WO2005108632A1 - Alliage titane-aluminium - Google Patents

Alliage titane-aluminium Download PDF

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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
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.)
Ceased
Application number
PCT/DE2005/000809
Other languages
German (de)
English (en)
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
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
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 MTU Aero Engines GmbH, G4T GmbH filed Critical MTU Aero Engines GmbH
Priority to DE502005001499T priority Critical patent/DE502005001499D1/de
Priority to EP05747547A priority patent/EP1747298B1/fr
Priority to US11/579,642 priority patent/US20080069720A1/en
Priority to PL05747547T priority patent/PL1747298T3/pl
Publication of WO2005108632A1 publication Critical patent/WO2005108632A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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.

Landscapes

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

Abstract

La présente invention concerne un alliage titane-aluminium composé de titane, d'aluminium et de niobium, la teneur en aluminium de cet alliage étant comprise entre 35 et 60 % en poids. Cet alliage peut également contenir 1-100 ppm de chlore et/ou de fluor ainsi que 0,01-1,0 % en poids d'or et/ou d'argent. Ladite invention concerne en outre un élément de construction léger constitué d'un alliage titane-aluminium et l'utilisation d'un alliage titane-aluminium dans la production d'un produit de départ homogène, à grain fin, par un procédé de moulage par centrifugation.
PCT/DE2005/000809 2004-05-07 2005-05-02 Alliage titane-aluminium Ceased WO2005108632A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502005001499T DE502005001499D1 (de) 2004-05-07 2005-05-02 Titan-aluminium-legierung
EP05747547A EP1747298B1 (fr) 2004-05-07 2005-05-02 Alliage titane-aluminium
US11/579,642 US20080069720A1 (en) 2004-05-07 2005-05-02 Titanium-Aluminum Alloy
PL05747547T PL1747298T3 (pl) 2004-05-07 2005-05-02 Stop tytan-glin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022578.8 2004-05-07
DE102004022578A DE102004022578A1 (de) 2004-05-07 2004-05-07 Titan-Aluminium-Legierung

Publications (1)

Publication Number Publication Date
WO2005108632A1 true WO2005108632A1 (fr) 2005-11-17

Family

ID=34969012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000809 Ceased WO2005108632A1 (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
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
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
RU2734225C1 (ru) * 2016-10-21 2020-10-13 Дженерал Электрик Компани Получение титановых сплавов посредством восстановления тетрахлорида титана
WO2018075896A1 (fr) * 2016-10-21 2018-04-26 General Electric Company Production de matériaux d'alliage de titane par réduction de tétrachlorure de titane

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04293745A (ja) * 1991-03-19 1992-10-19 Taiyo Kogyo Kk チタン・アルミニウム合金及びその製造法
EP0580081A1 (fr) * 1992-07-17 1994-01-26 Sumitomo Light Metal Industries Limited Produit preparé à partir d'un composé intermétallique du système Ti-Al ayant une résistance élevée à l'oxydation et à l'usure et procédé pour la fabrication de ce produit

Family Cites Families (2)

* 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
DE19710592A1 (de) * 1997-03-14 1998-09-17 Forschungszentrum Juelich Gmbh Oxidationsbeständige, TiAl-haltige Legierungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04293745A (ja) * 1991-03-19 1992-10-19 Taiyo Kogyo Kk チタン・アルミニウム合金及びその製造法
EP0580081A1 (fr) * 1992-07-17 1994-01-26 Sumitomo Light Metal Industries Limited Produit preparé à partir d'un composé intermétallique du système Ti-Al ayant une résistance élevée à l'oxydation et à l'usure et procédé pour la fabrication de ce produit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
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
DE502005001499D1 (de) 2007-10-25
EP1747298B1 (fr) 2007-09-12
EP1747298A1 (fr) 2007-01-31
US20080069720A1 (en) 2008-03-20
ATE373112T1 (de) 2007-09-15
DE102004022578A1 (de) 2005-12-01
PL1747298T3 (pl) 2008-02-29

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