GB639808A - Improvements in or relating to the heat treatment of magnesium base alloys - Google Patents
Improvements in or relating to the heat treatment of magnesium base alloysInfo
- Publication number
- GB639808A GB639808A GB37748A GB37748A GB639808A GB 639808 A GB639808 A GB 639808A GB 37748 A GB37748 A GB 37748A GB 37748 A GB37748 A GB 37748A GB 639808 A GB639808 A GB 639808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- heating
- per
- hours
- base 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
Abstract
Magnesium base alloys consisting of at least 90 per cent magnesium, 4-6 per cent zinc and 0.5-1 per cent zirconium, and with or without up to 5 per cent Cd, up to 0.5 per cent each and in total of rare earth metals, Ag, Th, Cu, Bi, Ba, up to 1 per cent Hg and Pb, up to 0.2 per cent Ca and Be to maximum solubility, are subjected to heating to 260-400 DEG C and subsequently to 100-240 DEG C, the time and temperature being adjusted to produce a .1 per cent proof stress greater than that obtained by heating the alloy to 180 DEG C for 24 hours. A test bar according to D.T.D.59.B. subjected to the treatment will have a .1 per cent proof stress of at least 10 tons per sq. in. at 4 per cent Zn and rising proportionately with increasing Zn to 11 tons per sq. in. at 6 per cent Zn. A preferred treatment is 2 hours at 330 DEG C followed by 24 hours at 180 DEG C. The alloys may be cooled after the first heating and also after the second heating by air or oil or water quenching. Specification 511,137 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB37748A GB639808A (en) | 1948-01-06 | 1948-01-06 | Improvements in or relating to the heat treatment of magnesium base alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB37748A GB639808A (en) | 1948-01-06 | 1948-01-06 | Improvements in or relating to the heat treatment of magnesium base alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639808A true GB639808A (en) | 1950-07-05 |
Family
ID=9703345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37748A Expired GB639808A (en) | 1948-01-06 | 1948-01-06 | Improvements in or relating to the heat treatment of magnesium base alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB639808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001076792A2 (en) * | 2000-04-07 | 2001-10-18 | Mazda Motor Corporation | Method for manufacturing shaped light metal article |
-
1948
- 1948-01-06 GB GB37748A patent/GB639808A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001076792A2 (en) * | 2000-04-07 | 2001-10-18 | Mazda Motor Corporation | Method for manufacturing shaped light metal article |
| WO2001076792A3 (en) * | 2000-04-07 | 2002-02-07 | Mazda Motor | Method for manufacturing shaped light metal article |
| US6818080B2 (en) | 2000-04-07 | 2004-11-16 | Mazda Motor Corporation | Method for manufacturing shaped light metal article |
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