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US 2008/0175744 A1Published application
Magnesium alloys
OwnerTetsuichi Motegi, Yosuke Tamura +1inventors
InventorsTetsuichi Motegi, Yosuke Tamura, Yukio Sanpei
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Abstract
A casting heat-resistance Mg alloy improved in heat resistance without relying upon expensive RE contains Cu. More specifically, it contains Al (8.0 weight %), Cu (1.0-5.0 weight %), Zn (2.0 weight %), Be (0.01 weight %) and Mg (the rest). The alloy can be prevented from deteriorating in corrosion resistance by adjusting the added amount of Cu to 1.0-1.5 weight %. The corrosion resistance of the alloy can be improved more by adding 0.5 to 1.0 weight % Mn as well.
Claims14
A casting Mg alloy comprising:
- a Mg—Al based alloy containing approximately 5.0 through 9.0 weight % Al;
- and
- Cu added to the Mg—Al based alloy.
A casting Mg alloy comprising:
- a Mg—Al based alloy;
- and
- approximately 1.0 through 1.5 weight % Cu, approximately 2.0 weight % Zn and approximately 0.01 weight % Be that are added to the Mg—Al based alloy.
A casting Mg alloy comprising:
- a Mg—Al based alloy;
- and
- approximately 1.0 through 1.5 weight % Cu, approximately 2.0 weight % Zn, approximately 0.01 weight % Be and approximately 0.25 through 1.0 weight % Mn that are added to the Mg—Al based alloy.
Dependencies are inferred from the claim text.