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发明公开
CN103160721A 一种高硬度耐热镁合金 无效 - 撤回

一种高硬度耐热镁合金
摘要：
一种高硬度耐热镁合金，其特征在于：所述合金的组分及质量百分比为Al：5%，Sn：2%，Ca：1%～5%，杂质含量Fe≤0.005%，Cu≤0.015%，Ni≤0.002%，余量为Mg。本发明通过联合加入Al、Sn和Ca元素，以生成Mg2Sn、Mg2Ca、Al2Ca和CaMgSn高温强化相，使合金具有硬度高与耐热性好等特性。与现有的耐热镁合金相比，本发明合金具有良好的室温及高温性能，且生产成本低，效率高，可广泛应用于商业部件，包括汽车零部件、电子产品部件及航天航空用部件。
摘要（英）：

The invention discloses a high-hardness heat-resistant magnesium alloy. The alloy is characterized by comprising the following components in percent by mass: 5% of Al, 2% of Sn, 1-5% of Ca, not greater than 0.005% of impurity Fe, not greater than 0.015% of impurity Cu, not greater than 0.002% of impurity Ni, and the balance of Mg. According to the alloy disclosed by the invention, the high-temperature strengthening phases of Mg2Sn, Mg2Ca, Al2Ca and CaMgSn are generated by adding Al element, Sn element and Ca element together, so that the alloy has the characteristics of being high in hardness, good in heat resistance, and the like. Compared with the existing heat-resistant magnesium alloy, the alloy disclosed by the invention is good in room-temperature performance and high-temperature performance, low in production cost, high in efficiency, and capable of being widely applied to commercial components comprising automobile parts, electronic product components and aerospace components.

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