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    • 25. 发明申请
    • Magnesium Alloy With Adjustable Degradation Rate
    • 镁合金具有可调节的降解率
    • US20140261911A1
    • 2014-09-18
    • US14203950
    • 2014-03-11
    • DePuy Synthes Products, LLC
    • Thomas ImwinkelriedStefan BeckPeter UggowitzerJoerg Loeffler
    • C22C23/04A61F2/02C22C23/00C22F1/06
    • C22C23/04A61L31/022A61L31/148A61L2400/12C22C23/02C22F1/06
    • An alloy and an implant having a three-dimensional structure based on such alloy. The alloy comprises a MgZnCa alloy containing nanosized precipitates being less noble than the Mg matrix alloy and having a Zn content ranging 0.1 wt. % Zn to 2 wt. % Zn and a calcium content ranging from 0.2 wt. % to 0.5 wt. %, and having less than 0.04 wt. % of one or more other elements with the remainder being Mg. For these micro-alloys, any second phase generated during the solidification process can be completely dissolved by a solution heat treatment. Finely dispersed nanosized precipitates can then be generated by a subsequent aging heat treatment step. These precipitates are used to “pin” the grain boundaries and to prevent the coarsening of the grain structure during further processing to achieve grain sizes below 5 μm.
    • 一种具有基于这种合金的三维结构的合金和植入物。 该合金包括MgZnCa合金,其含有比Mg基合金更贵的纳米尺寸的析出物,Zn含量范围为0.1wt。 %Zn至2wt。 %Zn和钙含量范围为0.2wt。 %至0.5wt。 %,并且具有小于0.04wt。 %的一种或多种其它元素,其余为Mg。 对于这些微合金,在固化过程中产生的任何第二相可以通过固溶热处理完全溶解。 然后可以通过随后的时效热处理步骤产生细分散的纳米尺寸的沉淀物。 这些沉淀物用于“引导”晶界,并且在进一步加工期间防止晶粒结构的粗化,以达到5μm以下的晶粒尺寸。
    • 29. 发明授权
    • Magnesium alloy exhibiting high strength and high ductility and method for production thereof
    • 显示高强度和高延展性的镁合金及其制造方法
    • US07871476B2
    • 2011-01-18
    • US11631373
    • 2005-06-28
    • Toshiji MukaiKazuhiro HonoHidetoshi SomekawaTomoyuki Honma
    • Toshiji MukaiKazuhiro HonoHidetoshi SomekawaTomoyuki Honma
    • C22C23/00
    • C22F1/06C22C23/00C22C23/04C22C23/06
    • A magnesium alloy exhibiting high strength and high ductility, characterized in that it comprises 0.03 to 0.54 atomic % of certain solute atoms belonging to 2 Group, 3 Group or Lanthanoids of the Periodic Table and having an atomic radius larger than that of magnesium and the balanced amount of magnesium, and has a fine crystal grain structure wherein solute atoms having an average crystal grain diameter of 1.5 μm or less and being unevenly present in the vicinity of crystal grain boundaries at a concentration being 1.5 to 10 times that within crystal grains, wherein an atom selected from the group consisting of Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu can be used as the above solute atom; and a method for producing the magnesium alloy. The above magnesium alloy is novel and achieves high strength and high ductility at the same time.
    • 表现出高强度,高延展性的镁合金,其特征在于,其含有属于2族,3族或周期表镧系元素的某些固溶原子的0.03〜0.54原子%,其原子半径大于镁的原子半径,平衡 并且具有细晶粒结构,其中溶质原子的平均晶粒直径为1.5μm以下,并且在晶粒边界附近不均匀地存在于晶粒内的浓度的1.5〜10倍,其中 可以使用选自Ca,Sr,Ba,Sc,Y,La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Th,Dy,Ho,Er,Tm,Yb和Lu中的原子 如上述溶质原子; 镁合金的制造方法。 上述镁合金是新颖的,同时实现高强度和高延展性。