EP0652297A1 - Alliage fer-aluminium et application de cet alliage - Google Patents

Alliage fer-aluminium et application de cet alliage Download PDF

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Publication number
EP0652297A1
EP0652297A1 EP93118045A EP93118045A EP0652297A1 EP 0652297 A1 EP0652297 A1 EP 0652297A1 EP 93118045 A EP93118045 A EP 93118045A EP 93118045 A EP93118045 A EP 93118045A EP 0652297 A1 EP0652297 A1 EP 0652297A1
Authority
EP
European Patent Office
Prior art keywords
alloy
iron
aluminum
approx
titanium
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.)
Granted
Application number
EP93118045A
Other languages
German (de)
English (en)
Other versions
EP0652297B1 (fr
Inventor
Mohamed Dr. Nazmy
Corrado Noseda
Markus Staubli
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.)
ABB AG Germany
Original Assignee
ABB Management AG
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 ABB Management AG filed Critical ABB Management AG
Priority to DE59309611T priority Critical patent/DE59309611D1/de
Priority to AT93118045T priority patent/ATE180517T1/de
Priority to EP93118045A priority patent/EP0652297B1/fr
Priority to US08/174,352 priority patent/US5411702A/en
Priority to PL94305673A priority patent/PL305673A1/xx
Priority to RU94040155A priority patent/RU2122044C1/ru
Priority to JP27240494A priority patent/JP3517462B2/ja
Priority to KR1019940029070A priority patent/KR950014344A/ko
Priority to CN94118112A priority patent/CN1038051C/zh
Publication of EP0652297A1 publication Critical patent/EP0652297A1/fr
Application granted granted Critical
Publication of EP0652297B1 publication Critical patent/EP0652297B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium

Definitions

  • Iron-aluminum alloys can be used in parts of thermal machines that are subjected to high thermal loads and are subject to oxidizing and / or corrosive effects. There, they are expected to increasingly replace special steels and nickel-based superalloys.
  • the invention is based on the object of developing an iron-aluminum alloy which is distinguished by good mechanical properties at temperatures of more than 700 ° C.
  • the object of the invention is also a suitable use of this alloy.
  • the alloy according to the invention still has mechanical properties which enable it to be used in components which are subject to slight mechanical loads.
  • the alloy according to the invention is characterized by excellent thermal shock resistance and can therefore be used with particular advantage in parts of thermal systems subject to thermal shock, such as in particular as a housing or housing part of a gas turbine or a turbocharger or as a nozzle ring, in particular for a turbocharger.
  • the alloy can be produced very cheaply by casting or by casting and rolling.
  • Another advantage of the alloy according to the invention is that its constituents exclusively contain metals, which are comparatively inexpensive and are available regardless of strategic-political influence.
  • the sole figure shows a diagram in which the tensile strength UTS [MPa] of an alloy I according to the invention and an alloy II according to the prior art is shown as a function of the temperature T [° C.].
  • Alloys I and II shown in the figure have the following compositions: Alloy I (alloy according to a preferred embodiment of the invention): component At.% aluminum 16.00 chrome 5.00 niobium 1.00 Silicon 1.00 boron 3.53 titanium 1.51 carbon 300ppm zirconium 100ppm iron rest Alloy II (state of the art alloy) component At%. Silicon 4.00 carbon 3.35 molybdenum 1.00 manganese 0.30 phosphorus 0.01 sulfur 0.05 iron rest
  • Alloy I was melted in an arc furnace under argon as a protective gas.
  • the individual elements with a degree of purity of more than 99% served as starting materials.
  • the melt was poured into a cast body approximately 100 mm in diameter and approximately 100 mm high.
  • the cast body was melted again under vacuum and also under vacuum in the form of round bars with a diameter of approx. 12 mm and a length of approx. 70 mm, in the form of carrots with a minimum diameter of approx. 10 mm and a maximum diameter of approx. 16 mm and a length of approx. 65 mm or in the form of disc-shaped discs with a disc diameter of 80 mm, a disc thickness of up to 14 mm and a radius at the edge of the disc of approx.
  • test specimens for tensile tests were made from the round bars and carrots. The disks were used to determine the thermal shock resistance.
  • Correspondingly sized test specimens for determining the mechanical strength and the thermal shock resistance were made from the commercially available alloy II, which is used to a large extent as a material for gas turbine casings, and a related alloy with an approximately 25% lower silicon content and an approximately 40% lower content Made of molybdenum.
  • the thermal shock resistance according to Glenny was determined with the help of the disc-shaped discs. Two disks per alloy were cyclically heated to 650 ° C in a fluid bed and then cooled to 200 C with compressed air. After a certain number of such heating and cooling cycles, the number of cracks possibly forming at the edge of the panes with a crack length greater than 2 mm was then counted. The total number of cracks occurring on both disks as a function of the number of cycles is given below for alloy I according to the invention and the two alloys according to the prior art.
  • the alloy according to the invention outperforms comparable usable alloys according to the prior art not only in terms of mechanical strength at temperatures higher than 700 ° C., but also in terms of thermal shock resistance.
  • the alloy according to the invention can therefore be used with particular advantage as a material for components of thermal systems which still have a relatively high mechanical strength at temperatures between 700.degree. C. and 800.degree. C. and which, like gas turbine housings, are subject to severe temperature changes.
  • Alloying 0.1 to 10 at% chromium further increases the thermal shock, oxidation and corrosion resistance. Chromium also improves ductility. However, additions of more than 10 at.% Cr generally deteriorate the mechanical properties again.
  • Alloying 0.1 to 2 at% of niobium increases the hardness and strength of the alloy according to the invention.
  • tungsten and / or tantalum can also be added in a proportion of 0.1 to 2 at%.
  • a proportion of 0.1 to 2 at% silicon improves the castability of the alloy according to the invention and has a favorable effect on its resistance to oxidation and corrosion. Silicon also increases hardness.
  • the thermal shock, oxidation and corrosion resistance of the alloy according to the invention is considerably improved. This is primarily due to the fact that finely divided titanium diboride TiB2 then forms in the alloy.
  • a protective layer predominantly containing aluminum oxides forms on the surface of the alloy according to the invention.
  • the titanium diboride phase contributes to a substantial stabilization of this protective layer by the titanium diboride phase engaging in the protective layer, for example in the form of acicular crystallites from the alloy, and thereby causing the protective layer to adhere particularly well to the underlying alloy.
  • the proportion of boron should not be more than 5 at% and that of titanium should not be more than 2 at%, since otherwise too much titanium diboride will form and the alloy will become brittle. If the proportion of boron is below 0.1 at% and that of titanium below 0.01 at%, the thermal shock, oxidation and corrosion resistance of the alloy according to the invention deteriorate considerably.
  • Alloys with the following composition have particularly good values of mechanical strength and thermal shock resistance: 14 - 16 aluminum 0.5 - 1.5 niobium 4 - 6 chrome 0.5-1.5 silicon 3 - 4 boron 1 - 2 titanium approx. 300 ppm carbon approx. 100 ppm zirconium Rest of iron.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Supercharger (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP93118045A 1993-11-08 1993-11-08 Alliage fer-aluminium et application de cet alliage Expired - Lifetime EP0652297B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE59309611T DE59309611D1 (de) 1993-11-08 1993-11-08 Eisen- Aluminium-Legierung und Verwendung dieser Legierung
AT93118045T ATE180517T1 (de) 1993-11-08 1993-11-08 Eisen- aluminium-legierung und verwendung dieser legierung
EP93118045A EP0652297B1 (fr) 1993-11-08 1993-11-08 Alliage fer-aluminium et application de cet alliage
US08/174,352 US5411702A (en) 1993-11-08 1993-12-28 Iron-aluminum alloy for use as thermal-shock resistance material
PL94305673A PL305673A1 (en) 1993-11-08 1994-11-02 Fe-al alloy
RU94040155A RU2122044C1 (ru) 1993-11-08 1994-11-04 Сплав железа с алюминием
JP27240494A JP3517462B2 (ja) 1993-11-08 1994-11-07 鉄−アルミニウム合金およびこの合金の用途
KR1019940029070A KR950014344A (ko) 1993-11-08 1994-11-07 철-알루미늄 합금 및 그 합금의 용도
CN94118112A CN1038051C (zh) 1993-11-08 1994-11-08 铁铝合金及其用途

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93118045A EP0652297B1 (fr) 1993-11-08 1993-11-08 Alliage fer-aluminium et application de cet alliage

Publications (2)

Publication Number Publication Date
EP0652297A1 true EP0652297A1 (fr) 1995-05-10
EP0652297B1 EP0652297B1 (fr) 1999-05-26

Family

ID=8213403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93118045A Expired - Lifetime EP0652297B1 (fr) 1993-11-08 1993-11-08 Alliage fer-aluminium et application de cet alliage

Country Status (9)

Country Link
US (1) US5411702A (fr)
EP (1) EP0652297B1 (fr)
JP (1) JP3517462B2 (fr)
KR (1) KR950014344A (fr)
CN (1) CN1038051C (fr)
AT (1) ATE180517T1 (fr)
DE (1) DE59309611D1 (fr)
PL (1) PL305673A1 (fr)
RU (1) RU2122044C1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19603515C1 (de) * 1996-02-01 1996-12-12 Castolin Sa Spritzwerkstoff auf Eisenbasis zum Herstellen einer korrosionsbeständigen Beschichtung, Herstellungsverfahren für die Beschichtung sowie Verwendung der Schicht
EP2239349A1 (fr) * 2009-04-10 2010-10-13 Schüttenhelm, Martin Collecteur de gaz d'échappement ou boîtier de turbosoufflante en alliage d'acier FeAI
DE102009020922A1 (de) 2009-05-12 2010-11-18 Christoph Henrik Sterzel Die Anwendung von niedrigviskosem Schwefel als Wärmeträger- und Wärmespeicherflüssigkeit
WO2011083053A1 (fr) 2010-01-05 2011-07-14 Basf Se Liquides caloporteurs et accumulateurs thermiques à base de polysulfures pour des températures extrêmement élevées

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6436163B1 (en) * 1994-05-23 2002-08-20 Pall Corporation Metal filter for high temperature applications
DE19753876A1 (de) * 1997-12-05 1999-06-10 Asea Brown Boveri Eisenaluminidbeschichtung und Verfahren zum Aufbringen einer Eisenaluminidbeschichtung
US6114058A (en) * 1998-05-26 2000-09-05 Siemens Westinghouse Power Corporation Iron aluminide alloy container for solid oxide fuel cells
US7754342B2 (en) * 2005-12-19 2010-07-13 General Electric Company Strain tolerant corrosion protecting coating and spray method of application
JP2014523501A (ja) * 2011-06-07 2014-09-11 ボーグワーナー インコーポレーテッド ターボチャージャ及びそのための構成要素
CN105624535A (zh) * 2015-12-09 2016-06-01 上海大学 Fe-Al-Mn-Si合金的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2387980A (en) * 1945-02-17 1945-10-30 Hugh S Cooper Electrical resistance alloys
US3026197A (en) * 1959-02-20 1962-03-20 Westinghouse Electric Corp Grain-refined aluminum-iron alloys

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA648141A (en) * 1962-09-04 H. Schramm Jacob Aluminum-chromium-iron resistance alloys
CA648140A (en) * 1962-09-04 Westinghouse Electric Corporation Grain-refined aluminum-iron alloys
JPS4841918A (fr) * 1971-10-04 1973-06-19
CA1298492C (fr) * 1986-04-30 1992-04-07 Haruo Shimada Acier non magnetique resistant a la corrosion par l'eau de mer
US4844865A (en) * 1986-12-02 1989-07-04 Nippon Steel Corporation Seawater-corrosion-resistant non-magnetic steel materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2387980A (en) * 1945-02-17 1945-10-30 Hugh S Cooper Electrical resistance alloys
US3026197A (en) * 1959-02-20 1962-03-20 Westinghouse Electric Corp Grain-refined aluminum-iron alloys

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19603515C1 (de) * 1996-02-01 1996-12-12 Castolin Sa Spritzwerkstoff auf Eisenbasis zum Herstellen einer korrosionsbeständigen Beschichtung, Herstellungsverfahren für die Beschichtung sowie Verwendung der Schicht
WO1997028289A1 (fr) * 1996-02-01 1997-08-07 Castolin S.A. Materiau de pulverisation a base de fer pour produire un revetement anticorrosion, procede de production de ce revetement et utilisation de la couche
EP2239349A1 (fr) * 2009-04-10 2010-10-13 Schüttenhelm, Martin Collecteur de gaz d'échappement ou boîtier de turbosoufflante en alliage d'acier FeAI
DE102009020922A1 (de) 2009-05-12 2010-11-18 Christoph Henrik Sterzel Die Anwendung von niedrigviskosem Schwefel als Wärmeträger- und Wärmespeicherflüssigkeit
WO2011083053A1 (fr) 2010-01-05 2011-07-14 Basf Se Liquides caloporteurs et accumulateurs thermiques à base de polysulfures pour des températures extrêmement élevées

Also Published As

Publication number Publication date
PL305673A1 (en) 1995-05-15
ATE180517T1 (de) 1999-06-15
KR950014344A (ko) 1995-06-15
JPH07238353A (ja) 1995-09-12
CN1106467A (zh) 1995-08-09
CN1038051C (zh) 1998-04-15
RU2122044C1 (ru) 1998-11-20
US5411702A (en) 1995-05-02
DE59309611D1 (de) 1999-07-01
JP3517462B2 (ja) 2004-04-12
EP0652297B1 (fr) 1999-05-26
RU94040155A (ru) 1997-02-27

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