Correlations between electrode phenomena and coating properties in wire arc spraying

T. Watanabe, X. Wang, E. Pfender, J. Heberlein

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Electric arc spraying with dual wires is an economical coating process finding diverse applications. Electrode phenomena, such as oxidation and turbulence have strong effects on the droplet formation, therefore on the coating properties. Low turbulence intensity of an atomizing gas flow can be related to higher frequency and smaller amplitude of the arc voltage fluctuations. Nitrogen reduces oxidation and turbulence at the electrode region. A converging-diverging nozzle provides higher gas velocity with less turbulence. These operations lead to coatings with lower oxidation and lower porosity.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalThin Solid Films
Volume316
Issue number1-2
DOIs
Publication statusPublished - Mar 21 1998
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this