Anodic oxidation and silane treatment for corrosion protection of AM60B magnesium alloy

Anna Da Forno, Massimiliano Bestetti, Nora Lecis, Stefano Paolo Trasatti, Monica Trueba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Oxide films have been produced on AM60B magnesium alloy using micro-arc oxidation process in an environmentally friendly alkaline solution with and without addition of different oxides nanoparticles (TiO 2, ZrO 2 and Al 2O 3). In order to seal the oxides porosity generated in the sparking process, a silane-based top coat has been applied. The surface morphology of samples was analyzed by Scanning Electron Microscopy (SEM). Scratch tests were performed for evaluating the adhesion strength of the anodic oxides. The corrosion resistance of the oxide- silane- based topcoat composite coatings was evaluated in 3.5% NaCl solution using anodic polarization tests. The anodizing in oxides nanoparticles rich solutions (ZrO 2 or Al 2O 3), followed by a silane top coat treatment performed using OSi as precursor, is an interesting way to synthesize adherent corrosion resistant coatings on magnesium alloy AM60B.

Original languageEnglish
Title of host publicationLight Metals Technology V
Pages413-416
Number of pages4
Volume690
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event5th International Conference on Light Metals Technology - Luneburg, Germany
Duration: 19 Jul 201122 Jul 2011

Publication series

NameMaterials Science Forum
Volume690
ISSN (Print)0255-5476

Conference

Conference5th International Conference on Light Metals Technology
CountryGermany
CityLuneburg
Period19.7.1122.7.11

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Keywords

  • Corrosion resistance
  • Magnesium alloys
  • Micro-arc anodizing
  • Nanoparticles oxides
  • Scratch test
  • Silane deposition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Da Forno, A., Bestetti, M., Lecis, N., Trasatti, S. P., & Trueba, M. (2011). Anodic oxidation and silane treatment for corrosion protection of AM60B magnesium alloy. In Light Metals Technology V (Vol. 690, pp. 413-416). (Materials Science Forum; Vol. 690). https://doi.org/10.4028/www.scientific.net/MSF.690.413