公开(公告)号：US06193817B1

公开(公告)日：2001-02-27

申请号：US08875809

申请日：1997-08-05

申请人： John Frederick King ,  Paul Lyon ,  Kevin Nuttall

发明人： John Frederick King ,  Paul Lyon ,  Kevin Nuttall

IPC分类号： C22C2306

CPC分类号： C22C23/06

摘要： A magnesium base alloy for high pressure die casting (HPDC), providing good creep and corrosion resistance, comprises: at least 91 weight percent magnesium; 0.1 to 2 weight percent of zinc; 2.1 to 5 percent of a rare earth metal component; 0 to 1 weight percent calcium; 0 to 0.1 weight percent of an oxidation inhibiting element other than calcium (e.g., Be); 0 to 0.4 weight percent zirconium, hafnium and/or titanium; 0 to 0.5 weight percent manganese; no more than 0.001 weight percent strontium; no more than 0.05 weight percent silver and no more than 0.1 weight percent aluminum; any remainder being incidental impurities. For making prototypes, gravity (e.g. sand) cast and HPDC components from the alloy have similar mechanical properties, in particular tensile strength. The temperature dependence of the latter, although negative, is much less so than for some other known alloys.

摘要翻译： 用于高压压铸（HPDC）的镁基合金，提供良好的蠕变和耐腐蚀性，包括：至少91重量％的镁; 0.1〜2重量％的锌; 2.1〜5％的稀土金属成分; 0至1重量％的钙; 0〜0.1重量％的除钙之外的氧化抑制元素（例如Be）; 0至0.4重量％的锆，铪和/或钛; 0至0.5重量％的锰; 不超过0.001重量％的锶; 不超过0.05重量％的银和不超过0.1重量％的铝; 任何剩余部分是杂质。 为了制造原型，来自合金的重力（例如砂）铸造和HPDC组分具有相似的机械性能，特别是拉伸强度。 后者的温度依赖性虽然是负的，但远低于一些其他已知的合金。