Journal of Materials Science

, Volume 43, Issue 5, pp 1546–1551 | Cite as

Microstructure and wear properties of Fe–TiC surface composite coating by laser cladding

  • Shiyao Qu
  • Xinhong WangEmail author
  • Min Zhang
  • Zengda Zou


AISI 1045 steel surface was alloyed with pre-placed ferrotitanium and graphite powders by using a 5-kW CO2 laser. In situ TiC particles reinforced Fe-based surface composite coating was fabricated. The microstructure and wear properties were investigated by means of scanning electron microscopy, transmission electron microscopy, and X-ray diffraction, as well as dry sliding wear test. The results showed that TiC carbides with cubic or flower-like dendritic form were synthesized via in situ reaction between ferrotitanium and graphite in the molten pool during laser cladding process. The TiC carbides were distributed uniformly in the composite coating. The TiC/matrix interface was found to be free from cracks and deleterious phase. The coatings reinforced by TiC particles revealed higher wear resistance than that of the substrate.


Composite Coating Molten Pool Laser Cladding Blended Powder Slide Wear Test 



This research was supported by the Development Program of Shandong Province (06GG3203009).


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Shiyao Qu
    • 1
  • Xinhong Wang
    • 1
    Email author
  • Min Zhang
    • 2
  • Zengda Zou
    • 1
  1. 1.School of Materials Science and EngineeringShandong UniversityJinanChina
  2. 2.School of Mechanical Engineering Shandong UniversityJinanChina

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