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发明公开
CN107723546A 自来水快速腐蚀的韧化镁合金及其构件的制造方法 无效 - 驳回

自来水快速腐蚀的韧化镁合金及其构件的制造方法
摘要：
本发明属于金属材料技术领域，公开了一种自来水快速腐蚀的韧化镁合金及其构件的制造方法；所述镁合金各组分及其重量百分比含量为：Zn2.0~4.0%，Gd0~2.5%，Y0~1.0%，Cu0.4~1.0%，Ni、Fe、Ga、In等混合反应促进元素（MRAE）或单独Ni的总含量6.0~8.0%，其中Ni占MRAE总量不低于95%，Mg为余量，杂质元素Be、Zr、Ca的总重量百分比小于0.01%。与现有技术相比，采用本发明所述镁合金制造的构件，可在自来水中快速腐蚀，常温下自来水中腐蚀速率可达40mg/cm2·h以上，在加热电解质条件下腐蚀速率最高可达600 mg/cm2·h，同时还具备较好的韧性，适合应用于对结构材料有快速腐蚀要求的工业领域，如采矿工业。
摘要（英）：

The invention belongs to the technical field of metal materials, and discloses a toughened magnesium alloy rapidly being corroded by running water and a manufacturing method of a component of the toughened magnesium alloy. The magnesium alloy comprises the components of, by weight, 2.0-4.0% of Zn, 0-2.5% of Gd, 0-1.0% of Y, 0.4-1.0% of Cu, and 6.0-8.0% of the total content of a hybrid reaction promoting element (MRAE) including Ni, Fe, Ga, In and the like or the total content of single Ni, wherein Ni accounts for no less than 95% of the total content of the MRAE, Mg is the balance, and the total weight percentage of the impurity elements of Be, Zr and Ca is less than 0.01%. Compared with the prior art, the component manufactured by adopting the magnesium alloy can be rapidly corroded in the running water, the corrosion rate in the running water at the room temperature can reach above 40 mg/cm2.h, the corrosion rate under an electrolyte heating condition can reach as high as 600 mg/cm2.h, meanwhile the component has good toughness, is suitable for being applied to industrial fields, such as a mining industry, which have rapid corrosion requirements for structural materials.

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