Scrape Potential Measurements on Aluminum Alloy Type 7075 in NaBr and NaCl Solutions.
Abstract
Scrape potential measurements were made on aluminum alloy type 7075 in concentrated solutions of NaBr and NaCl. The measured parameters, V sub sc, the scrape potential; V sub ss, the steady state potential; and delta V, the difference between the steady state potential and the scrape potential are a function of the electrolyte and concentration. From the potential-time curve describing the rate at which the potential returns to the steady state, two dV/dt parameters can be distinguished. The first in the millisecond range, is extremely high and is identified with the formation of complexes, the second, lower, is identified with the formation of the passive film.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1975
- Accession Number
- ADA020195
Entities
People
- Patricia P. Trzaskoma
- R. T. Foley
Organizations
- American University