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Microstructure and corrosion resistance of magnesium alloys with galvanic coatings

✍ Scribed by Andrzej Kielbus; Grzegorz Moskal; Roland Cibis

Publisher
Elsevier
Year
2011
Tongue
English
Weight
817 KB
Volume
10
Category
Article
ISSN
1877-7058

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✦ Synopsis

The article presents the technology of obtaining the galvanic coatings on the ready structural elements made of Mg-Al magnesium alloys. The technology was developed in NTP CIBIS Ltd in cooperation with the Silesian University of Technology. The influence of the mechanical surface preparation and deposition on the basis of sulfamate nickel and copper plating on the layer quality and corrosion resistance were described. The final galvanic layer with a new type of intermediate sulfamate nickel layer is characterized by high uniformity irrespective of an observation location. Corrosion resistance of the elements with the coatings deposited on the surfaces vibro-abrasively machined is much higher than that of the coatings deposited on the surfaces ground and polished.

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