Lasers and thermal spray

M. Jeandin, D. Christoulis, F. Borit, M. H. Berger, S. Guetta, G. Rolland, V. Guipont, E. Irissou, J. G. Legoux, C. Moreau, M. Nivard, L. Berthe, M. Boustie, W. Ludwig, K. Sakaguchi, Y. Ichikawa, K. Ogawa, S. Costil

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Basically, thermal spray and laser processing can be considered as half brothers since they show many common features due to the use of a (more or less) high-energy source for both. Their combination can therefore be very fruitful and prominent to achieve coatings, which results in their most recent and advanced applications. In the materials processing development story, the laser will thus have moved from cutting to coating. This keynote presentation focuses on the recently-developed coupling of laser processing to cold spray). In this dual process, a cold spray gun is combined to a laser head in a single device, e.g. on a robot. Series of coating experiments using various laser irradiation conditions, primarily pulse frequency, were carried out for Al-based and Ni-based alloys. Laser pre-treatment of the substrate just prior to cold spray, was shown to be beneficial for adhesion of cold-sprayed coatings. Adhesion improvement was exhibited and studied from LASATesting (LASAT for "LAser Shock Adhesion Test"). Incidentally, through LASAT also, the role of lasers in the development of thermally-sprayed coatings can be considered as major. Results are discussed in the light of a TEM (Transmission Electron Microscope) study of the coating-substrate interface with and without laser pre-treatment.

Original languageEnglish
Title of host publicationTHERMEC 2009
EditorsTara Chandra, Tara Chandra, Tara Chandra, N. Wanderka, N. Wanderka, N. Wanderka, Walter Reimers, Walter Reimers, Walter Reimers, M. Ionescu, M. Ionescu, M. Ionescu
PublisherTrans Tech Publications Ltd
Pages174-181
Number of pages8
ISBN (Print)0878492941, 9780878492947
DOIs
Publication statusPublished - 2010
Event6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
Duration: 2009 Aug 252009 Aug 29

Publication series

NameMaterials Science Forum
Volume638-642
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
Country/TerritoryGermany
CityBerlin
Period09/8/2509/8/29

Keywords

  • Adhesion
  • Al
  • Coating lasat
  • Cold spray
  • Interface
  • Laser
  • Ni
  • Pre-treatment
  • Thermal spray

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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