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Study of machinable SiC/Gr/Al composites

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Abstract

The effect of flaky graphite particles [with volume fraction (vf) 3–7%] on machinability and mechanical properties of SiC/Al composites were investigated. Results showed that the machinability was improved greatly with the increasing vf of graphite particles. When the vf of graphite particles was 7%, the tool life was prolonged by 130%, and the tensile strength and elastic modulus of SiC/Gr/Al composite were 365 MPa and 144 GPa, respectively. The presence of flake graphite particle acted as solid lubrication and promoted chip formation during cutting, resulting in an improved machinability.

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Authors and Affiliations

  1. Center for Metal Matrix Composites Engineering Technology, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China

    Jinfeng Leng, Longtao Jiang, Qiang Zhang, Gaohui Wu & Dongli Sun

  2. Northeast Light Alloys Company Ltd., Harbin, Heilongjiang, 150060, China

    Qingbo Zhou

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  1. Jinfeng Leng
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  2. Longtao Jiang
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  3. Qiang Zhang
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  4. Gaohui Wu
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  5. Dongli Sun
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  6. Qingbo Zhou
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Correspondence to Jinfeng Leng.

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Leng, J., Jiang, L., Zhang, Q. et al. Study of machinable SiC/Gr/Al composites. J Mater Sci 43, 6495–6499 (2008). https://doi.org/10.1007/s10853-008-2974-6

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  • DOI: https://doi.org/10.1007/s10853-008-2974-6

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