Accession Number:

ADA028295

Title:

The Effect of Aircraft Gas Turbine Engine Lubricants on Rolling/Sliding Contact Fatigue.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL AIR PROPULSION TEST CENTER TRENTON N J PROPULSION TECHNOLOGY AND PROJECT ENGINEERING DEPT

Personal Author(s):

Report Date:

1976-06-01

Pagination or Media Count:

62.0

Abstract:

Contact fatigue testing under conditions of both pure rolling and rolling with sliding were conducted on various lubricants and additives. Principal findings were that a perfluoroalkylpolyethers, C-ethers and a synthetic hydrocarbon traction fluid were all found to improve contact fatigue life over oils conforming to the MIL-L-23699B specification i.e. polyol esters b a phosphorous salt high gear loading additive was found to be detrimental to fatigue life c micropitting is a precursor to fatigue spalling when sliding is present d fatigue life decreases dramatically with increasing sliding velocity and increases with increasing rolling velocity, and e additives are most effective when sliding is present.

Subject Categories:

  • Lubricants and Hydraulic Fluids
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE