Anti-corrosion coating for magnesium materials
AssigneeDaimlerChrysler AG
InventorsHeike Bommer, Felix Nitschke
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Abstract
Magnesium materials or components made of magnesium materials are protected against corrosion by a surface coating made of an alloy. The protective alloy coating contains a base alloy component A and at least one additive alloying component B. The base alloy component A is either titanium, or zirconium or magnesium. The alloying component B is selected from the following group: alkali metals, alkaline earth metals, rare-earth metals, yttrium, metals of the groups IIb, IIIa, IVa, and Va of the fourth or higher period of the periodic table of elements, and manganese.
Claims4
A magnesium material to be protected comprising a corrosion protection layer made of a corrosion protection alloy composed of at least one alloy base metal and an alloying component, wherein said at least one alloy base metal is selected from the group consisting of titanium, zirconium, and magnesium, wherein said alloying component is at least one additive metal selected from the group consisting of alkali metals, alkaline earth metals, rare earth metals, yttrium, metals from groups 12 to 15 of the fourth or a higher period of the periodic system of elements and manganese, wherein the proportion of the additive metal or metals in the corrosion protective alloy is within the range of 0.2 to 15% by weight, and wherein said corrosion protection alloy based on magnesium contains at least 5% by weight of a metal selected from the group consisting of titanium and zirconium.
Dependencies are inferred from the claim text.