Magnesium alloy with excellent ignition resistance and mechanical properties, and method of manufacturing the same

US9822432B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9822432-B2
Application numberUS-201113511015-A
CountryUS
Kind codeB2
Filing dateOct 4, 2011
Priority dateJan 11, 2011
Publication dateNov 21, 2017
Grant dateNov 21, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A magnesium alloy that forms a stable protective film on the surface of molten metal, having excellent ignition resistance restricting natural ignition of a chip thereof as well as having excellent strength and ductility, so that the Mg alloy can be melted and cast in the air or a common inert atmosphere. The magnesium alloy includes, by weight, 7.0% or greater but less than 11% of Al, 0.05% to 2.0% of Ca, 0.05% to 2.0% of Y, greater than 0% but not greater than 6.0% of Zn, and the balance of Mg, and the other unavoidable impurities. The total content of the Ca and the Y is equal to or greater than 0.1% but less than 2.5% of the total weight of the magnesium alloy.

First claim

Opening claim text (preview).

The invention claimed is: 1. A magnesium alloy manufactured by melt casting, the magnesium alloy consisting of, by weight, 7.0% or greater but less than 9.5% of Al, 0.05% to 0.58% of Ca, 0.05% to 0.4% of Y, greater than 0% but less than 1.2% of Zn, greater than 0% but not greater than 1.0% of Mn, a balance of Mg, and other unavoidable impurities, and an oxide layer including a CaO and Y 2 O 3 layer disposed on the magnesium alloy, and a MgO and CaO layer disposed on the CaO and Y 2 O 3 layer, wherein a total content of the Ca and the Y is equal to or greater than 0.1% but less than 0.98% of a total weight of the magnesium alloy. 2. The magnesium alloy of claim 1 , wherein the total content of the Ca and the Y is equal to or greater than 0.1% but less than 0.7% of the total weight of the magnesium alloy.

Assignees

Inventors

Classifications

  • Casting aluminium or magnesium {(no material; see B22D21/007)} · CPC title

  • C22C23/02Primary

    with aluminium as the next major constituent · CPC title

  • Special casting characterised by the nature of the product (B22D15/02, B22D17/16, B22D19/00 take precedence; casting stereotype plates B41D3/00) · CPC title

  • by melting {(C22C1/1036 takes precedence)} · CPC title

  • with zinc or cadmium as the next major constituent · CPC title

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What does patent US9822432B2 cover?
A magnesium alloy that forms a stable protective film on the surface of molten metal, having excellent ignition resistance restricting natural ignition of a chip thereof as well as having excellent strength and ductility, so that the Mg alloy can be melted and cast in the air or a common inert atmosphere. The magnesium alloy includes, by weight, 7.0% or greater but less than 11% of Al, 0.05% to…
Who is the assignee on this patent?
Kim Young Min, Kim Ha Sik, You Bong Sun, and 2 more
What technology area does this patent fall under?
Primary CPC classification C22C23/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Nov 21 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).