Chemistry, Structure and Morphology of Native and Passive Oxide Films on Aluminum Rich Amorphous Al-Fe-Ce Alloys.

Abstract

Aluminum based metallic glasses are of technological importance due to their high strength, low density, and anticipated high resistance to corrosion. We report on the corrosion characteristics such as corrosion potentials, corrosion currents, and pitting potentials of melt-spun ribbons of Al(90)Fe(10-x)Ce(x) (x = 3,5,7). In addition, we have examined the chemistry, structure, and morphology of the native and passive oxide films using X-ray Absorption Fine Structure Spectroscopy, X-ray Photoelectron Spectroscopy and Scanning Electron Microscopy. Passive oxide films were induced by anodizing below the pitting potential in an aqueous solution of 0.9 wt% NaCl for 30 and 60 minutes using potentiodynamic polarization techniques.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 1994
Accession Number
ADA331092

Entities

People

  • Azzam N. Mansour
  • C. A. Melendres

Organizations

  • Naval Surface Warfare Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Chambers
  • Chemistry
  • Electron Emission
  • Electron Microscopes
  • Electron Microscopy
  • Electrons
  • Grain Boundaries
  • Ionization Chambers
  • Materials
  • Materials Science
  • Measurement
  • Oxide Films
  • Scanning Electron Microscopes
  • Scanning Electron Microscopy
  • Spectra
  • X Rays

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Surface Engineering/Surface Coating Technology.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene