Implantation of Ionized Monomer into Aluminum Alloy 6061 for Marine Corrosion Protection.
Abstract
Ion implantation technology has been extended to include the ionization of monomer gases and their subsequent acceleration and implantation into metallic and other substrates. The variables and options involved in the process are numerous and are discussed in the report. The resulting thin films are polymeric in nature and possess no traditional interface with the substrate, thus improving adhesion. The purpose of this study is to investigate these ion-beam-related film formation techniques for their ability to protect 6061-T6 aluminum alloy from corrosion attack in natural seawater. Improved resistance to pitting corrosion was observed for several of the treatments tested. The best resistance to pitting was produced by the following treatment: a 30-keV hydrogen ion beam is directed through a butadiene collisional gas with a 13.6-V/cm field applied to the substrate. This treatment is believed to promote hydrocarbon polymerization, resulting in a thin film possessing increased adhesion and film integrity. It should be re-emphasized that the purpose of this investigation was to screen a number of possible treatments for protection of one alloy in seawater. The positive results will hopefully encourage broader experimentation with this unique and potentially very useful technology. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1984
- Accession Number
- ADA144874
Entities
People
- G. E. Stoner
- G. L. Cahen Jr.
- M. W. Ferralli
- P. J. Moran
- S. R. Taylor