Effect of Chromate and Chromate-Free Organic Coatings on Corrosion Fatigue of an Aluminum Alloy

Abstract

Effect of chromate and chromate-free and their compositions on the protective properties of organic coatings on cyclically stressed aluminum alloys was studied. Strontium chromate pigment, zinc phosphate pigment, calcium ion exchange silica pigment, natural bentonite, natural zeolite and Ca-ion exchanged and Zn-ion exchanged zeolites were studied as aluminum alloy corrosion inhibitors in organic coatings. Experimental methods included electrochemical impedance spectroscopy method (EIS), DC polarization, optical microscopy and scanning electron microscopy (SEM) with EDX analysis, corrosion fatigue and tribocorrosion tests.

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Document Details

Document Type
Technical Report
Publication Date
Feb 20, 2012
Accession Number
ADA563067

Entities

People

  • Vasyl Pokhmurskii

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Aircrafts
  • Aluminum
  • Aluminum Alloys
  • Chemical Synthesis
  • Chemistry
  • Chromium Compounds
  • Corrosion
  • Corrosion Inhibition
  • Corrosion Resistance
  • Electrochemical Cells
  • Electron Microscopy
  • Hydrogen Embrittlement
  • Inhibitors
  • Materials
  • Materials Science
  • Organic Coatings
  • Scanning Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science and Engineering.
  • Surface Coatings Technology.

Technology Areas

  • Microelectronics