Journal of Materials Science

, Volume 24, Issue 12, pp 4343–4349 | Cite as

Laser surface melting of low and medium carbon steels: influence on mechanical and electrochemical properties

  • J. M. Pelletier
  • D. Pergue
  • F. Fouquet
  • H. Mazille
Papers
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Abstract

The influence of a laser melting on both mechanical and electrochemical properties was studied in two carbon steels. Geometry and microstructure of the melt zone were first observed by optical and scanning electron microscopy, in various experimental conditions: with different interaction times and power density, for simple and multiple track melting. A large hardening was induced by the severe quenching resulting from rapid solidification; therefore the presence of hard points on the surface of the material may increase lifetime of specimens and improve tribological properties. This hardening created by the laser melting did not produce deleterious modifications of surface roughness or corrosion behaviour, at least in mildly corrosive saline solutions.

Keywords

Microstructure Scanning Electron Microscopy Surface Roughness Power Density Saline Solution 
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Copyright information

© Chapman and Hall Ltd 1989

Authors and Affiliations

  • J. M. Pelletier
    • 1
  • D. Pergue
    • 1
  • F. Fouquet
    • 1
  • H. Mazille
    • 2
  1. 1.GEMPPM, UA 341, BAT 502, INSAVilleurbanne CedexFrance
  2. 2.LPCI, BAT 401, INSAVilleurbanne CedexFrance

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