EP1747298B1 - Alliage titane-aluminium - Google Patents

Alliage titane-aluminium Download PDF

Info

Publication number
EP1747298B1
EP1747298B1 EP05747547A EP05747547A EP1747298B1 EP 1747298 B1 EP1747298 B1 EP 1747298B1 EP 05747547 A EP05747547 A EP 05747547A EP 05747547 A EP05747547 A EP 05747547A EP 1747298 B1 EP1747298 B1 EP 1747298B1
Authority
EP
European Patent Office
Prior art keywords
titanium
alloy
content
aluminum
aluminum 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.)
Not-in-force
Application number
EP05747547A
Other languages
German (de)
English (en)
Other versions
EP1747298A1 (fr
Inventor
Manfred Renkel
Wilfried Smarsly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G4T GmbH
Original Assignee
G4T GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G4T GmbH filed Critical G4T GmbH
Priority to PL05747547T priority Critical patent/PL1747298T3/pl
Publication of EP1747298A1 publication Critical patent/EP1747298A1/fr
Application granted granted Critical
Publication of EP1747298B1 publication Critical patent/EP1747298B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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. That's how it describes DE 197 35 841 A1 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 .-%.
  • the DE 200 19 886 U1 describes an alloy based on titanium aluminides prepared using melt and powder metallurgy techniques having an alloy composition of titanium, aluminum and niobium, the aluminum content of the alloy being in the range of 45.5 to 49 at%.
  • the niobium content in this known alloy may range between 4 and 10 at%.
  • the proportion of aluminum between 28 and 30 wt .-%.
  • a niobium modified titanium-aluminum alloy consisting essentially of titanium, aluminum and niobium is known, the alloys comprising 37 to 48 atomic% titanium, 46 to 49 atomic% aluminum and 6 to 14 atomic% niobium.
  • An inventive titanium-aluminum alloy having an alloy composition of titanium, aluminum and niobium is defined in claim 1.
  • the advantage of the alloy according to the invention is that of the titanium compared to the previously known alloy.
  • Aluminum and niobium higher levels of aluminum unexpectedly high strength or temperature resistance in terms of 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 in the range between 2 and 16 wt .-%, preferably in a range between 6 and 12 wt .-%.
  • the alloy contains. 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.
  • the titanium-aluminum alloy according to the invention contains these shares of gold and / or silver.
  • the addition of gold and / or silver also leads to 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.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Materials For Medical Uses (AREA)

Claims (10)

  1. Alliage titane-aluminium avec une composition d'alliage comprenant du titane, de l'aluminium et du niobium, la teneur en aluminium de l'alliage étant comprise entre 43 et 45 % pondéral, la teneur en niobium de l'alliage étant comprise entre 2 et 16 % pondéral, en tant que matière résiduelle du titane et en outre en option étant contenu(s):
    a) du chlore et/ou du fluor avec une teneur de 1 à 100 ppm et/ou
    b) de l'or et/ou de l'argent avec une teneur de 0,01 à 2,0 % pondéral.
  2. Alliage titane-aluminium selon la revendication 1, caractérisé en ce que la teneur en niobium de l'alliage est comprise entre 6 et 12 % pondéral.
  3. Alliage titane-aluminium selon l'une des revendications précédentes, caractérisé en ce que l'alliage contient du chlore et/ou du fluor.
  4. Alliage titane-aluminium selon la revendication 3, caractérisé en ce que la teneur en chlore et/ou la teneur en fluor est comprise entre 1 et 100 ppm.
  5. Alliage titane-aluminium selon la revendication 4, caractérisé en ce que la teneur en chlore et/ou la teneur en fluor est comprise entre 2 et 10 ppm.
  6. Alliage titane-aluminium selon l'une des revendications précédentes, caractérisé en ce que l'alliage contient de l'or et/ou de l'argent.
  7. Alliage titane-aluminium selon la revendication 6, caractérisé en ce que la teneur en or et/ou la teneur en argent est comprise entre 0,01 et 2,0 % pondéral.
  8. Alliage titane-aluminium selon la revendication 7, caractérisé en ce que la teneur en or et/ou la teneur en argent est comprise entre 0,01 et 1,0% pondéral.
  9. Des composants légers en alliage titane-aluminium selon l'une des revendications précédentes.
  10. Utilisation d'un alliage titane-aluminium selon l'une des revendications 1 à 8 pour la fabrication d'un matériau de base homogène à grains fins par coulée centrifuge.
EP05747547A 2004-05-07 2005-05-02 Alliage titane-aluminium Not-in-force EP1747298B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05747547T PL1747298T3 (pl) 2004-05-07 2005-05-02 Stop tytan-glin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022578A DE102004022578A1 (de) 2004-05-07 2004-05-07 Titan-Aluminium-Legierung
PCT/DE2005/000809 WO2005108632A1 (fr) 2004-05-07 2005-05-02 Alliage titane-aluminium

Publications (2)

Publication Number Publication Date
EP1747298A1 EP1747298A1 (fr) 2007-01-31
EP1747298B1 true EP1747298B1 (fr) 2007-09-12

Family

ID=34969012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05747547A Not-in-force EP1747298B1 (fr) 2004-05-07 2005-05-02 Alliage titane-aluminium

Country Status (6)

Country Link
US (1) US20080069720A1 (fr)
EP (1) EP1747298B1 (fr)
AT (1) ATE373112T1 (fr)
DE (2) DE102004022578A1 (fr)
PL (1) PL1747298T3 (fr)
WO (1) WO2005108632A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006024886A1 (de) * 2006-05-24 2007-11-29 Dechema Gesellschaft Für Chemische Technik Und Biotechnologie E.V. Erhöhung der Oxidationsbeständigkeit von TiAl-Legierungen durch die Behandlung mit Fluor
DE102008052247A1 (de) 2008-10-18 2010-04-22 Mtu Aero Engines Gmbh Bauteil für eine Gasturbine und Verfahren zur Herstellung des Bauteils
US9957836B2 (en) 2012-07-19 2018-05-01 Rti International Metals, Inc. Titanium alloy having good oxidation resistance and high strength at elevated temperatures
JP6556554B2 (ja) * 2014-11-04 2019-08-07 株式会社神戸製鋼所 Ａｌ−Ｎｂ−Ｔｉ系合金の脱酸方法
WO2016072434A1 (fr) 2014-11-04 2016-05-12 株式会社神戸製鋼所 PROCÉDÉ DE NEUTRALISATION D'UN ALLIAGE D'Al-Nb-Ti
WO2018075887A1 (fr) * 2016-10-21 2018-04-26 General Electric Company Production de matériaux en alliage de titane par réduction de tétrachlorure de titane
US11193185B2 (en) 2016-10-21 2021-12-07 General Electric Company Producing titanium alloy materials through reduction of titanium tetrachloride

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
JP3789944B2 (ja) * 1991-03-19 2006-06-28 大陽工業株式会社 チタン・アルミニウム合金の製造法
US5451366A (en) * 1992-07-17 1995-09-19 Sumitomo Light Metal Industries, Ltd. Product of a halogen containing Ti-Al system intermetallic compound having a superior oxidation and wear resistance
DE19710592A1 (de) * 1997-03-14 1998-09-17 Forschungszentrum Juelich Gmbh Oxidationsbeständige, TiAl-haltige Legierungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20080069720A1 (en) 2008-03-20
EP1747298A1 (fr) 2007-01-31
DE102004022578A1 (de) 2005-12-01
ATE373112T1 (de) 2007-09-15
PL1747298T3 (pl) 2008-02-29
WO2005108632A1 (fr) 2005-11-17
DE502005001499D1 (de) 2007-10-25

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