Effects of Surface Treatment on Fretting Fatigue Performance of Ti-6Al-4V

Abstract

The fretting fatigue performance of Ti-6Al-4V after isothermal exposure was explored in test coupons in low plasticity burnished (LPB), shot peened (SP), and electropolished (ELP) baseline conditions. In the current study, fretting fatigue data and fractography are presented along with in-depth residual stress profiles, both before and after the isothermal exposure. Surface roughness data for each of the three surface conditions are reported. For the studied fretting configuration, it was found that both the shot peening and LPB process improved the fretting fatigue performance over the baseline electropolished condition. In the LPD'd case the fretting damage was largely ameliorated by the burnishing process.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2004
Accession Number
ADA430663

Entities

People

  • M. J. Shepard
  • N. Jayaraman
  • P. S> Prevey

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Cold Working
  • Failure Mode And Effect Analysis
  • Finishes
  • Manufacturing
  • Materials
  • Materials Engineering
  • Mechanical Properties
  • Mechanical Working
  • Residual Stress
  • Roughness
  • Shot Peening
  • Stresses
  • Surface Finishing
  • Surface Roughness
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design