粉体押出成形によるマグネシウム合金の機械的特性の改善 Improvement in Mechanical Properties of Magnesium Alloys by Powder Extrusion

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In order to improve the strength of the functional MCM (Mg-Cu-Mn) casting alloy that has been developed as one of damping Mg alloys, the powder extrusion process was applied and the effect of Zr addition was studied using MCM alloy powder mixed with Zr powder. For the powder hot-extruded alloys produced, microstructure characterization was performed using optical microscope and the mechanical properties such as Vickers hardness and bending strength were evaluated. Young's modulus and internal friction were also measured with the free resonance frequency technique. It was found that grain size increased with increasing extrusion temperature and grain size refinement was recognized to occur around Zr particles dispersed in the matrix. Vickers hardness was nearly similar to, or slightly lower than, that of the conventional casting alloys such as AZ91 and AM60, while bending strength and Young's modulus were improved remarkably compared with those casting alloys. The internal friction was the same as that of the conventional damping alloys. Based on the above experimental results, it was concluded that the high performance of the functional MCM alloy could be achieved with the powder extrusion process.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 51(5), 323-329, 2004-05-15

    一般社団法人 粉体粉末冶金協会

参考文献:  35件中 1-35件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10013067924
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    6967611
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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