Abstract
WCP-reinforced ferrous matrix composites were processed by direct addition of WCP (100–150 μm) and the melt of the matrix alloy to a rotating mold at 1000 rpm. Dry sliding wear behaviors of the composites containing about 80 vol.% of WCP and high-speed steel counterpart were investigated at room temperature and 400 °C against a rotating die steel ring. And wear experiments were performed under loads of 50, 100, and 150 N and a fixed sliding velocity of 30 m/s. Results show that at room temperature, both materials exhibited a marked increase in wear rate with load applied. Wear rates of the composites and high-speed steel under loads of 50, 100, and 150 N at room temperature achieved 1.61 × 10−6, 2.14 × 10−6, 3.56 × 10−6, and 3.11 × 10−6, 23.08 × 10−6, 57.39 × 10−6 g/m, respectively. At a testing temperature of 400 °C, the composites exhibited a marked increase in wear rates and high-speed steel exhibited mild wear (characterized by extremely low wear rates) over the range of loads considered in these experiments. Wear rates of both the composites and high-speed steel at 400 °C achieved 2.42 × 10−6, 5.19 × 10−6, 6.64 × 10−6, and 4.1 × 10−6, 8.92 × 10−6, 26.02 × 10−6 g/m, respectively, under different loads. Finally, the wear-mechanism was discussed in this article.
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Song, Yp., Yu, H., He, Jg. et al. Elevated temperature sliding wear behavior of WCP-reinforced ferrous matrix composites. J Mater Sci 43, 7115–7120 (2008). https://doi.org/10.1007/s10853-008-3027-x
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DOI: https://doi.org/10.1007/s10853-008-3027-x