急冷凝固Mg-Ce 基合金の組織と機械的性質 Structures and mechanical properties of rapidly solidified Mg-Ce based alloys

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Mg–Ce alloys with or without additions of Zn and Ca were rapidly solidified and subsequently consolidated to P/M materials by hot extrusion. Metallographic structures and constituent phases of the rapidly solidified flakes and the P/M materials were studied by TEM and XRD. Mechanical properties were examined for the P/M materials at room and elevated temperatures. The solute Ce content was estimated to 5.6 mass% in rapidly solidified Mg–10 mass%Ce binary alloys, which is about 10 times of the maximum solubility limit. For all the alloys, dendritic cell structures consisting of α–Mg and eutectic cell walls were observed in the rapidly solidified flakes, and fine and uniform dispersion of intermetallic compounds was obtained after consolidation. All the P/M materials showed remarkably high specific strength. The highest tensile strength above 550 MPa at room temperature and 350 MPa at 473 K was obtained in the P/M material of Mg–1O mass%Ce–5 mass%Zn alloy.

収録刊行物

  • 軽金属

    軽金属 49(1), 14-18, 1999-01-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002665758
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    3087509
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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