In-Situ Synthesized WC Particles Reinforced Fe-Based Composite Coating by Argon Arc Cladding with Tungsten Powder

Yi Feng Xiao; Tan Ming; Ling Li Peng; Jian Xun Gong; Yue Hui He

doi:10.4028/www.scientific.net/AMR.712-715.378

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In-Situ Synthesized WC Particles Reinforced Fe-Based Composite Coating by Argon Arc Cladding with Tungsten Powder
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In-Situ Synthesized WC Particles Reinforced Fe-Based Composite Coating by Argon Arc Cladding with Tungsten Powder

Abstract:

In-situ synthesized WC particles reinforced Fe-based composite coating was prepared by argon arc cladding on Q235 with mixture of tungsten powders, graphite and iron powders mainly. Microstructures of coating were investigated using SEM, EDS and XRD. Micro-hardness and wear resistance were also studied. The result showed that the main phases of coating were WC, Fe₃W₃C, martensite and residual austenite. The WC particles were well distributed in matrix and appeared significant growth and reunion from bottom to top of coating. Hardness of the coating ranged between HV_0.2 1102.2 to 1863.5. The wear loss of Q235 steel was 37.2 times than that of the coating.