GB1051835A - Heat treatment of refractory metals - Google Patents
Heat treatment of refractory metalsInfo
- Publication number
- GB1051835A GB1051835A GB3393363A GB3393363A GB1051835A GB 1051835 A GB1051835 A GB 1051835A GB 3393363 A GB3393363 A GB 3393363A GB 3393363 A GB3393363 A GB 3393363A GB 1051835 A GB1051835 A GB 1051835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- based alloys
- alloy
- alloys
- hrs
- refractory metals
- 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
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Forging (AREA)
Abstract
A method of heat treating an alloy based on one of the refractory metals Mo, W, Cb, Ta, Cr and containing carbon in excess of 0.05 Wt %, comprises aging the previously annealed alloy, prior to the final processing, for a time and at a temperature such that fine metal carbides are precipitated in the micro structure of the alloy, and then reducing the alloy to a finished form. Aging of alloys containing more than 0.1% at C may be effected by holding the alloy at a suitable elevated temperature for a certain time as follows:- .Mo and W based alloys:.5-50 hrs. at 2400-2800 DEG F .Cb and Ta based alloys:.1-10 hrs. at 2000-2500 DEG F .Cr based alloys:.1-10 hrs. at 1800-2300 DEG F Suitable temperatures given for prior annealing the alloys are: .Mo and W based alloys:.3200-4000 DEG F .Ta based alloys:.3000-4000 DEG F .Cb based alloys:.3000-3500 DEG F .Cr based alloys:.2500-3000 DEG F The process results in increased strength at high temperatures without loss of ductility at low temperatures.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US227045A US3194697A (en) | 1962-09-28 | 1962-09-28 | Heat treatment of refractory metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1051835A true GB1051835A (en) | 1966-12-21 |
Family
ID=22851516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3393363A Expired GB1051835A (en) | 1962-09-28 | 1963-08-27 | Heat treatment of refractory metals |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3194697A (en) |
| GB (1) | GB1051835A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006040545A2 (en) * | 2004-10-12 | 2006-04-20 | Hardide Coatings Limited | Alloyed tungsten produced by chemical vapour deposition |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3297496A (en) * | 1963-06-07 | 1967-01-10 | Winston H Chang | Heat treatment of columbium and molybdenum base alloys |
| BE659804A (en) * | 1964-02-20 | |||
| US3361599A (en) * | 1964-05-27 | 1968-01-02 | Sylvania Electric Prod | Method of producing high temperature alloys |
| GB1115760A (en) * | 1966-01-13 | 1968-05-29 | Westinghouse Electric Corp | Precipitation hardenable tantalum base alloy |
| US3447921A (en) * | 1966-12-21 | 1969-06-03 | Gen Electric | Molybdenum-base alloy |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2467675A (en) * | 1942-09-30 | 1949-04-19 | Callite Tungsten Corp | Alloy of high density |
| US2628926A (en) * | 1949-06-21 | 1953-02-17 | Westinghouse Electric Corp | Manufacture of machinable molybdenum |
| US2698892A (en) * | 1950-12-29 | 1955-01-04 | Fansteel Metallurgical Corp | Method of producing welded molybdenum |
| US2678272A (en) * | 1951-10-06 | 1954-05-11 | Climax Molybdenum Co | Molybdenum-columbium alloys |
| US2832710A (en) * | 1956-03-01 | 1958-04-29 | Heraeus Gmbh W C | Method for carburizing spinning nozzles composed of tantalum and alloys thereof |
-
1962
- 1962-09-28 US US227045A patent/US3194697A/en not_active Expired - Lifetime
-
1963
- 1963-08-27 GB GB3393363A patent/GB1051835A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006040545A2 (en) * | 2004-10-12 | 2006-04-20 | Hardide Coatings Limited | Alloyed tungsten produced by chemical vapour deposition |
| WO2006040545A3 (en) * | 2004-10-12 | 2006-06-15 | Hardide Ltd | Alloyed tungsten produced by chemical vapour deposition |
| US8043692B2 (en) | 2004-10-12 | 2011-10-25 | Hardide Coatings Limited | Alloyed tungsten produced by chemical vapour deposition |
| CN101061254B (en) * | 2004-10-12 | 2012-05-23 | 哈达德涂料有限公司 | Alloyed tungsten produced by chemical vapour deposition |
| KR101315923B1 (en) * | 2004-10-12 | 2013-10-10 | 하다이드 코팅스 리미티드 | Alloyed tungsten produced by chemical vapour deposition |
| NO341099B1 (en) * | 2004-10-12 | 2017-08-28 | Hardide Plc | Alloy tungsten produced by chemical vapor deposition |
Also Published As
| Publication number | Publication date |
|---|---|
| US3194697A (en) | 1965-07-13 |
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