EFFECTS OF HEATING CHROMATE CONVERSION COATINGS

Abstract

Chemical chromate conversion coated zinc, cadmium, aluminum and magnesium were oven heated at temperatures from 50 to 200C and subsequently tested for salt spray corrosion resistance. Chromated zinc and aluminum were adversely affected in corrosion resistance after exposure to air temperatures above 100C. Exposure to elevated temperatures resulted in insolubilization of hexavalent chromium and cracking of the chromate coating.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1966
Accession Number
AD0685089

Entities

People

  • A. Gallaccio
  • F. Pearlstein
  • M. R. D'ambrosio

Tags

DTIC Thesaurus Topics

  • Air Temperature
  • Aluminum
  • Availability
  • Chromium
  • Chromium Compounds
  • Conversion
  • Corrosion
  • Corrosion Resistance
  • Dehydration
  • Leaching
  • Magnesium
  • Metals
  • New York
  • Nitric Acid
  • Removal
  • Resistance

Fields of Study

  • Environmental science
  • Materials science

Readers

  • Surface Engineering/Surface Coating Technology.