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Effect of alloy components on the performance characteristics of antifriction graphite-bronze powder material

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Powder Metallurgy and Metal Ceramics Aims and scope

The paper examines the effect of nickel and phosphorus on the performance characteristics of antifriction graphite-bronze powder materials under high pressures (to 20 MPa), at substantial sliding velocities (1–2 m/sec), and with a liquid lubricant supplied from an oil-impregnated felt pad. It is established that Cu-Ni-P-C graphite bronze of the optimal composition has a friction coefficient of 0.028–0.045 and can perform till 150°C in the above conditions. The material is microheterogeneous: the bearing structural component is α solid solution of nickel in copper with the hardening phase being evenly distributed along its boundaries (Cu3P mesh with inclusions of phosphide eutectic (Cu-Ni) + Cu3P); the antifriction structural component represents graphite inclusions evenly distributed in the material matrix.

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Authors and Affiliations

  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine

    O. I. Fushchich & V. T. Varchenko

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  1. O. I. Fushchich
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  2. V. T. Varchenko
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Correspondence to O. I. Fushchich.

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Translated from Poroshkovaya Metallurgiya, Vol. 47, No. 9–10 (463), pp. 68–76, 2008.

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Fushchich, O.I., Varchenko, V.T. Effect of alloy components on the performance characteristics of antifriction graphite-bronze powder material. Powder Metall Met Ceram 47, 557–562 (2008). https://doi.org/10.1007/s11106-008-9058-7

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  • DOI: https://doi.org/10.1007/s11106-008-9058-7

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