Microstructure and Corrosion Behaviour of Laser-Clad Double-Ceramic-Layer Composite Coating

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A double-layer composite coating on Q235 steel substrate was prepared using a new developed in situ technology consisting of SHS reaction, laser cladding and metal dusting techniques. A double-layer composite coating consists of the TiO2–TiC ceramic outer layer and the TiC-CNTs cermet inner layer. An excellent bonding was observed among the outer layer, the inner layer and the steel substrate. Corrosion behavior of the coating was investigated and the commercial 304SS was used for comparison. The outer layer exhibited the highest corrosion resistance and 304SS the lowest corrosion resistance, whereas the inner coating exhibited the intermediate corrosion resistance. However, the severe pitting corrosion which was observed in 304SS did not exist for the coating.

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252-256

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February 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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[1] I. Hossein, P.G. Adrian, Distribution and stability of carbon nanotubes during multi-pass friction stir processing of carbon nanotube/aluminum composites, Carbon. 50 (2012) 4744-4749.

DOI: 10.1016/j.carbon.2012.06.012

Google Scholar

[2] H.Z. Wang, X.D. Li, J. Ma, G.Y. Li, T.J. Hu, Multi-walled carbon nanotube-reinforced silicon carbide fibers prepared by polymer-derived ceramic route, Composites Part A. 43 (2012) 317-324.

DOI: 10.1016/j.compositesa.2011.12.007

Google Scholar

[3] P. A Carvalho, R. Vilar, Laser alloying of zinc with aluminum: solidification structures, Surf. Coat. Technol. 91(1997) 158-166.

DOI: 10.1016/s0257-8972(96)03185-4

Google Scholar

[4] W.G. Li, G.J. Zhang, J. Li, Cladding of WC-Cr3C2 Cermet Coating by Laser Controlled Reactive Synthesis, Key Eng. Mater. 368-372 (2008) 1872-1875.

DOI: 10.4028/www.scientific.net/kem.368-372.1872

Google Scholar

[5] H. Ghorhani, A.M. Rshidi, S. Rastegari, S. Mirdamadi, M. Alaei, Mass production of multi-wall carbon nanotubes by metal dusting process with high yield. Mater. Res. Bull. 46 (2011) 716-721.

DOI: 10.1016/j.materresbull.2011.01.021

Google Scholar

[6] Q.L. Wu, J.Q. Zhang, Y.S. Sun , Oxidation behavior of TiC particle-reinforced 304 stainless steel, Corros. Sci. 52 (2010) 1003-1010.

DOI: 10.1016/j.corsci.2009.11.025

Google Scholar

[7] R. Hu, H.T. Li, X.Y. Xue, J.S. Li, H.C. Kou, H. Chang, Effect of Ti on interface wettability and microstructure of C/Cu composites prepared by infiltration, Trans. Nonferrous Met. Soc. China, 18 (2008): 840-843.

Google Scholar

[8] Wu Q. L, Li W. G, Zhong N, Wu G, Wang H. S. Microstructure and wear behavior of laser cladding VC-Cr7C3 ceramic coating on steel substrate, Materials and Design, 2013; 49: 10-8.

DOI: 10.1016/j.matdes.2013.01.067

Google Scholar