Cold spraying combined to laser surface pre-treatment using PROTAL®

D. K. Christoulis, S. Guetta, V. Guipont, M. H. Berger, M. Jeandin, M. Boustle, S. Costil, Y. Ichikawa, K. Ogawa, E. Irissou, J. G. Legoux, C. Moreau

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

3 Citations (Scopus)

Abstract

The effect of substrate pre-treatment on Cold Spray coating adhesion was studied. Fine aluminum powder (17-35 μm) was cold-sprayed onto AISI 2017 aluminum-based alloy with different preparations. In addition to as-received substrates, a first series of substrates were prepared by conventional methods: i.e. polishing and grit-blasting. Others were pretreated using a nano-pulsed Nd-YAG laser in the PROTAL® surface cleaning process. In the PROTAL® device the laser head is coupled with the cold spray gun to result in laser irradiation passing just prior to cold spray deposition. To elucidate main interaction mechanisms, coating-substrate interfaces were studied with Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) of thin foils which were prepared using Focused Ion Beam. These mechanisms are discussed in the light of results from LAser Shock Adhesion Test (LASAT) of cold-sprayed coatings. Coating-substrate interface was significantly improved when nano-pulsed laser was applied for substrates pre-treatment, resulting in the formation of high adhesion coatings.

Original languageEnglish
Title of host publicationExpanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009
Pages1151-1156
Number of pages6
DOIs
Publication statusPublished - 2009
EventExpanding Thermal Spray Performance to New Markets and Applications - 2009 International Thermal Spray Conference, ITSC 2009 - Las Vegas, NV, United States
Duration: 2009 May 42009 May 7

Publication series

NameProceedings of the International Thermal Spray Conference

Other

OtherExpanding Thermal Spray Performance to New Markets and Applications - 2009 International Thermal Spray Conference, ITSC 2009
Country/TerritoryUnited States
CityLas Vegas, NV
Period09/5/409/5/7

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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