EP1990438A1 - Outil doté d'un revêtement - Google Patents

Outil doté d'un revêtement Download PDF

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Publication number
EP1990438A1
EP1990438A1 EP20080450060 EP08450060A EP1990438A1 EP 1990438 A1 EP1990438 A1 EP 1990438A1 EP 20080450060 EP20080450060 EP 20080450060 EP 08450060 A EP08450060 A EP 08450060A EP 1990438 A1 EP1990438 A1 EP 1990438A1
Authority
EP
European Patent Office
Prior art keywords
tool
coating
article according
max
body part
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
EP20080450060
Other languages
German (de)
English (en)
Other versions
EP1990438B1 (fr
Inventor
Ziya Devrim Caliskanoglu
Christian Mitterer
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.)
Voestalpine Boehler Edelstahl GmbH and Co KG
Original Assignee
Boehler Edelstahl GmbH and Co KG
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 Edelstahl GmbH and Co KG filed Critical Boehler Edelstahl GmbH and Co KG
Priority to SI200830049T priority Critical patent/SI1990438T1/sl
Publication of EP1990438A1 publication Critical patent/EP1990438A1/fr
Application granted granted Critical
Publication of EP1990438B1 publication Critical patent/EP1990438B1/fr
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Anticipated expiration legal-status Critical

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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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • 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
    • 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.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12104—Particles discontinuous
    • Y10T428/12111—Separated by nonmetal matrix or binder [e.g., welding electrode, etc.]
    • Y10T428/12125—Nonparticulate component has Fe-base
    • 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.]
    • Y10T428/12639—Adjacent, identical composition, components
    • Y10T428/12646—Group VIII or IB metal-base
    • Y10T428/12653—Fe, containing 0.01-1.7% carbon [i.e., steel]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to a tool or article which carries a coating applied by a PVD or CVD method.
  • the invention preferably relates to a tool for machining metals, in particular austenitic steels, nickel-base alloys and titanium, and titanium alloys.
  • Precipitation-hardenable iron-cobalt-molybdenum and / or tungsten alloys are known as tool materials and state of the art.
  • a production of larger tools from these so-called quick-cut alloys is associated with a number of problems because on the one hand given a high tendency to segregation in the solidification of the melt and on the other hand, a hot working of the material are possible only within narrow limits at high temperature.
  • the tool as a composite tool, with only small cutting parts made of an iron-cobalt-tungsten alloy, which are connected to a support member, usually made of an alloy steel, by welding.
  • An improvement in the performance characteristics of the cutting parts should be achieved by a powder metallurgical (PM) production.
  • the tool has long been known and customary to provide at least the working areas of the cutting tools with a surface hard layer.
  • the tool After the tool has been formed in its shape and given a thermal coating, it is applied by applying at least one layer of hard material, usually of carbide and / or nitride and of carbonitride and / or oxide, in particular of the elements Ti and / or Al and / or Cr, after PVD or CVD process at a temperature between 500 ° C and 680 ° C, at most below the tempering temperature of the tool steel alloy, in particular the high speed steel alloy.
  • hard material usually of carbide and / or nitride and of carbonitride and / or oxide, in particular of the elements Ti and / or Al and / or Cr
  • a carbide coating is also known for hard metals and is used extensively for such tools.
  • the technological advancement of coated high-speed steel tools improved their quality and performance characteristics such that similarly coated tools made of carbon-free, precipitation hardened (Fe-Co-Mo) cutting parts have approximately the same property profile or equal cutting strength during chip removal.
  • the invention which is based on the object to provide a tool or an object, which or which, in particular in a machining of metals, such as titanium, has a significantly improved performance.
  • This object is achieved in a tool or article which consists of a substantially carbon-free, precipitation-hardened iron-cobalt-molybdenum-tungsten-nitrogen alloy and carries a coating which is applied by the PVD or CVD method and a single-phase crystalline structure.
  • a PM production improves the uniformity of a fine microstructure and has a favorable effect on the deformability of the material.
  • the applied to the tool under improved adhesion according to the invention single-phase crystalline structured coating has not only a high hardness and high toughness and a low surface roughness, which has in a chip of particularly tough metals, as has been shown, particular advantages in terms of reduced Tool heating and an improved chip removal brings.
  • the advantages of the article or the like according to the invention are, as it turned out, based on a synergy.
  • a powder metallurgical production of the main body which has a significantly higher thermal conductivity, a microstructure with a fine distribution of the phases of the material is achieved, in comparison with high-alloyed high-speed steels no noticeable material softening at high temperatures, eg at 600 ° C, occurs.
  • the alloying element nitrogen with a minimum concentration of 0.005 wt .-%, in particular of 0.01 wt .-% in the substrate, because this significantly increases the adhesion of the growing coating.
  • a monophasic crystalline layer with face-centered cubic structure proves to be superior, because on the one hand it has improved mechanical properties and, on the other hand, has a low surface roughness, which is advantageous in particular for cutting tools.
  • the body part consists of an alloy containing in wt .-%: cobalt Co 15.0 to 30.0 molybdenum Not a word until 20.0 tungsten W to 25.0 Molybdenum + 0.5 tungsten Mo + W / 2 10.0 to 22.0 nitrogen N 0005 to 0.12 Iron (Fe) and production-related impurities as the remainder.
  • the abovementioned alloy within wide limits of the chemical composition is also particularly suitable for atomization of the liquid metal and the subsequent solidification to largely homogeneous, small powder grains. This also results in improved deformation conditions of the hot isostatic pressed (HIP) block.
  • HIP hot isostatic pressed
  • thermoformed article but also the property profile of the main body of a tool and ultimately of the tool itself, can be further improved if the body part is made using a powder metallurgy (PM) process for block making and an alloy containing in wt%.
  • PM powder metallurgy
  • An alloy optimization of the chemical composition according to the above values relates to the concentrations of the basic elements, the ratio of cobalt to molybdenum, a narrow limitation of the micro-alloying elements and a limitation of the impurities in the material.
  • the nitrogen content is ambivalent on the one hand with regard to the microstructure, on the other hand advantageous in terms of adhesion and a type of coating.
  • microalloying elements in the mentioned content ranges which are advantageously effective for the production and for the property profile of the material, the elements silicon and manganese, which in particular reduce harmful grain boundary deposits, are outstandingly mentioned.
  • the impurity elements aluminum and carbon are ambivalently effective, but should not exceed the specified maximum concentrations.
  • Phosphorus, sulfur and oxygen are to be regarded as pests which should have as low as possible levels in the alloy.
  • a further improvement in the material parameters can be achieved if one or more alloying constituent (s) or accompanying element (s) has a concentration in% by weight: Co 24.0 to 27.0 Not a word 13.5 to 17.5 N 0008 to 12:01 Si 0.2 to 0.6 Mn 0.1 to 0.3 Cr 12:03 to 12:07 V 0025 to 12:06 W 12:03 to 12:08 Ni 12:09 to 0.2 Ti 0003 to 0009 Nb / Ta 0003 to 0009 al 0001 to 0009 C 12:01 to 12:07 P MAX 0008 S MAX 0015
  • the hardness of the body part exceeds a value of 66 HRC, in particular of 67 HRC, the highest possible stability of the coating can be achieved. Even in the case of a small-area pressure load, ie a locally high, specific surface load, high hardness of the body part or of the main body prevents the brittle hard material layer from breaking in. An improved support of the coating on the substrate with high hardness causes an intact hard layer, prevents a partial peeling thereof, thereby extending the possible service life of the tool.
  • the material toughness can be increased in spite of high material hardness.
  • the aforementioned tool according to the invention or a like object has a coating with a largely single-phase crystalline structure.
  • a predominantly single-phase, cubic face-centered atomic structure of the applied layer can only be achieved at a coating temperature of substantially above 500 ° C.
  • thermodynamic and kinetic energy in the micro-region during layer formation or layer build-up, exerts a decisive influence on the formation of the structure of the growing layer.
  • a high energy promotes the diffusion of the atoms in a columnar layer forming and thereby causes a compact, contiguous, face-centered cubic, electrically conductive, substantially single-phase layer structure with high layer hardness.
  • a hexagonal atomic structure of a layer is hard, but also brittle and electrically non-conductive.
  • a high energy or temperature load in the micron range is achieved on the substrate with an abovementioned chemical composition without a decrease in material hardness, hard, smooth and tough surface coatings can be produced which also have a low tendency to breakdown due to the high substrate hardness due to local stresses have and thus cause a high quality of the tool or object.
  • a temperature of about 520 ° C. to 600 ° C. in PVD or CVD processes is usually used for a single-phase crystalline formation thereof.
  • high coating temperatures can have a retroactive effect on the material hardness of a main body or body part made of conventional tool steels, eg high-speed steels.
  • HIP hot isostatic pressing
  • the thus prepared HIP block with a diameter of approx. 400 mm ⁇ was hot-rolled at high temperature onto a round bar with a diameter of 31 mm ⁇ .
  • an Fe-Co-Mo-N alloy in the present case the material S 903 PM, in particular in the range between RT and 600 ° C has a significantly higher thermal conductivity than a high-speed steel of type S 6-5-2 ( M2).
  • the hardness and Young's modulus of a layer deposited on a substrate by the PVD or CVD method increases with higher coating temperatures. At the same time, the roughness of the surface of the applied layer, in particular of a single-phase crystalline structure, is reduced.
  • An increased nitrogen concentration on the surface of the tool body part can also be achieved by embroidering it to a nitrogen content of up to 0.4% by weight.
  • a favorable kinetics for growth of the layer on the substrate can be achieved.
  • X-ray studies can be used to determine the structure of a PVD or CVD layer applied to a substrate or tool.
  • Single-phase crystalline, cubic-face-centered structure having high-temperature layers show at the same X-ray intensity due to the lattice planes of the crystals a much higher reflectance in the angular range of the compound TiN / AIN, as in Fig. 4 is illustrated.
  • test results of layers according to Fig. 4 show that high temperature layers applied at 575 ° C are at least 5-fold, preferably at least 10-fold, in intensity as measured in pulses by TiN as compared to low-temperature layers applied to 375 ° C (lower panel) / AIN at 2 theta (2 ⁇ ) between 60 and 80.
  • a milling cutter with grinding addition formed by cutting and subjected to a thermal treatment in vacuum at a solution annealing temperature of 1180 ° C with a subsequent quenching in nitrogen at 5 bar. This was followed by hardening of the raw mill at a temperature between 580 ° C and 620 ° C, for a period of between 2 and 4 hours.
  • a similar milling cutter was made of S-ISO-PM super high speed steel with a previously mentioned composition, thermally tempered and coated with hard material.
  • Figure 5 shows that the service life of the tool according to the invention was significantly greater or the cutting wear extremely low. Such a possible duration of use of a tool according to the invention can be extended to a high degree.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Chemical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
EP20080450060 2007-05-08 2008-04-22 Outil doté d'un revêtement Active EP1990438B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200830049T SI1990438T1 (sl) 2007-05-08 2008-04-22 Orodje s prevleko

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0070707A AT505221B1 (de) 2007-05-08 2007-05-08 Werkzeug mit beschichtung

Publications (2)

Publication Number Publication Date
EP1990438A1 true EP1990438A1 (fr) 2008-11-12
EP1990438B1 EP1990438B1 (fr) 2010-07-07

Family

ID=39650543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080450060 Active EP1990438B1 (fr) 2007-05-08 2008-04-22 Outil doté d'un revêtement

Country Status (11)

Country Link
US (1) US7851067B2 (fr)
EP (1) EP1990438B1 (fr)
AR (1) AR066254A1 (fr)
AT (2) AT505221B1 (fr)
BR (1) BRPI0801492B1 (fr)
CA (1) CA2630716C (fr)
DE (1) DE502008000891D1 (fr)
ES (1) ES2348322T3 (fr)
RU (1) RU2384650C2 (fr)
SI (1) SI1990438T1 (fr)
UA (1) UA91381C2 (fr)

Cited By (1)

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AT515148A1 (de) * 2013-12-12 2015-06-15 Böhler Edelstahl GmbH & Co KG Verfahren zur Herstellung von Gegenständen aus Eisen-Cobalt-Molybdän/Wolfram-Stickstoff-Legierungen

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US8740515B2 (en) * 2008-09-03 2014-06-03 Black & Decker Inc. Metal cutting drill bit
EP2502709B1 (fr) 2011-03-22 2017-02-01 Black & Decker Inc. Ciseaux
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
CN104122710B (zh) * 2013-04-27 2017-08-08 北京京东方光电科技有限公司 一种显示面板及其制造方法
RU2532632C1 (ru) * 2013-07-12 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" Способ получения износостойкого покрытия для режущего инструмента
RU2532620C1 (ru) * 2013-07-23 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" Способ получения износостойкого покрытия для режущего инструмента
CN104894483B (zh) * 2015-05-15 2018-07-31 安泰科技股份有限公司 粉末冶金耐磨工具钢
RU2605018C1 (ru) * 2015-06-22 2016-12-20 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") Способ получения высокотемпературного многослойного композита на металлической поверхности
SE539733C2 (en) * 2016-03-16 2017-11-14 Erasteel Sas A steel alloy and a tool
RU198076U1 (ru) * 2020-02-07 2020-06-17 Акционерное общество "Научно-производственное предприятие "Пульсар" Теплоотвод из композита алюминий-карбид кремния
RU2748537C1 (ru) * 2020-09-23 2021-05-26 федеральное государственное бюджетное образовательное учреждение высшего образования «Донской государственный технический университет» (ДГТУ) Способ изготовления оксидно-кремниевой карбидной режущей керамики новой фракции
CN115874110B (zh) 2021-09-29 2024-06-04 大同特殊钢株式会社 熔融固化成形用Fe基合金及金属粉末
CN114473384B (zh) * 2022-04-15 2022-12-09 泉州信息工程学院 一种数控矿山绳锯机主电机托板孔系精密加工工艺

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EP1052301A1 (fr) 1998-11-30 2000-11-15 Nippon Steel Corporation Acier ferritique presentant une excellente dependance dans la vitesse de deformation, et automobile utilisant ledit acier ferritique
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515148A1 (de) * 2013-12-12 2015-06-15 Böhler Edelstahl GmbH & Co KG Verfahren zur Herstellung von Gegenständen aus Eisen-Cobalt-Molybdän/Wolfram-Stickstoff-Legierungen
EP2886673A3 (fr) * 2013-12-12 2015-08-05 Böhler Edelstahl GmbH & Co KG Procédé de fabrication d'objets en alliages de fer- cobalt - molybdène/tungstène - azote inerte
US10066279B2 (en) 2013-12-12 2018-09-04 Boehler Edelstahl Gmbh & Co. Kg Method for producing objects from iron—cobalt—molybdenum/tungsten—nitrogen alloys

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AT505221A1 (de) 2008-11-15
UA91381C2 (en) 2010-07-26
RU2384650C2 (ru) 2010-03-20
BRPI0801492B1 (pt) 2019-11-26
SI1990438T1 (sl) 2010-09-30
BRPI0801492A2 (pt) 2008-12-30
ES2348322T3 (es) 2010-12-02
ATE473309T1 (de) 2010-07-15
US7851067B2 (en) 2010-12-14
EP1990438B1 (fr) 2010-07-07
RU2008118281A (ru) 2009-11-20
AR066254A1 (es) 2009-08-05
AT505221B1 (de) 2009-09-15
US20090007992A1 (en) 2009-01-08
CA2630716C (fr) 2012-02-14
CA2630716A1 (fr) 2008-11-08
DE502008000891D1 (de) 2010-08-19

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