US1984152A - Alloy - Google Patents
Alloy Download PDFInfo
- Publication number
- US1984152A US1984152A US697327A US69732733A US1984152A US 1984152 A US1984152 A US 1984152A US 697327 A US697327 A US 697327A US 69732733 A US69732733 A US 69732733A US 1984152 A US1984152 A US 1984152A
- Authority
- US
- United States
- Prior art keywords
- per cent
- copper
- magnesium
- zinc
- tin
- 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
- 229910045601 alloy Inorganic materials 0.000 title description 20
- 239000000956 alloy Substances 0.000 title description 20
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 12
- 229910052749 magnesium Inorganic materials 0.000 description 12
- 239000011777 magnesium Substances 0.000 description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 9
- 238000007792 addition Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- OWXLRKWPEIAGAT-UHFFFAOYSA-N [Mg].[Cu] Chemical compound [Mg].[Cu] OWXLRKWPEIAGAT-UHFFFAOYSA-N 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- GCOWTRMQPXDRQQ-UHFFFAOYSA-N [Mg].[Cu].[Zn] Chemical compound [Mg].[Cu].[Zn] GCOWTRMQPXDRQQ-UHFFFAOYSA-N 0.000 description 1
- RRXGIIMOBNNXDK-UHFFFAOYSA-N [Mg].[Sn] Chemical compound [Mg].[Sn] RRXGIIMOBNNXDK-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
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
Definitions
- the invention relates to magnesium base alloys containing copper.
- the invention is particularly concerned with my discovery that additions of the low melting point metals tin and zinc,
- a prime object of the invention is the development of magnesium-copper alloys which are susceptible to variations of physical properties by 0 suitable thermal treatments.
- tin or zinc added to magnesium base alloys is especially beneficial in the as cast condition and that the improvement in the properties of the resulting alloys is accentuated by a suitable thermal treatment.
- a magnesium base alloy containing about 1.0 per cent of copper and about 6.0 per cent of tin had, in the as cast condition, a tensile strength of 16,600 pounds per square inch and an elongation of 2.8 per cent in 2 inchh.
- the alloy After a thermal. treatment of 20 hours at 450 C. the alloy had a tensile strength of 23,780 pounds per square inch and an elongation of 6.5 per cent in 2 inches. 1
- Another magnesium base alloy containing about 4.0 per cent of copper and 3.0 per cent of zinc had, in the as cast condition, a tensile strength of 13,970 pounds per square inch and an elongation of 0.8 per cent in 2 inches. After a heat treatment of 16 hours at about 350 C. it had a tensile strength of about 21,500 pounds per square inch and an elongation of about 3.3 per cent in 2 inches.
- Another magnesium base alloy containing 2.0 per cent of copper, 6.0 per cent of tin, and 2.0 per cent of zinc had, in the cast condition,- a tensile strength of 14,900 pounds per square inch and an elongation of 0.7 per cent in 2 inches: After a thermal treatment of 20 hours at 425 C. it had a tensile strength of 21,486 pounds per square inch and an elongation-of 3.7 per cent in 2 inches.
- the tin may be added to magnesium-copper. alloys in amount between about 0.5 .per cent and 20.0 per cent andthe zinc between about 0.5 per alloys of the low melting point metals tin and ,tion of making a preliminary low melting point cent and 6.0 per cent. If used in combination the total amount of tin and zinc should not exceed 20.0 per ,cent.
- the copper in all cases may be between 0.5 per cent and 15.0 per cent.
- the heat treatment of magnesium base alloys containing copper with additions of tin and/or zinc should be carried on between about 330 C. and 450 C. I prefer about 425 C. for about 20 hours, although the time may be varied from 1 hour upwards with improved effect over the cast condition.
- magnesium base alloy designates an alloy containing more than 50 per cent of magnesium.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
Patented Dec. 11, 1934 UNITED STATES PATENT OFFICE ALLOY No Drawing. Application November 9, 1933, Serial No. 697,327
2 Claims.
The invention relates to magnesium base alloys containing copper. The invention is particularly concerned with my discovery that additions of the low melting point metals tin and zinc,
5 separately or in combination, effect a marked improvement in magnesium-copper alloys.
A prime object of the invention is the development of magnesium-copper alloys which are susceptible to variations of physical properties by 0 suitable thermal treatments.
I have found that the addition of tin or zinc to magnesium base alloys is especially beneficial in the as cast condition and that the improvement in the properties of the resulting alloys is accentuated by a suitable thermal treatment. For instance, a magnesium base alloy containing about 1.0 per cent of copper and about 6.0 per cent of tin had, in the as cast condition, a tensile strength of 16,600 pounds per square inch and an elongation of 2.8 per cent in 2 inchh. After a thermal. treatment of 20 hours at 450 C. the alloy had a tensile strength of 23,780 pounds per square inch and an elongation of 6.5 per cent in 2 inches. 1
Another magnesium base alloy containing about 4.0 per cent of copper and 3.0 per cent of zinc had, in the as cast condition, a tensile strength of 13,970 pounds per square inch and an elongation of 0.8 per cent in 2 inches. After a heat treatment of 16 hours at about 350 C. it had a tensile strength of about 21,500 pounds per square inch and an elongation of about 3.3 per cent in 2 inches.
' Another magnesium base alloy containing 2.0 per cent of copper, 6.0 per cent of tin, and 2.0 per cent of zinc had, in the cast condition,- a tensile strength of 14,900 pounds per square inch and an elongation of 0.7 per cent in 2 inches: After a thermal treatment of 20 hours at 425 C. it had a tensile strength of 21,486 pounds per square inch and an elongation-of 3.7 per cent in 2 inches.
The tin may be added to magnesium-copper. alloys in amount between about 0.5 .per cent and 20.0 per cent andthe zinc between about 0.5 per alloys of the low melting point metals tin and ,tion of making a preliminary low melting point cent and 6.0 per cent. If used in combination the total amount of tin and zinc should not exceed 20.0 per ,cent. The copper in all cases may be between 0.5 per cent and 15.0 per cent. The heat treatment of magnesium base alloys containing copper with additions of tin and/or zinc should be carried on between about 330 C. and 450 C. I prefer about 425 C. for about 20 hours, although the time may be varied from 1 hour upwards with improved effect over the cast condition. Some alloys I have found especially useful are (1) a magnesium base alloy containing about 2.0 per cent copper and 6.0 per cent tin; (2) a magnesium base alloy containing about 2.0 per cent copper and 4.0 per cent zinc; (3) a magnesium base alloy containing about 2.0 per cent copper, 5.0 per cent tin, and 3.0 per cent zinc. The term magnesium base alloy designates an alloy containing more than 50 per cent of magnesium.
It is particularly fortunate that the improvement in properties hereinabove noted is associated with the addition to magnesium-copper zinc. They alloy readily with magnesium in the 5 proportions claimed hereinbelow and they may be introduced either in the pure state or as alloys of magnesium-zinc or magnesium-tin, 'but because of their relatively low melting point the precau-
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US697327A US1984152A (en) | 1933-11-09 | 1933-11-09 | Alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US697327A US1984152A (en) | 1933-11-09 | 1933-11-09 | Alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1984152A true US1984152A (en) | 1934-12-11 |
Family
ID=24800703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US697327A Expired - Lifetime US1984152A (en) | 1933-11-09 | 1933-11-09 | Alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1984152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921222A1 (en) * | 1978-05-31 | 1979-12-06 | Magnesium Elektron Ltd | MAGNESIUM ALLOYS AND PRODUCTS MADE THEREOF |
-
1933
- 1933-11-09 US US697327A patent/US1984152A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921222A1 (en) * | 1978-05-31 | 1979-12-06 | Magnesium Elektron Ltd | MAGNESIUM ALLOYS AND PRODUCTS MADE THEREOF |
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