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EffectSofSNiScontentSonStheSmicrostructureSand propertiesSofSWC–Ni composites prepared by electroless plating and powder metallurgy
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School of Materials Science and Engineering,Hefei University of Technology,School of Materials Science and Engineering,Hefei University of Technology,School of Materials Science and Engineering,Hefei University of Technology,Department of Mechanical Engineering,Taizhou University,Department of Mechanical Engineering,Taizhou University,School of Materials Science and Engineering,Hefei University of Technology

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    Abstract:

    WC–Ni composite powders have been prepared by electroless plating with a simplified chemical method. The original WC powders, pretreated WC powders, WC–Ni powders and surface of WC–Ni composites, as well as their fracture cross-sections, were analyzed by FESEM. EDS and XRD were performed to identify the composition. Different contents of Ni doping WC composites were investigated. The relative density and properties of the WC–Ni composite were also discussed. Results show the WC powders were uniformly covered by Ni coatings. After powder metallurgy, the fabricated composites performed a well-dispersed surface morphology. And the increasing Ni content enhanced bending strength without reducing excessive hardness, which involved the uniformity of Ni phase in the crystal boundary of WC. Trans-granular fractures were observed on the surface of the WC–Ni composite because of the uniformity of binder phase (Ni).

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[Hongyu Chen, Zhaocheng Wang, Laima Luo, Liu Zhu, Zhibiao Tu, Yucheng Wu. EffectSofSNiScontentSonStheSmicrostructureSand propertiesSofSWC–Ni composites prepared by electroless plating and powder metallurgy[J]. Rare Metal Materials and Engineering,2017,46(10):2820~2824.]
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History
  • Received:November 18,2015
  • Revised:March 24,2016
  • Adopted:April 26,2016
  • Online: December 01,2017
  • Published: