Accession Number : ADA106127


Title :   Corrosion Inhibiting Engine Oils


Descriptive Note : Final interim rept. 4 Sep 1979-1 Dec 1980


Corporate Author : PRATT AND WHITNEY WEST PALM BEACH FL GOVERNMENT PRODUCTS DIV


Personal Author(s) : Brown, G C ; Meehan, R J ; Warner, P A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a106127.pdf


Report Date : Aug 1981


Pagination or Media Count : 73


Abstract : The Fluids, Lubricants, and Elastomers Branch of the Materials Laboratory, AFWAL, established the requirements for a MIL-L-7808H operational oil with corrosion inhibition characteristics at least equal to those of MIL-C- 8188C. The new oil formulation is to provide corrosion inhibition under long- term storage conditions of the ALCM F107 turbine engine. During the initial fifteen-month effort, several approaches were evaluated as candidate methods for determining the effectiveness of corrosion inhibiting oil additives. A screening procedure was developed after preliminary modifications were made to the Corrosion Rate Evaluation Procedure (CREP). Using the CREP together with compatibility and miscibility screening of oil/inhibitor blends, a total of 67 candidate corrosion inhibitors (CCI) were evaluated. These included CCI obtained from Bray Oil Company, El Monte, California, as part of a subcontract to synthesize candidate corrosion inhibitors. Additional tests were completed on a preliminary physical and chemical property evaluation of the oil/inhibitor blends in regard to MIL-L-7808H and MIL-C-8188C specifications.


Descriptors :   *LUBRICANT ADDITIVES , *AIRCRAFT ENGINE OILS , *GAS TURBINES , *CORROSION INHIBITION , OPERATIONAL EFFECTIVENESS , OXIDATION , SULFONATES , GRAVIMETRIC ANALYSIS , SOLUBILITY , HUMIDITY , ORGANIC ACIDS , COMPATIBILITY , FORMULATIONS , SALT SPRAY TESTS , TEST AND EVALUATION , CORROSION


Subject Categories : Organic Chemistry
      Jet and Gas Turbine Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE