Microstructure and phase composition of titanium coatings plasma sprayed with a shroud

Zhou, Hong (2018) Microstructure and phase composition of titanium coatings plasma sprayed with a shroud. International Conference on Materials Applications and Engineering 2017 (ICMAE2017), Qingdao, China , 25 - 27 Aug 2017.

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Abstract or Summary

Excellent corrosion resistance has made titanium a preferred material for use in industry with harsh environments. Protective titanium coatings combined with cheap bulk materials are expected to enable sufficient corrosion protection and lower the cost. Plasma spray processing of titanium feedstock becomes a challenging topic of research as titanium powder particles have to experience high temperatures in the flight during the thermal spraying process in an open air environment. In this paper, plasma spraying of titanium has been carried out by using a shroud in order to shield molten particles from reacting with surrounding environment. Microstructural analyses on the titanium coatings were performed by using SEM, EDS and XRD. The results show that the shroud attachment is capable of withstanding high plasma temperatures; the as-sprayed shrouded titanium coating exhibits a similar phase composition as the pure titanium powder, and an enhanced microstructure with a lower porosity for the titanium coating plasma-sprayed with a shrouding system is observed.

Item Type:Paper presented at a conference, workshop or other event, and published in the proceedings
Keywords that describe the item:Titanium coatings, Shroud, plasma spray, microstructure
Subjects:T Technology > T Technology (General)
Divisions:Schools > Centre for Engineering and Industrial Design
ID Code:5820
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Deposited On:01 Mar 2018 03:26
Last Modified:18 Dec 2018 07:40

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