A composite coating for corrosion and wear protection of AM60B magnesium alloy

Anna Da Forno, Massimiliano Bestetti

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

7 Citations (Scopus)

Abstract

In this paper a protection process against corrosion and wear for AM60B magnesium alloys, by multilayer approach, is related. The coating consists of a porous oxide layer, obtained in micro-arc anodizing regime, and two or three layers deposited by sol-gel technique. The anodic oxidation pre-treatment improves the adhesion of the sol-gel layers, which are responsible for the sealing of the anodic oxide pores and for the corrosion protection effect. In addition the multilayer system significantly improves AM60B alloy wear resistance. Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) were employed to assess morphology and crystallographic structure. Electrochemical polarization and wear tests were performed in order to evaluate the corrosion resistance behaviour and the wear resistance of the coated magnesium alloys.

Original languageEnglish
Title of host publicationLight Weight Metal Corrosion and Modeling for Corrosion Prevention, Life Prediction and Assessment
Pages79-84
Number of pages6
Volume138
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2nd Workshop on Corrosion Modeling for Life Prediction, CMLP 2010 - Rome, Italy
Duration: 18 Apr 201020 Apr 2010

Publication series

NameAdvanced Materials Research
Volume138
ISSN (Print)1022-6680

Conference

Conference2nd Workshop on Corrosion Modeling for Life Prediction, CMLP 2010
CountryItaly
CityRome
Period18.4.1020.4.10

Keywords

  • Corrosion resistance
  • Magnesium alloys
  • Micro-arc anodizing
  • Wear resistance

ASJC Scopus subject areas

  • Engineering(all)

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