The Effect of Carbon and Boron on the Friction Behavior of Ti-Implanted 52100 Bearing Steel at Low Sliding Speeds

Abstract

The low speed friction behavior of Ti implanted AISI 52100 bearing steel (1.5% Cr, 1% C by weight) may be altered by varying the concentration and distribuition of the titanium and carbon present in the surface. With the aid of carbon which is either directly implanted or gettered during the implantation process, wear resistant, low friction surfaces may be produced. By assuring a sufficient supply of carbon, the Ti dosage required to produce a wear resistant surface may be reduced by more than 50%. Transmission electron microscopy of dual implants of carbon and titanium each at a dose of 2 x 10 to the 17th power showed that the surface was still crystalline and typical for a martensitic material. In contrast, friction testing of samples implanted with titanium and boron, another interstitial species forming wear resistant species (i.e., TiB2)) , did not produce surfaces which were wear resistant nor substantially reduce the friction. Auger analysis in conjunction with ion milling was used to compare compositions of implanted surfaces.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1982
Accession Number
ADA117742

Entities

People

  • Irwin L. Singer
  • Robert N. Bolster
  • Russell A. Jeffries

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alcohols
  • Bearings
  • Coefficients
  • Contrast
  • Data Analysis
  • Diffraction
  • Electron Diffraction
  • Electron Microscopy
  • Electrons
  • Friction
  • Implantation
  • Materials
  • Measurement
  • Methanols
  • Microscopy
  • Spectra
  • Transmission Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Toxicology/Environmental Toxicology
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Microelectronics