| 摘要 |
PROBLEM TO BE SOLVED: To improve the corrosion resistance and recycling properties of an Mg alloy by surface treatment. SOLUTION: An Mg alloy having a composition containing, as alloy elements, one or more kinds selected from 0.0001 to 10% Al, 0.0001 to 10% Zn, 0.0001 to 1% Mn, and 0.0001 to 1% Si, and the balance Mg with inevitable impurities is immersed into an aqueous solution having a composition containing, as chemical components, each substance of 1 to 300 g sodium chloride, 1 to 400 g magnesium chloride, 0.00001 to 0.1 g magnesium hydroxide, and 0.001 to 500 g sodium hydroxide expressed in terms of mass in 1 L of water, and the balance water with inevitable impurities for 10 s to 36 ks, and is thereafter dried, is heated in the air, and is held at 573 to 873 K for 10 s to 36 ks. COPYRIGHT: (C)2003,JPO
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