Corrosion and Wear Resistance of PTFE-Al2O3 Coatings Deposited on Aluminum Alloy by a Microblasting Process

A. M. Oladoye*, J. G. Carton, A. Baroutaji, M. Obeidi, J. Stokes, B. Twomey, A. G. Olabi

*Corresponding author for this work

Research output: Chapter in Book/Published conference outputConference publication

Abstract

In this study, the suitability of PTFE-based coating deposited on AA3003 Aluminum alloy by a non-conventional method for corrosion and wear protection was investigated. The coatings were deposited from a mixture of PTFE and alumina powders at room temperature and atmospheric pressure. The coatings were characterised with SEM/EDX, XRD and contact angle goniometer. The corrosion performance of the coatings in 3.5 wt% NaCl was evaluated using electrochemical impedance spectroscopy (EIS) and wear performance was investigated using a pin-on-disk wear tester. The results indicated that the coatings exhibited about threefold reductions in the wear rate of AA3003 alloy and a twofold increase in its polarisation resistance. This improvement was discussed in relation to the characterisation results.

Original languageEnglish
Title of host publicationTMS 2019 148th Annual Meeting and Exhibition Supplemental Proceedings
PublisherSpringer
Pages755-762
Number of pages8
ISBN (Print)9783030058609
DOIs
Publication statusE-pub ahead of print - 27 Feb 2019
Event148th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2019 - San Antonio, United States
Duration: 10 Mar 201914 Mar 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference148th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2019
Country/TerritoryUnited States
CitySan Antonio
Period10/03/1914/03/19

Keywords

  • Aluminium alloy
  • CoBlast
  • Corrosion
  • PTFE-alumina coatings
  • Wear

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