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发明公开
CN101768689A 一种高强超韧低密度镁合金及其制备方法 失效 - 权利终止

一种高强超韧低密度镁合金及其制备方法
摘要：
本发明公开的一种高强超韧低密度超轻镁合金，按重量百分比其组成为：5％～12％的Li、1％～5％的Zn、1％～6％的Y、0％～2％的其它RE，其余为Mg。采用抽真空后氩气保护的方法熔铸合金，再将得到的铸态镁合金锭在气体保护条件下进行热处理，再将该合金挤压或轧制温变形加工，即得到变形加工后的镁合金。本发明提供一种密度低于1.7g/cm3的镁合金，该镁合金不仅有高强度，还具有高的塑性和韧性，能够满足室温变形加工薄板类材料对强度和塑性性能指标的要求。
摘要（英）：

The invention discloses a super-light magnetism alloy with high strength, super toughness and low density, which comprises the following components in percentage by weight: 5-12% of Li, 1-5% of Zn, 1-6% of Y, 0-2% of Re and the balance Mg. The invention adopts an argon protection method to cast alloy after evacuation, then heat treatment is carried out on obtained as-cast magnetism alloy ingot under the condition of gas protection, and then the alloy is extruded or processed by rolling warm deformation so as to obtain the magnetism alloy after deformation processing. The invention provides a magnetism alloy the density of which is less than 1.7g/cm<3>, which has high strength and high plasticity and toughness, and can satisfy the index requirements on strength and plasticity of deformation processing sheet materials at room temperature.

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