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Effect of solid lubricants on friction and wear behaviour of alloyed gray cast iron

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Abstract

Friction and wear behaviour of MoS2, boric acid, graphite and TiO2 at four different sliding speeds (1.0, 1.5, 2.0, 2.5 m/s) has been compared with dry sliding condition. MoS2 and graphite show 30 to 50% reduction in mass loss compared to other lubricants at all sliding speeds. Friction coefficient reduces with increase in sliding speeds for all the conditions. Friction coefficient of dry as well as lubricant coated samples varies from 0.2 to 0.55 with MoS2 showing the lowest value (0.2). Boric acid and TiO2 coated samples show high friction coefficients at higher sliding speeds due to poor lubricity and adherence. This could also be due to sliding resistance offered by lubricant coated samples with predominant asperities interaction. MoS2 and graphite coated samples also generated lowest frictional temperature compared to other conditions.

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Authors and Affiliations

  1. Advanced Engineering Department, Ashok Leyland Technical Centre, Vellivoyalchvadi, Chennai, 600103, India

    ARAVIND VADIRAJ & V S SREENIVASAN

  2. Metallurgical and Materials Engineering Department, Indian Institute of Technology Madras, Chennai, 600036, India

    M KAMARAJ

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  1. ARAVIND VADIRAJ
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  2. M KAMARAJ
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  3. V S SREENIVASAN
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Correspondence to ARAVIND VADIRAJ.

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VADIRAJ, A., KAMARAJ, M. & SREENIVASAN, V.S. Effect of solid lubricants on friction and wear behaviour of alloyed gray cast iron. Sadhana 37, 569–577 (2012). https://doi.org/10.1007/s12046-012-0061-9

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  • DOI: https://doi.org/10.1007/s12046-012-0061-9

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