Characterization and Performance of Laser Alloyed Commercial Tool Steels

Abstract

The paper presents the effect of alloying with tungsten carbide on properties of the X40CrMoV5-1 steel surface layer, using the high power diode laser (HPDL). Selection of laser operating conditions is discussed, as well as alloying material, and their influence on structure and chemical composition of the steel. Analysis of the process conditions influence on thicknesses of the alloyed layer and heat-affected zone is presented.

Keywords

• Tool steels, Laser alloying, Surface engineering.

References

1. L.A. Dobrzański., M. Bonek., E. Hajduczek., A. Klimpel., A. Lisiecki.: Comparison of the structures of the hot-work tool steels laser modified surface layers, Journal of Materials Processing Technology, 164-165, 1014-1024, 2005.
2. J. Kusiński.: Laser Applications in Materials Engineering, WN „Akapit”, Cracow, 2000 (in Polish).
3. Lin Li.: The advances and characteristics of high-power diode laser materials processing, Optics and Lasers in Engineering 34, 231-253, 2000.
4. M. Bonek, G. Matula, L.A. Dobrzanski: Effect of laser surface melting on structure and properties of a high speed tool steel, Advanced Materials Research, 2011, Vols. 291-294, 1365-1368.
5. M. Bonek, L.A. Dobrzański: Characterization performance of laser melted commercial tool steels, Materials Science Forum, 2010, Vols. 654-656, 1848-1851.
6. G. Matula, M. Bonek,L.A. Dobrzański: Comparison of Structure and Properties of Hard Coatings on Commercial Tool Materials Manufactured with the Pressureless Forming Method or Laser Treatment, Materials Science Forum, 2010, Vols. 638-642, 1830-1835.