Accession Number : ADD014813

Title :   Method and Apparatus for Measuring Corrosion Beneath Thin Films.

Descriptive Note : Patent application, filed 23 Jan 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Agarwala, Vinod S ; Kennedy, Paul J

Report Date : 23 Jan 1990

Pagination or Media Count : 26

Abstract : This invention relates generally to a method and an apparatus for measuring corrosion and more particularly to a method and an apparatus for measuring the corrosion beneath thin films of materials. The destructive effects of corrosion are well known and efforts to minimize those effects are ongoing. The naval aircraft-carrier environment is a particularly corrosive one, with sulfur from aircraft-carrier stack gases combining with sea spray to provide a hostile environment which undermines the structural integrity of naval aircraft. Corrosion of aircraft hydraulic pistons, engine components, and bearings is a particularly serious problem. The corrosion protection of such parts relies greatly on the formation and stability of thin lubricant films which remain on the metal surfaces after the lubricant drains, and act as barriers to the hostile environment.

Descriptors :   AIRCRAFT, AIRCRAFT CARRIERS, BEARINGS, CORROSION, CORROSION INHIBITION, DESTRUCTION, ENEMY, ENGINE COMPONENTS, ENVIRONMENTS, FLUE GASES, HYDRAULICS, LUBRICATING FILMS, MATERIALS, MEASUREMENT, METALS, NAVAL AIRCRAFT, NAVY, PISTONS, RELIABILITY, STRUCTURAL PROPERTIES, SULFUR, SURFACES, THIN FILMS, AIRCRAFT, AIRCRAFT CARRIERS, BEARINGS, CORROSION, CORROSION INHIBITION, DESTRUCTION, ENEMY, ENGINE COMPONENTS, ENVIRONMENTS, FLUE GASES, HYDRAULICS, LUBRICATING FILMS, MATERIALS, MEASUREMENT, METALS, NAVAL AIRCRAFT, NAVY, PISTONS, RELIABILITY, STRUCTURAL PROPERTIES, SULFUR, SURFACES, THIN FILMS

Subject Categories : Metallurgy and Metallography
      Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE