EP0386730A1 - Alliage de nickel-chrome-fer - Google Patents

Alliage de nickel-chrome-fer Download PDF

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Publication number
EP0386730A1
EP0386730A1 EP90104349A EP90104349A EP0386730A1 EP 0386730 A1 EP0386730 A1 EP 0386730A1 EP 90104349 A EP90104349 A EP 90104349A EP 90104349 A EP90104349 A EP 90104349A EP 0386730 A1 EP0386730 A1 EP 0386730A1
Authority
EP
European Patent Office
Prior art keywords
alloy
less
nicr
chromium
nickel
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
EP90104349A
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German (de)
English (en)
Other versions
EP0386730B1 (fr
Inventor
Ulrich Dr. Brill
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.)
Krupp VDM GmbH
Original Assignee
VDM Nickel Technologie AG
Krupp VDM GmbH
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Publication date
Application filed by VDM Nickel Technologie AG, Krupp VDM GmbH filed Critical VDM Nickel Technologie AG
Priority to AT90104349T priority Critical patent/ATE89872T1/de
Publication of EP0386730A1 publication Critical patent/EP0386730A1/fr
Application granted granted Critical
Publication of EP0386730B1 publication Critical patent/EP0386730B1/fr
Anticipated expiration legal-status Critical
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W

Definitions

  • the invention relates to a thermoformable, austenitic Ni-Cr-Fe alloy with very good oxidation resistance and heat resistance.
  • Alloys of this type are used for the production of wires and strips for heating conductor resistors, for the production of support systems in furnaces and for other furnace components and increasingly also for nuclear reactors.
  • an alloy of the following composition has become known from DE-PS 30 37 209: 8 to 25% Cr 2.5 to 8% Al 0.005 to 0.04% Y up to 15% of one or more of the elements Mo, Rh, Hf, W, Ta and Nb up to 0.5% of one or more of the elements C, B, Mg, Zr and Ca. up to 1% Si, up to 2% Mn, up to 20% Co, up to 5% Ti, up to 30% Fe, balance Ni.
  • the main issue was a well-adhering aluminum oxide layer, which is expediently produced by preoxidation in an oxygen-containing atmosphere at above 1093 ° C.
  • an aluminum content of 2.5 to 8% has a strong effect on this alloy ⁇ '-excretion preferably in the temperature range of 600 to 800 ° C. This is associated with a sharp decrease in the ductility of the material, which can lead to material damage, particularly in furnaces that often pass through this temperature range during heating and cooling.
  • aluminum contents of 2.5 to 8% and chromium contents of 8 to 25% are not sufficient to only form aluminum oxide in NiCrAl alloys. Rather, the formation of aluminum oxide, chromium oxide, mixed oxides and internal oxidation occurs, a process that leads to a poorer protective effect than the pure chromium oxide, especially in the case of thermal-cyclical stress.
  • the alloy can also contain Ti, Al and Y.
  • zirconium on the resistance to oxidation is neutralized if zirconium is present as a stable carbide to improve the hot formability.
  • the positive influence of zirconium on the hot processing properties can be reversed if coarsely dispersed zirconium carbides are formed due to the non-coordinated addition of zirconium and carbon.
  • an alloy from DIN 17 742 (material no. 2.4867) is included Max. 0.15% C Max. 0.3% Al 14 to 19% Cr Max. 0.5% Cu 19 to 25% Fe Max. 2.0% Mn 0.5 to 2.0% Si and at least 59% Ni (including 1% Co) known in the form of wires and tapes for the production of heating conductors and electrical resistors is suitable and is generally manufactured and offered with the following composition: up to 0.08% C 0.1 to 0.2% Al 14.0 to 16.0% Cr up to 0.5% Cu 19.0 to 23.0% Fe 0.1 to 0.8% Mn 1.1 to 1.6% Si 0.001 to 0.04% approx up to 0.05% N up to 0.01% S up to 0.015% P 0.01 to 0.04% lanthanide as cerium mixed metal Rest of nickel.
  • This heating conductor alloy is known under the short name NiCr 60 15. Under thermal cycling (according to FIG. 1b, see below) it has service life values that lie between those of the pure Ni-Cr alloy NiCr 80 20 on the one hand and those of the iron-based material NiCr 30 20 on the other hand (see FIG. 2). In addition, despite the higher melting point, the NiCr 60 15 alloy has a lower maximum operating temperature than the pure Ni-Cr alloy and does not have sufficient heat resistance for certain applications.
  • the maximum operating temperature which is usually limited to approx. 1200 ° C., can be increased by approx. 50 ° C. if the alloy elements are used there according to the prior art Form of mixed metal added lanthanides replaced by yttrium.
  • FIG. 1a shows, in a highly simplified manner, a device for checking the service life of a horizontally arranged, helically wound heating conductor (1) which is clamped at the end in a holder (2) and connected to a voltage source (3).
  • the heating conductor consisted of a 50 mm long coil with 12 turns and an inner diameter of 3 mm. The wire diameter was 0.4 mm.
  • the heating conductor was switched on and off in alternation of two minutes, whereby the maximum temperature reached during the heating phase was measured without contact using a radiation pyrometer and regulated to a constant value by changing the applied voltage.
  • Fig. 1b shows - also greatly simplified - a device for testing the life of a vertically hanging heating conductor wire (4) of one meter in length, which is clamped at its upper end in a holder (5), loaded with a variable weight (6) and with a voltage source (7) is connected.
  • FIG. 3 the service life of the material according to the invention determined with a device according to FIG. 1a at a maximum temperature set at 1150 ° C. is below the same conditions measured lifetime of the unmodified material "NiCr 60 15 old" compared.
  • the service life was increased from 2900 cycles to 4100 cycles, which means an improvement of over 40%.
  • modified alloy at 1200 or 1250 ° C still has 65 or 34% of the life of the base alloy at 1150 ° C is important for practice, which represents a considerable safety reserve, especially with regard to short-term exceeding of the operating temperatures is very desirable in most fields of application.
  • a high level of heat resistance is generally required for heating conductor windings, and thus for free-hanging The sagging of the windings can be avoided.
  • the heat resistance is based above all on solid-solution strengthening of the basic nickel structure by Cr and Fe and hardening by carbides.
  • Ti and Zr and N were alloyed, so that the modified alloy contains nitrides and carbonitrides in addition to the carbides.
  • the modified material showed a significantly longer service life.
  • Two complete heating elements such as those used for tumble dryers, were charged with 227 volts in 30-second cycles, with which a maximum temperature of 1150 ° C is achieved with a new heating element.
  • the comparative alloy "NiCr 60 15 old" only withstood around 130,000 cycles
  • the alloy “NiCr 60 15 new” according to the invention has so far endured more than 380,000 cycles in the test which has not yet ended. This almost triples the service life, which speaks for the considerable economic importance of the alloy according to the invention.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Resistance Heating (AREA)
  • Contacts (AREA)
  • Heat Treatment Of Steel (AREA)
  • Dental Preparations (AREA)
  • Soft Magnetic Materials (AREA)
  • Materials For Medical Uses (AREA)
  • Conductive Materials (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Laminated Bodies (AREA)
  • Powder Metallurgy (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP90104349A 1989-03-09 1990-03-07 Alliage de nickel-chrome-fer Expired - Lifetime EP0386730B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90104349T ATE89872T1 (de) 1989-03-09 1990-03-07 Nickel-chrom-eisen-legierung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907564A DE3907564A1 (de) 1989-03-09 1989-03-09 Nickel-chrom-eisen-legierung
DE3907564 1989-03-09

Publications (2)

Publication Number Publication Date
EP0386730A1 true EP0386730A1 (fr) 1990-09-12
EP0386730B1 EP0386730B1 (fr) 1993-05-26

Family

ID=6375882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104349A Expired - Lifetime EP0386730B1 (fr) 1989-03-09 1990-03-07 Alliage de nickel-chrome-fer

Country Status (14)

Country Link
US (1) US4997623A (fr)
EP (1) EP0386730B1 (fr)
JP (1) JPH0689427B2 (fr)
KR (1) KR900014619A (fr)
AT (1) ATE89872T1 (fr)
AU (1) AU617242B2 (fr)
BR (1) BR9001105A (fr)
CA (1) CA2011152A1 (fr)
DD (1) DD292479A5 (fr)
DE (2) DE3907564A1 (fr)
ES (1) ES2042102T3 (fr)
IE (1) IE62547B1 (fr)
MX (1) MX172020B (fr)
ZA (1) ZA901579B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492517A1 (fr) * 1990-12-21 1992-07-01 Nippon Steel Corporation Alliage et tube composite en acier présentant une excellente résistance à la corrosion pour utilisation dans une atmosphère combustible contenant vanadium, sodium, soufre ou chlore
EP0690140A1 (fr) * 1994-06-28 1996-01-03 Krupp VDM GmbH Alliage réfractaire et forgeable
US5851318A (en) * 1995-06-09 1998-12-22 Krupp Vdm Gmbh High temperature forgeable alloy
WO2005031018A1 (fr) * 2003-10-02 2005-04-07 Sandvik Intellectual Property Ab Alliage austenitique fe-cr-ni pour usage haute temperature
DE102007005605A1 (de) 2007-01-31 2008-08-07 Thyssenkrupp Vdm Gmbh Eisen-Nickel-Chrom-Silizium-Legierung
WO2009000230A1 (fr) * 2007-06-26 2008-12-31 Thyssenkrupp Vdm Gmbh Alliage fer-nickel-chrome-silicium
US8926769B2 (en) 2005-07-01 2015-01-06 Sandvik Intellectual Property Ab Ni—Cr—Fe alloy for high-temperature use

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330590A (en) * 1993-05-26 1994-07-19 The United States Of America, As Represented By The Administrator Of The National Aeronautics & Space Administration High temperature creep and oxidation resistant chromium silicide matrix alloy containing molybdenum
DK172987B1 (da) * 1994-12-13 1999-11-01 Man B & W Diesel As Cylinderelement, nikkelbaseret pålægningslegering og anvendelse af legeringen
RU2425901C1 (ru) * 2009-12-24 2011-08-10 Федеральное Государственное Унитарное Предприятие "Центральный Научно-Исследовательский Институт Конструкционных Материалов "Прометей" (Фгуп "Цнии Км Прометей") Жаропрочный сплав на никелевой основе
CN103153102B (zh) 2010-09-29 2015-04-08 霍丁斯瑞典有限公司 适于保护头部的安全气囊
DK177487B1 (en) * 2012-07-06 2013-07-15 Man Diesel & Turbo Deutschland An exhaust valve spindle for an exhaust valve in an internal combustion engine
CN111411265B (zh) * 2020-03-21 2021-11-26 交大材料科技(江苏)研究院有限公司 一种镍基合金超薄板材
CN112080749B (zh) * 2020-09-09 2022-01-11 北京首钢吉泰安新材料有限公司 一种镍铬合金丝的表面处理方法和装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581420A (en) * 1949-09-23 1952-01-08 Driver Harris Co Alloys
US3865581A (en) * 1972-01-27 1975-02-11 Nippon Steel Corp Heat resistant alloy having excellent hot workabilities
EP0178785A2 (fr) * 1984-09-20 1986-04-23 Nippon Yakin Kogyo Kabushiki Kaisha Alliage à base de nickel, à résistance élevée contre la corrosion intercristalline et la fissuration par corrosion sous tension et à haute usinabilité à chaud
EP0183536A2 (fr) * 1984-11-30 1986-06-04 Nippon Steel Corporation Acier magnétique à haute résistance à la corrosion et à haute résistance mécanique pour masse-tige de forage et masse-type fabriquée avec cet acier
EP0235075A2 (fr) * 1986-01-20 1987-09-02 Mitsubishi Jukogyo Kabushiki Kaisha Alliage à base de nickel et procédé pour sa fabrication

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111013A (en) * 1974-07-19 1976-01-28 Nippon Steel Corp Tainetsunitsukerugokinno seizoho
US4400211A (en) * 1981-06-10 1983-08-23 Sumitomo Metal Industries, Ltd. Alloy for making high strength deep well casing and tubing having improved resistance to stress-corrosion cracking
US4400210A (en) * 1981-06-10 1983-08-23 Sumitomo Metal Industries, Ltd. Alloy for making high strength deep well casing and tubing having improved resistance to stress-corrosion cracking
US4421571A (en) * 1981-07-03 1983-12-20 Sumitomo Metal Industries, Ltd. Process for making high strength deep well casing and tubing having improved resistance to stress-corrosion cracking
JPS6179742A (ja) * 1984-09-26 1986-04-23 Mitsubishi Heavy Ind Ltd 耐熱合金

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581420A (en) * 1949-09-23 1952-01-08 Driver Harris Co Alloys
US3865581A (en) * 1972-01-27 1975-02-11 Nippon Steel Corp Heat resistant alloy having excellent hot workabilities
EP0178785A2 (fr) * 1984-09-20 1986-04-23 Nippon Yakin Kogyo Kabushiki Kaisha Alliage à base de nickel, à résistance élevée contre la corrosion intercristalline et la fissuration par corrosion sous tension et à haute usinabilité à chaud
EP0183536A2 (fr) * 1984-11-30 1986-06-04 Nippon Steel Corporation Acier magnétique à haute résistance à la corrosion et à haute résistance mécanique pour masse-tige de forage et masse-type fabriquée avec cet acier
EP0235075A2 (fr) * 1986-01-20 1987-09-02 Mitsubishi Jukogyo Kabushiki Kaisha Alliage à base de nickel et procédé pour sa fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIN 17742, Februar 1983, Seiten 1-3, Deutsches Institut für Normung e.V., Berlin, DE *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492517A1 (fr) * 1990-12-21 1992-07-01 Nippon Steel Corporation Alliage et tube composite en acier présentant une excellente résistance à la corrosion pour utilisation dans une atmosphère combustible contenant vanadium, sodium, soufre ou chlore
EP0690140A1 (fr) * 1994-06-28 1996-01-03 Krupp VDM GmbH Alliage réfractaire et forgeable
US5851318A (en) * 1995-06-09 1998-12-22 Krupp Vdm Gmbh High temperature forgeable alloy
WO2005031018A1 (fr) * 2003-10-02 2005-04-07 Sandvik Intellectual Property Ab Alliage austenitique fe-cr-ni pour usage haute temperature
US10683569B2 (en) 2003-10-02 2020-06-16 Sandvik Intellectual Property Ab Austenitic Fe—Cr—Ni alloy for high temperature
EP2426226A2 (fr) 2003-10-02 2012-03-07 Sandvik Intellectual Property AB Alliage à base de fer et nickel pour utilisation à hautes températures
EP2426226A3 (fr) * 2003-10-02 2014-02-26 Sandvik Intellectual Property AB Alliage à base de fer et nickel pour utilisation à hautes températures
US9260770B2 (en) 2003-10-02 2016-02-16 Sandvik Intellectual Property Ab Austenitic FE-CR-NI alloy for high temperature use
US8926769B2 (en) 2005-07-01 2015-01-06 Sandvik Intellectual Property Ab Ni—Cr—Fe alloy for high-temperature use
DE102007005605A1 (de) 2007-01-31 2008-08-07 Thyssenkrupp Vdm Gmbh Eisen-Nickel-Chrom-Silizium-Legierung
DE102007029400A1 (de) 2007-06-26 2009-01-02 Thyssenkrupp Vdm Gmbh Eisen-Nickel-Chrom-Silizium-Legierung
DE102007029400B4 (de) * 2007-06-26 2014-05-15 Outokumpu Vdm Gmbh Eisen-Nickel-Chrom-Silizium-Legierung
WO2009000230A1 (fr) * 2007-06-26 2008-12-31 Thyssenkrupp Vdm Gmbh Alliage fer-nickel-chrome-silicium

Also Published As

Publication number Publication date
EP0386730B1 (fr) 1993-05-26
DE59001527D1 (de) 1993-07-01
KR900014619A (ko) 1990-10-24
DD292479A5 (de) 1991-08-01
IE62547B1 (en) 1995-02-08
IE900835L (en) 1990-09-09
BR9001105A (pt) 1991-03-05
CA2011152A1 (fr) 1990-09-09
DE3907564A1 (de) 1990-09-13
US4997623A (en) 1991-03-05
ZA901579B (en) 1991-01-30
JPH0689427B2 (ja) 1994-11-09
ES2042102T3 (es) 1993-12-01
MX172020B (es) 1993-11-29
JPH0320433A (ja) 1991-01-29
ATE89872T1 (de) 1993-06-15
AU5117390A (en) 1990-09-20
AU617242B2 (en) 1991-11-21

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