Plasma Spraying of Al-Si and Silicon on Magnesium Alloy under Protective Atmosphere

Tomáš Kubatík; Jan Stoulil; Marek Janata

doi:10.4028/www.scientific.net/MSF.867.71

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HomeMaterials Science ForumMaterials Science Forum Vol. 867Plasma Spraying of Al-Si and Silicon on Magnesium...

Plasma Spraying of Al-Si and Silicon on Magnesium Alloy under Protective Atmosphere

Abstract:

Magnesium alloy AZ 91 is widely used as a structural material, but its use is limited at higher temperatures and high humidity. Plasma spraying technology allows to prepare protective metallic and nonmetallic coatings on magnesium and its alloys. In this study magnesium alloy AZ 91 was coated using plasma spraying method by AlSi30 wt. % and silicon. The Al-Si was applied to provide a bond-coat for topmost layer of silicon. This study focused on feeding distance (FD) on the quality of the prepared layers. The layers were prepared with a thickness of about 100 μm. The layers were observed with a scanning electron microscope with elemental map analysis. The layers were measured by Electrochemical impedance spectroscopy.

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Periodical:

Materials Science Forum (Volume 867)

Pages:

71-76

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.867.71

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Online since:

August 2016

Authors:

Tomáš Kubatík*, Jan Stoulil, Marek Janata

Keywords:

AZ 91 Magnesium Alloy, Electrochemical Impedance Spectroscopy, Plasma Spraying, Silicon

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* - Corresponding Author

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