Formation of Porous Films on Titanium Alloys by Anodization Treatments
Abstract
This investigation is part of a program which looks at the effects of surface treatments on surface chemistry and morphology of titanium and titanium alloys. This part considers the effect of surface treatments on the alloy titanium-6 aluminum-4 vanadium which use anodization to produce a porous oxide film. Porous anodized films on titanium alloys have shown to be advantageous for adhesive bonding and other purposes. Porosity may be achieved by increasing current density in the anodization bath by increasing the voltage, increasing the concentration of the electrolyte, increasing the temperature, or adding current carrying ions to the electrolyte. In this work, experiments are described in which each of the methods for increasing current density are accomplished. Characterization results on the surfaces of these anodized oxides are shown using scanning electron microscopy, ion scattering spectrometry, secondary ion mass spectrometry, and Auger electron spectrometry. Addition of lithium nitrate to phthalic acid electrolytes causes porosity in anodized films, but the lithium ions do not enter the oxide film.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1979
- Accession Number
- ADA077676
Entities
People
- W. L. Baun
Organizations
- Air Force Research Laboratory