Collaborative Research and Development (CR&D). Delivery Order 0014: Anti-Fretting Coatings Research Development

Abstract

This research in support of the Air Force Research Laboratory, Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 19 May 2003 through 30 November 2006. This task examined fretting wear that is an accumulation of damage that occurs at component interfaces that are subjected to high contact stresses coupled with low amplitude oscillation. In the titanium dovetail joints of turbine engines, fretting wear can be severe. Surface treatments, such as plasma sprayed coatings and solid lubricants, have been implemented to mitigate the fretting wear problem. However, the current coating systems are reliant primarily on the applied lubricant. Once the lubricant is worn away the soft plasma sprayed coating is exposed and can damage the mated Ti6Al4V surface. Therefore the blades using the current coating systems need to be replaced before the lubricants are worn completely away, which results in high maintenance costs from schedule based periodic blade replacement.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2006
Accession Number
ADA534532

Entities

People

  • Carl H. Hager

Organizations

  • Universal Technology Corporation (United States)

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Chemical Analysis
  • Chemistry
  • Electron Microscopy
  • Friction
  • Hardening
  • Lubricants
  • Manufacturing
  • Materials
  • Physical Vapor Deposition
  • Scanning Electron Microscopy
  • Solid Lubricants
  • Surface Roughness
  • Three Dimensional
  • Titanium
  • Turbines

Readers

  • Aerospace Engineering
  • Surface Coatings Technology.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).