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HomeSolid State PhenomenaSolid State Phenomena Vol. 245Duty Cycle of the Polarizing Signal Influence on...

Duty Cycle of the Polarizing Signal Influence on Morphology and Properties of the PEO-Coating on Aluminium Alloy

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Abstract:

Influence of the polarizing signal parameter used during plasma electrolytic oxidation (PEO) on the composition, morphology and properties of protective coatings formed on aluminum alloy in tartrate-containing electrolyte has been presented. It was established, that using of the short-pulse bipolar polarizing signal (τ=5 μs) facilitates the reduction of porosity and roughness of the formed PEO-layers. This, in turn, increases wearproof and protective corrosion characteristics of the treated alloy surface. Increasing the duty cycle (D) affects on the chemical composition and the thickness of the obtained coatings.

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Physics and Technology of Nanostructured Materials III

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Periodical:

Solid State Phenomena (Volume 245)

Pages:

121-129

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.245.121

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Online since:

October 2015

Authors:

Vladimir S. Egorkin, Igor E. Vyaliy*, Sergey L. Sinebryukhov, Sergey V. Gnedenkov

Keywords:

Aluminium, Duty Cycle, Electrochemical Impedance Spectroscopy, Plasma Electrolytic Oxidation, Protective Coatings

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* - Corresponding Author

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