PRACTICAL GALVANIC SERIES
Abstract
The prime objective of this work was the development of a practical galvanic series of metals and alloys to aid in the selection of compatible materials for missile systems. This was accomplished by studying the various metals and alloys coupled with a 110 copper alloy standard as the reference electrode, and monitoring potentials with a self-balancing potentiometric-type recorder. Each couple was partially immersed in a 5-percent salt (sodium chloride) solution. The effects of coatings and platings on the galvanic relationships existing between metals and alloys were also studied. Coatings and platings were studied with aluminum, magnesium, and steel as the substrates. Other studies included the effects on galvanic activity when strength levels within the same alloy were varied, current versus weight-loss measurements, and the comparison of other conducting solutions with the 5-percent sodium chloride solution used in the generation of this series. The study of the effect of strength level on galvanic activity showed that galvanic potentials can exist between specimens of the same alloy at different strength levels. Also, the galvanic potential varies with different conducting solutions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 10, 1967
- Accession Number
- AD0823185
Entities
People
- Charles M. Forman
- E. A. Verchot
Organizations
- United States Army Aviation and Missile Command