Accession Number:

ADA139501

Title:

The Effect of Some Water-Displacing Corrosion Preventives on Corrosion of Aluminium Alloys 7075-T651 and 2024-T6,

Descriptive Note:

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s):

Report Date:

1983-08-01

Pagination or Media Count:

17.0

Abstract:

The effectiveness of six commercial water-displacing corrosion preventive formulations WDCPs in inhibiting corrosion of two aluminum alloys used in aircraft construction has been investigated. Two solutions, 0.1 molar sodium chloride and 0.1 molar sodium chloride-0.18 molar aluminum chloride, were chosen to simulate aircraft service environments in the laboratory tests. Testing was done by treating specimens with WCDPs prior to exposure to the corrosive media and also by immersing specimens in the test media and then adding WDCPs to these solutions. Evaluation was by weight loss measurements and subsequent microscopic examination. In some of the tests. A novel method of estimating weight loss during the course of a test by analysis of small samples of solution was used. All six WDCPs tested were found to inhibit corrosion of the aluminum alloys significantly under the test conditions. Author

Subject Categories:

  • Aircraft
  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE