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Journal of Thermal Spray Technology

, Volume 28, Issue 1–2, pp 233–241 | Cite as

Internal Diameter Coating Processes for Bond Coat (HVOF) and Thermal Barrier Coating (APS) Systems

  • W. Tillmann
  • C. SchaakEmail author
  • L. Hagen
  • G. Mauer
  • G. Matthäus
Peer Reviewed
  • 113 Downloads

Abstract

Current developments in different industrial sectors show an increasing demand of thermally sprayed internal diameter (ID) coatings. The most recent research and development is mainly focused on commercial applications such as arc spraying (AS), atmospheric plasma spraying (APS), and plasma transferred wire arc spraying, especially for cylinder liner surfaces. However, efficient HVOF torches are meanwhile available for ID applications as well, but in this field, there is still a lack of scientific research. Especially, the compact design of HVOF-ID and APS-ID spray guns, the need of finer powders, and the internal spray situation leads to new process effects and challenges, which have to be understood in order to achieve high-quality coating properties comparable to outer diameter coatings. Thus, in the present work, the focus is on the ID spraying of bond coats (BC) and thermal barrier coatings (TBC) for high-temperature applications. An HVOF-ID gun with a N2 injection was used to spray dense BCs (MCrAlY) coatings. The TBCs (YSZ) were sprayed by utilizing an APS-ID torch. Initially, flat steel samples were used as substrates. The morphology and properties of the sprayed ID coating systems were investigated with respect to the combination of different HVOF and APS spray parameter sets. The results of the conducted experiments show that the HVOF-ID spray process with N2 injection allows to adjust the particle temperatures and speeds within a wide range. CoNiCrAlY bond coats with a porosity from 3.09 to 3.92% were produced. The spray distance was set to 53 mm, which leads to a smallest coatable ID of 133 mm. The porosity of the TBC ranged from 7.2 to 7.3%. The spray distance for the APS-ID process was set to 70 mm, which leads to a smallest coatable ID of 118 mm.

Keywords

bond coat HVOF internal diameter particle speed particle temperature TBC 

References

  1. 1.
    A. Ghabchi, A. Thompson, and M. Froning, Off-Angle Thermal Spray Coating Deposition: Enabling Approach to Coat Small Internal Diameters, Boeing Co Briefing Charts, St Louis, 2012Google Scholar
  2. 2.
    U. Selvadurai, P. Hollingsworth, I. Baumann, B. Hussong, W. Tillmann, S. Rausch, and D. Biermann, Influence of the Handling Parameters on Residual Stresses of HVOF-Sprayed WC-12Co Coatings, Surf. Coat. Technol., 2015, 268, p 30-35CrossRefGoogle Scholar
  3. 3.
    Š. Houdková, F. Zahálka, and M. Kašparová, The Influence of the Spraying Angle on Properties of Thermally Sprayed HVOF Cermet Coatings, Surf. Effects Contact Mech. IX, 2009, 62, p 59-69Google Scholar
  4. 4.
    G. Matthäus, K. Bobzin, E. Lugscheider, and J. Zwick, Coating Properties of HVOF Sprayed Carbide-Based Ultrafine Powders, in Thermal Spray 2006: Science, Innovation, and Application, 2006, pp. 673-678Google Scholar
  5. 5.
    B. Krauß, Trend: Beschichtete zylinderlaufbahnen, VDI-Z Integrierte Produktion, Jun 2015.Google Scholar
  6. 6.
    C. Lima and J.M. Guilemany, Adhesion Improvements of Thermal Barrier Coatings with HVOF Thermally Sprayed Bond Coats, Surf. Coat. Technol., 2007, 201(8), p 4694-4701CrossRefGoogle Scholar
  7. 7.
    B. Rajasekaran, G. Mauer, and R. Vaßen, Enhanced Characteristics of HVOF-Sprayed MCrAlY Bond Coats for TBC Applications, J. Therm. Spray Technol., 2011, 20(6), p 1209-1216CrossRefGoogle Scholar
  8. 8.
    S.-W. Myoung, Z. Lu, Y.-G. Jung, B.-K. Jang, and U. Paik, Control of bond coat microstructure in HVOF process for thermal barrier coatings, in The 41st International Conference on Metallurgical Coatings and Thin Films, vol. 260(Supplement C), (2014), pp. 63-67.Google Scholar
  9. 9.
    H.-J. Jang, D.-H. Park, Y.-G. Jung, J.-C. Jang, S.-C. Choi, and U. Paik, Mechanical Characterization and Thermal Behavior of HVOF-Sprayed Bond Coat in Thermal Barrier Coatings (TBCs), Surf. Coat. Technol., 2006, 200(14), p 4355-4362CrossRefGoogle Scholar
  10. 10.
    W.R. Chen, Degradation of a TBC with HVOF-CoNiCrAlY Bond Coat, J. Therm. Spray Technol., 2014, 23(5), p 876-884CrossRefGoogle Scholar
  11. 11.
    W.R. Chen, X. Wu, B.R. Marple, D.R. Nagy, and P.C. Patnaik, TGO Growth Behaviour in TBCs with APS and HVOF Bond Coats, Surf. Coat. Technol., 2008, 202(12), p 2677-2683CrossRefGoogle Scholar
  12. 12.
    Metallizing Equipment Co. PVT. LTD: MEC introduce gun for applying hard coating in internal dia. & difficult to reach at area. MJP 6000. DOC# MEC/MJP/-6000/2013.Google Scholar
  13. 13.
    J. Gutleber, R. Molz, J. He, C. Weber, and J. Colmenares, New developments in HVOF spraying for internal diameter coatings: Proceedings Internation, in Thermal Spray Conference, 2017, pp. 501-504.Google Scholar
  14. 14.
    A. Burgess, Novel HVOF torch for spraying internal diameters. Spraywerx Technologies, Inc., Canada, in Proceedings International Thermal Spraying Conference (ITSC), Düsseldorf, Germany, 2017, pp. 346-353.Google Scholar
  15. 15.
    Thermico GmbH & Co. Kg: Innenbeschichtungen mit einem rotierenden. Brenner. http://thermico.de/DE/produkte/anlagentechnik/brennertechnik/rmtu.html. 02 Oct 2018.
  16. 16.
    F.E. Marble, Dynamics of a gas containing small solid particles, in Combustion and Propulsion (5th AGARDograph Colloquium). Pergamon Press, New York, 1963, pp. 175-213. http://resolver.caltech.edu/CaltechAUTHORS:20110208-103139308
  17. 17.
    J. Pattison, S. Celotto, A. Khan, and W. O’Neill, Standoff Distance and Bow Shock Phenomena in the Cold Spray Process, Surf. Coat. Technol., 2008, 202(8), p 1443-1454CrossRefGoogle Scholar
  18. 18.
    A. Léger, J. Wigren, and H. Hansson, Development of a Process Window for a NiCoCrAlY Plasma-Sprayed Coating, Surf. Coat. Technol., 1998, 108-109(Supplement C), p 86-92CrossRefGoogle Scholar
  19. 19.
    M. Friis, C. Persson, and J. Wigren, Influence of Particle In-Flight Characteristics on the Microstructure of Atmospheric Plasma Sprayed Yttria Stabilized ZrO2, Surf. Coat. Technol., 2001, 141(2), p 115-127CrossRefGoogle Scholar
  20. 20.
    S. Kuroda, J. Kawakita, M. Watanabe, and H. Katanoda, Warm Spraying—A Novel Coating Process Based on High-Velocity Impact of Solid Particles, Sci. Technol. Adv. Mater., 2008, 9(3), p 33002CrossRefGoogle Scholar
  21. 21.
    H. Haindl, Einfluß der Fertigungsparameter der Haftschicht auf die Lebensdauer keramischer Wärmedämmschichtsysteme, Herbert Utz Verlag Wissenschaft, Munich, 1998, ISBN 3-89675-313-4Google Scholar
  22. 22.
    G. Mauer et al., Comparison and Applications of DPV-2000 and Accuraspray-g3 Diagnostic Systems, J. Therm. Spray Technol., 2007, 16(3), p 414-424CrossRefGoogle Scholar
  23. 23.
    A. Moridi, M. Hassani-Gangaraj, M. Guagliano, and M. Dao, Cold Spray Coating: Review of Material Systems and Future Perspectives, Surf. Eng., 2014, 30, p 369-395CrossRefGoogle Scholar
  24. 24.
    W.R. Chen, E. Irissou, X. Wu, J.-G. Legoux, and B. Marple, The Oxidation Behavior of TBC with Cold Spray CoNiCrAlY Bond Coat, J. Therm. Spray Technol., 2011, 20(1), p 132-138CrossRefGoogle Scholar
  25. 25.
    P. Richer, M. Yandouzi, L. Beauvais, and B. Jodoin, Oxidation Behaviour of CoNiCrAlY Bond Coats Produced by Plasma, HVOF and Cold Gas Dynamic Spraying, Surface Coat. Technol., 2010, 204(24), p 3962-3974CrossRefGoogle Scholar
  26. 26.
    S. Osawa, T. Itsukaichi, and R. Ahmed, Influence of powder size and strength on HVOF spraying—mapping the onset of spitting. Paper Presented at Advancing the Science and Applying the Technology, International Thermal Spray Conference, Florida, United States, 2003, pp. 819-824.Google Scholar
  27. 27.
    G.M. Ingo, Origin of Darkening in 8 wt% Yttria—Zirconia Plasma-Sprayed Thermal Barrier Coatings, J. Am. Ceram. Soc., 1991, 74(2), p 381-386CrossRefGoogle Scholar
  28. 28.
    E. Bakan and R. Vaßen, Ceramic Top Coats of Plasma-Sprayed Thermal Barrier Coatings: Materials, Processes, and Properties, J. Therm. Spray Technol., 2017, 26(6), p 992-1010CrossRefGoogle Scholar
  29. 29.
    A. Gil, V. Shemet et al., Effect of Surface Condition on the Oxidation Behaviour of MCrAlY Coatings, Surf. Coat. Technol., 2006, 201(7), p 3824-3828CrossRefGoogle Scholar

Copyright information

© ASM International 2018

Authors and Affiliations

  • W. Tillmann
    • 1
  • C. Schaak
    • 1
    Email author
  • L. Hagen
    • 1
  • G. Mauer
    • 2
  • G. Matthäus
    • 3
  1. 1.Institute of Materials EngineeringTU Dortmund UniversityDortmundGermany
  2. 2.Institute of Energy and Climate Research, IEK-1Forschungszentrum Jülich GmbHJülichGermany
  3. 3.Thermico GmbH & Co KGDortmundGermany

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