EP3050997B1 - Verfahren zur diffusionsbeschichtung eines hitzebeständigen metallelements mit kriechverstärkungsmaterial und hitzebeständiges metallelement mit verstärkter kriechbeständigkeit - Google Patents

Verfahren zur diffusionsbeschichtung eines hitzebeständigen metallelements mit kriechverstärkungsmaterial und hitzebeständiges metallelement mit verstärkter kriechbeständigkeit Download PDF

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Publication number
EP3050997B1
EP3050997B1 EP13894771.8A EP13894771A EP3050997B1 EP 3050997 B1 EP3050997 B1 EP 3050997B1 EP 13894771 A EP13894771 A EP 13894771A EP 3050997 B1 EP3050997 B1 EP 3050997B1
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EP
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Prior art keywords
heat
steel
metal member
resistant metal
resistant
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EP13894771.8A
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English (en)
French (fr)
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EP3050997A1 (de
EP3050997A4 (de
Inventor
Hidetaka Nishida
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Publication of EP3050997A4 publication Critical patent/EP3050997A4/de
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    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2251/00—Treating composite or clad material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
    • 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
    • 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
    • Y10T428/12583—Component contains compound of adjacent metal
    • 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
    • Y10T428/12583—Component contains compound of adjacent metal
    • Y10T428/1259—Oxide
    • 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.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other

Definitions

  • the present invention relates to a method for diffusing and permeating a creep reinforcement material into a heat-resistant metal member, and to a heat-resistant metal member with creep strength enhanced by such a method.
  • US2013/0220523 discloses e.g. in example 4 a 430 steel foil was spray coated with a composition comprising e.g. Cr, Mo and B. Then the sprayed foil was put inside a steel pipe i.e. covered by the pipe. The steel foil was pressed against the pipe and the assembly was heat treated in vacuum under 1190-1225 C for 15 to 30 min.
  • An object of the present invention is to provide a method capable of efficiently diffusing and permeating a material that enhances creep strength (hereinafter referred to as a "creep reinforcement material") into a member manufactured using a heat-resistant metal material (hereinafter referred to as a "heat-resistant metal member”), and to provide a heat-resistant metal member with creep strength enhanced by such a method.
  • the present invention enables provision of a method capable of efficiently diffusing and permeating a creep reinforcement material into a heat-resistant metal member, and provision of a heat-resistant metal member with creep strength enhanced by such a method.
  • Fig. 1 is a schematic diagram illustrating a method for diffusing and permeating a creep reinforcement material into a heat-resistant metal member, to explain an embodiment of the present invention.
  • Fig. 2 is a schematic cross-section illustrating a cross-section of Fig. 1 , to explain an embodiment of the present invention.
  • explanation is of an example of a case in which an already installed (including repaired cases thereof) or unused, or a degraded, high temperature pipe manufactured using a heat-resistant metal material, is employed as a heat-resistant metal member 10, however, there is no limitation thereto.
  • the heat-resistant metal member 10 may be another high temperature member manufactured using a heat-resistant metal material, such as an already installed (including repaired cases thereof) or unused, or a degraded, turbine.
  • the creep reinforcement material is coated or thermally sprayed onto a surface of the heat-resistant metal member 10. Then a section 25 onto which the creep reinforcement material has been coated or thermally sprayed is covered by a heat-resistant covering member 30, and the heat-resistant covering member 30 is secured so as to make contact with the section 25. Next, the heat-resistant metal member 10 covered by the heat-resistant covering member 30 is heated for a specific duration at a temperature of 1000°C or greater using a heater 40.
  • the heat-resistant metal member 10 coated or thermally sprayed with the creep reinforcement material is covered by the heat-resistant covering member 30 and is heated to a temperature of 1000°C or greater, and thus compressive force acts on the heat-resistant metal member as it thermally expands in a direction toward an outer periphery, restraining thermal expansion of the heat-resistant metal member in the direction toward the outer periphery, and enabling the creep reinforcement material on the surface of the heat-resistant metal member 10 to be efficiently diffused and permeated into the heat-resistant metal member 10.
  • the heat-resistant metal member 10 is a degraded member or an already installed member
  • creep voids and cracks in the heat-resistant metal member 10 and a weld 20 thereof are efficiently repaired, enabling regeneration of the heat-resistant metal member 10 and the weld 20 thereof to be achieved.
  • structural strengthening of the heat-resistant metal member 10 and the weld 20 thereof can be achieved accompanying restoration of the structure of the heat-resistant metal member 10 and the weld 20 thereof.
  • the creep strength is accordingly enhanced, enabling the lifespan to be extended to that of a new member or greater.
  • etching treatment or shot peening and etching treatment, may be performed on the section 25 to be coated or thermally sprayed with the creep reinforcement material prior to coating or thermally spraying the creep reinforcement material on the surface of the heat-resistant metal member 10.
  • Such processing enables work hardening of the surface layer of the heat-resistant metal member 10 to be performed by plastic deformation, enables residual compressive stress to be imparted to the surface of the heat-resistant metal member 10, and enables any oxidized film on the surface of the heat-resistant metal member 10 to be removed.
  • processing to remove (reduce) residual stress may be performed after the heat-resistant metal member 10 covered by the heat-resistant covering member 30 has been heated to a temperature of 1000°C or greater using the heater 40.
  • the heat-resistant metal member 10 may be first cooled to room temperature, then reheated to a temperature of an A 1 transformation point or greater (preferably from 10°C to 100°C above 1000°C) for a specific duration (for example, from approximately several hours to approximately 24 hours).
  • the heat-resistant metal member 10 in order to restrict thermal expansion of the heat-resistant metal member 10 toward the outside in the length direction thereof (in directions toward the ends of the heat-resistant metal member 10) occurring when the heat-resistant metal member 10, which has been coated or thermally sprayed with the creep reinforcement material, is covered by the heat-resistant covering member 30 and heated by the heater 40, the heat-resistant metal member 10 may be secured in sections not being heated by the heater 40, by, for example, two clamps so as to sandwich the section being heated by the heater 40.
  • the heat-resistant metal of the member 10 is made of 0.3Mo steel, 0.5Mo steel, 0.5Cr-0.5Mo steel, 1Cr-0.2Mo steel, 1Cr-0.5Mo steel, 1.25Cr-0.5Mo steel, 2.25Cr-1Mo steel, 5Cr-0.5Mo steel, 7Cr-0.5Mo steel, 9Cr-1Mo steel, 0.3Cr-Mo-V steel, 0.5Cr-Mo-V steel, 9Cr-Mo-V steel, 12Cr-Mo-V steel, 1Cr-1.25Mo-0.25V steel, 9Cr-1Mo-W steel, SUS304, SUS304L, SUS316, SUS316L, SUS316TI, SUS317, SUS321, SUS347H, SUS310S, Super304, SUS904L, NCF600, NCF601, NCF800, and NCF800H.
  • the creep reinforcement material needs to contain an element which has a melting point of 1000°C or greater and in which precipitation strengthening and solid solution strengthening occur upon heating to a temperature of 1000°C or greater so as to enable creep strength to be enhanced.
  • the heat-resistant metal member 10 the creep reinforcement material contains one or a plurality of elements appropriately selected from B (boron), W (tungsten), Cr (Chromium), Mo (molybdenum), Nb (niobium), V (vanadium), Hf (hafnium), Zr (zirconium), Ti (titanium), Cu (copper), and Co (cobalt).
  • the creep reinforcement material is coated on the surface of the heat-resistant metal member 10
  • powdered creep reinforcement material may be employed as it is, or a coating agent of the creep reinforcement material in a liquid form or paste form using a binder, solvent, adhesive or the like may be employed.
  • a known thermal spray method may be appropriately employed, such as a plasma spraying method using powdered creep reinforcement material. Note that coating or thermally spraying of the creep reinforcement material on the surface of the heat-resistant metal member 10 may be performed over the entire outer peripheral surface of the heat-resistant metal member 10 as in the present embodiment, or may be performed on a part of the surface of the heat-resistant metal member 10.
  • the heat-resistant covering member 30 needs to be capable of covering the section 25 coated or thermally sprayed with the creep reinforcement material so as to make contact with the section 25, as long as it is made from a heat-resistant material that restrains thermal expansion in the section 25 in the direction toward the outer periphery of the heat-resistant metal member 10 occurring when heated to the heating temperature mentioned above, and is able to maintain the approximate profile of the heat-resistant metal member 10 at the section 25.
  • a material having a lower thermal expansion coefficient than the heat-resistant metal member 10 at temperatures of the heating temperature mentioned above or greater is preferably employed for the heat-resistant covering member 30.
  • the heat-resistant covering member 30 is configured from a heat-resistant material different from that of the heat-resistant metal member 10, yet having a thermal expansion coefficient of about the same as the heat-resistant metal member 10, or from a heat resistant material having a higher thermal expansion coefficient than the heat-resistant metal member 10, in order to restrain the thermal expansion of the heat-resistant covering member 30 occurring when heated to the heating temperature mentioned above, the outer periphery of the heat-resistant covering member 30 may be secured by a member of a heat-resistant material having a lower thermal expansion coefficient than the heat-resistant metal member 10 at or above the heating temperature mentioned above, so as to maintain the profile of the heat-resistant covering member 30.
  • the heat-resistant covering member 30 being a ceramic or an alloy, including ceramics such as alumina, zirconia, aluminum nitride, silicon carbide, silicon nitride, cordierite, sialon, zircon, and mullite, and alloys such as Alloy 903, Alloy 909, and HRA 929.
  • the heat-resistant covering member 30 is, for example, of a cord, plate, or clamp shape. Securing of the above may be performed by, for example, wrapping a cord-shaped or plate-shaped heat-resistant covering member 30 around the outer periphery of the heat-resistant metal member 10 at the section 25 coated or thermally sprayed with the creep reinforcement material, by attaching a clamp-shaped heat-resistant covering member 30 to the outer periphery of the heat-resistant metal member 10 at the section 25 coated or thermally sprayed with the creep reinforcement material, or by attaching a heat-resistant covering member 30 formed in a plate shape or the like to the outer periphery of a heat-resistant metal member 10 at the section 25 coated or thermally sprayed with the creep reinforcement material using fasteners, such as clamps or screws.
  • the heat-resistant covering member 30 is made from fittings including two substantially semi-circular arc cross-section shapes.
  • the heat-resistant covering member 30 is then secured to the surface of the heat-resistant metal member 10 using threaded members 35 attached to flanges of these fittings, such that the inner face of the fittings contact the outer periphery of the heat-resistant metal member 10 at the section 25 coated or thermally sprayed with the creep reinforcement material.
  • the threaded members 35 are manufactured, for example, from the same material as the heat-resistant covering member 30.
  • the heating temperature of the heat-resistant metal member 10 coated or thermally sprayed with the creep reinforcement material is a temperature of 1000°C or greater.
  • the heat-resistant metal member 10 is heated at a temperature of, or greater than, an A 3 transformation point of the component of the heat-resistant metal material of the member 10 or the creep reinforcement material having the highest A 3 transformation point (preferably from 10°C to 100°C above 1000°C) for a specific duration (for example, from approximately several hours to approximately 24 hours) .
  • the present embodiment employs, as a heating device, the high frequency heater 40, which is capable of heating the heat-resistant metal member 10 coated or thermally sprayed with the creep reinforcement material, from the outer periphery thereof, there is no particular limitation thereto, as long as a heating device capable of heating the heat-resistant metal member 10 at the section 25 coated or thermally sprayed with the creep reinforcement material.
  • the product of diffusing and permeating the creep reinforcement material into the heat-resistant metal member 10 by the method described above is useful as a heat-resistant metal member with enhanced creep strength due to the creep strength being enhanced as described above.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Claims (4)

  1. Verfahren zum Diffusionsbeschichten und Permeieren eines hitzebeständigen Metallelements mit einem Kriechverstärkungsmaterial, wobei das Verfahren umfasst:
    Beschichten oder thermisches Spritzen eines Kriechverstärkungsmaterials auf eine Oberfläche eines hitzebeständigen Metallelements;
    Bedecken, durch ein hitzebeständiges Deckelement, eines Abschnitts, der mit dem Kriechverstärkungsmaterial beschichtet oder thermisch gespritzt ist, und Sichern des hitzebeständigen Abdeckelements, so dass es den Abschnitt berührt; und
    Erhitzen des hitzebeständigen Metallelements, das durch das hitzebeständige Abdeckelement bedeckt ist, auf eine Temperatur von 1000 °C oder mehr,
    wobei das Kriechverstärkungsmaterial eines oder eine Vielzahl von Elementen ausgewählt aus B, W, Cr, Mo, Nb, V, Hf, Zr, Ti, Cu, und Co enthält,
    wobei das hitzebeständige Metallelement aus 0,3Mo Stahl, 0,5Mo Stahl, 0,5Cr-0,5Mo Stahl, 1Cr-0,2Mo Stahl, 1Cr-0,5Mo Stahl, 1,25Cr-0,5Mo Stahl, 2,25Cr-1Mo Stahl, 5Cr-0,5Mo Stahl, 7Cr-0,5Mo Stahl, 9Cr-1Mo Stahl, 0,3Cr-Mo-V Stahl, 0,5Cr-Mo-V Stahl, 9Cr-Mo-V Stahl, 12Cr-Mo-V Stahl, 1Cr-1,25Mo-0,25V Stahl, 9Cr-1Mo-W Stahl, SUS304, SUS304L, SUS316, SUS316L, SUS316TI, SUS317, SUS321, SUS347H, SUS310S, Super304, SUS904L, NCF600, NCF601, NFC800, oder NCF800H gefertigt ist,
    wobei das hitzebeständige Abdeckelement eine Keramik oder eine Legierung ist.
  2. Verfahren nach Anspruch 1, wobei
    nach dem Erhitzen des hitzebeständigen Metallelements, das durch das hitzebeständige Abdeckelement bedeckt ist, auf eine Temperatur von 1000 °C oder mehr das durch das hitzebeständige Abdeckelement bedeckte hitzebeständige Metallelement abgekühlt wird und wieder auf eine Temperatur eines A1 Transformationspunkts oder höher erhitzt wird.
  3. Hitzebeständiges Metallelement mit verbesserter Kriechfestigkeit, wobei das hitzebeständige Metallelement (10) erhalten wird durch
    Beschichten oder thermisches Spritzen eines Kriechverstärkungsmaterials (25) auf eine Oberfläche eines hitzebeständigen Metallelements,
    Bedecken eines Abschnitts, der mit dem Kriechverstärkungsmaterial beschichtet oder thermisch bespritzt ist, durch ein hitzebeständiges Abdeckelement (30), und Sichern des hitzebeständigen Abdeckelements, so dass es den Abschnitt berührt, und
    Erhitzen des hitzebeständigen Metallelements, das durch das hitzebeständige Abdeckelement bedeckt wird, auf eine Temperatur von 1000 °C oder mehr; und
    wobei das Kriechverstärkungsmaterial (25) eines oder eine Vielzahl von Elementen ausgewählt aus B, W, Cr, Mo, Nb, V, Hf, Zr, Ti, Cu, und Co enthält,
    wobei das hitzebeständige Metallelement (10) aus 0,3Mo Stahl, 0,5Mo Stahl, 0,5Cr-0,5Mo Stahl, 1Cr-0,2Mo Stahl, 1Cr-0,5Mo Stahl, 1,25Cr-0,5Mo Stahl, 2,25Cr-1Mo Stahl, 5Cr-0,5Mo Stahl, 7Cr-0,5Mo Stahl, 9Cr-1Mo Stahl, 0,3Cr-Mo-V Stahl, 0,5Cr-Mo-V Stahl, 9Cr-Mo-V Stahl, 12Cr-Mo-V Stahl, 1Cr-1,25Mo-0,25V Stahl, 9Cr-1Mo-W Stahl, SUS304, SUS304L, SUS316, SUS316L, SUS316TI, SUS317, SUS321, SUS347H, SUS310S, Super304, SUS904L, NCF600, NCF601, NFC800, oder NCF800H gefertigt ist,
    wobei das hitzebeständige Abdeckelement (30) eine Keramik oder eine Legierung ist.
  4. Hitzebeständiges Metallelement nach Anspruch 3, wobei
    das hitzebeständige Metallelement erhalten wird durch, nach dem Erhitzen des durch das hitzebeständige Abdeckelement bedeckten hitzebeständigen Metallelements auf eine Temperatur von 1000 °C oder mehr, Abkühlen und Wiedererhitzen auf eine Temperatur eines A1-Transformationspunktes oder mehr.
EP13894771.8A 2013-09-25 2013-09-25 Verfahren zur diffusionsbeschichtung eines hitzebeständigen metallelements mit kriechverstärkungsmaterial und hitzebeständiges metallelement mit verstärkter kriechbeständigkeit Not-in-force EP3050997B1 (de)

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PL13894771T PL3050997T3 (pl) 2013-09-25 2013-09-25 Sposób powlekania dyfuzujnego żaroodpornego elementu metalowego materiałem wzmacniającym przed pełzaniem, oraz żaroodporny element metalowy o zwiększonej wytrzymałości na pełzanie

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PCT/JP2013/075927 WO2015045038A1 (ja) 2013-09-25 2013-09-25 耐熱金属材料部材に対するクリープ強化材の拡散浸透方法、及びクリープ強度を強化させた耐熱金属材料部材

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KR102155888B1 (ko) * 2017-09-11 2020-09-14 주식회사 엘지화학 레이저 용접 지그 및 이를 포함하는 레이저 용접 장치
CN108161209B (zh) * 2017-12-23 2021-06-15 河南瀚银光电科技股份有限公司 铝基复合材料及其制备方法
JP6624334B1 (ja) * 2018-09-27 2019-12-25 中国電力株式会社 耐熱合金製部品の補修方法
CN112094997B (zh) * 2020-09-15 2022-02-15 中南大学 一种改善低合金超高强钢焊件耐腐蚀性能的方法

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JPH0794705B2 (ja) * 1990-04-19 1995-10-11 日本鋼管株式会社 耐摩耗性複合材料及びその製造方法
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EP3050997A1 (de) 2016-08-03
US20160230262A1 (en) 2016-08-11
CA2924624A1 (en) 2015-04-02
CN105555988A (zh) 2016-05-04
WO2015045038A1 (ja) 2015-04-02
KR20160043033A (ko) 2016-04-20
CA2924624C (en) 2017-12-12
JPWO2015045038A1 (ja) 2017-03-02
PL3050997T3 (pl) 2018-12-31
EP3050997A4 (de) 2016-09-21
JP5925958B2 (ja) 2016-05-25

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