OXIDATION-CORROSION CHARACTERISTICS OF AIRCRAFT TURBINE ENGINE LUBRICANTS

Abstract

Oxidation-corrosion test data are presented for 46 lubricants, 40 MIL-L-7808 type lubricants and six MIL-L-23699 type lubricants, evaluated at one or more temperatures within the range of 350 to 400 F. In addition, the compatibility of selected lubricants when blended with lubricants of the same general class was evaluated. The test conditions which were varied were temperature and the use of reflux and nonreflux glassware configurations. Relatively milk oxidative degradation occurred at 350 and 375 F test conditions. Using an arbitrary rating point of 100% viscosity increase (100 F) as the maximum viscosity increase allowable for satisfactory performance, 23 of the 37 lubricants evaluated at 385 F were satisfactory using the nonreflux test procedure. Sixteen of the 29 lubricants evaluated at 390 F were satisfactory and only four of the 16 evaluated at 400 F provided satisfactory performance. The effect of condensate return at 385 F revealed that the majority of lubricants evaluated were unaffected.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1966
Accession Number
AD0481098

Entities

People

  • Burl B. Baber
  • J. P. Cuellar
  • P. M. Ku

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Flow
  • Air Force
  • Air Supplies
  • Aircrafts
  • Body Weight
  • Contracts
  • Flow Rate
  • Government Procurement
  • Governments
  • Lubrication
  • Metals
  • Phase
  • Plastic Explosives
  • Standards
  • Test Methods
  • Turbines
  • United States Government

Readers

  • Aerospace Engineering
  • Analytical Chemistry
  • Mathematics or Statistics