EP0465686A1 - Alliage résistant à l'oxydation et à la corrosion pour pièces utilisables à des températures intermédiaires et basés sur le trialuminiure de fer (Fe3Al) dopé - Google Patents

Alliage résistant à l'oxydation et à la corrosion pour pièces utilisables à des températures intermédiaires et basés sur le trialuminiure de fer (Fe3Al) dopé Download PDF

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Publication number
EP0465686A1
EP0465686A1 EP90113008A EP90113008A EP0465686A1 EP 0465686 A1 EP0465686 A1 EP 0465686A1 EP 90113008 A EP90113008 A EP 90113008A EP 90113008 A EP90113008 A EP 90113008A EP 0465686 A1 EP0465686 A1 EP 0465686A1
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EP
European Patent Office
Prior art keywords
rest
atom
oxidation
alloy
alloys
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.)
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Application number
EP90113008A
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German (de)
English (en)
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EP0465686B1 (fr
Inventor
Mohamed Dr. Nazmy
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 Asea Brown Boveri Ltd
ABB AB
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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Publication date
Application filed by ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Priority to DE59007276T priority Critical patent/DE59007276D1/de
Priority to EP90113008A priority patent/EP0465686B1/fr
Priority to US07/721,273 priority patent/US5158744A/en
Priority to JP16309891A priority patent/JP3229339B2/ja
Priority to CS912067A priority patent/CZ282696B6/cs
Priority to PL91290941A priority patent/PL166845B1/pl
Priority to SU915001206A priority patent/RU1839684C/ru
Priority to KR1019910011463A priority patent/KR100205263B1/ko
Publication of EP0465686A1 publication Critical patent/EP0465686A1/fr
Application granted granted Critical
Publication of EP0465686B1 publication Critical patent/EP0465686B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

  • Alloys for the medium temperature range for thermal machines based on intermetallic compounds which are suitable for directional solidification, replace stainless steels and partly supplement the conventional nickel-based superalloys or replace other intermetallic compounds.
  • the invention relates to the further development and improvement of the alloys based on an intermetallic compound of the iron aluminide Fe 3 A1 type with further additives which improve the mechanical properties (strength, toughness, ductility).
  • the invention relates to an oxidation and corrosion-resistant alloy for components for a medium temperature range based on doped iron aluminide Fe 3 Al.
  • Nickel aluminides and titanium aluminides which partially supplement or replace classic nickel-based superalloys, are generally known.
  • the invention has for its object to provide a comparatively inexpensive alloy with high oxidation and corrosion resistance in the medium temperature range (300 to 700 C) and at the same time sufficient heat resistance and sufficient toughness at room temperature and in the lower temperature range, which is easy to cast and also for directed Solidification is suitable.
  • the alloy is said to consist essentially of a comparatively high-melting intermetallic compound with further additives.
  • the Vickers hardness decreased to a small extent in order to reach or exceed the original value of the Nb-free alloys again at approx. 1 at.% Nb.
  • the individual elements with a purity of 99.99% served as the starting materials.
  • the melt became a cast blank of approx. Cast 60 mm in diameter and approx. 80 mm in height.
  • the blank was melted again under protective gas and also forced under solidification to solidify in the form of rods with a diameter of approximately 8 mm and a length of approximately 80 mm.
  • the bars were processed directly into pressure samples for short-term tests without subsequent heat treatment.
  • the mechanical properties achieved were measured as a function of the test temperature.
  • a further improvement of the mechanical properties through a suitable heat treatment is within the realms of possibility. There is also the possibility of improvement by directional solidification, for which the alloy is particularly suitable.
  • the melt was poured off analogously to embodiment 1, melted again under argon and forced to solidify in the form of a rod.
  • the dimensions of the rods corresponded to embodiment 1.
  • the rods were processed directly into pressure samples without subsequent heat treatment.
  • the values of the mechanical properties as a function of the test temperature thus approximately corresponded to those of Example 1. These values can be further improved by heat treatment.
  • Example 2 The melt was poured off as in Example 1, melted again under argon and cast into prisms of square cross section (8 mm ⁇ 8 mm ⁇ 100 mm). Test specimens for pressure, hardness and impact tests were produced from these prisms. The mechanical properties corresponded approximately to those of the previous examples. Heat treatment revealed
  • Embodiment 9 is a diagrammatic representation of Embodiment 9:
  • the oxidation resistance is further increased.
  • the influence on the mechanical properties seems to be different, depending on which other alloy components are still present and the type of crystal structure in detail.
  • the Cr seems to have a favorable effect with certain contents of further additional doping elements. Additions of more than 10 at.% Cr generally deteriorate the mechanical properties again.
  • the element Nb increases hardness and strength in certain areas.
  • the ductility (elongation at break) passes through a maximum for certain alloys at 1 atom% Nb.
  • Alloy B generally attempts to increase ductility. However, its effects appear to be beneficial overall only in the presence of certain other elements. At low B contents, the hardness drops slightly in order to increase again at contents of more than 2 at%. At very high B levels, this appears to be due to the formation of hard borides. The elongation at break of certain alloys runs at 2 at% B through a characteristic maximum. B contents of more than 2 at.% Are therefore not very useful. You can usually deal with max. Satisfy 1 at%.
  • Si improves the castability and has a favorable effect on the resistance to oxidation. It has a hardness-increasing effect in practically all alloys and consistently compensates for the drop in strength caused by B additives.
  • the invention is not restricted to the exemplary embodiments.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Powder Metallurgy (AREA)
EP90113008A 1990-07-07 1990-07-07 Alliage résistant à l'oxydation et à la corrosion pour pièces utilisables à des températures intermédiaires et basés sur le trialuminiure de fer (Fe3Al) dopé Expired - Lifetime EP0465686B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE59007276T DE59007276D1 (de) 1990-07-07 1990-07-07 Oxydations- und korrosionsbeständige Legierung für Bauteile für einen mittleren Temperaturbereich auf der Basis von dotiertem Eisenaluminid Fe3Al.
EP90113008A EP0465686B1 (fr) 1990-07-07 1990-07-07 Alliage résistant à l'oxydation et à la corrosion pour pièces utilisables à des températures intermédiaires et basés sur le trialuminiure de fer (Fe3Al) dopé
US07/721,273 US5158744A (en) 1990-07-07 1991-06-26 Oxidation- and corrosion-resistant alloy for components for a medium temperature range based on doped iron aluminide, Fe3 Al
JP16309891A JP3229339B2 (ja) 1990-07-07 1991-07-03 添加された鉄アルミニドＦｅ３Ａｌをベースにした中間温度領域で使用する部材に対する耐酸化性で耐腐食性の合金
CS912067A CZ282696B6 (cs) 1990-07-07 1991-07-04 Slitina odolná proti oxydaci a korozi pro konstrukční součásti pro střední teplotní rozsah na bázi dotovaného aluminidu železa Fe3Al
PL91290941A PL166845B1 (pl) 1990-07-07 1991-07-04 Stop odporny na utlenianie i korozje o snowie glinku zelaza PL PL
SU915001206A RU1839684C (ru) 1990-07-07 1991-07-05 Коррозионно-стойкий конструкционный сплав дл деталей термических машин
KR1019910011463A KR100205263B1 (ko) 1990-07-07 1991-07-06 도핑 Fe3AL 기재의, 중간 온도 범위용 부품용의 내산화성 및 내식성 합금

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90113008A EP0465686B1 (fr) 1990-07-07 1990-07-07 Alliage résistant à l'oxydation et à la corrosion pour pièces utilisables à des températures intermédiaires et basés sur le trialuminiure de fer (Fe3Al) dopé

Publications (2)

Publication Number Publication Date
EP0465686A1 true EP0465686A1 (fr) 1992-01-15
EP0465686B1 EP0465686B1 (fr) 1994-09-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113008A Expired - Lifetime EP0465686B1 (fr) 1990-07-07 1990-07-07 Alliage résistant à l'oxydation et à la corrosion pour pièces utilisables à des températures intermédiaires et basés sur le trialuminiure de fer (Fe3Al) dopé

Country Status (8)

Country Link
US (1) US5158744A (fr)
EP (1) EP0465686B1 (fr)
JP (1) JP3229339B2 (fr)
KR (1) KR100205263B1 (fr)
CZ (1) CZ282696B6 (fr)
DE (1) DE59007276D1 (fr)
PL (1) PL166845B1 (fr)
RU (1) RU1839684C (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587960A1 (fr) * 1992-09-16 1994-03-23 Sulzer Innotec Ag Fabrication de matériaux du type aluminiure de fer
EP0602904A1 (fr) * 1992-12-15 1994-06-22 Trw Inc. Soupape d'admission pour moteur à combustion interne à base de fer et d'aluminium
EP0609682A1 (fr) * 1993-02-05 1994-08-10 ABB Management AG Alliage résistant à l'oxydation et à la corrosion, à base l'aluminiure de fer dopé et application de cet alliage
RU2122044C1 (ru) * 1993-11-08 1998-11-20 Асеа Браун Бовери АГ Сплав железа с алюминием
CN1059713C (zh) * 1996-01-22 2000-12-20 东南大学 铁铝基高电阻电热合金
CN113528926A (zh) * 2021-06-11 2021-10-22 南京理工大学 一种定向FeAl基合金及其制备方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1036077C (zh) * 1993-12-30 1997-10-08 北京科技大学 改善轧态铁三铝基金属间化合物合金中温持久性能的方法
US6436163B1 (en) * 1994-05-23 2002-08-20 Pall Corporation Metal filter for high temperature applications
US5620651A (en) * 1994-12-29 1997-04-15 Philip Morris Incorporated Iron aluminide useful as electrical resistance heating elements
US5595706A (en) * 1994-12-29 1997-01-21 Philip Morris Incorporated Aluminum containing iron-base alloys useful as electrical resistance heating elements
US5653032A (en) * 1995-12-04 1997-08-05 Lockheed Martin Energy Systems, Inc. Iron aluminide knife and method thereof
US6280682B1 (en) 1996-01-03 2001-08-28 Chrysalis Technologies Incorporated Iron aluminide useful as electrical resistance heating elements
US6033623A (en) * 1996-07-11 2000-03-07 Philip Morris Incorporated Method of manufacturing iron aluminide by thermomechanical processing of elemental powders
US6030472A (en) 1997-12-04 2000-02-29 Philip Morris Incorporated Method of manufacturing aluminide sheet by thermomechanical processing of aluminide powders
US6143241A (en) * 1999-02-09 2000-11-07 Chrysalis Technologies, Incorporated Method of manufacturing metallic products such as sheet by cold working and flash annealing
US6506338B1 (en) 2000-04-14 2003-01-14 Chrysalis Technologies Incorporated Processing of iron aluminides by pressureless sintering of elemental iron and aluminum
KR101853332B1 (ko) 2015-08-03 2018-05-02 (주)홍익기술단 하폐수 처리용 미생물 담체 제조방법
CN120236916A (zh) * 2025-04-07 2025-07-01 温州德银新材料有限公司 一种节银型特种合金触头

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1990650A (en) * 1932-06-25 1935-02-12 Smith Corp A O Heat resistant alloy
US3026197A (en) * 1959-02-20 1962-03-20 Westinghouse Electric Corp Grain-refined aluminum-iron alloys
FR1323724A (fr) * 1962-03-02 1963-04-12 Commissariat Energie Atomique Procédé de préparation d'un alliage fer-aluminium
WO1990010722A1 (fr) * 1989-03-07 1990-09-20 Martin Marietta Energy Systems, Inc. Alliages de ferrure d'aluminium ayant des proprietes ameliorees pour des applications a temperatures elevees

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1990650A (en) * 1932-06-25 1935-02-12 Smith Corp A O Heat resistant alloy
US3026197A (en) * 1959-02-20 1962-03-20 Westinghouse Electric Corp Grain-refined aluminum-iron alloys
FR1323724A (fr) * 1962-03-02 1963-04-12 Commissariat Energie Atomique Procédé de préparation d'un alliage fer-aluminium
WO1990010722A1 (fr) * 1989-03-07 1990-09-20 Martin Marietta Energy Systems, Inc. Alliages de ferrure d'aluminium ayant des proprietes ameliorees pour des applications a temperatures elevees

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587960A1 (fr) * 1992-09-16 1994-03-23 Sulzer Innotec Ag Fabrication de matériaux du type aluminiure de fer
US5346562A (en) * 1992-09-16 1994-09-13 Sulzer Innotec Ag Method of production of iron aluminide materials
EP0602904A1 (fr) * 1992-12-15 1994-06-22 Trw Inc. Soupape d'admission pour moteur à combustion interne à base de fer et d'aluminium
EP0609682A1 (fr) * 1993-02-05 1994-08-10 ABB Management AG Alliage résistant à l'oxydation et à la corrosion, à base l'aluminiure de fer dopé et application de cet alliage
RU2122044C1 (ru) * 1993-11-08 1998-11-20 Асеа Браун Бовери АГ Сплав железа с алюминием
CN1059713C (zh) * 1996-01-22 2000-12-20 东南大学 铁铝基高电阻电热合金
CN113528926A (zh) * 2021-06-11 2021-10-22 南京理工大学 一种定向FeAl基合金及其制备方法

Also Published As

Publication number Publication date
RU1839684C (ru) 1993-12-30
DE59007276D1 (de) 1994-10-27
KR100205263B1 (ko) 1999-07-01
JPH04308061A (ja) 1992-10-30
CS206791A3 (en) 1992-03-18
CZ282696B6 (cs) 1997-09-17
JP3229339B2 (ja) 2001-11-19
EP0465686B1 (fr) 1994-09-21
PL290941A1 (en) 1992-02-10
PL166845B1 (pl) 1995-06-30
US5158744A (en) 1992-10-27
KR920002814A (ko) 1992-02-28

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