US3395012A - Niobium alloys - Google Patents
Niobium alloys Download PDFInfo
- Publication number
- US3395012A US3395012A US506827A US50682765A US3395012A US 3395012 A US3395012 A US 3395012A US 506827 A US506827 A US 506827A US 50682765 A US50682765 A US 50682765A US 3395012 A US3395012 A US 3395012A
- Authority
- US
- United States
- Prior art keywords
- niobium
- alloys
- zirconium
- hafnium
- boron
- 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
- 229910001257 Nb alloy Inorganic materials 0.000 title description 16
- 229910045601 alloy Inorganic materials 0.000 description 21
- 239000000956 alloy Substances 0.000 description 21
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 20
- 229910052735 hafnium Inorganic materials 0.000 description 20
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 20
- 229910052726 zirconium Inorganic materials 0.000 description 20
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 19
- 229910052796 boron Inorganic materials 0.000 description 19
- 229910052799 carbon Inorganic materials 0.000 description 19
- 229910052715 tantalum Inorganic materials 0.000 description 11
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 11
- 229910052758 niobium Inorganic materials 0.000 description 10
- 239000010955 niobium Substances 0.000 description 10
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000007792 addition Methods 0.000 description 8
- -1 platinum group metals Chemical class 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- GAYPVYLCOOFYAP-UHFFFAOYSA-N [Nb].[W] Chemical compound [Nb].[W] GAYPVYLCOOFYAP-UHFFFAOYSA-N 0.000 description 6
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 5
- 229910052741 iridium Inorganic materials 0.000 description 5
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 5
- 229910052762 osmium Inorganic materials 0.000 description 5
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 5
- 229910052707 ruthenium Inorganic materials 0.000 description 5
- 229910001080 W alloy Inorganic materials 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 229910001362 Ta alloys Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- RMOSMMUWFCLGCL-UHFFFAOYSA-N [W].[Nb].[Ta] Chemical compound [W].[Nb].[Ta] RMOSMMUWFCLGCL-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/02—Alloys based on vanadium, niobium, or tantalum
Definitions
- ABSTRACT OF THE DISCLOSURE A niobium-base alloy consisting essentially of to 25% tungsten, up to 40% tantalum, 0.1 to 10% of at least one element selected from the group consisting of ruthenium, osmium and iridium with the balance essentially niobium, said niobium being present in an amount of at least 30%.
- This invention relates to niobium alloys containing tungsten as an essential element. It is particularly applicable to alloys containing some tantalum, although the inclusion of tantalum is not essential to this invention.
- platinum group metals of Group VIII of the Periodic Table has desirable effects on alloys including niobium and tungsten, with or without tantalum.
- alloys which consist by weight of at least 30% niobium and impurities, 10-25% tungsten, 0-40% tantalum, and 01-10% of one or more of ruthenium, osmium and iridium.
- Preferred alloys include hafnium and/ or zirconium together with carbon and/ or boron in the following ranges:
- the atomic ratio of hafnium and/or zirconium to carbon is preferably in the range 0.25-2.00 and the atomic ratio of hafnium and/ or zirconium to boron is preferably in the range 0.10-1.50.
- Alloys according to the present invention may further include rh'enium 0.5-4% and/ or molybdenum 0.5-4%.
- platinum group metals osmium, iridium and ruthenium to niobium-tungsten and niobium-tungsten-tantalum alloys increases the solid solution strength of such alloys. It is also clear that such additions of platinum group metals also increases the strength of precipitationstrengthened niobium-tungsten alloys, with or Without tantalum.
- a niobium alloy consisting essentially of to tungsten, up to 40% tantalum, 0.1 to 10% of at least one element selected from the group consisting of ruthenium, osmium, and iridium, with the balance being essentially niobium, said niobium being present in an amount of at least 2.
- the niobium alloy of claim 1 further consisting essentially of 1 to 4% hafnium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
- niobium alloy of claim 2 wherein the atomic ratio of hafnium to carbon is in the range from 0.25 to 2 and the atomic ratio of hafnium to boron is in the range from 0.1 to 1.5.
- niobium alloy of claim 1 further consisting essentially of 0.5 to 2% zirconium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
- niobium alloy of claim 4 wherein the atomic ratio of zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of zirconium to boron is in the range from 0.1 to 1.5.
- the niobium alloy of claim 1 further consisting essentially of 1 to 4% hafnium, 0.5 to 2% zirconium and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
- niobium alloy of claim 6 wherein the atomic ratio of each of the elements hafnium and zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of each of the elements hafnium and zirconium to boron is in the range from 0.1 to 1.5.
- a niobium alloy consisting essentially of 10 to 25% tungsten, up to 40% tantalum, 0.5 to 4% of at least one element selected from the group consisting of rhenium and molybdenum, 0.1 to 10% of at least one element selected from the group consisting of ruthenium, osmium, and iridium with the balance being essentially niobium, said niobium being present in an amount of at least 30%.
- niobium alloy of claim 8 further consisting essentially of l to 4% hafnium, and 0.05 to 0.2 of at least one element selected from the group consisting of carbon and boron.
- niobium alloy of claim 9 wherein the atomic ratio of hafnium to carbon is in the range from 0.25 to 2 and the atomic ratio of hafnium to boron is in the range from 0.1 to 1.5.
- the niobium alloy of claim 8 further consisting essentially of 0.5 to 2% zirconium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
- niobium alloy of claim 11 wherein the atomic ratio of zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of zirconium to boron is in the range from 0.1 to 1.5.
- the niobium alloy of claim 8 further consisting essentially of 1 to 4% hafnium, 0.5 to 2% zirconium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
- niobium alloy of claim 13 wherein the atomic ratio of each of the elements hafnium and zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of each of the elements hafnium and zirconium to boron is in the range from 0.1 to 1.5.
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- 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)
- Connection Of Batteries Or Terminals (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Description
United States Patent 3,395,012 NIOBIUM ALLGYS George D. McAdam, Tamworth-in-Arden, and James S. Abercrornbie, Atherstone, England, assignors to The Birmingham Small Arms Company Limited, Birmingham, England, a British company No Drawing. Filed Nov. 8, 1965, Ser. No. 506,827 Claims priority, application Great Britain, Nov. 10, 1964, 45,767/64 14 Claims. (Cl. 75134) ABSTRACT OF THE DISCLOSURE A niobium-base alloy consisting essentially of to 25% tungsten, up to 40% tantalum, 0.1 to 10% of at least one element selected from the group consisting of ruthenium, osmium and iridium with the balance essentially niobium, said niobium being present in an amount of at least 30%.
This invention relates to niobium alloys containing tungsten as an essential element. It is particularly applicable to alloys containing some tantalum, although the inclusion of tantalum is not essential to this invention.
It has been found that the inclusion of platinum group metals of Group VIII of the Periodic Table has desirable effects on alloys including niobium and tungsten, with or without tantalum.
It is known that the addition of hafnium or zirconium and boron or carbon to niobium-tungsten alloys causes a strong precipitate after heat-treatment. It has now been found that the addition of platinum group metals to niobium-tungsten alloys including some hafnium or zirconium and boron or carbon further improves such alloys.
It is therefore an object of the present invention to improve the solid solution state strength of niobium-tungsten alloys, with or without tantalum, by the addition of platinum group metals of Group VIII of the Period Table.
It is a further object of the present invention to improve the strength of alloys containing niobium and tungsten with hafnium or zirconium and boron or carbon, with or Without tantalum, by the addition of platinum group metals of Group VIII of the Periodic Table.
According therefore to the present invention, there are provided alloys which consist by weight of at least 30% niobium and impurities, 10-25% tungsten, 0-40% tantalum, and 01-10% of one or more of ruthenium, osmium and iridium.
Preferred alloys include hafnium and/ or zirconium together with carbon and/ or boron in the following ranges:
Percent Hafnium 1.00-4.00 Zirconium 0.50-2.00 Carbon 0.05-0.20 Boron 0.05-0.20
The atomic ratio of hafnium and/or zirconium to carbon is preferably in the range 0.25-2.00 and the atomic ratio of hafnium and/ or zirconium to boron is preferably in the range 0.10-1.50.
Alloys according to the present invention may further include rh'enium 0.5-4% and/ or molybdenum 0.5-4%.
The examples listed in the tables below were prepared by conventional methods for this type of alloy, that is solution treatment of the alloy in the temperature range 3,395,012 Patented July 30, 1968 ice 1700" C.-2000 C., followed by ageing treatment in the temperature range 100 C.-1500 C. Alloys Numbers 1, 6, 9, 11, 13, and represent alloy compositions without the platinum group metals added.
The alloys listed in Table I were then tested to show the effects of platinum group metal additions to niobiumtungsten alloys, and niobium-tungsten-tantalum alloys on their solid solution strengths. The results of these tests are given in Table 2 below.
TABLE 2 Applied Secondary Hundred Alloy stress, Rupture creep rate, hour rup- Number tons/sq. in. life in percent per time stress, at 1,200 0. hours hour tons/sq. in. at 1,200 C.
TABLE 3 Composition (percentages by weight) Alloy Number Nb W Ta Zr Hf C B Ir Ru Os These examples Were first tested to show the favourable elfect of hafnium and/ or zirconium and carbon and/ or boron on niobium-tungsten and niobium-tungstentantalurn alloys. These results are given in Table 4, although this forms no part of the present invention.
TABLE 4 100 hr. rupture stress, tons/ Alloy number: sq. in. (1200 C.)
The effect of the addition of platinum group metals to precipitation-strengthened alloys is given below in Table 5.
TABLE 100 hr. rupture stress, tons/ Alloy number: sq. in. (1200 C.)
It is therefore clear that the addition of one or more of the platinum group metals osmium, iridium and ruthenium to niobium-tungsten and niobium-tungsten-tantalum alloys increases the solid solution strength of such alloys. It is also clear that such additions of platinum group metals also increases the strength of precipitationstrengthened niobium-tungsten alloys, with or Without tantalum.
We claim:
1. A niobium alloy consisting essentially of to tungsten, up to 40% tantalum, 0.1 to 10% of at least one element selected from the group consisting of ruthenium, osmium, and iridium, with the balance being essentially niobium, said niobium being present in an amount of at least 2. The niobium alloy of claim 1 further consisting essentially of 1 to 4% hafnium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
3. The niobium alloy of claim 2 wherein the atomic ratio of hafnium to carbon is in the range from 0.25 to 2 and the atomic ratio of hafnium to boron is in the range from 0.1 to 1.5.
4. The niobium alloy of claim 1 further consisting essentially of 0.5 to 2% zirconium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
5. The niobium alloy of claim 4 wherein the atomic ratio of zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of zirconium to boron is in the range from 0.1 to 1.5.
6. The niobium alloy of claim 1 further consisting essentially of 1 to 4% hafnium, 0.5 to 2% zirconium and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
7. The niobium alloy of claim 6 wherein the atomic ratio of each of the elements hafnium and zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of each of the elements hafnium and zirconium to boron is in the range from 0.1 to 1.5.
8. A niobium alloy consisting essentially of 10 to 25% tungsten, up to 40% tantalum, 0.5 to 4% of at least one element selected from the group consisting of rhenium and molybdenum, 0.1 to 10% of at least one element selected from the group consisting of ruthenium, osmium, and iridium with the balance being essentially niobium, said niobium being present in an amount of at least 30%.
9. The niobium alloy of claim 8 further consisting essentially of l to 4% hafnium, and 0.05 to 0.2 of at least one element selected from the group consisting of carbon and boron.
10. The niobium alloy of claim 9 wherein the atomic ratio of hafnium to carbon is in the range from 0.25 to 2 and the atomic ratio of hafnium to boron is in the range from 0.1 to 1.5.
11. The niobium alloy of claim 8 further consisting essentially of 0.5 to 2% zirconium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
12. The niobium alloy of claim 11 wherein the atomic ratio of zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of zirconium to boron is in the range from 0.1 to 1.5.
13. The niobium alloy of claim 8 further consisting essentially of 1 to 4% hafnium, 0.5 to 2% zirconium, and 0.05 to 0.2% of at least one element selected from the group consisting of carbon and boron.
14. The niobium alloy of claim 13 wherein the atomic ratio of each of the elements hafnium and zirconium to carbon is in the range from 0.25 to 2 and the atomic ratio of each of the elements hafnium and zirconium to boron is in the range from 0.1 to 1.5.
References Cited UNITED STATES PATENTS 3,115,407 12/1963 Hum et a1. 174 3,188,205 6/1965 Michael 75-174 3,230,119 l/l966 Gemmell et a1. 75-174 X 3,297,438 1/1967 Bradley et a]. 75174 OTHER REFERENCES AD 242 242, OTC PB 151091, DMIC Report 133, July 25, 1960, Tantalum and Tantalum Alloys, p. 110.
Zeitschrift fiir Metallkunde, vol. 54, No. 5, May 1963, pp. 317-319.
CHARLES N. LOVELL, Primary Examiner.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB45767/64A GB1103724A (en) | 1964-11-10 | 1964-11-10 | Improvements in or relating to niobium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3395012A true US3395012A (en) | 1968-07-30 |
Family
ID=10438511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US506827A Expired - Lifetime US3395012A (en) | 1964-11-10 | 1965-11-08 | Niobium alloys |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3395012A (en) |
| GB (1) | GB1103724A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040158309A1 (en) * | 2003-02-10 | 2004-08-12 | W. C. Heraeus Gmbh & Co. Kg | Metal alloy for medical devices and implants |
| US20070276488A1 (en) * | 2003-02-10 | 2007-11-29 | Jurgen Wachter | Medical implant or device |
| US20080038146A1 (en) * | 2003-02-10 | 2008-02-14 | Jurgen Wachter | Metal alloy for medical devices and implants |
| US9834829B1 (en) | 2009-07-07 | 2017-12-05 | H.C. Starck Inc. | Niobium-based alloy that is resistant to aqueous corrosion |
| US11198927B1 (en) | 2019-09-26 | 2021-12-14 | United States Of America As Represented By The Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
| US11846008B1 (en) | 2019-09-26 | 2023-12-19 | United States Of America As Represented By Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3115407A (en) * | 1960-12-06 | 1963-12-24 | Stauffer Chemical Co | Multicomponent columbium alloys |
| US3188205A (en) * | 1961-12-20 | 1965-06-08 | Fansteel Metallurgical Corp | Columbium alloy |
| US3230119A (en) * | 1963-09-17 | 1966-01-18 | Du Pont | Method of treating columbium-base alloy |
| US3297438A (en) * | 1964-04-06 | 1967-01-10 | United Aircraft Corp | High temperature strength columbium base alloys |
-
1964
- 1964-11-10 GB GB45767/64A patent/GB1103724A/en not_active Expired
-
1965
- 1965-11-08 US US506827A patent/US3395012A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3115407A (en) * | 1960-12-06 | 1963-12-24 | Stauffer Chemical Co | Multicomponent columbium alloys |
| US3188205A (en) * | 1961-12-20 | 1965-06-08 | Fansteel Metallurgical Corp | Columbium alloy |
| US3230119A (en) * | 1963-09-17 | 1966-01-18 | Du Pont | Method of treating columbium-base alloy |
| US3297438A (en) * | 1964-04-06 | 1967-01-10 | United Aircraft Corp | High temperature strength columbium base alloys |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8403980B2 (en) | 2003-02-10 | 2013-03-26 | Heraeus Materials Technology Gmbh & Co. Kg | Metal alloy for medical devices and implants |
| US20070221300A1 (en) * | 2003-02-10 | 2007-09-27 | Jurgen Wachter | Metal alloy for medical devices and implants |
| US20070276488A1 (en) * | 2003-02-10 | 2007-11-29 | Jurgen Wachter | Medical implant or device |
| US20080038146A1 (en) * | 2003-02-10 | 2008-02-14 | Jurgen Wachter | Metal alloy for medical devices and implants |
| US20100222866A1 (en) * | 2003-02-10 | 2010-09-02 | Jurgen Wachter | Metal alloy for medical devices and implants |
| US8349249B2 (en) | 2003-02-10 | 2013-01-08 | Heraeus Precious Metals Gmbh & Co. Kg | Metal alloy for medical devices and implants |
| US20040158309A1 (en) * | 2003-02-10 | 2004-08-12 | W. C. Heraeus Gmbh & Co. Kg | Metal alloy for medical devices and implants |
| US9834829B1 (en) | 2009-07-07 | 2017-12-05 | H.C. Starck Inc. | Niobium-based alloy that is resistant to aqueous corrosion |
| US10400314B2 (en) | 2009-07-07 | 2019-09-03 | H.C. Starck Inc. | Niobium-based alloy that is resistant to aqueous corrosion |
| US11629393B2 (en) | 2009-07-07 | 2023-04-18 | Materion Newton, Inc. | Niobium-based alloy that is resistant to aqueous corrosion |
| US11993832B2 (en) | 2009-07-07 | 2024-05-28 | Materion Newton Inc. | Niobium-based alloy that is resistant to aqueous corrison |
| US11198927B1 (en) | 2019-09-26 | 2021-12-14 | United States Of America As Represented By The Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
| US11846008B1 (en) | 2019-09-26 | 2023-12-19 | United States Of America As Represented By Secretary Of The Air Force | Niobium alloys for high temperature, structural applications |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1103724A (en) | 1968-02-21 |
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