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Effect of Substrate Preheating, Roughness and Particles Size on Splat Morphology of Thermal Sprayed Coatings

Year 2015, , 16 - 18, 26.09.2015
https://doi.org/10.22399/ijcesen.194367

Abstract

In thermal spraying process, a commercial powder is heated and accelerated simultaneously using a heat source and deposited in a molten or semi-molten condition on a prepared substrate. Coating quality highly depends on some important surface parameters such as the thermo-chemical and physical properties of both powder and substrate, the surface state, the preheated temperature, and the existence of oxidation. In pratice, it is commonly accepted that pre-heating the substrate, prior a  thermal spray operation,  have a great benefits to increase adhesion. However, this method is not routinely used. In this work, the preheating effect of XC18 steel substrates on the flattening behavior of two commercially available flame-sprayed powders was investigated in a temperature range from ambiant to 500 °C.  The conventional flame spray gun was used to accelerate molten particles and Infra-red pyrometer was used to monitor the substrate temperature during a preheating process. Tthe coatings cross section microstructure and elements distribution was performed using SEM with EDS and optical microscope.

References

  • L. Pawlowski, in "Dépôts Physiques" in Presse Polytechniques et Universitaire Romandes Ed., 2003.
  • A. S. H. Moita and A. L. N. Moreira, 2002, 18th Annual Conference on Liquid Atomization & Spray Systems, ILASS Europe, Zaragoza 9-11 septembre.
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(IJCESEN)

Year 2015, , 16 - 18, 26.09.2015
https://doi.org/10.22399/ijcesen.194367

Abstract

References

  • L. Pawlowski, in "Dépôts Physiques" in Presse Polytechniques et Universitaire Romandes Ed., 2003.
  • A. S. H. Moita and A. L. N. Moreira, 2002, 18th Annual Conference on Liquid Atomization & Spray Systems, ILASS Europe, Zaragoza 9-11 septembre.
  • A. Vardelle, M. Vardelle, P. Fauchais, Pure & Applied Chemicals, 1992, Vol. 64, n° 5, pp 637- 644.I. Akkurt, private communication, 2014.
  • L. Bianchi, A.C. Leger, M. Vardelle, A. Vardelle, P. Fauchais, Thin Solid Films 305 (1997) pp 35-47.
  • M.F. Morks, Y. Tsunekawa, M. Okumiya, and M.A. Shoeib, Journal of Thermal Spray Technology, June 2002, Vol. 11, Issue 2, pp 226-232.
  • M. Fukumoto, H. Nagai, and T. Yasui, Journal of Thermal Spray Technology, Dec. 2006, Vol. 15, Issue 4, pp 759-764.
  • M. Fukumoto and Y. Huang, Journal of Thermal Spray Technology, Sept. 1999, Vol. 8, Issue 3, pp 427-432.
There are 7 citations in total.

Details

Primary Language English
Journal Section Research Articles
Authors

Djeghdjough Mohamed This is me

Bacha Eddıne This is me

Dilmi Nacer This is me

Publication Date September 26, 2015
Submission Date September 26, 2015
Published in Issue Year 2015

Cite

APA Mohamed, D., Eddıne, B., & Nacer, D. (2015). Effect of Substrate Preheating, Roughness and Particles Size on Splat Morphology of Thermal Sprayed Coatings. International Journal of Computational and Experimental Science and Engineering, 1(1), 16-18. https://doi.org/10.22399/ijcesen.194367