US2126010A - Magnesium alloy - Google Patents
Magnesium alloy Download PDFInfo
- Publication number
- US2126010A US2126010A US102048A US10204836A US2126010A US 2126010 A US2126010 A US 2126010A US 102048 A US102048 A US 102048A US 10204836 A US10204836 A US 10204836A US 2126010 A US2126010 A US 2126010A
- Authority
- US
- United States
- Prior art keywords
- magnesium
- per cent
- silver
- aluminium
- alloys
- 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
- the invention is based upon the observation I that by the inclusion in magnesium alloys rich in. 5 magnesium of both aluminum and silver in proportions within the limits stated below in the presence or absence of certain other elements, as
- manganese, zinc or calcium products which retain or develop stress resisting properties at temperatures above atmospheric temperature may be obtained.
- the invention consists, broadly, therefore, in
- the invention further extends to magnesium alloys containing the pair of metals aluminium and silver and magnesium inproportions between the limits stated, in association with a proportion of one or more oi the elements, manganese, zinc Normally the proportion of manganese alone may be up to about 4 per cent. and the proportion of zinc or calcium alone may be up to about 6 percent. of each of these elements.
- the following particulars are given to iilustrate the composition of certain alloys withv in the scope of the invention and the properties thereof:
- alloys including the pair of metals aluminium and silver is conveniently eifected by melting magnesium or a magnesium rich alloy under a suitable flux and then adding the aluminium and silver in suitable quantities 3 and in the case where more complex alloys are to be produced by adding aluminium and silver together with manganese, calcium or zinc either as metals or as magnesium rich alloys to the molten magnesium.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
' 2 or calcium.
Patented Aug. 9, 1938 um'rso STATE 5 PATENT orrics- MAGNESIUM QALLOY John Leslie Haughton and William Eliezer Prytherch, Teddington, England No Drawing.
Application September 22, 1936,
Serial No. 102,048. In Great Britain October '1,
in magnesium.
The invention is based upon the observation I that by the inclusion in magnesium alloys rich in. 5 magnesium of both aluminum and silver in proportions within the limits stated below in the presence or absence of certain other elements, as
for instance one or more of the following, namely,
manganese, zinc or calcium products which retain or develop stress resisting properties at temperatures above atmospheric temperature may be obtained.
The invention consists, broadly, therefore, in
magnesium alloys and particularly magnesium alloys rich -in inagnesium containing from 6 to 8 per cent. of aluminium and 1.5.to 3 per cent.
of silver, the balance consisting of magnesium in an amount not less than '79 per cent. of the alloy.
The invention further extends to magnesium alloys containing the pair of metals aluminium and silver and magnesium inproportions between the limits stated, in association with a proportion of one or more oi the elements, manganese, zinc Normally the proportion of manganese alone may be up to about 4 per cent. and the proportion of zinc or calcium alone may be up to about 6 percent. of each of these elements. The following particulars are given to iilustrate the composition of certain alloys withv in the scope of the invention and the properties thereof:
. Magnesium rich alloys containing aluminium between 6 per cent. and 8 per cent. and silver between 1.5 per cent. and 2.5 per cent., the balance being magnesium, resist stress up to temperatures up to at least 100 0., thus for instance an alloy having the following. nominal composition, 40 namely, aluminium 7.5 per cent., silver 2 per cent., the balance being magnesium, gave the. following results when subjected to tensile stress: 1
Temperatures Tons/sq. in.
The above detailed particulars refer to ternary alloys which in addition to the essential pair of elements aluminium' and silver contain only magnesium.
For purposes of comparison it may be mentioned that a magnesium alloy containing hum-'- inaliy 7 per cent. of aluminium and 2 per cent. of
silver had an ultimate tensile strength of 19.9 tons per square inch at room temperature:
In order to develop the best properties in alloys containing the pair of metals, aluminium and silver together with certain other elements as above referred to, they may with advantage be s'ubjectedto a heat treatment, consisting of heating the alloy'to about400 C. for 15 minutes or more and then hardening by heating at a lower temperature, say to 220 C. for one or more days.
The production of alloys including the pair of metals aluminium and silver is conveniently eifected by melting magnesium or a magnesium rich alloy under a suitable flux and then adding the aluminium and silver in suitable quantities 3 and in the case where more complex alloys are to be produced by adding aluminium and silver together with manganese, calcium or zinc either as metals or as magnesium rich alloys to the molten magnesium.
We claim: I
A magnesium alloy containing a proportion of aluminium within the limits 6 and 8 per cent., a proportion of silver within the limits 1.5 and 3 per cent., the balance being magnesium.
JOHN HAUGHTON.
WILLIAM ELIEZER PRYTHERCH.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2126010X | 1935-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2126010A true US2126010A (en) | 1938-08-09 |
Family
ID=10899163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US102048A Expired - Lifetime US2126010A (en) | 1935-10-07 | 1936-09-22 | Magnesium alloy |
Country Status (1)
Country | Link |
---|---|
US (1) | US2126010A (en) |
-
1936
- 1936-09-22 US US102048A patent/US2126010A/en not_active Expired - Lifetime
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