US2880089A - Titanium base alloys - Google Patents
Titanium base alloys Download PDFInfo
- Publication number
- US2880089A US2880089A US702533A US70253357A US2880089A US 2880089 A US2880089 A US 2880089A US 702533 A US702533 A US 702533A US 70253357 A US70253357 A US 70253357A US 2880089 A US2880089 A US 2880089A
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- manganese
- aluminum
- titanium
- alloys
- beta
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- Expired - Lifetime
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- 229910045601 alloy Inorganic materials 0.000 title claims description 22
- 239000000956 alloy Substances 0.000 title claims description 22
- 239000010936 titanium Substances 0.000 title claims description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims description 14
- 229910052719 titanium Inorganic materials 0.000 title claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 229910052790 beryllium Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000010955 niobium Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011572 manganese Substances 0.000 description 13
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 12
- 229910052748 manganese Inorganic materials 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910018131 Al-Mn Inorganic materials 0.000 description 5
- 229910018461 Al—Mn Inorganic materials 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000220479 Acacia Species 0.000 description 1
- 241000499489 Castor canadensis Species 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 235000010643 Leucaena leucocephala Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 235000011779 Menyanthes trifoliata Nutrition 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- NLLZTRMHNHVXJJ-UHFFFAOYSA-J titanium tetraiodide Chemical compound I[Ti](I)(I)I NLLZTRMHNHVXJJ-UHFFFAOYSA-J 0.000 description 1
- -1 titanium-aluminum-manganese Chemical compound 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
Definitions
- the alloys of the invention may contain from about 0.5 to 40% aluminum together with about 0.5 to manganese. Where the manganese content is on the high side of its. range, the aluminum content is preferably on the low side of its range, and vice versa, for the best combination of properties.
- the alloys containing about 0.5 to 13% aluminum and about 0.5 to 13% manganese are characterized by high. tensile strength combined with adequate ductility for fabrication purposes, i.e., forging, extruding, rolling, drawing, etc., provided the manganese content is on the high side of its range when the aluminum content is on; the low side of its range and vice versa.
- the alloys containing aluminum and/or manganese contents above about 13% tend to become increasingly brittle with increase in total alloy content, but are usablein cast form, being characterized in general by high. hardness.
- pure titanium, metal has at: normal; or atmospheric temperatures a close-packed hexagonal or all-alpha microstructure which transforms at about 885 C. and above to a body-centered cubic or all-beta microstructure.
- Aluminum alloyed with titanium tends to stabilize the alpha phase, whereas manganese tends to promote retention and stabilization of the beta phase at; normal or atmospheric temperatures.
- the alloys of; the invention are accordingly characterized in general by a, mixed alpha-beta microstructure at room temperature, which may contain in addition, eutect-oid decompositionproducts depending on the heat treatment, since manganese is a beta-promoter of the sluggishly reactive eutectoicl; type.
- thattitaniumaluminumfmanganese base alloys containing about 0.5 to 13% each of aluminum and manganese may be further strengthened with retention of adequate ductility for fabrication by additions of beta promoters other than manganese, such as Mo, V, Cb, Ta, Zr, Cr, W, Fe, Co, Ni, Cu, Be and Si.
- beta promoters Mo, V, Cb, Ta and Zr are beta-isomorphous with titanium andhence may be added to the base Ti Al-Mn alloy in large amounts ranging up to-40 or 50% with increasing; efiect on room temperature beta stabilization.
- the lower elfective limit for these additions is about 0.5% for all except Ni, Co, Cu, the lower efiective limit for the latter being about 0.25%
- the upper effective limit for Si and Be to avoid undue embrittlement is about 2-3% and the lower effective limit about 0.1%
- the alloys of this invention are susceptible to embrittlement by an excess of carbon, oxygen and/ or nitrogen. While the quantities of carbon, oxygen and nitrogen normally present in high quality commercial titanium can be tolerated, the oxygen and nitrogen content should not exceed about 0.1% each andv the carbon content should not exceed about.0.3%.
- Table II below gives mechanical properties showing the effect of adding the various other beta promoters to the Ti-Al-Mn base alloy of the invention.
- the majority of the analyses were derived from titanium metal of commercial purity as obtained by the magnesium reduction of titanium tetrachloride, one example being derived from iodide titanium base metal, as indicated.
- the alloys of the invention may be made by melt casting in a'cold mold furnace employing an arc electrode in an inert atmosphere or by equivalent procedures.
- a titanium base alloy consisting essentially of about: 0.5 to 13% each of aluminum and manganese and at least one beta promoter selected from the group consisting of 0.5 to 40% of molybdenum, vanadium, columbium, tantalum and zirconium, 0.5 to 20% of chromium and tungsten, 0.5 to 7% iron, 0.5 to 5% of cobalt, nickel and copper, and 0.1 to 3% of silicon and beryllium, characterized in having a tensile strength of at least 100,000 psi. and a minimum bend radius of at least 201.
- a titanium base alloy consisting essentially of about: 0.5 to 13% each of aluminum and manganese, the manganese being present on the high side of its range when aluminum is present on the low side of its range and vice versa, said alloy also containing at least one beta promoter selected from the group consisting of 0.5 to 40% of molybdenum, vanadium, columbium, tantalum and zirconium, 0.5 to 20% of chromium and tungsten, 0.5 to 5% iron, 0.5 to 5% of cobalt, nickel and copper, and 0.1 to 3% of silicon and beryllium, characterized in having a tensile strength of at least 100,000 p.s.i. and a minimum bend radius of at least 20T.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
Description
United States Patent TITANIUM BASE. ALLOYS Milton B. Vordahl, Beaver, Pa., assignor, by mesne as.- signments, to Crucible Steel Company of America, Flemington, NJ., a corporation of New Jersey No Drawing. Application December 13', 1957' Serial No. 702,533
2 Claims. (Cl. 75-1755) cations Serial, No. 131,044, filed, December 3, 1949, now
Patent No. 2,675,309, dated April, 13, 19.54, and Serial No. 385,720, filed October 12, 1953, now abandoned.
The alloys of the invention may contain from about 0.5 to 40% aluminum together with about 0.5 to manganese. Where the manganese content is on the high side of its. range, the aluminum content is preferably on the low side of its range, and vice versa, for the best combination of properties.
The alloys containing about 0.5 to 13% aluminum and about 0.5 to 13% manganese, are characterized by high. tensile strength combined with adequate ductility for fabrication purposes, i.e., forging, extruding, rolling, drawing, etc., provided the manganese content is on the high side of its range when the aluminum content is on; the low side of its range and vice versa.
The alloys containing aluminum and/or manganese contents above about 13%, tend to become increasingly brittle with increase in total alloy content, but are usablein cast form, being characterized in general by high. hardness.
As is known, pure titanium, metal" has at: normal; or atmospheric temperatures a close-packed hexagonal or all-alpha microstructure which transforms at about 885 C. and above to a body-centered cubic or all-beta microstructure. Aluminum alloyed with titanium tends to stabilize the alpha phase, whereas manganese tends to promote retention and stabilization of the beta phase at; normal or atmospheric temperatures. The alloys of; the invention are accordingly characterized in general by a, mixed alpha-beta microstructure at room temperature, which may contain in addition, eutect-oid decompositionproducts depending on the heat treatment, since manganese is a beta-promoter of the sluggishly reactive eutectoicl; type.
In my patent aforesaid I have described ternary titanium-aluminum-manganese alloys containing about 1, to 7% each of aluminum and manganese, which are strong and ductile. My further investigations have established,
ice
as shown in my copending application Serial No. 385,:
obtained over the range of from more than 7% up to about 13% aluminum with about 0.5 to 13% manganese and also over the range of more than 7% manganese with about 0.5 to 13% aluminum.
I, have further discovered, also as shown in my application, Serial No. 385,720 aforesaid, thattitaniumaluminumfmanganese base alloys containing about 0.5 to 13% each of aluminum and manganese may be further strengthened with retention of adequate ductility for fabrication by additions of beta promoters other than manganese, such as Mo, V, Cb, Ta, Zr, Cr, W, Fe, Co, Ni, Cu, Be and Si. The beta promoters Mo, V, Cb, Ta and Zr are beta-isomorphous with titanium andhence may be added to the base Ti Al-Mn alloy in large amounts ranging up to-40 or 50% with increasing; efiect on room temperature beta stabilization. The sameis true to a lesser degree of the sluggishly eutectoid beta promoters Cr, Fe and W, with respect to which chromium and tungsten are effective up to about 20% for either or both, while iron is effective up to about 7% without unduly embrittlingthe resulting alloy. Cobalt, nickel and copper transform more or less rapidly into eutectoid decomposition products; which tend to produce embrittlement, and hence are subject to lower tolerances, i. e., up to about 5% each or in aggregate. The lower elfective limit for these additions is about 0.5% for all except Ni, Co, Cu, the lower efiective limit for the latter being about 0.25% The upper effective limit for Si and Be to avoid undue embrittlement is about 2-3% and the lower effective limit about 0.1%
The alloys of this invention are susceptible to embrittlement by an excess of carbon, oxygen and/ or nitrogen. While the quantities of carbon, oxygen and nitrogen normally present in high quality commercial titanium can be tolerated, the oxygen and nitrogen content should not exceed about 0.1% each andv the carbon content should not exceed about.0.3%.
Mechanical properties of ternary Ti-Al-Mn alloysaccording to the invention are given below in Table, I. In producing the alloys of Table I, titanium metal of high purity, i.e., iodide base was employed.
It will. be seen from the test results of Table I that alloys of high strength combined. with. adequate ductility for purposes of fabrication are obtainable over the range extending up to about 13% each of aluminum and manganese, provided that for a high content of one of these elements, the other should be present in correspondingly lower amount.
As regards requisite ductility for'fabrication purposes,
TABLE '1 Mechanical properties of Ti-Al-Mn titanium base) alloys (iodide Composition, Percent Tensile Properties, (Balance Titanium) p.s.i. 1,000 Percent Elongation in 1!! Condition 1 0.2% Ofiset Yield A1 Mn 0, O, N Ultimate Percent Reduction in Area MBR, T, L 9
acacia cu m couaaooooom m mmUlUlUl 999999 comm ena-
eeeeeeee oppppoo Ewwwwwwwwwwwwwwww 90 ocql l R=rolled; A=annealed; Q=quenehed; numerals represent temperature in "0.; AC=as cast.
I Minlmum bend radius, longitudinal.
Table II below gives mechanical properties showing the effect of adding the various other beta promoters to the Ti-Al-Mn base alloy of the invention. As noted in 35 the table, the majority of the analyses were derived from titanium metal of commercial purity as obtained by the magnesium reduction of titanium tetrachloride, one example being derived from iodide titanium base metal, as indicated.
It will be seen that the quaternary and higher component alloys of Table II, containing at least one beta promoter "in addition'to manganese are in general characterized by high tensile strengths and excellent bend ductilities'. i y
' The alloys of the invention may be made by melt casting in a'cold mold furnace employing an arc electrode in an inert atmosphere or by equivalent procedures.
TABLE II Mechanical properlres of Tl-Al-Mn alloys plus other beta additions Composition, Percent Tensile Properties, MBR, T 1
(Balance Titanium) p.s.i.X1,000 Percent Percent Elonga- Reduc- 1 4 Condition 1 tion tion in VHN 0.2% Ultimate in 1" Area Al Mn Other Oflset Strength L '1 Yield (Commercial Purity Ti-Base) A... R and A 850.-. 48 71 21 61 187 0. 8 0. 8
R and A 850 88 101 19 48 304 1. 7 2. 6 R 650, A 650 115 v 136 280 3.0
4 2. 5 R 760, A 700"..- 131 145 12 34 331 2. 9 5, 3 2 3 R 760, A 600.-.-- 127 152 10 31 333 3. 2 '4; 2 4 4 R 800, A 700... 143 164 6 329 1. 0 6.3 4 2. 6 R 760, A 700..-" 130 3 9 332 .7. 8 9 4 2 5 R 760, A 700- 126 129 8 36 353 2. 6 5. 8 4 2. 5 R 760, A 700.-." 5 33 I, 355 2.8 8. 1 4 2. 5 R 760. A 700.-.... 139 146 13 38 362 2. 5 5. 7 4 2. 6 R 760, A 700...-.. 117 138 12 29 348 1. 9 9 4 2. 5 R 760, A 700. 144 148 7 38 355 2. 5 5. 9 2 3 R 760, A 600 128 142 14 37 330 1. 5 4. 7 4 2. 5 R 760, A 700. 138 144 6 33 35B 148 8 4 4 R 800, A 700.-.-.. 138 142 11 38 319 0 0 2 2 R 760, A 800.-." 137 146 9 25 329 1. 2 v 4.4 4 2. 5 R 760, A 700.. 143 151 11 31 286 2. 6 9 4 4 R 700 154 6 24 361 0.9 6
(Iodide Ti-Base) I I v "Minimum bend radius-longitudinal and transverse.
What is claimed is:
1. A titanium base alloy consisting essentially of about: 0.5 to 13% each of aluminum and manganese and at least one beta promoter selected from the group consisting of 0.5 to 40% of molybdenum, vanadium, columbium, tantalum and zirconium, 0.5 to 20% of chromium and tungsten, 0.5 to 7% iron, 0.5 to 5% of cobalt, nickel and copper, and 0.1 to 3% of silicon and beryllium, characterized in having a tensile strength of at least 100,000 psi. and a minimum bend radius of at least 201.
2. A titanium base alloy consisting essentially of about: 0.5 to 13% each of aluminum and manganese, the manganese being present on the high side of its range when aluminum is present on the low side of its range and vice versa, said alloy also containing at least one beta promoter selected from the group consisting of 0.5 to 40% of molybdenum, vanadium, columbium, tantalum and zirconium, 0.5 to 20% of chromium and tungsten, 0.5 to 5% iron, 0.5 to 5% of cobalt, nickel and copper, and 0.1 to 3% of silicon and beryllium, characterized in having a tensile strength of at least 100,000 p.s.i. and a minimum bend radius of at least 20T.
6 References Cited in the file of this patent UNITED STATES PATENTS 2,139,516 Norris Dec. 6, 193s 2,464,836 Thomas Mar. 22, 1949 2,622,023 Frazier Dec. 16, 1952 2,675,309 Vordahl Apr. 13, 1954 2,798,806 Jaifee July 9, 1957 2,810,643 Methe Oct. 22, 1957 FOREIGN PATENTS 718,822 Germany Mar. 24, 1942 OTHER REFERENCES
Claims (1)
1. A TITANIUM BASE ALLOY CONSISTING ESSENTIALLY OF ABOUT: 0.5 TO 13% EACH OF ALUMINUM AND MANGANESES AND AT LEAST ONE BETA PROMOTER SELECTED FROM THE GROUP CONSISTING OF 0.5 TO 40% OF MOLYBDENUM, VANADIUM, COLUMBIUM TANTALUM AND ZIRCONIUM, 0.5 TO 20% OF CHROMIUM AND TUNGSTEN, 0.5 TO 7% IRON, 0.5 TO 5% OF COBALT, NICKLE AND COPPER, AND 0.1 TO 3% OF SILICON AND BERYLLIUM, CHARACTERIZED IN HAVING A TENSILE STRENGHT OF AT LEAST 100,000 P.S.I., AND A MINIMUM BEND RADIUS OF AT LEAST 20T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US702533A US2880089A (en) | 1957-12-13 | 1957-12-13 | Titanium base alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US702533A US2880089A (en) | 1957-12-13 | 1957-12-13 | Titanium base alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2880089A true US2880089A (en) | 1959-03-31 |
Family
ID=24821594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US702533A Expired - Lifetime US2880089A (en) | 1957-12-13 | 1957-12-13 | Titanium base alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2880089A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3161503A (en) * | 1961-09-27 | 1964-12-15 | Titanium Metals Corp | Corrosion resistant alloy |
| US3786806A (en) * | 1972-11-22 | 1974-01-22 | A Johnson | Thermoconstrictive surgical appliance |
| US4111689A (en) * | 1976-02-09 | 1978-09-05 | Franklin Baumgartner | Method of storing hydrogen |
| FR2472153A1 (en) * | 1979-12-20 | 1981-06-26 | Ozdi Kohaszati Uezemek | Sliding shutter for tap-hole on open hearth furnace - where compressed air prevents ingress of molten steel and also stirs melt to reduce steel mfg. time (BR 7.7.81) |
| US4294615A (en) * | 1979-07-25 | 1981-10-13 | United Technologies Corporation | Titanium alloys of the TiAl type |
| US4849168A (en) * | 1986-11-12 | 1989-07-18 | Kawasaki Jukogyo Kabushiki Kaisha | Ti-Al intermetallics containing boron for enhanced ductility |
| GB2266315A (en) * | 1989-09-29 | 1993-10-27 | Gen Electric | Manganese and tungsten-modified titanium aluminium alloys |
| US5792288A (en) * | 1996-01-16 | 1998-08-11 | Mite Ltd. | Titanium alloy with solutive and intermetallic reinforcement |
| US20100269958A1 (en) * | 2003-06-10 | 2010-10-28 | The Boeing Company | Tough, high-strength titanium alloys; methods of heat treating titanium alloys |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2139516A (en) * | 1938-04-25 | 1938-12-06 | Vanadium Corp | Alloys for addition to iron and steel |
| DE718822C (en) * | 1937-09-18 | 1942-03-24 | Wilhelm Kroll Dr Ing | Use of alloys containing titanium |
| US2464836A (en) * | 1944-08-24 | 1949-03-22 | Arcos Corp | Welding |
| US2622023A (en) * | 1951-12-29 | 1952-12-16 | Gen Electric | Titanium-base alloys |
| US2675309A (en) * | 1949-12-03 | 1954-04-13 | Rem Cru Titanium Inc | Titanium base alloys with aluminum and manganese |
| US2798806A (en) * | 1952-08-19 | 1957-07-09 | Rem Cru Titanium Inc | Titanium alloy |
| US2810643A (en) * | 1953-08-13 | 1957-10-22 | Allegheny Ludlum Steel | Titanium base alloys |
-
1957
- 1957-12-13 US US702533A patent/US2880089A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE718822C (en) * | 1937-09-18 | 1942-03-24 | Wilhelm Kroll Dr Ing | Use of alloys containing titanium |
| US2139516A (en) * | 1938-04-25 | 1938-12-06 | Vanadium Corp | Alloys for addition to iron and steel |
| US2464836A (en) * | 1944-08-24 | 1949-03-22 | Arcos Corp | Welding |
| US2675309A (en) * | 1949-12-03 | 1954-04-13 | Rem Cru Titanium Inc | Titanium base alloys with aluminum and manganese |
| US2622023A (en) * | 1951-12-29 | 1952-12-16 | Gen Electric | Titanium-base alloys |
| US2798806A (en) * | 1952-08-19 | 1957-07-09 | Rem Cru Titanium Inc | Titanium alloy |
| US2810643A (en) * | 1953-08-13 | 1957-10-22 | Allegheny Ludlum Steel | Titanium base alloys |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3161503A (en) * | 1961-09-27 | 1964-12-15 | Titanium Metals Corp | Corrosion resistant alloy |
| US3786806A (en) * | 1972-11-22 | 1974-01-22 | A Johnson | Thermoconstrictive surgical appliance |
| US4111689A (en) * | 1976-02-09 | 1978-09-05 | Franklin Baumgartner | Method of storing hydrogen |
| US4294615A (en) * | 1979-07-25 | 1981-10-13 | United Technologies Corporation | Titanium alloys of the TiAl type |
| FR2472153A1 (en) * | 1979-12-20 | 1981-06-26 | Ozdi Kohaszati Uezemek | Sliding shutter for tap-hole on open hearth furnace - where compressed air prevents ingress of molten steel and also stirs melt to reduce steel mfg. time (BR 7.7.81) |
| US4849168A (en) * | 1986-11-12 | 1989-07-18 | Kawasaki Jukogyo Kabushiki Kaisha | Ti-Al intermetallics containing boron for enhanced ductility |
| GB2266315A (en) * | 1989-09-29 | 1993-10-27 | Gen Electric | Manganese and tungsten-modified titanium aluminium alloys |
| GB2266315B (en) * | 1989-09-29 | 1994-03-30 | Gen Electric | Manganese and tungsten-modified titanium aluminum alloys |
| US5792288A (en) * | 1996-01-16 | 1998-08-11 | Mite Ltd. | Titanium alloy with solutive and intermetallic reinforcement |
| US20100269958A1 (en) * | 2003-06-10 | 2010-10-28 | The Boeing Company | Tough, high-strength titanium alloys; methods of heat treating titanium alloys |
| US8262819B2 (en) * | 2003-06-10 | 2012-09-11 | The Boeing Company | Tough, high-strength titanium alloys; methods of heat treating titanium alloys |
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