Soviet Powder Metallurgy and Metal Ceramics

, Volume 22, Issue 11, pp 904–909 | Cite as

Cleaning the basis metal of surface films in the spray-deposition of powders

  • Yu. A. Kharlamov
Powder Metallurgical Materials, Parts, and Coatings


In gasothermic spray-deposition the surface of the basis material experiences self-cleaning as a result of the disintegration of surface films by frictional forces set up by the spreading layer of particles and their subsequent removal to the periphery of the contact zone. The intensity of self-cleaning of the surface of a basis material grows with increasing velocity of the particles being deposited. The self-cleaning phenomenon occurring on the basis material in the zone of collision with particles being deposited facilitates the formation of physical contact with the powder particles subsequently interacting with this zone on the surface of the basis material.


Basis Metal Basis Material Surface Film Contact Zone Powder Particle 
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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • Yu. A. Kharlamov
    • 1
  1. 1.Voroshilovgrad Machine Construction InstituteUSSR

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