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High temperature deformation of magnesium alloy TX32-0.4Al-0.8Si

  • C. Dharmendra
  • , K. P. Rao
  • , N. Hort
  • , K. U. Kainer

    Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

    Abstract

    The effect of aluminum and silicon as micro-alloying elements in TX32 magnesium alloy on its hot deformation behavior has been studied by conducting uniaxial compression tests at various combinations of temperatures and strain rates in the ranges 300-500°C and 0.0003-10 s-1. A processing map has been developed and the effect of processing conditions on deformation behavior has been analyzed. Two processing windows that enable good hot working of the alloy are identified at (1) 390-500°C/0.0003-0.005 s-1 (Domain 1), (2) 430-500°C/0.3-10 s-1 (Domain 2). The kinetic analysis is obeyed in these two domains and the relevant apparent activation energy values are found to be 215 and 170 kJ/mole respectively. These are higher than that for self-diffusion in magnesium suggesting that intermetallic particles present in the matrix generate back stress.
    Original languageEnglish
    Title of host publicationMagnesium Technology
    Pages41-45
    Publication statusPublished - 2013
    EventMagnesium Technology 2013 - TMS 2013 Annual Meeting and Exhibition - San Antonio, TX, United States
    Duration: 3 Mar 20137 Mar 2013

    Publication series

    Name
    ISSN (Print)1545-4150

    Conference

    ConferenceMagnesium Technology 2013 - TMS 2013 Annual Meeting and Exhibition
    PlaceUnited States
    CitySan Antonio, TX
    Period3/03/137/03/13

    Research Keywords

    • Hot deformation
    • Kinetic analysis
    • Mg-Sn-Ca-Al-Si alloy
    • Processing map

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