Evaluation of Corrosion Inhibiting Pigments for Aluminum
Abstract
Laboratory corrosion tests of inhibitors indicate that the inhibitors which contain hexavalent chromium gave the best protection for aluminum. However, potassium permanganate, also an oxidizing agent which deposits manganese dioxide on the aluminum, prevents corrosion. For screening inhibitors, a weighed aluminum coupon was immersed in a 5% sodium chloride solution containing 0.1% of inhibitor. The coupon was left undisturbed for approximately three weeks. It was then rinsed in distilled water, dried, and weighed and examined visually.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 30, 1972
- Accession Number
- AD0749705
Entities
People
- William C. Marshall
Organizations
- Naval Air Warfare Center Warminster