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    • 6. 发明专利
    • Magnesium alloy material, and method for producing the same
    • 镁合金材料及其制造方法
    • JP2008127639A
    • 2008-06-05
    • JP2006314907
    • 2006-11-21
    • Kobe Steel LtdKumamoto UnivNissan Motor Co Ltd国立大学法人 熊本大学日産自動車株式会社株式会社神戸製鋼所
    • NAKADA MAMORUYAMADA YUICHIITAKURA KOJIOKADA YOSHIOSANBE TAKAHIROKAWAMURA YOSHIHITOYAMAZAKI TOMOAKI
    • C22C23/06C22C23/04C22F1/00C22F1/06
    • PROBLEM TO BE SOLVED: To provide a magnesium alloy material having excellent mechanical properties, and having excellent dimensional precision in a high temperature atmosphere, and to provide a method for producing the same.
      SOLUTION: The magnesium alloy material is composed of an Mg-Zn-Gd based alloy comprising, by atom, 0.5 to 3% Zr and 1 to 5% Gd, and the balance Mg with inevitable impurities, and comprises Mg
      5 Gd and/or Mg
      7 Gd in the structure, and in which the area ratio of Mg
      3 Gd and long period stacked structure crystallized out or precipitated in grain boundaries is ≥30%. Further, the method for producing the magnesium alloy material comprises: a melt casting stage where an Mg-Zn-Gd based alloy is melted and cast, so as to obtain a cast material; a plastic working stage where the cast material is subjected to plastic working, so as to produce the worked material; and a heat treatment stage where the worked material is subjected to heat treatment so as to be held at 200 to 300°C for ≥20 hr.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供具有优异的机械性能并且在高温气氛中具有优异的尺寸精度的镁合金材料,并提供其制造方法。 解决方案:镁合金材料由Mg-Zn-Gd基合金组成,其包含原子为0.5-3%Zr和1至5%Gd,余量为Mg与不可避免的杂质,并且包含Mg 5 Gd和/或Mg 7 Gd,并且其中Mg 3 Gd和长周期堆叠结构的面积比结晶出或沉淀 晶界≥30%。 此外,镁合金材料的制造方法包括:熔融浇铸阶段,其中熔融并铸造Mg-Zn-Gd基合金,以获得铸造材料; 塑料加工台,其中铸造材料进行塑性加工,以产生加工材料; 以及加热材料进行热处理以在200〜300℃保持≥20小时的热处理阶段。 版权所有(C)2008,JPO&INPIT