GB890286A - Improvements in or relating to the manufacture of sintered alloys - Google Patents
Improvements in or relating to the manufacture of sintered alloysInfo
- Publication number
- GB890286A GB890286A GB2068559A GB2068559A GB890286A GB 890286 A GB890286 A GB 890286A GB 2068559 A GB2068559 A GB 2068559A GB 2068559 A GB2068559 A GB 2068559A GB 890286 A GB890286 A GB 890286A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alloy
- constituents
- cobalt
- chromium
- master alloy
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
A sintered alloy body comprising as major constituents chromium and nickel and/or cobalt and one or more essential minor constituents such as titanium, aluminium, zirconium, carbon or boron, is prepared from a powder mixture of the constituents in which at least one of the minor constituents is introduced in the form of a ternary master alloy with chromium and either nickel or cobalt. The major constituents are preferably added as finely divided binary master alloys and in the case of cobalt and chromium the preferred weight range of the binary master alloy is from 40 : 60 to 60 : 40. The ternary alloy containing up to 20% by weight of the minor constituents contains the cobalt and chromium in the same relative proportions as the binary master alloy. The other constituents such as nickel are added as elemental powders or in the case of zirconium as the hydride and the boron may be added as an alloy with cobalt. In an example an alloy composition of 20% Cr, 16% Co, 2,35% Ti, 1,35% Al and the balance Ni was prepared from a mixture of powders of a Cr-Co master alloy, Cr-Co-Ti master alloy, Cr-Co-Al master alloy and carbonyl nickel-powder. The mixture was pressed at 35 tons p.s.i. and sintered in vacuum at 1300 DEG C. for 20 hours. A reducing or inert atmosphere may also be used for sintering. Specification 887,852 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2068559A GB890286A (en) | 1959-06-16 | 1959-06-16 | Improvements in or relating to the manufacture of sintered alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2068559A GB890286A (en) | 1959-06-16 | 1959-06-16 | Improvements in or relating to the manufacture of sintered alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB890286A true GB890286A (en) | 1962-02-28 |
Family
ID=10149968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2068559A Expired GB890286A (en) | 1959-06-16 | 1959-06-16 | Improvements in or relating to the manufacture of sintered alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB890286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1279332B (en) * | 1962-08-18 | 1968-10-03 | Krebsoege Gmbh Sintermetall | Process for the powder-metallurgical production of precision parts from stellite or stellite-like alloys |
-
1959
- 1959-06-16 GB GB2068559A patent/GB890286A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1279332B (en) * | 1962-08-18 | 1968-10-03 | Krebsoege Gmbh Sintermetall | Process for the powder-metallurgical production of precision parts from stellite or stellite-like alloys |
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