US1584688A - Magnesium-aluminum alloy - Google Patents
Magnesium-aluminum alloy Download PDFInfo
- Publication number
- US1584688A US1584688A US405865A US40586520A US1584688A US 1584688 A US1584688 A US 1584688A US 405865 A US405865 A US 405865A US 40586520 A US40586520 A US 40586520A US 1584688 A US1584688 A US 1584688A
- Authority
- US
- United States
- Prior art keywords
- magnesium
- alloy
- aluminum
- manganese
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
Definitions
- No Drawing My invention relates to magnesium alloys and one of thetobjects of the invention is to provide an alloy of this metal which will possess a greater resistance to corrosion 5 against theelements than that ordinarily exhibited by commercial magnesium or its alloys.
- Magnesium is one of the lightest of the hard metals. Thisproperty in connection with a goodatensile strength makes it a highly desirable metal where reduction in weight is of prime consideration, as in air and land vehicles.
- One deterrent to its wider use heretofore has been its marked tendency to corrosion even under normal atmospheric conditions; I
- the alloy is prepared by first adding the 5 Application filed August 25, 1920. Serial No..405,865.
- An alloy having a specific gravity approximating that of magnesium, comprising a major quantity of magnesium, a minor quantity of aluminum, and a quantity of manganese not widely different from one per cent, the quantity of aluminum being in excess of the quantity of manganese.
- An alloy having a specific gravity approximating that of magnesium, c0mprising a major quantity of magnesium, a minor quantity of aluminum, and from O.2L% .manganese, the quantity of aluminum being in excess of the quantity of manganese.
- a ternary alloy composed of a main body of magnesium combined with about 1 per cent or less of manganese, and aluminum in an amount greater than that of manganese but substantially less than that. of magnesium- 4.
- amagnesiumaluminum-manganese alloy- which consists in first 'interfusmg the manganese and aluminum and adding this alloy to the magnesium.
Description
Lemma May 11, 1926.
mm s r:
iss ess HERMAN IE. BAKKEN, OF NIAGARA FALLS, NEW YORK, ASSIGNOR 'IO AMERICAN MAG- NESIUM CORPORATION, OF NIAGARA FALLS, NEW YORK, A CORPORATION OF NEW YORK.
MAGNESIUM-ALUMINUM ALLOY.
No Drawing My invention relates to magnesium alloys and one of thetobjects of the invention is to provide an alloy of this metal which will possess a greater resistance to corrosion 5 against theelements than that ordinarily exhibited by commercial magnesium or its alloys. I
Magnesium is one of the lightest of the hard metals. Thisproperty in connection with a goodatensile strength makes it a highly desirable metal where reduction in weight is of prime consideration, as in air and land vehicles. One deterrent to its wider use heretofore has been its marked tendency to corrosion even under normal atmospheric conditions; I
\Vith the object of overcoming this disadvantage, I have discovered that the tendency of this metal or'its alloys to corrode is best overcome when alloyed with manganese. A particular alloy that I have found to be highly resistant to corrosion is magnesium with 8% of aluminum and 1 percent or less of m nganese. -The particular percentage of aluminum used is not a factor in so far as the corrosive properties of the alloy is concerned as other percentages of aluminum might be used with equal beneficial results. The ratio of magnesium 0 and aluminum is determined by other required physical properties of the alloy. \Vhile I have not at this time determined the exact range in the amount of 'manga-' nese that will produce the necessary results, it is obvious that in order to keep the spe cific gravity of the alloy as low as possible, the tendency will be to add as little manganese as possible. Proportions from 0.2% to 1% ofmanganese have been found effective in increasing the resistance to corrosion.
The alloy isprepared by first adding the 5 Application filed August 25, 1920. Serial No..405,865.
1. An alloy, having a specific gravity approximating that of magnesium, comprising a major quantity of magnesium, a minor quantity of aluminum, and a quantity of manganese not widely different from one per cent, the quantity of aluminum being in excess of the quantity of manganese.
2. An alloy, having a specific gravity approximating that of magnesium, c0mprising a major quantity of magnesium, a minor quantity of aluminum, and from O.2L% .manganese, the quantity of aluminum being in excess of the quantity of manganese.
3. A ternary alloy composed of a main body of magnesium combined with about 1 per cent or less of manganese, and aluminum in an amount greater than that of manganese but substantially less than that. of magnesium- 4. An alloy composed of magnesium, 8% of aluminum and 1% or less of manganese.
5. The method of making amagnesiumaluminum-manganese alloy-which consists in first 'interfusmg the manganese and aluminum and adding this alloy to the magnesium.
In testimony whereofI aflix my signature.
HERB/IAN E. BAKKEK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US405865A US1584688A (en) | 1920-08-25 | 1920-08-25 | Magnesium-aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US405865A US1584688A (en) | 1920-08-25 | 1920-08-25 | Magnesium-aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1584688A true US1584688A (en) | 1926-05-11 |
Family
ID=23605559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US405865A Expired - Lifetime US1584688A (en) | 1920-08-25 | 1920-08-25 | Magnesium-aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1584688A (en) |
-
1920
- 1920-08-25 US US405865A patent/US1584688A/en not_active Expired - Lifetime
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