Rolling Contact Fatigue Life and Spall Propagation Characteristics of AISI M50, M50 NiL, and AISI 52100. Part 3. Metallurgical Examination (Preprint)

Abstract

This is the third part of a three-part series which investigates the rolling contact fatigue initiation and spall propagation characteristics of three bearing materials, namely AISI 52100, VIM-VAR M50, and VIM-VAR M50 NiL steels. While there is substantial prior work published on the rolling contact fatigue initiation of these materials, little is known about their spall propagation characteristics after spall initiation. In Part III, 208 size, 40 mm bore bearings are examined for changes in appearance of the microstructure; as well as residual stress as a function of depth in the circumferential direction. Correlations between experimental results from Part I and computer modeling in Part II are made.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2009
Accession Number
ADA510508

Entities

People

  • Hitesh K. Trivedi
  • Lewis Rosado
  • Nelson H. Forster
  • William P. Ogden

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Ceramic Materials
  • Fatigue Life
  • Heat Treatment
  • Materials
  • Microstructure
  • Military Research
  • Plastic Deformation
  • Residual Stress
  • Residuals
  • Stresses
  • Tensile Stress
  • Turbines
  • X Rays
  • X-Ray Diffraction

Readers

  • Materials Science (Mechanical Engineering).
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).