SURFACE PROPERTIES OF THE IN SITU FORMED CERAMICS REINFORCED COMPOSITE COATINGS ON TI-3AL-2V ALLOYS

The synthesis of hard composite coating on titanium alloy by laser cladding of Al/Fe/Ni+C/Si3N4 pre-placed powders has been investigated in detail. SEM result indicated that a composite coating with metallurgical joint to the substrate was formed. XRD result indicated that the composite coating mainly consisted of γ-(Fe, Ni), FeAl, Ti3Al, TiC, TiNi, TiC0.3N0.7, Ti2N, SiC, Ti5Si3 and TiNi. Compared with Ti-3Al-2V substrate, an improvement of the micro-hardness and the wear resistance was observed for this composite coating.

[1]  C. Chen,et al.  Improvement in surface performance of Al3Ti+TiB2/(Ni coated WC) laser cladded coating with Al2O3/nano-Y2O3 , 2011 .

[2]  Chuanzhong Chen,et al.  PHASE CONSTITUENTS AND MICROSTRUCTURE OF Ti3Al/Fe3Al + TiN/TiB2 COMPOSITE COATING ON TITANIUM ALLOY , 2011 .

[3]  J. Candel,et al.  Sliding wear resistance of TiCp reinforced titanium composite coating produced by laser cladding , 2010 .

[4]  Jiansong Zhou,et al.  Microstructure and tribological properties of in situ synthesized TiC, TiN, and SiC reinforced Ti3Al intermetallic matrix composite coatings on pure Ti by laser cladding , 2008 .

[5]  F. Quintero,et al.  Laser cladding of SiC/Si composite coating on Si–SiC ceramic substrates , 2008 .

[6]  Jiansong Zhou,et al.  Phase composition and tribological properties of Ti–Al coatings produced on pure Ti by laser cladding , 2007 .

[7]  J. Wang,et al.  Microstructure performance on TIG welding zone of Fe3Al and 18–8 dissimilar materials , 2007 .

[8]  M. Yoshihara,et al.  Oxidation behavior of gamma alloys designed for high temperature applications , 2005 .

[9]  Jiang Xu,et al.  IN-SITU SYNTHETIC TiB2 PARTICULATE REINFORCED METAL MATRIX COMPOSITE COATING ON AA2024 ALUMINUM ALLOY BY LASER CLADDING TECHNOLOGY , 2005 .

[10]  Chuanzhong Chen,et al.  LASER SURFACE MODIFICATION OF TITANIUM ALLOYS — A REVIEW , 2005 .

[11]  Keisuke Uenishi,et al.  Formation of surface layer based on Al3Ti on aluminum by laser cladding and its compatibility with ceramics , 1999 .

[12]  B. Johansson,et al.  The microstructure of reactively sputtered Ti-N films containing the Ti2N phase , 1985 .

[13]  L. Jianing,et al.  Microstructure characteristics of Ti3Al/TiC ceramic layer deposited by laser cladding , 2011 .