Effect of pouring method on wear resistance of WCp/Fe composites
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    Abstract:

    In order to find a more suitable wear-resistant material forming method for current industrial applications, WCp/Fe composites were prepared by the lost foam casting process, and the effects of the pouring method on the hardness and wear resistance of composites were studied. The results show that the hardness and wear resistance of the composite samples prepared by top pouring, gap pouring and bottom pouring are improved significantly after adding WC particles of different sizes. Compared with the filling process of top pouring and bottom pouring, the filling process of gap pouring is more stable, the hardness and wear resistance of the samples are higher, and the hardness and wear resistance of the samples increase with the decrease of WC particle size. When the WC particle size is 5.5 μm(2 500 mesh), the hardness reaches HRC 50, and the wear resistance increases by 2.21 times. The changes of hardness and wear resistance of the composite samples prepared by different pouring methods can provide a reference for the industrial production and application of WCp/Fe composites in lost foam casting.

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LI Tiegong, MA Guobin, WANG Juan, LI Xin, TAN Jianbo. Effect of pouring method on wear resistance of WCp/Fe composites[J]. Journal of Hebei University of Science and Technology,2020,41(3):281-288

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History
  • Received:April 02,2020
  • Revised:May 12,2020
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  • Online: July 06,2020
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