EP0387237A2 - Procédé pour la fabrication d'outils et d'objets par métallurgie de poudres - Google Patents

Procédé pour la fabrication d'outils et d'objets par métallurgie de poudres Download PDF

Info

Publication number
EP0387237A2
EP0387237A2 EP90890046A EP90890046A EP0387237A2 EP 0387237 A2 EP0387237 A2 EP 0387237A2 EP 90890046 A EP90890046 A EP 90890046A EP 90890046 A EP90890046 A EP 90890046A EP 0387237 A2 EP0387237 A2 EP 0387237A2
Authority
EP
European Patent Office
Prior art keywords
powder
nitrogen
carbon
content
weight
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.)
Withdrawn
Application number
EP90890046A
Other languages
German (de)
English (en)
Other versions
EP0387237A3 (fr
Inventor
Bruno Dipl.-Ing. Hribernik
Gerhard Dipl.-Ing. Hackl
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.)
Boehler GmbH
Boehler GmbH Germany
Original Assignee
Boehler GmbH
Boehler GmbH Germany
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 Boehler GmbH, Boehler GmbH Germany filed Critical Boehler GmbH
Publication of EP0387237A2 publication Critical patent/EP0387237A2/fr
Publication of EP0387237A3 publication Critical patent/EP0387237A3/fr
Withdrawn legal-status Critical Current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
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12049—Nonmetal component
    • Y10T428/12056—Entirely inorganic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12576—Boride, carbide or nitride component

Definitions

  • the invention relates to a method for the powder-metallurgical production of workpieces or tools with high-melting carbides and / or carbonitrides distributed homogeneously in the matrix and PM parts produced by this method.
  • powder metallurgical processes can advantageously be used.
  • a molten alloy is atomized into powder, this powder is filled into capsules and a PM part is produced by sintering, HIP-en and / or hot forming and the like.
  • the invention has for its object to avoid the above disadvantages and to provide a method by which workpieces or tools with high-melting carbides, nitrides and / or carbonitrides of the elements of the IV and V group or sub-group of the periodic system with a small grain size, which are distributed homogeneously in the matrix.
  • the carbon and nitrogen content of the molten alloy, which is atomized into powder be set below a limit which is dependent on the total concentration of the elements of the IVth and Vth group of the periodic system and to set a desired carbon and / or nitrogen content
  • the atomization medium contains carbon compounds and / or nitrogen and / or a diffusion annealing of the powder at a temperature of at least the austenitizing temperature, but at most 50 ° C below the softening temperature of the alloy, and this annealing is carried out, if necessary, at certain contents or partial pressures of gaseous carbon compounds and / or nitrogen, in particular when the powder flows through it.
  • a particular advantage is given when two or more powders with different compositions and / or different carbon and nitrogen contents produced by the process according to the invention are mixed homogeneously and a PM part is produced from this mixed powder, because this results in an optimal setting of the composition or the usage properties of the part is achieved with low storage or at low costs.
  • the zone near the surface of the powder grains can absorb carbon and nitrogen to a corresponding extent and that this effect with a grain surface area of less than 0 , 9 mm2 is particularly effective. It was surprising for the person skilled in the art that a powder, also by annealing the powder in a z. enrichment of carbon and / or nitrogen in the hydrocarbon and / or nitrogen-containing atmosphere in the zone near the grain surface can be compensated for by diffusion annealing or by sintering, HIP-en and hot rolling, the carbides migrating into the grain interior melting carbides and / or form carbonitrides. The carbides and / or carbonitrides formed are homogeneously distributed and have a very small grain size. There is currently no scientific justification for this effect, but it is conceivable that one of the causes is different diffusion rates of different atoms.
  • the part formed into a tool had a carbon content of 1.32% by weight and a nitrogen concentration of 26o ppm, the grain size of the carbides and carbonitrides mainly containing vanadium and niobium at a maximum of 5 ⁇ m Was 11 vol .-%.
  • the tool had significantly improved properties compared to conventionally manufactured high-speed steel S 6-5-1-3 Nb with toughness values improved by approx. 28%.
  • the PM part with a C content of 1.70% was processed into a milling tool, heat-treated and with a hard material layer made of TiN with a thickness of 3 ⁇ m according to the PVD process Mistake.
  • a forming tool which is particularly subject to abrasion, was produced from the 2.64% by weight carbon-containing PM part and coated in multiple layers with Ti (CN) hard material.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
EP19900890046 1989-03-06 1990-02-22 Procédé pour la fabrication d'outils et d'objets par métallurgie de poudres Withdrawn EP0387237A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT491/89A AT392929B (de) 1989-03-06 1989-03-06 Verfahren zur pulvermetallurgischen herstellung von werkstuecken oder werkzeugen
AT491/89 1989-03-06

Publications (2)

Publication Number Publication Date
EP0387237A2 true EP0387237A2 (fr) 1990-09-12
EP0387237A3 EP0387237A3 (fr) 1991-01-23

Family

ID=3492022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900890046 Withdrawn EP0387237A3 (fr) 1989-03-06 1990-02-22 Procédé pour la fabrication d'outils et d'objets par métallurgie de poudres

Country Status (5)

Country Link
US (1) US5034282A (fr)
EP (1) EP0387237A3 (fr)
JP (1) JPH02282436A (fr)
KR (1) KR900014613A (fr)
AT (1) AT392929B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238482A (en) * 1991-05-22 1993-08-24 Crucible Materials Corporation Prealloyed high-vanadium, cold work tool steel particles and methods for producing the same

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256368A (en) * 1992-07-31 1993-10-26 The United States Of America As Represented By The Secretary Of The Interior Pressure-reaction synthesis of titanium composite materials
US5669059A (en) * 1994-01-19 1997-09-16 Alyn Corporation Metal matrix compositions and method of manufacturing thereof
US5980602A (en) * 1994-01-19 1999-11-09 Alyn Corporation Metal matrix composite
US5722033A (en) * 1994-01-19 1998-02-24 Alyn Corporation Fabrication methods for metal matrix composites
CN1123192A (zh) * 1994-11-15 1996-05-29 郝相臣 一种过滤构件的制备方法及其制品
GB2315441B (en) * 1996-07-20 2000-07-12 Special Melted Products Limite Production of metal billets
CN103551573B (zh) * 2013-10-22 2015-06-17 中国科学院金属研究所 可避免原始颗粒边界相析出的高温合金粉末热等静压工艺
US10794210B2 (en) 2014-06-09 2020-10-06 Raytheon Technologies Corporation Stiffness controlled abradeable seal system and methods of making same
WO2023144592A1 (fr) * 2022-01-31 2023-08-03 Arcelormittal Poudre d'alliage ferreux pour fabrication additive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2048955A (en) * 1979-04-05 1980-12-17 Atomic Energy Authority Uk Titanium Nitride Strengthened Alloys
EP0156760A2 (fr) * 1984-03-12 1985-10-02 MANNESMANN Aktiengesellschaft Procédé et installation pour la fabrication d'un outil de travail à chaud
JPS6415344A (en) * 1987-07-07 1989-01-19 Mitsubishi Metal Corp Manufacture of sintered high-speed steel member

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469514A (en) * 1965-02-26 1984-09-04 Crucible, Inc. Sintered high speed tool steel alloy composition
DE2732966A1 (de) * 1977-07-21 1979-02-01 Rutger Larson Konsult Ab Verfahren und vorrichtung zur herstellung von metallpulver
US4609526A (en) * 1984-05-14 1986-09-02 Crucible Materials Corporation Method for compacting alloy powder
US4639352A (en) * 1985-05-29 1987-01-27 Sumitomo Electric Industries, Ltd. Hard alloy containing molybdenum
US4857108A (en) * 1986-11-20 1989-08-15 Sandvik Ab Cemented carbonitride alloy with improved plastic deformation resistance
US4891338A (en) * 1987-01-13 1990-01-02 Lanxide Technology Company, Lp Production of metal carbide articles
US4942097A (en) * 1987-10-14 1990-07-17 Kennametal Inc. Cermet cutting tool
DE3806602A1 (de) * 1988-03-02 1988-07-07 Krupp Gmbh Hartmetallkoerper
CA1319497C (fr) * 1988-04-12 1993-06-29 Minoru Nakano Carbure metallique a revetement superficiel et procede de production connexe
DE68927586T2 (de) * 1989-09-11 1997-05-15 Mitsubishi Materials Corp Cermet und dessen Herstellungsverfahren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2048955A (en) * 1979-04-05 1980-12-17 Atomic Energy Authority Uk Titanium Nitride Strengthened Alloys
EP0156760A2 (fr) * 1984-03-12 1985-10-02 MANNESMANN Aktiengesellschaft Procédé et installation pour la fabrication d'un outil de travail à chaud
JPS6415344A (en) * 1987-07-07 1989-01-19 Mitsubishi Metal Corp Manufacture of sintered high-speed steel member

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 13, Nr. 190 (C-593)[3538], 8. Mai 1989; & JP-A-01 015 344 (MITSUBISHI METAL CORP.) (19-01-1989) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238482A (en) * 1991-05-22 1993-08-24 Crucible Materials Corporation Prealloyed high-vanadium, cold work tool steel particles and methods for producing the same
US5344477A (en) * 1991-05-22 1994-09-06 Crucible Materials Corporation Prealloyed high-vanadium, cold work tool steel particles

Also Published As

Publication number Publication date
JPH02282436A (ja) 1990-11-20
AT392929B (de) 1991-07-10
ATA49189A (de) 1990-12-15
US5034282A (en) 1991-07-23
EP0387237A3 (fr) 1991-01-23
KR900014613A (ko) 1990-10-24

Similar Documents

Publication Publication Date Title
AT507215B1 (de) Verschleissbeständiger werkstoff
DE2943601C2 (de) Vorlegierte Stahlpulver zur pulvermetallurgischen Herstellung von hochfesten Teilen
DE2937724C2 (de) Pulvermetallurgisch hergestelltes Stahlerzeugnis mit hohem Vanadiumcarbid- Anteil
DE2717842C2 (de) Verfahren zur Oberflächenbehandlung von gesinterten Hartmetallkörpern
DE3744573A1 (de) Oberflaechenraffinierter sinterlegierungskoerper und verfahren zu dessen herstellung
DE69818138T2 (de) Kaltarbeitswerkzeugstahlteilchen mit hoher Schlagfestigkeit aus Metallpulver und Verfahren zu seiner Herstellung
AT410448B (de) Kaltarbeitsstahllegierung zur pulvermetallurgischen herstellung von teilen
DE2429075A1 (de) Karbonitridlegierungen fuer schneidwerkzeuge und verschleissteile
DE1298293B (de) Hochverschleissfeste, bearbeitbare und haertbare Sinterstahllegierung und Verfahren zu deren Herstellung
DE3744550C2 (fr)
EP2195473A1 (fr) Outil
AT392929B (de) Verfahren zur pulvermetallurgischen herstellung von werkstuecken oder werkzeugen
EP0348380B1 (fr) Utilisation d'un alliage à base de fer pour la fabrication de pièces frittées, présentant une haute résistance à la corrosion, une haute résistance à l'usure ainsi qu'une haute tenacité et résistance à la compression et destinées, en particulier, au travail des matières synthétiques
DE1521193C3 (de) Verfahren zur Verhinderung des Herausfallens feuerfester Körner aus der Oberfläche eines gesinterten Verbundmetallgegenstandes
EP1511870B1 (fr) Corps substrat en metal dur et procede de fabrication
WO2001079575A1 (fr) Acier allie a l'azote, compacte par pulverisation, procede permettant de le produire et materiau composite produit a partir dudit acier
EP0377307A1 (fr) Poudre d'acier rapide
DE3100926A1 (de) "sintermetallhartlegierungen und verfahren zu deren herstellung"
EP3323903B1 (fr) Matériau en acier fabriqué par métallurgie des poudres, procédé de production d'un composant à partir d'un tel matériau en acier et composant fabriqué en matériau en acier
EP0149210B1 (fr) Procédé de fabrication d'ébauches résistantes ductiles à partir d'alliages, à base de fer, riches en carbone
DE10117657B4 (de) Komplex-Borid-Cermet-Körper und Verwendung dieses Körpers
EP0433264A2 (fr) Procédé de préparation d'ébauches pour pièces comprenant un taux élevé de composés métalliques
DE2602559C2 (de) Hartlegierung auf der Basis von Titankarbonitrid
AT407646B (de) Bauteil aus einem verschleissfesten, schmelzmetallurgisch hergestellten werkstoff
DE1758923B2 (de) Oberflaechennitrierte, abriebbestaendige werkstuecke, insbesondere schneidwerkzeuge

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900306

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19930901