Advanced Mg–Al–Ca Alloys with Combined Properties of High Thermal Conductivity, High Mechanical Strength and Non-Flammability

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  • Kawamura Yoshihito
    Magnesium Research Center, Kumamoto University
  • Ougi Kazuki
    Materials Science and Engineering, Faculty of Engineering, Kumamoto University
  • Inoue Shin-ichi
    Magnesium Research Center, Kumamoto University
  • Kiguchi Takanori
    Magnesium Research Center, Kumamoto University
  • Takafuji Makoto
    Department of Materials Science and Applied Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Ihara Hirotaka
    Department of Materials Science and Applied Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Shih Donald S.
    Magnesium Research Center, Kumamoto University

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Abstract

<p>High thermal conductivity, high strength and non-flammability have successfully been achieved concurrently for the first time in Mg–4.5Al–2.5Ca, Mg–5Al–3Ca, Mg–6Al–4Ca, and Mg–4Al–2Ca–0.03Be (at%) alloys, which are produced by hot extrusion of the heat-treated cast alloys. These alloys consist of α-Mg, and C36, C14 and C15 compounds, and exhibit a high thermal conductivity of 111–119 Wm−1K−1, a high ignition temperature of 1343–1408 K and a high tensile yield strength of 318–363 MPa.</p>

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 63 (2), 118-127, 2022-02-01

    The Japan Institute of Metals and Materials

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