US1744545A - Aluminum alloy - Google Patents
Aluminum alloy Download PDFInfo
- Publication number
- US1744545A US1744545A US350433A US35043329A US1744545A US 1744545 A US1744545 A US 1744545A US 350433 A US350433 A US 350433A US 35043329 A US35043329 A US 35043329A US 1744545 A US1744545 A US 1744545A
- Authority
- US
- United States
- Prior art keywords
- whole
- alloy
- aluminum alloy
- aluminum
- elements
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
Definitions
- the object of this invention is to make an aluminum alloy having certain properties superior to those of any aluminum alloys heretot ore known.
- the alloy is made in manner common, that is to say :to molten commercial aluminum we add alloys each rich in one, or in some cases two, of the required elements.
- the manganese and titanium are added merely to cleanse the particles of the metallic alloy and they disappear wholly or partially in the form of oxide or slag.
- the resultant alloy is harder, the higher the proportion of the metals other than aluminum, but on th other hand it is not so resistant to corrosion, and is less ductile.
Description
Patented Jan. 21, 1930 UNITED STATES PATENT, OFFICE HORACE CAMPBELL HALL, OF LITTLEOVER, DERBY AND TENNYSON FRASER BRAD- BURY, OF DERBY, ENGLAN D, ASSIGNORS T0 ROLLS ROYCE LIMITED, OF DERBY, ENG- LAND ALUMINUM ALLOY in, Drawing. Application filed March 27, 1929, Serial No. 350,433, and in Great Britain April 3, 1923.
The object of this inventionis to make an aluminum alloy having certain properties superior to those of any aluminum alloys heretot ore known.
According to this invention we make an alloy by compounding the elements, and that in relative quantities within the ranges set out below :-nickel, .2 to 1.5% of the whole; magnesium, .2 to 5% of the whole; copper, .5 to 2% of the whole; silicon, .2 to .5% of the whole; iron, .7 to 1.5% of the whole; manganese and titanium up to a total maximum of 25%; aluminum the remainder; only traces of other elements.
The alloy is made in manner common, that is to say :to molten commercial aluminum we add alloys each rich in one, or in some cases two, of the required elements.
The manganese and titanium are added merely to cleanse the particles of the metallic alloy and they disappear wholly or partially in the form of oxide or slag.
The presence of any residue or the total absence of these metals in the ultimate alloy is of no moment.
Were it practicable to be sure that the other component parts were free from impurities and that there would be no impurities from the oxygen of the air and furnace gases, these metals would not need to be added, but in fact, there is always a quantum of impurities, and hence it is desirable that there should be a small resultant residue in the alloy.
Within the ranges prescribed the resultant alloy is harder, the higher the proportion of the metals other than aluminum, but on th other hand it is not so resistant to corrosion, and is less ductile.
It will be obvious that increased lightness is attained by adopting in high proportion of the range of magnesium, this higher content is attended to some extent with increased hardness, lower ductibilit'y and a tendency is on the average comparably superior to the alloys heretofore in use.
What We claim is An aluminum alloy composed-of the elements and that in the relative quantities within the ranges set out below:nickel, .2 to 1.5% of'the whole; magnesium, .2 to 5% of the whole; copper, .5 to 2% of the whole; silicon, .2 to .5 of the whole; iron, .7 to 1.5% of the whole; manganese and titanium up to a total maximum of 25%; aluminum the remainder; only traces of other elements.
In testimony whereof we have hereunto affixed our signatures.
HORACE CAMPBELL HALL.
TENN YSON FRASER BRADBURY.
to surface oxidation in sand castings unless 7 view of lightness, strength, freedom from porosity and oxidation and resistance to corrosion for instance on e osure to sea water x a a
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1744545X | 1928-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1744545A true US1744545A (en) | 1930-01-21 |
Family
ID=10889705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US350433A Expired - Lifetime US1744545A (en) | 1928-04-03 | 1929-03-27 | Aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1744545A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522575A (en) * | 1948-01-23 | 1950-09-19 | Rolls Royce | Forging aluminum alloy |
| US11180839B2 (en) | 2017-10-26 | 2021-11-23 | Ut-Battelle, Llc | Heat treatments for high temperature cast aluminum alloys |
| US11220729B2 (en) | 2016-05-20 | 2022-01-11 | Ut-Battelle, Llc | Aluminum alloy compositions and methods of making and using the same |
| US11242587B2 (en) | 2017-05-12 | 2022-02-08 | Ut-Battelle, Llc | Aluminum alloy compositions and methods of making and using the same |
-
1929
- 1929-03-27 US US350433A patent/US1744545A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522575A (en) * | 1948-01-23 | 1950-09-19 | Rolls Royce | Forging aluminum alloy |
| US11220729B2 (en) | 2016-05-20 | 2022-01-11 | Ut-Battelle, Llc | Aluminum alloy compositions and methods of making and using the same |
| US11242587B2 (en) | 2017-05-12 | 2022-02-08 | Ut-Battelle, Llc | Aluminum alloy compositions and methods of making and using the same |
| US11180839B2 (en) | 2017-10-26 | 2021-11-23 | Ut-Battelle, Llc | Heat treatments for high temperature cast aluminum alloys |
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