In situ monitoring of particle consolidation during low pressure cold spray by ultrasonic techniques

R. Gr Maev, S. Titov, V. Leshchynsky, D. Dzhurinskiy, M. Lubrick

Research output: Contribution to journalReview articlepeer-review

8 Citations (Scopus)

Abstract

This study attempts to test the viability of the examination of the cold spray process using acoustic methods, specifically in situ testing during the actual spray process itself. Multiple composites studied by flat and multi-channel transducers as well as the results of actual online measurements are presented. It is shown that the final thickness as well as the dynamics of buildup can be evaluated (including plotting rates of buildup). Cross sections of the coating thickness are also easy to obtain and show true profiles of the coating. The data can also be used to generate real estimates for nozzle speed and spray diameter. Finally, comparisons of real thickness and acoustically estimated thickness show a close linear relationship. The data clearly show that online acoustic measurement is a viable method for estimating thickness buildup.

Original languageEnglish
Pages (from-to)845-851
Number of pages7
JournalJournal of Thermal Spray Technology
Volume20
Issue number4
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

Keywords

  • build-up process
  • coating
  • cold spray
  • monitoring
  • ultrasonic pulse-echo method

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