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Microstructure Evolution and Its Effect on the Wear Performance of HVOF-Sprayed Conventional WC-Co Coating

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Abstract

In this work, a conventional tungsten carbide 12% cobalt (WC-12Co) coating was deposited by using a liquid fuel JP-8000 high velocity oxyfuel spray system. The properties of the coating namely phase content, microstructure, hardness, porosity, and fracture toughness were examined. The microstructure evolution and its influence on the abrasive wear behavior of the coatings were evaluated in detail by in-situ scanning electron microscopy and a comprehensive model for decarburization of WC has been established using x-ray diffraction and transmission electron microscopy analyses.

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Authors and Affiliations

  1. College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, People’s Republic of China

    Dingfa Fu, Haoqi Xiong & Qun Wang

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  1. Dingfa Fu
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  2. Haoqi Xiong
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  3. Qun Wang
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Correspondence to Qun Wang.

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Fu, D., Xiong, H. & Wang, Q. Microstructure Evolution and Its Effect on the Wear Performance of HVOF-Sprayed Conventional WC-Co Coating. J. of Materi Eng and Perform 25, 4352–4358 (2016). https://doi.org/10.1007/s11665-016-2278-y

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  • DOI: https://doi.org/10.1007/s11665-016-2278-y

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