High speed titanium coatings by supersonic laser deposition

The importance of metal coating technologies drives the continuous improvement of metal deposition techniques for application in a wide range of industrial sectors. This work presents the foundations of a new process technology for the deposition of titanium coatings on steel tube substrates using s...

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Bibliographic Details
Published in:Materials letters 2011-11, Vol.65 (21), p.3205-3207
Main Authors: Lupoi, R., Sparkes, M., Cockburn, A., O'Neill, W.
Format: Article
Language:English
Subjects:
CFD
Coatings
Cold Spray
Deposition
heat
High speed
Laser deposition
Lasers
melting point
processing technology
SLD
steel
Streams
Titanium
Titanium coatings
Tubes
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Summary:The importance of metal coating technologies drives the continuous improvement of metal deposition techniques for application in a wide range of industrial sectors. This work presents the foundations of a new process technology for the deposition of titanium coatings on steel tube substrates using supersonic powder streams and impact site laser heating, known as Supersonic Laser Deposition (SLD). Metallic deposits are obtained under appropriate impact conditions without the need for exceeding the melting point of the deposited material or substrate leading to improved coating quality. Details of the experimental approach are presented along with the general characteristics of the titanium coating produced using this novel coatings method. ► CFD modelling of cold spray nozzles. ► Cold Spray (CS) and Supersonic Laser Deposition (SLD). ► Titanium coatings on tubes. ► Coatings cross-section visualisation and bond strength.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2011.07.014