The Effect of the Addition of Strontium and Cerium Modifiers on Microstructure and Mechanical Properties of Hypereutectic Al-Si (LM30) Alloy

    Volume 2, Issue 1

    ISSN: 2165-3992

    CODEN: MPCOAD

    Published Online: 30 August 2013

    Page Count: 12


    Vijeesh, V.
    Dept. of Metallurgical and Materials Engineering, National Institute of Technology, Karnataka, Surathkal, Srinivasnagar, Mangalore

    Ravi, M.
    Light Metals and Composites Division, National Institute for Interdisciplinary Science & Technology (CSIR), Trivandrum,

    Prabhu, K. Narayan
    Dept. of Metallurgical and Materials Engineering, National Institute of Technology, Karnataka, Surathkal, Srinivasnagar, Mangalore

    (Received 17 April 2012; accepted 8 July 2013)

    Abstract

    The present work deals with the melt treatment of LM30 hypereutectic Al-Si alloy using cerium and strontium and the assessment of its effect on microstructure and properties of the alloy. The addition of cerium simultaneously modified both primary and eutectic silicon, leading to an increase in ultimate tensile strength, as well as the wear resistance of the alloy. It was found that the coefficient of thermal expansion of the alloy decreased on modification of the microstructure.


    Paper ID: MPC20120007

    DOI: 10.1520/MPC20120007

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    Author
    Title The Effect of the Addition of Strontium and Cerium Modifiers on Microstructure and Mechanical Properties of Hypereutectic Al-Si (LM30) Alloy
    Symposium , 0000-00-00
    Committee B07