WO2005108632A1 - Titanium/aluminium alloy - Google Patents
Titanium/aluminium alloy Download PDFInfo
- Publication number
- WO2005108632A1 WO2005108632A1 PCT/DE2005/000809 DE2005000809W WO2005108632A1 WO 2005108632 A1 WO2005108632 A1 WO 2005108632A1 DE 2005000809 W DE2005000809 W DE 2005000809W WO 2005108632 A1 WO2005108632 A1 WO 2005108632A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- titanium
- aluminum
- alloy
- content
- aluminum alloy
- Prior art date
Links
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 present invention relates to a titanium-aluminum alloy having an alloy composition of titanium, aluminum and niobium.
- the invention further relates to a lightweight construction component of a titanium-aluminum alloy and the use of a titanium-aluminum alloy for producing a homogeneous, fine-grained starting material by means of a centrifugal casting process.
- Alloy compositions of titanium, aluminum and niobium are known. Such alloys are used in particular for the production of high-temperature-resistant lightweight components, which in addition must have a very low weight and, secondly, a high strength.
- DE 197 35 841 A1 describes an alloy based on titanium aluminides with an alloy composition of titanium, aluminum and niobium.
- the proportion of niobium can vary in the known alloy, namely between 5 and 10 atom%.
- the disclosed alloys always have a proportion of 45 atom% of aluminum. This corresponds to an aluminum content between 28 and 30 wt .-%.
- DE 200 19 886 Ul also describes an alloy based on titanium aluminides produced using melt and powder metallurgy techniques with an alloy composition of titanium, aluminum and niobium, the aluminum content of the alloy being in the range between 45.5 and 49 atom%. lies.
- the niobium content in this known alloy may range between 4 and 10 at%.
- the proportion of aluminum between 28 and 30 wt .-%.
- DE 40 37 959 A1 discloses a niobium-modified titanium-aluminum alloy consisting essentially of titanium, aluminum and niobium, the alloys comprising 37 to 48 atomic% titanium, 46 to 49 atomic% aluminum and 6 to 14 Atomic% of niobium.
- a disadvantage of these known alloys of titanium and aluminum is their low temperature resistance with respect to creep, fatigue and oxidation resistance. Furthermore, the known alloys are difficult to process due to their brittleness, especially through processing methods such as casting or forging. It is therefore an object of the present invention to provide a titanium-aluminum alloy having an alloy composition of titanium, aluminum and niobium which does not have these disadvantages, that is, an alloy having high temperature resistance to creep, fatigue, ie, strength and oxidation resistance.
- a titanium-aluminum alloy according to the invention having an alloy composition of titanium, aluminum and niobium has an aluminum content in the range between 35 and 60% by weight.
- the advantage of the alloy according to the invention is that due to the higher proportions of aluminum in comparison with the previously known titanium, aluminum and niobium alloy compositions, an unexpectedly high strength or temperature resistance with regard to creep, fatigue and a corresponding oxidation resistance is achieved.
- the aluminum content of the alloy is in the range between 43 and 45 wt .-%.
- the niobium content of the alloy is advantageously in the range between 2 and 16 wt .-%, preferably in a range between 6 and 12 wt .-%.
- the alloy contains at least one halogen, in particular proportions of chlorine and / or fluorine.
- the addition of chlorine and / or fluorine advantageously leads to a higher oxidation resistance of the alloy.
- the chlorine content and / or fluorine content is between 1 and 100 ppm, preferably between 2 and 10 ppm.
- titanium-aluminum alloy according to the invention contains these shares of gold and / or silver.
- the addition of gold and / or silver also results in a higher oxidation resistance of the alloy.
- the gold content and / or silver content is between 0.01 and 2.0 wt .-%, preferably between 0.01 and 1.0 wt .-%.
- an increase in strength can be increased to 400 to 600 MPa / R.T. at 800 ° C.
- the oxidation resistance is for 800 ° C at 10,000 hours.
- the alloys of the invention can be processed very well, d. H. It is a crack-free extrusion and forging, a segregation-free melting and pouring possible.
- Lightweight titanium-aluminum alloy components according to the above-described compositions also have high temperature resistance, particularly in terms of fatigue and oxidation resistance, and high strength.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/579,642 US20080069720A1 (en) | 2004-05-07 | 2005-05-02 | Titanium-Aluminum Alloy |
DE502005001499T DE502005001499D1 (en) | 2004-05-07 | 2005-05-02 | TITANIUM ALUMINUM ALLOY |
PL05747547T PL1747298T3 (en) | 2004-05-07 | 2005-05-02 | Titanium/aluminium alloy |
EP05747547A EP1747298B1 (en) | 2004-05-07 | 2005-05-02 | Titanium/aluminium alloy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004022578.8 | 2004-05-07 | ||
DE102004022578A DE102004022578A1 (en) | 2004-05-07 | 2004-05-07 | Titanium-aluminum alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005108632A1 true WO2005108632A1 (en) | 2005-11-17 |
Family
ID=34969012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/000809 WO2005108632A1 (en) | 2004-05-07 | 2005-05-02 | Titanium/aluminium alloy |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080069720A1 (en) |
EP (1) | EP1747298B1 (en) |
AT (1) | ATE373112T1 (en) |
DE (2) | DE102004022578A1 (en) |
PL (1) | PL1747298T3 (en) |
WO (1) | WO2005108632A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006024886A1 (en) * | 2006-05-24 | 2007-11-29 | Dechema Gesellschaft Für Chemische Technik Und Biotechnologie E.V. | Increasing the oxidation resistance of TiAl alloys by treatment with fluorine |
DE102008052247A1 (en) | 2008-10-18 | 2010-04-22 | Mtu Aero Engines Gmbh | Component for a gas turbine and method for producing the component |
US9957836B2 (en) | 2012-07-19 | 2018-05-01 | Rti International Metals, Inc. | Titanium alloy having good oxidation resistance and high strength at elevated temperatures |
WO2016072434A1 (en) | 2014-11-04 | 2016-05-12 | 株式会社神戸製鋼所 | METHOD FOR DEOXIDIZING Al-Nb-Ti ALLOY |
JP6556554B2 (en) * | 2014-11-04 | 2019-08-07 | 株式会社神戸製鋼所 | Method for deoxidizing Al-Nb-Ti alloy |
AU2017345609B2 (en) * | 2016-10-21 | 2021-12-09 | General Electric Company | Producing titanium alloy materials through reduction of titanium tetrachloride |
RU2725589C1 (en) * | 2016-10-21 | 2020-07-02 | Дженерал Электрик Компани | Obtaining titanium alloy materials by reducing titanium tetrachloride |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04293745A (en) * | 1991-03-19 | 1992-10-19 | Taiyo Kogyo Kk | Titanium-aluminum alloy and its production |
EP0580081A1 (en) * | 1992-07-17 | 1994-01-26 | Sumitomo Light Metal Industries Limited | A product of a Ti-Al system intermetallic compound having a superior oxidation resistance and wear resistance and a method of manufacturing the product |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4294615A (en) * | 1979-07-25 | 1981-10-13 | United Technologies Corporation | Titanium alloys of the TiAl type |
DE19710592A1 (en) * | 1997-03-14 | 1998-09-17 | Forschungszentrum Juelich Gmbh | Oxidation resistant titanium-aluminium alloy |
-
2004
- 2004-05-07 DE DE102004022578A patent/DE102004022578A1/en not_active Withdrawn
-
2005
- 2005-05-02 AT AT05747547T patent/ATE373112T1/en not_active IP Right Cessation
- 2005-05-02 WO PCT/DE2005/000809 patent/WO2005108632A1/en active IP Right Grant
- 2005-05-02 DE DE502005001499T patent/DE502005001499D1/en active Active
- 2005-05-02 PL PL05747547T patent/PL1747298T3/en unknown
- 2005-05-02 EP EP05747547A patent/EP1747298B1/en not_active Not-in-force
- 2005-05-02 US US11/579,642 patent/US20080069720A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04293745A (en) * | 1991-03-19 | 1992-10-19 | Taiyo Kogyo Kk | Titanium-aluminum alloy and its production |
EP0580081A1 (en) * | 1992-07-17 | 1994-01-26 | Sumitomo Light Metal Industries Limited | A product of a Ti-Al system intermetallic compound having a superior oxidation resistance and wear resistance and a method of manufacturing the product |
Non-Patent Citations (2)
Title |
---|
DONG, LIMIN ET AL: "Influences of alloying elements W, Mo, Cr and Nb on retained beta phase in 47Al based near .gamma.-TiAl alloys", JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (SHENYANG, CHINA) , 19(4), 330-333 CODEN: JSCTEQ; ISSN: 1005-0302, 2003, XP009052049 * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 108 (C - 1032) 5 March 1993 (1993-03-05) * |
Also Published As
Publication number | Publication date |
---|---|
ATE373112T1 (en) | 2007-09-15 |
EP1747298B1 (en) | 2007-09-12 |
DE102004022578A1 (en) | 2005-12-01 |
US20080069720A1 (en) | 2008-03-20 |
PL1747298T3 (en) | 2008-02-29 |
DE502005001499D1 (en) | 2007-10-25 |
EP1747298A1 (en) | 2007-01-31 |
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