Study of the Lubrication Mechanism of Thin Film Lubricated Concentrated Steel Contacts. The Influence of the Steel.

Abstract

The lubrication condition of sliding concentrated steel contacts can be described in terms of transition diagrams, relating the mode of lubrication (i.e. (partial) elastohydrodynamic (EHD), boundary and unlubricated) to load, speed and temperature. Increasing the percentage of alloying elements of the steel (i.e. from 1.5% Cr to 5.2% Cr, 1% Mo, 0.2% V) seriously impairs the load carrying capacity of the boundary lubricant film, while that of the EHD film remains unaffected. Formation of retained austenite (with corresponding coarsening of the structure and some decrease in hardness) mildly impairs boundary lubrication but enhances EHD lubrication. The results are compared to those of other authors and conclusions are drawn with respect to correlations between the test methods used. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1977
Accession Number
ADA052169

Entities

People

  • A. Begelinger
  • A. W. J. De Gee

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Austenite
  • Chemical Composition
  • Critical Temperature
  • Diesel Engines
  • Elements
  • Films
  • Friction
  • Heat Treatment
  • Lubricants
  • Lubrication
  • Materials
  • Payload
  • Steel
  • Surface Roughness
  • Test Methods
  • Thin Films
  • Tool Steel

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).