THE EFFECT OF CARBURIZATION OF ASTM A36 STEEL SUBSTRATE IN IMPROVING WEAR PROPERTIES OF PLASMA SPRAYED WC–12%Co COATING

Thermally sprayed coating is commonly used to modify the surface to improve the mechanical properties of the substrates to meet their functional requirements. Numerous research works were carried out to assess the suitability of the WC–Co coating for industrial applications using thermal spray process. Meanwhile, few researchers expressed about the deterrent effect of the decarburization on mechanical properties of the coating due to processing at high temperature in thermal spray process which reduces the efficiency of the coating process. In this research work, coating of WC–12%Co powder over ASTM A36 steel substrate through plasma spray process was considered to investigate the effect of introducing the carburization process on wear properties of the resultant coating. Carburization process was introduced on the ASTM A36 steel substrate before the application of the plasma spray coating to compensate the loss of carbon during the process. Characterization of the deposited coating was done by scanning electron microscope, X-ray diffraction, hardness, corrosive resistivity test and wear tests. The results of the tests indicated that introduction of the carburization process remarkably increased the hardness of the coating and corrosive resistivity besides improving the wear resistance.

[1]  B. Liu,et al.  Influence of carburization on oxidation behavior of High Nb contained TiAl alloy , 2015 .

[2]  J. H. Potgieter,et al.  Tribological and Corrosion Behavior of HVOF-Sprayed WC-Co-Based Composite Coatings in Simulated Mine Water Environments , 2015 .

[3]  M. Sohi,et al.  Effect of bond coat and post-heat treatment on the adhesion of air plasma sprayed WC-Co coatings , 2015 .

[4]  N. Fréty,et al.  Effects of the dispersion time on the microstructure and wear resistance of WC/Co-CNTs HVOF sprayed coatings , 2014 .

[5]  Hui-di Zhou,et al.  Effect of Processing Parameters on Properties of Plasma Sprayed CuAl Coating , 2014 .

[6]  H. Salimijazi,et al.  Parametric Study of Residual Stresses in HVOF Thermally Sprayed WC–12Co Coatings , 2014 .

[7]  Yang Li,et al.  Parameters Optimization for Machining Optical Parts of Difficult-To-cut Materials by Genetic Algorithm , 2014 .

[8]  X. Qi,et al.  Microstructure and wear behaviors of WC–12%Co coating deposited on ductile iron by electric contact surface strengthening , 2013 .

[9]  S. Ghadami,et al.  Structural and oxidation behavior of atmospheric heat treated plasma sprayed WC–Co coatings , 2013 .

[10]  C. Su,et al.  Wear resistance and microstructural properties of Ni–Al/h-BN/WC–Co coatings deposited using plasma spraying , 2013 .

[11]  A. R. Daud,et al.  Effects of plasma spray parameters on TiO2-coated mild steel using design of experiment (DoE) approach , 2013 .

[12]  N. Sacks,et al.  Effect of substrate on the 3 body abrasion wear of HVOF WC-17 wt.% Co coatings , 2012 .

[13]  V. Rajinikanth,et al.  An investigation of sliding wear behaviour of WC–Co coating , 2011 .

[14]  E. Sánchez,et al.  Hardness and Young's modulus distributions in atmospheric plasma sprayed WC-Co coatings using nanoindentation , 2011 .

[15]  Kanchan Kumari,et al.  Effect of microstructure on abrasive wear behavior of thermally sprayed WC–10Co–4Cr coatings , 2010 .

[16]  S. I. Kwun,et al.  A study on powder mixing for high fracture toughness and wear resistance of WC―Co―Cr coatings sprayed by HVOF , 2010 .

[17]  Zhen-hua Chen,et al.  Performance of abrasive wear of WC-12Co coatings sprayed by HVOF , 2009 .

[18]  Q. Ruan,et al.  Improvement in tribological properties of atmospheric plasma-sprayed WC–Co coating followed by Cu electrochemical impregnation , 2009 .

[19]  S. Şahin,et al.  Wear Behavior of Plasma-Sprayed Al-12Si/SiC Composite Coatings under Dry and Water-Lubricated Sliding , 2009 .

[20]  G. Gou,et al.  Characteristics of nano particles and their effect on the formation of nanostructures in air plasma spraying WC–17Co coating , 2009 .

[21]  S. Kuroda,et al.  Evaluation of HVOF-sprayed WC–Co coatings for wood machining , 2008 .

[22]  S. Dong,et al.  Sliding wear behavior of the supersonic plasma sprayed WC-Co coating in oil containing sand , 2008 .

[23]  O. Culha,et al.  Thermal stress analysis of HVOF sprayed WC-Co/NiAl multilayer coatings on stainless steel substrate using finite element methods , 2007 .

[24]  A. K. Maiti,et al.  Effect of adding WC powder to the feedstock of WC-Co-Cr based HVOF coating and its impact on erosion and abrasion resistance , 2007 .

[25]  W. Tian,et al.  Wear resistance of TiAl intermetallics by plasma alloying and plasma carburization , 2007 .

[26]  Qiaoqin Yang,et al.  Sliding wear behavior of WC–12% Co coatings at elevated temperatures , 2006 .

[27]  Hua Li,et al.  Microstructure modifications and phase transformation in plasma-sprayed WC–Co coatings following post-spray spark plasma sintering , 2005 .

[28]  L. Looney,et al.  Residual stress in HVOF thermally sprayed thick deposits , 2004 .

[29]  I. Roman,et al.  WC-Co coatings deposited by the electro-thermal chemical spray method , 2000 .

[30]  J. Mateos,et al.  Tribological behaviour of plasma-sprayed WC coatings with and without laser remelting , 2000 .

[31]  Petri Vuoristo,et al.  Thermal Spray Coating Processes , 2014 .

[32]  P. Shipway,et al.  Microscale abrasion–corrosion behaviour of WC–Co hardmetals and HVOF sprayed coatings , 2005 .