GB584960A - Improvements relating to aluminium alloys - Google Patents
Improvements relating to aluminium alloysInfo
- Publication number
- GB584960A GB584960A GB1710344A GB1710344A GB584960A GB 584960 A GB584960 A GB 584960A GB 1710344 A GB1710344 A GB 1710344A GB 1710344 A GB1710344 A GB 1710344A GB 584960 A GB584960 A GB 584960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- per cent
- alloy
- molybdenum
- tungsten
- 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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
Landscapes
- 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)
Abstract
An aluminium base alloy consists of, in addition to aluminium, copper 1.5-2.25 per cent., nickel 1.8-2.3 per cent., magnesium 0.65-0.85 per cent., manganese 0.8-1.2 per cent., molybdenum 0.2-0.3 per cent. The molybdenum may be wholly or partly replaced by tungsten, the ratio of tungsten used to molybdenum replaced being 2.2 to 1. The alloy may also include the following: iron up to 0.7 per cent., silicon up to 0.6 per cent., titanium up to 0.2 per cent., and cobalt up to 0.5 per cent. The alloy may be made by first forming suitable binary alloys with aluminium of all the other metals except magnesium, melting about 75 per cent. of aluminium metal with the necessary amount of aluminium-nickel alloy, to form a melt having a temperature of 780 DEG C. to 800 DEG C., then adding the total necessary amount of aluminium-molybdenum alloy and/or aluminium-tungsten alloy (in that order when both molybdenum and tungsten are used) followed by the total necessary amounts of aluminium-manganese and aluminium-copper alloys in that order and the balance of the aluminium. The melt temperature is maintained at 680-770 DEG C. and the magnesium, in metal form, is added. Where a proportion of scrap alloy is to be used, about 50 per cent. of the aluminium metal is melted with about 50 per cent. of the aluminium-nickel alloy. About 50 per cent. of the other binary alloys are then added in the above-mentioned order. The scrap is then added followed by the remainder of the binary alloys and the balance of the aluminium in the above order, and when the melt temperature is 680- DEG 770 DEG C. the magnesium is added. A suitable heat treatment for the alloys involves heating to 550-585 DEG C. and rapidly cooling followed by ageing at 120 DEG -220 DEG C. for from 4-36 hours and allowing to cool. A preferred heat treatment is at 570 DEG C. (\sB5C DEG ) for about 6 hours followed by quenching in water or oil or air blast, re-heating for about 12 hours at 190 DEG C. (\sB5C. DEG ), and cooling in still air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1710344A GB584960A (en) | 1944-09-07 | 1944-09-07 | Improvements relating to aluminium alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1710344A GB584960A (en) | 1944-09-07 | 1944-09-07 | Improvements relating to aluminium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB584960A true GB584960A (en) | 1947-01-27 |
Family
ID=10089303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1710344A Expired GB584960A (en) | 1944-09-07 | 1944-09-07 | Improvements relating to aluminium alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB584960A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173214A (en) * | 1985-04-02 | 1986-10-08 | Aluminum Co Of America | Powder metallurgy |
-
1944
- 1944-09-07 GB GB1710344A patent/GB584960A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173214A (en) * | 1985-04-02 | 1986-10-08 | Aluminum Co Of America | Powder metallurgy |
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