The Influence of Heat Treatment on the Performance of Highly Corrosion Resistant Aluminum Alloys

Abstract

New 'stainless aluminum' alloys must be produced using expensive processing methods such as co-sputter deposition and ion implantation. To determine the influence of temperature on the sputter deposited alloys heat treatments were conducted. These heat treatments caused pitting potential to decrease from the 'as processed' values, but did not cause a total loss of corrosion properties relative to pure aluminum. Constant potential tests below the determined pitting potential were conducted on both heat treated and 'as processed' sputter deposited alloys in an attempt to confirm the heat treatment data. Anodic currents were observed for both conditions. Some mechanical failure has been noted with these thin film alloys, which could result in crevice corrosion, possibly causing the anodic currents detected. This contradictory result requires further investigation.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 08, 1992
Accession Number
ADA257115

Entities

People

  • Frederick G. Schenk

Organizations

  • United States Naval Academy

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Chemistry
  • Corrosion Resistance
  • Electron Microscopes
  • Electron Microscopy
  • Ion Implantation
  • Materials
  • Materials Science
  • Mechanical Properties
  • Metallurgy
  • Microscopes
  • Phase Diagrams
  • Scanning Electron Microscopy
  • Solid Solutions
  • Thin Films
  • United States
  • United States Naval Academy

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Semiconductor Device Technology
  • Thermal Physics or Thermal Science.