Effect of friction stir processing on the tribological performance of high carbon steel

S. H. Aldajah, O. O. Ajayi, G. R. Fenske, S. David

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

Friction stir processing (FSP) was applied to 1080 carbon steel as a means to enhance the near-surface material properties. The process transformed the original pearlite microstructure to martensite, resulting in significant increase in surface hardness. This surface hardening produced a significant benefit for friction and wear behavior of the steel as measured by unidirectional sliding ball-on-flat testing. Under dry sliding, FSP reduced friction coefficient by approximately 25% and wear rate by an order of magnitude. Under oil lubrication, FSP had only a marginal effect on friction, but it reduced wear rates by a factor of 4. The improvement in tribological performance of 1080 steel by FSP technique is attributed to reduced plasticity of the near-surface material during sliding contact.

Original languageEnglish
Pages (from-to)350-355
Number of pages6
JournalWEAR
Volume267
Issue number1-4
DOIs
Publication statusPublished - Jun 15 2009

Keywords

  • FSP
  • Friction
  • Tribology
  • Wear

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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