メカニカルグラインデング処理したAl-7.9%V-4%Fe合金粉末の押出成形と耐熱強度 Extrusion of atomized Al-7.9mass%V-4 mass%Fe powder subjected to mechanical grinding and its elevated-temperature strength

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Mechanical grinding (MG) of gas atomized Al–7.9 mass%V–4mass%Fe alloy powder was performed for various times up to 396 ks with a low energy ball mill. The bulk material with a size of φ8 mm × 300 mm was made of the powder subjected to MG for 72 ks (72 ks–MG powder) by warm extrusion. The gas atomized powder has a spherical shape with an average diameter of about 31 μm and the structure consists of Al, icosahedral and Al<sub>11</sub>V phases. The 72 ks–MG powder has a flattened spherical morphology and the structure consists of icosahedral and Al phases. The extruded bulk material of the 72 ks–MG powder also consists of icosahedral and Al phases and has a high packing density of approximately 100%. The tensile strength (σ<sub>UTS</sub>), plastic elongation (ε<sub>P</sub>), Vickers hardness (HV) and Young's modulus at room temperature for the extruded bulk alloy are 588 MPa, 3.5%, 180 and 83.4 GPa, respectively, and the σ<sub>UTS</sub>, ε<sub>P</sub> and HV at 573 K are 306 MPa, 3.2% and 90, respectively. Thus, the bulk material is concluded to have high stiffiness and high elevated-temperature strength.

収録刊行物

  • 軽金属

    軽金属 47(9), 487-492, 1997-09-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003795890
  • 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
    4304505
  • 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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