EP0044351A1 - Alliage dur se composant d'une ou plusieurs matières dures et d'un alliage de métal liant, et procédé pour sa production - Google Patents

Alliage dur se composant d'une ou plusieurs matières dures et d'un alliage de métal liant, et procédé pour sa production Download PDF

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Publication number
EP0044351A1
EP0044351A1 EP80104274A EP80104274A EP0044351A1 EP 0044351 A1 EP0044351 A1 EP 0044351A1 EP 80104274 A EP80104274 A EP 80104274A EP 80104274 A EP80104274 A EP 80104274A EP 0044351 A1 EP0044351 A1 EP 0044351A1
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EP
European Patent Office
Prior art keywords
powder
hard
alloy
metal
metals
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
EP80104274A
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German (de)
English (en)
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EP0044351B1 (fr
Inventor
Helmut Dr. Holleck
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.)
Karlsruher Institut fuer Technologie KIT
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Kernforschungszentrum Karlsruhe 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.)
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Publication date
Application filed by Kernforschungszentrum Karlsruhe GmbH filed Critical Kernforschungszentrum Karlsruhe GmbH
Priority to DE8080104274T priority Critical patent/DE3070055D1/de
Priority to AT80104274T priority patent/ATE11574T1/de
Priority to EP80104274A priority patent/EP0044351B1/fr
Priority to US06/286,376 priority patent/US4432794A/en
Priority to JP56112046A priority patent/JPS5751239A/ja
Publication of EP0044351A1 publication Critical patent/EP0044351A1/fr
Application granted granted Critical
Publication of EP0044351B1 publication Critical patent/EP0044351B1/fr
Expired 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
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder

Definitions

  • the invention relates to a hard alloy consisting of one or more hard materials and a binary binder metal alloy which contains a metal from group 8b of the periodic table of the elements.
  • Hard metals or hard alloys have already been described in R. Kieffer, F. Benesovsky “Hartmetalle” (1965), pages 216 to 223.
  • Hard metals with a base carbide made of chromium carbide (Cr 3 c 2 ) with 12% or 15% nickel binder have good wear resistance and high corrosion resistance.
  • Such chromium carbide hard metals are relatively brittle, which has to be taken into account in the case of impact loads. With increasing nickel content, the corrosion resistance of Cr 3 C 2 hard metals also decreases. The low toughness and poor resistance to temperature changes preclude the use of Cr 3 C 2 hard metals as high-temperature materials.
  • the invention is therefore based on the object of providing a material with high strength, high hardness and high wear resistance, which is largely resistant to corrosive (sometimes also oxidizing) media.
  • the process of its manufacture should be simple.
  • Advantageous configurations of the hard alloy are characterized by hard material-to-binder metal alloy ratios in the range between 90% by volume of hard material / 10% by volume of binder metal alloy and 5% by volume of hard material / 95% by volume of binder metal alloy .
  • a further development of the hard alloy is characterized in that the proportion of the 4b, 5b, 6b transition metal in the binder metal alloy is in the range between 2 mol% and 60 mol%.
  • the carbide in the hard alloy has a composition which corresponds to a transition metal to carbon ratio in the range from 1: 1 to 2: 1.
  • the proportion of platinum metal in the binder metal alloy is replaced by up to 90 atomic% by iron, cobalt or nickel.
  • chrome powder is mixed with a powder of one or more of the metals from the group Ru, Rh, Ir and Pt and with carbon powder in a ratio that corresponds to the formulas from these resulting mixing formulas, mixed and sintered the mixture after pressing to form the intermediate carbide or at temperatures above the decomposition temperatures of the respective multi-component carbides.
  • molybdenum powder is mixed with a powder of one or more metals from the group Re, Ru, Rh, Os, Ir, Pt and with carbon powder in a ratio that corresponds to the formulas corresponds to these resulting mixing formulas, mixed and the mixture melted after pressing to form the intermediate carbide or sintered at temperatures above the decomposition temperatures of the respective multicomponent carbides.
  • tungsten powder is mixed with a powder of one or more of the metals from the group Ru, Rh, Os and Pt and with carbon powder in a ratio which corresponds to the formulas from these resulting mixing formulas, mixed and the mixture melted after pressing to form the intermediate carbide or sintered at temperatures above the decomposition temperatures of the respective multicomponent carbides.
  • alloys could be produced which are characterized by very finely divided carbides in a solid, tough and corrosion-resistant metal matrix.
  • Chromium, molybdenum and tungsten carbides are particularly suitable as carbides. as metal phase alloys based on (Pt-Cr), (Pt-Mo), (Pt-W7, (Pd-Cr), (Pd-Mo), (Pd-W), (Ru-Cr), (Ru -Mo), (Ru-W) or other platinum metals with Cr, Mo and W.
  • the invention is characterized in that ternary high-temperature carbides are obtained which, upon cooling or during heat treatment at medium temperatures (approx. 1273 K to 1575 K), form a carbide phase and a solid platinum metal alloy fall.
  • the heat treatment can be controlled in such a way that extremely fine-grained microstructures with uniform carbide distribution are created. This brings with it a high level of hardness and strength and is the basis for favorable wear behavior.
  • a hard alloy with 63 vol .-% metal phase and 37 vol .-% carbide (Mo 2 C) still has a hardness of lo6o HV and, according to the crack length method, a very high toughness.
  • the hard alloys according to the invention are fine-grained composite materials with a total composition of the square a-b-c-d in FIG. 1 consisting of a carbide phase and metal alloys with the components shown in FIG. 1.
  • the production method is also an essential component of the invention: a high-temperature sintering or melting process produces a ternary carbide, which is decomposed into a binary carbide phase and a binary metal phase at lower temperatures.
  • a material based on molybdenum carbide (Mo, Pt) alloy was obtained by melting or sintering above 1575 K of a mixture of Mo / Pt / C 5o / 35/15 at.%. Such a sample lies at the end of the ternary carbide (Mo, Pt) C ⁇ 0.1 in the isothermal diagram of the system Mo-Pt-C at 1773 K. Subsequent annealing at 1373 K led to decay according to the phase relationships in the diagram at 1373 K in MO 2 C and ⁇ - (Mo, Pt). The contents of the metallic or carbide phase can be varied as required. WC- (W, Ir) or WC (W, Pt) alloys with very high metal contents have also been produced.
  • a W / Pt / C alloy with 5o at.% W, 4o at.% Pt and lo At. % C is melted or sintered at 2273 K, cooled rapidly and then homogenized at temperatures around 1373 K. The finest WC and W 2 C particles are then dissolved in a (W, Pt) matrix.
  • a W / Rh / C alloy with 4o at.% W, 4o at.% Rh and 2o at.% C is melted or sintered at 2273 K, quickly cooled and then homogenized at 1773 K.
  • the microstructure shows WC and W 2 C particles of approximately 1 to 2 ⁇ m, homogeneously distributed in a (W, Rh) alloy.
  • Wear and corrosion-resistant hard metals of the specified type can be used in tools and parts subject to wear in particularly corrosive (and / oxidation-prone) environments.
  • neutron radiation e.g. Pt

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Adornments (AREA)
EP80104274A 1980-07-19 1980-07-19 Alliage dur se composant d'une ou plusieurs matières dures et d'un alliage de métal liant, et procédé pour sa production Expired EP0044351B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE8080104274T DE3070055D1 (en) 1980-07-19 1980-07-19 Hard alloy consisting of one or several hard substances and a binding metal alloy, and process for producing this alloy
AT80104274T ATE11574T1 (de) 1980-07-19 1980-07-19 Hartlegierung, bestehend aus einem oder mehreren hartstoffen und einer bindemetall-legierung, und verfahren zum herstellen dieser legierung.
EP80104274A EP0044351B1 (fr) 1980-07-19 1980-07-19 Alliage dur se composant d'une ou plusieurs matières dures et d'un alliage de métal liant, et procédé pour sa production
US06/286,376 US4432794A (en) 1980-07-19 1981-07-17 Hard alloy comprising one or more hard phases and a binary or multicomponent binder metal alloy
JP56112046A JPS5751239A (en) 1980-07-19 1981-07-17 Hard alloy and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80104274A EP0044351B1 (fr) 1980-07-19 1980-07-19 Alliage dur se composant d'une ou plusieurs matières dures et d'un alliage de métal liant, et procédé pour sa production

Publications (2)

Publication Number Publication Date
EP0044351A1 true EP0044351A1 (fr) 1982-01-27
EP0044351B1 EP0044351B1 (fr) 1985-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104274A Expired EP0044351B1 (fr) 1980-07-19 1980-07-19 Alliage dur se composant d'une ou plusieurs matières dures et d'un alliage de métal liant, et procédé pour sa production

Country Status (5)

Country Link
US (1) US4432794A (fr)
EP (1) EP0044351B1 (fr)
JP (1) JPS5751239A (fr)
AT (1) ATE11574T1 (fr)
DE (1) DE3070055D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121769A1 (fr) * 1983-03-15 1984-10-17 Stellram S.A. Alliage fritté à base de carbures et articles en cet alliage

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746363A (en) * 1982-12-30 1988-05-24 Corning Glass Works Reaction sintered cermet
EP0165707B1 (fr) * 1984-05-18 1991-10-23 Sumitomo Electric Industries Limited Procédé pour le frittage de corps en céramique et corps en céramique renforcés par un métal dispersé obtenus par ce procédé
US4731115A (en) * 1985-02-22 1988-03-15 Dynamet Technology Inc. Titanium carbide/titanium alloy composite and process for powder metal cladding
SE456428B (sv) * 1986-05-12 1988-10-03 Santrade Ltd Hardmetallkropp for bergborrning med bindefasgradient och sett att framstella densamma
US4810314A (en) * 1987-12-28 1989-03-07 The Standard Oil Company Enhanced corrosion resistant amorphous metal alloy coatings
US5134039A (en) * 1988-04-11 1992-07-28 Leach & Garner Company Metal articles having a plurality of ultrafine particles dispersed therein
US4950328A (en) * 1988-07-12 1990-08-21 Mitsubishi Metal Corporation End mill formed of tungsten carbide-base sintered hard alloy
US5236789A (en) * 1991-07-01 1993-08-17 Olin Corporation Palladium alloys having utility in electrical applications
US5139891A (en) * 1991-07-01 1992-08-18 Olin Corporation Palladium alloys having utility in electrical applications
EP0627017A1 (fr) * 1992-02-20 1994-12-07 The Dow Chemical Company Alliages de carbure de tungstene et de rhenium
JPH07268709A (ja) * 1994-03-23 1995-10-17 Kinzoku Kogyo Kenkyu Hatten Chushin 布グリッパー
US6197253B1 (en) 1998-12-21 2001-03-06 Allen Broomfield Lead-free and cadmium-free white metal casting alloy
US6749803B2 (en) 2002-05-03 2004-06-15 Honeywell International, Inc. Oxidation resistant rhenium alloys
US6821313B2 (en) * 2002-05-31 2004-11-23 Honeywell International, Inc. Reduced temperature and pressure powder metallurgy process for consolidating rhenium alloys
US6946096B2 (en) * 2002-05-03 2005-09-20 Honeywell International, Inc. Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors
US6987339B2 (en) * 2002-05-03 2006-01-17 Honeywell International, Inc. Flywheel secondary bearing with rhenium or rhenium alloy coating
US7645315B2 (en) * 2003-01-13 2010-01-12 Worldwide Strategy Holdings Limited High-performance hardmetal materials
US20070034048A1 (en) * 2003-01-13 2007-02-15 Liu Shaiw-Rong S Hardmetal materials for high-temperature applications
US6911063B2 (en) * 2003-01-13 2005-06-28 Genius Metal, Inc. Compositions and fabrication methods for hardmetals
US7857188B2 (en) * 2005-03-15 2010-12-28 Worldwide Strategy Holding Limited High-performance friction stir welding tools
AU2006280936A1 (en) * 2005-08-19 2007-02-22 Worldwide Strategy Holdings Limited Hardmetal materials for high-temperature applications
US8512882B2 (en) * 2007-02-19 2013-08-20 TDY Industries, LLC Carbide cutting insert
US8440314B2 (en) * 2009-08-25 2013-05-14 TDY Industries, LLC Coated cutting tools having a platinum group metal concentration gradient and related processes
US9340852B2 (en) * 2011-09-26 2016-05-17 National Tsing Hua University Elevated refractory alloy with ambient-temperature and low-temperature ductility and method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008461B2 (de) * 1969-02-26 1977-07-07 Aerojet-General Corp, El Monte, Calif. (V.St.A.) Eutektisch erstarrte karbidhartlegierung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828877A (en) * 1957-10-04 1960-02-24 Engelhard Ind Inc Improvements in or relating to spinerettes
US3395013A (en) * 1965-03-29 1968-07-30 Gen Telepohone And Electronics High-temperature ductile alloys
US3379520A (en) * 1967-03-23 1968-04-23 Gen Electric Tantalum-base alloys
US3554737A (en) * 1968-05-21 1971-01-12 Battelle Development Corp Cast refractory alloy
GB1309634A (en) * 1969-03-10 1973-03-14 Production Tool Alloy Co Ltd Cutting tools
US3628921A (en) * 1969-08-18 1971-12-21 Parker Pen Co Corrosion resistant binder for tungsten carbide materials and titanium carbide materials
CA986337A (en) * 1971-05-28 1976-03-30 International Nickel Company Of Canada Ruthenium or osmium on hard metal
US4097275A (en) * 1973-07-05 1978-06-27 Erich Horvath Cemented carbide metal alloy containing auxiliary metal, and process for its manufacture
US4067742A (en) * 1976-04-01 1978-01-10 Nasa Thermal shock and erosion resistant tantalum carbide ceramic material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008461B2 (de) * 1969-02-26 1977-07-07 Aerojet-General Corp, El Monte, Calif. (V.St.A.) Eutektisch erstarrte karbidhartlegierung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121769A1 (fr) * 1983-03-15 1984-10-17 Stellram S.A. Alliage fritté à base de carbures et articles en cet alliage
US4574011A (en) * 1983-03-15 1986-03-04 Stellram S.A. Sintered alloy based on carbides

Also Published As

Publication number Publication date
DE3070055D1 (en) 1985-03-14
ATE11574T1 (de) 1985-02-15
EP0044351B1 (fr) 1985-01-30
JPS5751239A (en) 1982-03-26
US4432794A (en) 1984-02-21

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