EVALUATION OF CORROSION INHIBITING PIGMENTS FOR ALUMINUM

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.

• Corporate Authors:

  Naval Air Development Center

  Air Vehicle Technology Department
  Warminster, PA  United States 
• Authors:
  • Marshall, W C
• Publication Date: 1972-8-30

Media Info

• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Aluminum alloys; Corrosion; Corrosion protection; Corrosion resistant materials; Films (Coatings); Oxides
• Uncontrolled Terms: Corrosive environments
• Old TRIS Terms: Oxide films
• Subject Areas: Construction; Marine Transportation;

Filing Info

• Accession Number: 00041726
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NADC-72159-VT Phase Rpt
• Files: TRIS
• Created Date: Mar 19 1973 12:00AM