Correlations between electrode phenomena and coating properties in wire arc spraying

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

doi:10.1016/S0040-6090(98)00409-X

Correlations between electrode phenomena and coating properties in wire arc spraying

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

Research output: Contribution to journal › Article › peer-review

33 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 language	English
Pages (from-to)	169-173
Number of pages	5
Journal	Thin Solid Films
Volume	316
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(98)00409-X
Publication status	Published - Mar 21 1998
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/S0040-6090(98)00409-X

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AU - Watanabe, T.

AU - Wang, X.

AU - Pfender, E.

AU - Heberlein, J.

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Y1 - 1998/3/21

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AB - 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.

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Correlations between electrode phenomena and coating properties in wire arc spraying

Abstract

All Science Journal Classification (ASJC) codes

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