Silane-Based Hybrid Coatings for the Corrosion Protection of AA 2024-T3 Alloy

Authors

  • Brenda Diane Pereira Martins
  • Laís de Campos Barbieri
  • Amanda Alvarenga Coutinho Silva
  • Naiana Serafim Goulart
  • Renata Batista Rivero Garcia
  • Luciana de Simone Cividanes
  • Elizabete Yoshie Kawachi

Keywords:

Sol-gel, Coating, Corrosion resistance, Aluminum alloy

Abstract

In order to contribute to the corrosion protection of aluminum alloys, silane-based hybrid coatings have been widely studied in the aerospace industry for their good adhesion to aluminum substrates, compatibility with organic paintings and to protect the underlying material, in addition to being much less toxic than the commonly used chromatization process. In this work, hybrid and inorganic sol-gel coatings were evaluated as corrosion inhibitor films for AA2024-T3 alloy. The films were characterized by linear polarization resistance (LPR) and scanning electron microscopy (SEM), which indicated that these coatings provide a lower tendency for the substrate corrosion.

10o ENCONTRO TÉCNICO DE MATERIAIS E QUÍMICA

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Published

2020-01-21

Issue

Vol. 11 (2019): JATM-ETMQ (Special edition)

Section

Original Papers

License

This work is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0. Authors are free to Share (copy and redistribute the material in any medium or format) and Adapt (remix, transform, and build upon the material for any purpose, even commercially). JATM allow the authors to retain publishing rights without restrictions.