Abstract
In state-of-the-art manufacturing of sliding bearings, brass components are soldered to respective parts, which is costly and energy intensive. Most bearings contained lead, which has to be omitted due to associated health risks. Cold spraying can be employed as additive manufacturing technique and allows to deposit the requested bearings in desired lead-free layout where needed. Aside from the coating strength and tribological behavior to be met as bearing material, sufficient adhesion of the coating is essential for applications. The present study aims to systematically elucidate the influence of surface roughness on adhesion. The surface roughness was adjusted by varying the grit blasting material, grit size, blast pressure, blast distance and substrate material with the aim to study influences from grit impact conditions, surface topography on particle deformation and bonding in cold spraying. Through systematic tuning of blasting conditions, coating adhesion can be increased by approximately a factor of two, thus meeting the requirements for new lead-free bearings. For reference, nickel bond coats were investigated as alternative method to optimize the adhesion of cold-sprayed brass coatings. The results showed that the respective adhesion strength can exceed the optimized maximum adhesion strength by ideal surface roughness.
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References
KMU-innovativ – Innovationen für die Produktion von morgen, Projektportraits der 15. Auswahlrunde mit Laufzeit 2015–2017, http://www.bmbf.de/pub/KMU_inoovativ_15._Runde.pdf. Accessed 24 Jan 18
Environment Pollutant Report 2015, Green Cross and Pure Earth (2015)
Directive 2011/65/EU of the European Parliament and of the Council (2011)
A.P. Alkimov, V.F. Kosarev, N.I. Nesterovich, and A.N. Papyrin, Method of applying coatings, Russian Patent 1,618,778
T. Stoltenhoff, C. Borchers, F. Gärtner, and H. Kreye, Microstructures and Key Properties of Cold-Sprayed and Thermally Sprayed Copper Coatings, Surf. Coat. Technol., 2006, 200, p 4947-4960
R.C. Dykhuizen, M.F. Smith, D.L. Gilmore, R.A. Neiser, X. Jiang, and Sampath, Impact of High Velocity Cold Spray Particles, J. Therm. Spray Technol., 1999, 8, p 559-564
H. Assadi, T. Schmidt, H. Richter, J.O. Kliemann, K. Binder, F. Gärtner, T. Klassen, and H. Kreye, On Parameter Selection in Cold Spraying, J. Therm. Spray Technol., 2011, 20, p 1161-1176
H. Assadi, F. Gärtner, T. Stoltenhoff, and H. Kreye, Bonding Mechanism in Cold Gas Spraying, Acta Mater., 2003, 51, p 4379-4394
T. Schmidt, H. Assadi, F. Gärtner, H. Richter, T. Stoltenhoff, H. Kreye, and T. Klassen, From Particle Acceleration to Impact and Bonding in Cold Spraying, J. Therm. Spray Technol., 2009, 18, p 794-808
T. Schmidt, F. Gärtner, H. Assadi, and H. Kreye, Development of a Generalized Parameter Window for Cold Spray Deposition, Acta Mater., 2006, 54, p 729-742
H. Assadi, H. Kreye, F. Gärtner, and T. Klassen, Cold Spraying: A Material Perspective, Acta Mater., 2016, 116, p 382-407
F. Gärtner, T. Stoltenhoff, T. Schmidt, and H. Kreye, The Cold Spray Process and Its Potential for Industrial Applications, J. Therm. Spray Technol., 2006, 15, p 223-232
T. Klassen, F. Gärtner, H. Assadi, M. Villa-Vidaller, K. Binder, K. Onizawa, A. List, K.-R. Ernst, and S. Krebs, H. Gutzmann, Kinetisches Spritzen zur Funktionalisierung von Oberflächen und für die generative Bauteilfertigung, in Proceedings 33rd Hagener Symposium in der Pulvermetallurgie, Hagen, GER Nov 2014, pp. 97-116
Z. Arabgol, M. Villa-Vidaller, H. Assadi, F. Gärtner, and T. Klassen, Influence of Thermal Properties and Temperature of Substrate on the Quality of Cold-Sprayed Deposits, Acta Mater., 2017, 65, p 287-301
J.G. Legoux, E. Irissou, and C. Moreau, Effect of Substrate Temperature of the Formation Mechanism of Cold-Sprayed Aluminium, Zinc and Tin Coating, J. Therm. Spray Technol., 2007, 16, p 619-626
M. Fukumoto, H. Wada, K. Tanabe, M. Yamada, E. Yamaguchi, A. Niwa, Sugimoto, and M. Izawa, Effect of Substrate Temperature on Deposition Behavior of Copper Particles on Substrate Surfaces in Cold Spray Process, Journal Thermal Spray Technology, 2007, 16, p 643-650
S. Theimer, P. Brethack, F. Gärtner, and T. Klassen, Cold gas spraying of lead-free bearing bronzes, in Proceedings ITSC, Düsseldorf, GER, June 2017, pp. 208-213.
A. Momber, Blasting Cleaning Technology, Springer, Berlin, 2008, p 7-13
S. Yin, Y. Xie, X. Suo, H. Liao, and X. Wang, Interfacial Bonding Features of Ni Coating on Al Substrate with Different Surface Pretreatments in Cold Spray, Mater. Lett., 2015, 138, p 143-147
T. Hussain, D.G. McCartney, P.H. Shipway, and D. Zhang, Bonding Mechanisms in Cold Spraying: The Contributions of Metallurgical and Mechanical Components, J. Therm. Spray Technol., 2009, 18(3), p 364-379
C. Chen, Y. Xie, X. Xie, S. Deng, H. Liao, R. Huang, and Z. Ren, Investigation of particle/substrate bonding between copper powder and different substrate in cold spray, in Proceedings ITSC, Orlando, May 2018, pp. 262-269
R.C. Tucker, ASM Handbook, Volume 5A: Thermal Spray Technology, Chapter 2, ASM international, Materials Park, 2013, p 31-90
C. Borchers, F. Gärtner, T. Stoltenhoff, H. Assadi, and H. Kreye, Microstructural and Macroscopic Properties of Cold Sprayed Copper Coatings, J. Appl. Phys., 2003, 93, p 10064-10070
T. Klassen, F. Gärtner, and H. Assadi, Process Science of Cold Spray Chapter 2: High Pressure Cold Spray—Principles and Applications, ASM International, Materials Park, 2016, p 17-65
K. Bobzin, M. Öte, T.F. Linke, J. Sommer, and X. Liao, Influence of Process Parameter on Grit Blasting as a Pretreatment Process for Thermal Spraying, J. Therm. Spray Technol., 2016, 25, p 3-8
Q. Blochet, F. Delloro, F. N’Guyen, D. Jeulin, F. Borit, and M. Jeandin, Effect of the Cold-Sprayed Aluminium Coating-Substrate Interface Morphology on Bond Strength for Aircraft Repair Application, J. Therm. Spray Technol., 2017, 26, p 671-686
H. Begg, M. Riley, and H. De Villiers Lovelock, Mechanization of The Grit Blasting Process for Thermal Spray Coating Applications: A Parameter Study, J. Therm. Spray Technol., 2016, 25, p 12-20
S. Theimer, M. Graunitz, F. Gärtner, and T. Klassen, Adhesion of cold sprayed brass coatings for lead-free bearings, in Proceedings ITSC, Orlando, May 2018, pp. 568-573.
C.R.C. Lima and J.M. Guilemany, Adhesion Improvements of Thermal Barrier Coatings with HVOF Thermally Sprayed Bond Coats, Surf. Coat. Technol., 2007, 201, p 4694-4701
P.L. Fauchais, J.V.R. Heberlein, and M.I. Boulos, Thermal Spray Fundamentals—From Powder to Part, Springer, New York, 2014, p 356-368
L. Pawlowski, The Science and Engineering of Thermal Spray Coatings, Wiley, Hoboken, 1995, p 403-411
M. Homann and N. Ludwig, Equipment for the manufacture of powders of metals, German Patent DE 4102 101 A1.
DIN EN ISO 4287:2010-07 Geometrical Product Specifications (GPS)—Surface texture: Profile method—Terms, definitions and surface texture parameters (ISO 4287:1997); German version EN ISO 4287:1998).
I.M. Hutchings, Tribology—Friction and Wear of Engineering Materials, CRC Press, London, 1992, p 171-178
D.A. Hays, Role of Electrostatics in Adhesion Chapter 8: Fundamentals of Adhesion, Springer, Boston, 1991, p 249-278
F.R. De Boer, R. Boom, W.C.M. Mattens, A.R. Miedema, and A.K. Niessen, Cohesion in Metals—Transition Metal Alloys, North Holland, Amsterdam, 1988, p 260
Z. Arabgol, H. Assadi, T. Schmidt, F. Gärtner, and T. Klassen, Analysis of Thermal History and Residual Stress in Cold-Sprayed Coatings, J. Therm. Spray Technol., 2014, 23, p 84-90
W. Li, K. Yang, D. Zhang, and X. Zhou, Residual Stress Analysis Of Cold-Sprayed Copper Coatings by Numerical Simulation, J. Therm. Spray Technol., 2016, 25, p 131-142
Acknowledgments
This research and development project is funded by the German Federal Ministry of Education and Research (BMBF) within the “SME—Innovative: Research for Production” program (Funding Number 02P14K560 – 4) and managed by the Project Management Agency Karlsruhe (PTKA), which is greatly acknowledged. The authors like to thank in alphabetical order Thomas Breckwoldt, Camilla Schulze, Matthias Schulze, Sabine Stein and Uwe Wagener for technical support, as well as Hamid Assadi, Alexander List and Maria Villa Vidaller for fruitful discussions concerning the work of this study. The author also thanks Kerstin Ernst from Putzier Oberflächentechnik GmbH for the supply of HVOF-sprayed nickel specimens and supporting information.
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Theimer, S., Graunitz, M., Schulze, M. et al. Optimization Adhesion in Cold Spraying onto Hard Substrates: A Case Study for Brass Coatings. J Therm Spray Tech 28, 124–134 (2019). https://doi.org/10.1007/s11666-018-0821-0
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DOI: https://doi.org/10.1007/s11666-018-0821-0