Near fully dense tungsten coatings onto molybdenum substrates have been demonstrated using the Supersonic Laser Deposition (SLD) process. This is a characteristic that is not readily achievable with refractory materials. The tensile strength of the tungsten deposited coatings is similar to that of wrought tungsten, with no evidence of melting or substrate grain growth. The tungsten coating to a molybdenum substrate shows no evidence of melting or substrate grain growth. The SLD process is a novel deposition method that is based upon Cold Spay (CS) principles. In this technique the deposition velocities can be significantly lower than those required for effective bonding in CS processing. The addition of laser heating alters the mechanical properties of the materials at the deposition site. The results have shown that SLD is able to deposit tungsten with unique interface bonding and desirable properties as opposed to other deposition processes for refractory materials.
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ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
June 9–13, 2014
Detroit, Michigan, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-4580-6
PROCEEDINGS PAPER
Supersonic Laser Deposition of Tungsten
Marshall Jones,
Marshall Jones
GE Global Research, Niskayuna, NY
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Andrew Cockburn,
Andrew Cockburn
University of Cambridge, Cambridge, UK
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Martin Sparkes,
Martin Sparkes
University of Cambridge, Cambridge, UK
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William O’Niell,
William O’Niell
University of Cambridge, Cambridge, UK
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Rocco Lupoi
Rocco Lupoi
Trinity College Dublin, Dublin, Ireland
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Marshall Jones
GE Global Research, Niskayuna, NY
Andrew Cockburn
University of Cambridge, Cambridge, UK
Martin Sparkes
University of Cambridge, Cambridge, UK
William O’Niell
University of Cambridge, Cambridge, UK
Rocco Lupoi
Trinity College Dublin, Dublin, Ireland
Paper No:
MSEC2014-4187, V001T03A022; 4 pages
Published Online:
October 3, 2014
Citation
Jones, M, Cockburn, A, Sparkes, M, O’Niell, W, & Lupoi, R. "Supersonic Laser Deposition of Tungsten." Proceedings of the ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. Volume 1: Materials; Micro and Nano Technologies; Properties, Applications and Systems; Sustainable Manufacturing. Detroit, Michigan, USA. June 9–13, 2014. V001T03A022. ASME. https://doi.org/10.1115/MSEC2014-4187
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