Macrokinetics of plasma electrolytic oxidation of AZ91D alloy

Alex Lugovskoy, Barbara Kazanski, Michael Zinigrad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Plasma Electrolytic Oxidation (PEO) produces thick oxide layer on the surface of metals and alloys If the process is performed in AC mode, two levels of kinetics can be defined On one hand, during each period of the alternating (50-60 Hz) current cathodic and anodic processes are repeated The kinetics of these processes can be referred to as the microkinetics On the other hand, the treatment time for a typical specimen is 30-90 minutes and the kinetical behavior (macrokinetics) on that scale is completely different than the microkinetics For many practical purposes, the macrokinetics of a PEO process is not only more ready for an experimental study, but also much more useful in the applicative sense A macrokinetical study of the PEO treatment of AZ91D magnesium alloy is presented Plausible explanations of the process are discussed and optimal process parameters are determined

Original languageEnglish
Title of host publication16th IFAC Symposium on Automation in Mining, Minerals and Metal Processing, MMM 2013 - Proceedings
PublisherIFAC Secretariat
Pages421-424
Number of pages4
EditionPART 1
ISBN (Print)9783902823427
DOIs
StatePublished - 2013
Event16th IFAC Symposium on Automation in Mining, Minerals and Metal Processing, MMM 2013 - San Diego, CA, United States
Duration: 25 Aug 201328 Aug 2013

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
Volume15
ISSN (Print)1474-6670

Conference

Conference16th IFAC Symposium on Automation in Mining, Minerals and Metal Processing, MMM 2013
Country/TerritoryUnited States
CitySan Diego, CA
Period25/08/1328/08/13

Keywords

  • Kinetics.
  • Micro arc oxidation
  • Plasma electrolytic oxidation

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