Title of article :
Microstructure and wear properties of TiC/FeCrBSi surface composite coating prepared by laser cladding
Author/Authors :
Wang، نويسنده , , X.H. and Zhang، نويسنده , , M. and Liu، نويسنده , , Sabrina X.M. and Qu، نويسنده , , S.Y. and Zou، نويسنده , , Z.D.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
7
From page :
3600
To page :
3606
Abstract :
Titanium carbide particles reinforced Fe-based surface composite coatings were fabricated by laser cladding using a 5 kW CO2 laser. The microstructure, phase structure 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 were formed via in situ reaction between ferrotitanium and graphite in the molten pool during the laser-clad process. The morphology of TiC is mainly cubic and dendritic form; and the TiC carbides were distributed uniformly in the composite coating. The TiC/matrix interface was found to be free from cracks and deleterious phases. The coatings reinforced by TiC particles revealed higher wear resistance and lower friction coefficient than that of the substrate and FeCrBSi laser-clad coating.
Keywords :
Fe-based composite coating , Wear resistance , Laser cladding , In situ TiC , microstructure
Journal title :
Surface and Coatings Technology
Serial Year :
2008
Journal title :
Surface and Coatings Technology
Record number :
1818864
Link To Document :
بازگشت