Properties and behavior of squeeze pressure on aluminum molybdenum DI-supplied composite

  • Authors

    • S Arunkumar
    • M Chandrasekaran
    • T Vinod Kumar
    • V Muthuraman
    2018-06-08
    https://doi.org/10.14419/ijet.v7i2.33.14819
  • Metal Matrix Composite (MMC), AL-SI alloy, squeeze casting, wear testing, Microstructure

  • Abstract

    To develop a metal matrix composite with lubricative properties with the help of various casting process and they are tested for their proper-ties. Casting machine is turned ON. Furnace temperature is set to 850o C. Preheater temperature is set to 180o C. Pathway temperature is set to 550o C. The furnace is allowed to get heated up. Once it gets heated upto 600o C, the A-Si alloy is dropped into the furnace. The alloy gets melted at around 800-850o C. Molybdenum di-sulphide fine powder is preheated and then mixed with the molten metal. Molybdenum di-sulphide is a reinforcement added and it is preheated to increase the wettability. Stainless steel stirrer is used to mix the alloy and graphite well. Stirrer is rotated between 200-300rpm.Once both the alloy and reinforcement gets mixed up into a single red hot molt, it is poured. The molt now leaves from the bottom of the furnace through the pathway. Pathway is maintained at 550o C to avoid solidification of molt in the path. Pathway carries the molt to a die, where it is poured. A squeeze pressure of 30 tonnes and 60 tonnes is given on the die using a piston. Die is split up and the mould is taken out from it. The die, furnace, pathway are coated with a layer of non-stick coating to avoid the sticking of alloy in the walls. The same process is repeated in stir casting, except that, pathway is not needed. The molten alloy is poured directly into the die without any pressure being applied. The die is split and the mould is taken. Coating is done before the next casting.

    Graphite powder and the Al-Si alloy materials are casted using squeeze casting process. Wear strength, tensile strength, flexural strength, impact strength and hardness test for the squeeze casted material is found out. The same materials are casted with the help of the stir casting process and they are compared with the squeeze cast material. Various testing process are to be carried out on the casted material and the results are compared.

     

     

  • References

    1. [1] T.W.CLYNE and P.J.WITHERS. “An introduction to metal matrix compositesâ€, 1st ed., Cambridge University Press, Cambridge, 1993, pp 1-10.

      [2] “Effect of applied pressure on the microstructure and mechanical properties of squeeze- cast aluminium AA6061 alloyâ€, S.SKOLIANOS, DRIOURTSIDIS, THOMAS, XATZIFOTIOU, materials science and engineering, 1997, vol231 A, pp 17-24.

      [3] KARNEZIS P.A. “Microstructure and tensile properties of squeeze cast Sic particulate reinforced Al-7si alloyâ€, materials science and technology, 1998, vol. 17, pp 97-107.

      [4] S.A.PELASEYYED. “Characterization of aluminium/graphite particulate composites synthesized using novel method termed – in situ powder metallurgyâ€, Mater. Sci.Eng. A, 2004, 385, pp 258-266.

      [5] S. RAY, “Review Synthesis of Cast Metal Matrix Particulate Compositesâ€, J. Mater. Sci., 1993, 28(20), pp5397–5413.

      [6] SARAVANABHAVAN. “Synthesis, Characterization and Mechanical Behavior of Nickel Coated Graphite on Aluminum Matrix Compositeâ€, International Journal of Research in Engineering and Technology, 2013 vol 02, pp. 749 -755.

      [7] YOUNG– HO SEO, CHUNG GIL KANG. “ The effect of applied pressure on particle dispersion characteristics and mechanical properties in melt stirring squeeze cast Sicp / Al composite, Journal of materials processing techniqueâ€,1995 vol 55,pp. 370 – 379.

      [8] MENEZES P L, ROHATGI LOVELL P.K,Self-Lubricating Behavior of Graphite Reinforced Metal Matrix Composites, in: Nosonovsky. N, Bhushan .B (Eds.), Green Tribology, Springer, Berlin Heidelberg 2012, 445–480.

      [9] SURAPPA M.K, ROHATGI P.K, Preparation and properties of cast aluminium-ceramic particle composites, Journal of Materials Science, 16 (1981), 983–993.

      [10] ROHATGI .P, Cast Metal Matrix Composites: Past, Present and Future, Transactions of the American Foundry Society, 109 (2001), 1–25.

      [11] RUCH P.W, O. BEFFORT, KLEINER.S, WEBER.L Selective interfacial bonding in Al(Si)–diamond composites and its effect on thermal conductivity, Composites Science and Technology, 66 (2006), 2677–2685.

      [12] BAI B.N.P, E. S. DWARAKADASS, S. K. BISWAS, Scanning electron microscopy studies of wear in LM13 and LM13-graphite particulate composite, Wear, 76 (1982), 211Author,â€Title of the Paperâ€, Journal name, Vol.X, No.X, (200X), pp.XX-XX, available online: http://xxx, last visit:28.02.2013.

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  • How to Cite

    Arunkumar, S., Chandrasekaran, M., Vinod Kumar, T., & Muthuraman, V. (2018). Properties and behavior of squeeze pressure on aluminum molybdenum DI-supplied composite. International Journal of Engineering & Technology, 7(2.33), 496-502. https://doi.org/10.14419/ijet.v7i2.33.14819

    Received date: 2018-06-30

    Accepted date: 2018-06-30

    Published date: 2018-06-08