Influence of WC Content on Microstructure and Wear Resistance of (Cu-50Mo)-WC Composites

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Abstract:

By using a SPS-30 spark plasma sintering pressing sintering furnace, the Cu-50Mo-WC composites were prepared with four different WC content by spark plasma sintering method (SPS). The wear behavior of the Cu-50Mo-WC composite pin against the QCr0. 5 bronze disc was examined on a pin-on-disc tribotester. The worn surface morphologies of the composite were observed by a scanning electron microscope (SEM). The wear mechanism was investigated briefly.The results show that the WC particles improve the hardness and wear resistance of the composites. The main wear mechanism of the composites is of adhesive wear and abrasive wear. When addition of 1% WC content, the optimal comprehensive properties of the composite is obtained.

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115-119

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October 2014

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