlotleng, Monnamme
AU - Popoola, P
AB - The advantages of using Nb and Ti-Nb coatings for improving the hardness and corrosion resistance of Ti6Al4V were investigated. It has been reported that Ti6Al4V used in orthopaedic implants tends to release toxic Al and V ions into the surrounding tissue. Thin layers of Nb and Ti-Nb were deposited on Ti6Al4V substrates using a laser metal deposition technique. The deposited material was analysed using optical microscopy, scanning electron microscopy coupled with energy dispersive spectroscopy, and X-ray diffraction. The corrosion behaviour of the deposited layers was investigated using a Metrohm Autolab PG Stat101 compact potentiostat at 25°C in simulated body fluid. A Vickers hardness system was used to study the mechanical properties. Both Nb and Ti-Nb coatings exhibited good metallurgical bonding with the substrate. The microstructure and the XRD analyses for the Nb system showed that the a-Nb phase was most dominant, while the Ti-Nb system comprised a mixture of the a and b phases. The average hardness of the Ti6Al4V substrate was 350 HV(sub0.3), with a slight increase for the Nb coating (363 HV(sub0.3)) and a much higher hardness from the Ti-Nb coating at 423 HV(sub0.3). The corrosion results show that the deposited Nb was more corrosion-resistant in the solution than either the Ti6Al4V substrate or the Ti-Nb coating.
DA - 2019-04
DB - ResearchSpace
DO - 10.17159/2411-9717/16/211/2019
DP - CSIR
KW - Corrosion
KW - Laser surface deposition
KW - Niobium (Nb)
KW - Titanium (Ti)
KW - Titanium-niobium (Ti-Nb)
KW - Ti6Al4V
LK - https://researchspace.csir.co.za
PY - 2019
SM - 2225-6253
SM - 2411-9717
T1 - Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications
TI - Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications
UR - http://hdl.handle.net/10204/11263
ER -
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en_ZA |