Wear and friction properties of laser surface hardened En31 steel

X. M. Zhang, Hau Chung Man, H. D. Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

23 Citations (Scopus)


The surface of En31 steel was treated by CO2laser for solid state transformation hardening. The wear and friction characteristics of the treated surfaces were examined and compared with untreated surfaces using the lubricated ring-on-block technique. The microstructures of the laser-hardened tracks and the worn surfaces were studied by SEM. The results indicated that the surface of a single hardened track and the surface with two non-overlapping tracks have better wear and friction properties, as compared with the untreated surfaces. Further, surfaces with non-overlapping tracks were found to have better friction properties than the homogeneous hardened zone of a single track.
Original languageEnglish
Pages (from-to)162-166
Number of pages5
JournalJournal of Materials Processing Technology
Issue number1-3
Publication statusPublished - 1 Jan 1997


  • CO laser 2
  • En31 steel
  • Friction
  • Surface modification
  • Wear

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering


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