US3246981A - Homogenous ductile nickel base alloy weld deposit and method for producing same - Google Patents

Homogenous ductile nickel base alloy weld deposit and method for producing same Download PDF

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US3246981A
US3246981A US347945A US34794564A US3246981A US 3246981 A US3246981 A US 3246981A US 347945 A US347945 A US 347945A US 34794564 A US34794564 A US 34794564A US 3246981 A US3246981 A US 3246981A
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nickel
powder
base alloy
nickel base
mixture
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Joseph F Quaas
Daniel P Tanzman
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3033—Ni as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • 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
    • C22C1/0433—Nickel- or cobalt-based alloys
    • 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
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
    • 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
    • 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
    • C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Definitions

  • This invention relates to a method and metal powder for welding joints and more particularly to such a method and metal powder for flame spraying joints.
  • An object of this invention is to provide a method and metal powder for welding in which the metal powder possesses advantageous characteristics superior to conventional materials with improved ductility also.
  • a further object of this invention is to provide such a method and a metal power which is applied with low cost deposition.
  • nickel powders of finer than 150 mesh are added to a lower melting nickel base alloy powder to obtain a heterogeneous mixture in which the nickel powders comprise from 10 to 50% by weight of the mixture.
  • the mixture is simultaneously flame sprayed and fused to obtain a homogeneous ductile deposit.
  • the melting temperature of the mixture is substantially that of the nickel base alloy although the nickel powder itself has a higher melting temperature and comprises such a relatively large amount of the mixture or filler metal.
  • the resultant deposited metal has vastly improved ductility over the nickel base alloy alone.
  • the superior qualities of the pure nickel are thereby obtained in the deposit at lower temperatures because of the interreaction between the purenickel and the alloy.
  • the nickel powders comprise from 30 to 40% of the mixture.
  • FIG. 1 shows the microstructure of a conventional nickel base alloy
  • FIG. 2 shows the microstructure of the nickel base alloy shown in FIG. 1 after deposit in accordance with this invention with nickel powders added;
  • FIG. 3 shows the microstructure of another nickel base alloy
  • FIG. 4 shows the microstructure of the nickel base alloy shown in FIG. 3 after deposit in accordance with this invention with nickel powder added;
  • FIG. 5 shows the microstructure of still another nickel base alloy
  • FIG. 6 shows the microstructure of the nickel base alloy shown in FIG. 5 after deposit in accordance with the invention with nickel powder added.
  • FIG. 1 is shown the microstructure of a nickel base alloy containing the following composition: 2.6% Si, 1.5% B, 0.5% Fe, 0.03% C.
  • FIG. 2 shows the same alloy after a 30% addition of nickel powder and deposit in accordance with this invention. As shown in FIG. 1, the grains 10 of nickel are relatively small as compared with the much larger grains 12 shown in FIG. 2. The proportion of the hard intergranular constituents in FIG. 2 are reduced to a level which permits the alloy to possess greater ductility and lower indentation hardness as a result of the addition of pure nickel powder.
  • FIGS. 3 and 4 show the effect of a 40% addition of nickel powder to NiB-4 nickel base alloy containing the following composition: 3.54% Si, 2.02% B, 0.45% Fe, 0.04% C.
  • the resultant nickel grains 14 of the nickel solid solution after deposit in accordance with this invention are exceedingly larger than the nickel grains 16 shown in FIG. 3.
  • the microstructure shown in FIG. 4 indicates the greatly reduced amount of hard intergranular constituents which thereby results in vastly improved ductility.
  • FIGS. 5 and 6 show the effect of a 30% nickel powder addition to NiB-l, nickel base alloy containing the following composition: 14.9% Cr, 4.3% Si, 3.4% B, 4.2% Fe, 0.68% C.
  • the large nickel rich grains 20 shown in FIG. 6 of a deposit in accordance with this invention contain boron, silicon, and iron in a solid solution and indicate the improved ductility and lower indentation hardness of the heterogeneous mixture.
  • This improved ductility is obtained with the retention of the desirable qualities, such as the ability of being deposited at satisfactory melting temperatures, of conventional nickel base alloys by adding from 10 to 50% by weight of nickel powders to the nickel base alloys.
  • Some of the advantageous nickel base alloys are described as NiB-l, NiB-Z, NiB-3 and NiB-4 in Table I, page 4 of the American Welding Society Specification A5.862T.
  • the resultant nickel mixture is particularly eflective when it is sprayed and fused in a single operation on, for example, a joint by using for example a conventional flame spraying torch or a flame spraying torch of the type described in copending application. Serial No. 289,474, filed June 21, 1963, or a torch of the type described in US.
  • Patent 2,786,779 to obtain a low cost homogeneous nickel deposit having a higher remelt temperature than the temperature at which the heterogeneous powder mixture is applied such as approximately 2400 F.
  • the nickel mixture has, upon spraying, excellent wetting-on flow characteristics.' This result is particularly unexpected when the much higher melting point of the powder is considered.
  • the melting point of the pure nickel is 2652 F. as compared with an alloy melting point of 2400 F.
  • the power is very rapidly taken into solution at the temperature normally used to deposit the nickel base alloy itself. A fluid molten pool is thereby produced which ,wets the base metal and can be manipulated very similarly to the nickel base alloy involved.
  • the following table shows the effect of nickel powder additions on lowering the hardness of the nickel base alloy powder containing the following composition: 2.6% Si, 1.5% B, .5% Fe, .03% C.
  • Example 1 NiB-l Nickel powder Weight percent 90-50 10-50 Preferred mixture, percent. 70 30 Mesh size range 150 150 Preferred mesh size -150+400 -200-]-400
  • Example 2 N iB-4 Nickel powder 90-50 10-50 60 40 100 -l50 Preferred mesh size 150+400 -200+400
  • Example 3 Nickelbron- Nickel silicon alloy powder Weight percent 90-50 10-50 Preferred mixture, percent 70 30 Mesh size range -150 150 referred mesh size 150+400 200+400
  • An advantageous nickel base alloy is:
  • a homogenous ductile nickel base alloy weld deposit of uniform hardness formed from a metal powder mixture consisting essentially of a nickel base alloy powder and nickel powder mixed with said alloy powder to provide a heterogeneous mixture, said nickel powder being in the range of 10 to 50% by weight of said mixture, said mixture having the characteristic of said nickel powder being completely soluble in said nickel base alloy powder whereas said nickel base alloy deposit has a lower hardness than said nickel base alloy powder in said heterogeneous mixture.
  • a process for depositing a nickel alloy composition upon a base metal comprising the steps of adding nickel powder to a nickel base alloy powder having a relatively lower melting temperature, maintaining said mixture heterogeneous and thereby including separate particles of said powders, said added nickel powder ranging approximately from 10 to 50% by weight of said heterogeneous mixture, and simultaneously spraying and fusing said heterogeneous mixture upon said base metal at a temperature above the said melting temperature of said nickel base alloy powder and below the melting temperature of said nickel powder to obtain a homogeneous nickel alloy composition deposit upon said base metal having a remelting temperature higher than the temperature at which it is simultaneously sprayed and fused.
  • nickel base alloy consists essentially of the following constituents in the indicated ranges of percentages by weight:
  • Nickel Balance 9 A nickel base alloy metal powder as set forth in claim 8 wherein said ranges of percentages by weight are:
  • Nickel Balance 10 A metal powder mixture as set forth in claim 1 wherein said nickel base alloy consists essentially of the following constituents in the indicated ranges of percentages by weight:

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Coating By Spraying Or Casting (AREA)

Description

April 1966 J. F. QuAAs ETAL 3,246,981
HOMOGENOUS DUGTILE NICKEL BASE ALLOY WELD DEPOSIT AND METHOD FOR PRODUCING SAME Filed Feb. 27, 1964 3 Sheets-Sheet 1 PRIOR ART INVENTORS Jaseph F. Quaas 9r Um'el; P. Tanzman ATTORNEYEB April 19, 1966 J. F. QUAAS ETAL 3,246,981
HOMOGENOUS DUCTILE NICKEL BASE ALLOY WELD DEPOSIT AND METHOD FOR PRODUCING SAME Filed Feb. 27, 1964 5 Sheets-Sheet 2 PRIOR ART iNVEMTORS Joseph FQuaas anieL RTmzzman ATTORNEYS April 19., 1966 J. F. QUAAS ETAL. 3,246,931
HOMOGENOUS DUCTILE NICKEL BASE ALLOY WELD DEPOSIT AND METHOD FOR PRODUCING SAME Filed Feb. 27, 1964 3 Sheets-Sheet 5 PRIOR ART ATTORNEYS, Joseph FQuzms&
Daniel, P Tanzman BY/ M AT'mRNEYs United States Patent HOMOGENOUS DUCTILE NICKEL BASE ALLOY WELD DEPGSIT AND METHUD FOR PRODUC- ING SAME Joseph F. Quaas, Island Park, and Daniel I. Tanzman, Far Rockaway, N.Y. Filed Feb. 27, 1964, Ser. No. 347,945 16 Claims. (Cl. 75170) This invention relates to a method and metal powder for welding joints and more particularly to such a method and metal powder for flame spraying joints.
Although conventional metal powders can be satisfactorily deposited on, for example, joints at acceptable temperatures, these deposits are not as ductile as desired.
An object of this invention is to provide a method and metal powder for welding in which the metal powder possesses advantageous characteristics superior to conventional materials with improved ductility also.
A further object of this invention is to provide such a method and a metal power which is applied with low cost deposition.
In accordance with this invention, nickel powders of finer than 150 mesh are added to a lower melting nickel base alloy powder to obtain a heterogeneous mixture in which the nickel powders comprise from 10 to 50% by weight of the mixture. The mixture is simultaneously flame sprayed and fused to obtain a homogeneous ductile deposit. Surprisingly, the melting temperature of the mixture is substantially that of the nickel base alloy although the nickel powder itself has a higher melting temperature and comprises such a relatively large amount of the mixture or filler metal. However, the resultant deposited metal has vastly improved ductility over the nickel base alloy alone. The superior qualities of the pure nickel are thereby obtained in the deposit at lower temperatures because of the interreaction between the purenickel and the alloy. In an advantageous form of this invention the nickel powders comprise from 30 to 40% of the mixture.
Novel features and advantages of the present invention will become apparent to one skilled in the art from a reading of the following description in conjunction with the accompanying drawings wherein similar reference characters refer to similar parts and in which:
FIG. 1 shows the microstructure of a conventional nickel base alloy;
FIG. 2 shows the microstructure of the nickel base alloy shown in FIG. 1 after deposit in accordance with this invention with nickel powders added;
FIG. 3 shows the microstructure of another nickel base alloy;
FIG. 4 shows the microstructure of the nickel base alloy shown in FIG. 3 after deposit in accordance with this invention with nickel powder added;
FIG. 5 shows the microstructure of still another nickel base alloy; and
FIG. 6 shows the microstructure of the nickel base alloy shown in FIG. 5 after deposit in accordance with the invention with nickel powder added.
In FIG. 1 is shown the microstructure of a nickel base alloy containing the following composition: 2.6% Si, 1.5% B, 0.5% Fe, 0.03% C. FIG. 2 shows the same alloy after a 30% addition of nickel powder and deposit in accordance with this invention. As shown in FIG. 1, the grains 10 of nickel are relatively small as compared with the much larger grains 12 shown in FIG. 2. The proportion of the hard intergranular constituents in FIG. 2 are reduced to a level which permits the alloy to possess greater ductility and lower indentation hardness as a result of the addition of pure nickel powder.
Similarly, FIGS. 3 and 4 show the effect of a 40% addition of nickel powder to NiB-4 nickel base alloy containing the following composition: 3.54% Si, 2.02% B, 0.45% Fe, 0.04% C. As shown in FIG. 4 the resultant nickel grains 14 of the nickel solid solution after deposit in accordance with this invention are exceedingly larger than the nickel grains 16 shown in FIG. 3. The microstructure shown in FIG. 4 indicates the greatly reduced amount of hard intergranular constituents which thereby results in vastly improved ductility.
FIGS. 5 and 6 show the effect of a 30% nickel powder addition to NiB-l, nickel base alloy containing the following composition: 14.9% Cr, 4.3% Si, 3.4% B, 4.2% Fe, 0.68% C. As compared with the very hard deposit having small nickel grains 18 shown in FIG. 5 the large nickel rich grains 20 shown in FIG. 6 of a deposit in accordance with this invention contain boron, silicon, and iron in a solid solution and indicate the improved ductility and lower indentation hardness of the heterogeneous mixture.
This improved ductility is obtained with the retention of the desirable qualities, such as the ability of being deposited at satisfactory melting temperatures, of conventional nickel base alloys by adding from 10 to 50% by weight of nickel powders to the nickel base alloys. Some of the advantageous nickel base alloys are described as NiB-l, NiB-Z, NiB-3 and NiB-4 in Table I, page 4 of the American Welding Society Specification A5.862T. The resultant nickel mixture is particularly eflective when it is sprayed and fused in a single operation on, for example, a joint by using for example a conventional flame spraying torch or a flame spraying torch of the type described in copending application. Serial No. 289,474, filed June 21, 1963, or a torch of the type described in US. Patent 2,786,779 to obtain a low cost homogeneous nickel deposit having a higher remelt temperature than the temperature at which the heterogeneous powder mixture is applied such as approximately 2400 F. Surprisingly, the nickel mixture has, upon spraying, excellent wetting-on flow characteristics.' This result is particularly unexpected when the much higher melting point of the powder is considered. For example, the melting point of the pure nickel is 2652 F. as compared with an alloy melting point of 2400 F. However, where the nickel powders are of particle size finer than 150 mesh, the power is very rapidly taken into solution at the temperature normally used to deposit the nickel base alloy itself. A fluid molten pool is thereby produced which ,wets the base metal and can be manipulated very similarly to the nickel base alloy involved. That the molten pool dissolves the nickel completely is proven by the fact that no segregation of nickel has been found in the microstructures of numerous deposits made with up to 50% nickel powder addition. FIGS. 2, 4, and 6, for example, show that the microstructure produced by nickel powder additions is characterized by greater solution of the hard constituents.
The following table shows the effect of nickel powder additions on lowering the hardness of the nickel base alloy powder containing the following composition: 2.6% Si, 1.5% B, .5% Fe, .03% C.
I Mixture Weight percent Rockwell B hardness nickel powder 1 0 RB 93-98 2 10 RB 90-91 15 RB 86-89 4 20 RB 78-82 30 RB -78 40 RB 65-70 50 RB 57-62 As is readily apparent from the preceding table, sub- 35 stantial reductions of deposit hardness are obtained with the use of the heterogeneous powders, especially where the powders constitute at least 10% by weight of the mixture. Further, the consistency of hardness values along with the length of a given deposit clearly indicates that the powdered nickel has gone completely into solution.
The following examples illustrate mixtures that satisfy the objectives of this invention:
Example 1 NiB-l Nickel powder Weight percent 90-50 10-50 Preferred mixture, percent. 70 30 Mesh size range 150 150 Preferred mesh size -150+400 -200-]-400 Example 2 N iB-4 Nickel powder 90-50 10-50 60 40 100 -l50 Preferred mesh size 150+400 -200+400 Example 3 Nickelbron- Nickel silicon alloy powder Weight percent 90-50 10-50 Preferred mixture, percent 70 30 Mesh size range -150 150 referred mesh size 150+400 200+400 An advantageous nickel base alloy is:
Constituent Rangeto-Preierred range Example,
percent 5. 0-15. 0 13. 0-15. 0 14. 9 2. 0-5. 0 3.0-5. 0 4. 3 1. 0-4. 0 2. 7-4. 0 3. 4 0. 1-8. 0 3. 0-5. 0 4. 2 0. 1l. 5 0. 6-0. 9 08 Balance Balance Balance Another advantageous nickel base alloy is:
Constituent Rangcto-Preferred range Example,
percent 2. 0-6. 0 3. 0-5. 0 3. 54 1. 0-4. 0 1. 5-2. 5 2. 02 0. 2-5. 0 0. 3-1. 0 45 0. 01-0. 3 0. 01-0. 10 04 Bala ce Balance Balance Another advantageous nickel base alloy is:
Constituent Rangctolrelerred range Example,
percent 1. 0-4. 0 1. 0-2. 5 1. 5 1. 0-0. 0 1. 0-4. 0 2. 6 0. 2-5. 0 0. 2-1. 0 5 0. 01-0. 3 0. 01-0. 1 03 Balance Balance Balance What is claimed is:
1. A homogenous ductile nickel base alloy weld deposit of uniform hardness formed from a metal powder mixture consisting essentially of a nickel base alloy powder and nickel powder mixed with said alloy powder to provide a heterogeneous mixture, said nickel powder being in the range of 10 to 50% by weight of said mixture, said mixture having the characteristic of said nickel powder being completely soluble in said nickel base alloy powder whereas said nickel base alloy deposit has a lower hardness than said nickel base alloy powder in said heterogeneous mixture.
2. A process for depositing a nickel alloy composition upon a base metal comprising the steps of adding nickel powder to a nickel base alloy powder having a relatively lower melting temperature, maintaining said mixture heterogeneous and thereby including separate particles of said powders, said added nickel powder ranging approximately from 10 to 50% by weight of said heterogeneous mixture, and simultaneously spraying and fusing said heterogeneous mixture upon said base metal at a temperature above the said melting temperature of said nickel base alloy powder and below the melting temperature of said nickel powder to obtain a homogeneous nickel alloy composition deposit upon said base metal having a remelting temperature higher than the temperature at which it is simultaneously sprayed and fused.
3. A metal powder mixture as set forth in claim 1 wherein said nickel powder has a particle size finer than mesh.
4. A metal powder mixture as set forth in claim 3 wherein said nickel powder has a particle size less than 200 mesh and greater than 400 mesh.
5. A process as set forth in claim 2 wherein the particle size of said nickel powder is maintained finer than 150 mesh.
6. A process as set forth in claim 5 wherein the particle size of said nickel powder is maintained less than 200 mesh and greater than 400 mesh.
7. A metal powder mixture as set forth in claim 1 wherein said nickel powder is in the range of 30 to 40% by weight of said mixture.
8. A metal powder mixture as set forth in claim 1 wherein said nickel base alloy consists essentially of the following constituents in the indicated ranges of percentages by weight:
Constituent: Range Silicon 2.0-6.0 Boron 1.0-4.0
Iron 0.2-5.0
Carbon 0.0l-0.3
Nickel Balance 9. A nickel base alloy metal powder as set forth in claim 8 wherein said ranges of percentages by weight are:
Constituent: Range Silicon 3.0-5.0
Boron 1.5-2.5
Iron 0.3-1.0
Carbon 0.01-0.10
Nickel Balance 10. A metal powder mixture as set forth in claim 1 wherein said nickel base alloy consists essentially of the following constituents in the indicated ranges of percentages by weight:
11. A nickel base alloy metal powder as set-forth in claim 10 wherein said ranges of percentages by weight are:
Constituent: Range Boron l.0-2.5
Silicon l.0-4.0
Iron 0.2-1.0
Carbon 0.01-0.l Nickel Balance 12. A process as set forth in claim 2 wherein said nickel 6 powder is maintained in the range of to by Constituent: Range weight of said mixture. Boron 1.0-4.0 13. A process as set forth in claim 2 wherein said nickel Silicon 1.0-6.0 base alloy consists essentially of the following constituents Iron 0.2-5 .0 in'the indicated ranges of percentages by weight: Carbon 0.010.3 Constituent: Range Nlckel Balance Silicon 2.0-6.0 16. A process as set forth in claim 15 wherein said Boron 1.0-4.0 ranges of percentagesby weight are: Iron 0.2-5.0 Carbon 001-03 10 g Range ron 1.02.5 Nlckel Balance Silicon 14. A process as set forth in claim 13 wherein said Iron ranges of percentages by weight are: Carbon 0 1 Nickel Balance Constituent: Range Silicon "r References Cited by the Examiner Boron 1.5-2.5 Iron UNITED STATES PATENTS carbon 0 01 0 10 2,868,667 1/1959 Bowles -171 Nickel Bala e 2,936,229 5/1960 Shepard 7s 15. A process as set forth in claim 2 wherein said nickel base alloy consists essentially of the following constituents in the indicated ranges of percentages by weight:
DAVID L. RECK, Primary Examiner.
WINSTON A. DOUGLAS, Examiner.
25 C. M. SCHUTZMAN, Assistant Examiner.

Claims (1)

1. A HOMOGENOUS DUCTILE NICKEL BASE ALLOY WELD DEPOSIT OF UNIFORM HARDNESS FORMED FROM A METAL POWDER MIXTURE CONSISTING ESSENTIALLY OF A NICKEL BASE ALLOY POWDER AND NICKEL POWDER MIXED WITH SAID ALLOY POWDER TO PROVIDE A HETEROGENEOUS MIXTURE, SAID NICKEL POWDER BEING IN THE RANGE OF 10 TO 50% BY WEIGHT OF SAID MIXTURE, SAID MIXTURE HAVING THE CHARACTERISTIC OF SAID NICKEL POWDER BEING COMPLETELY SOLUBLE IN SAID NICKEL BASE ALLOY POWDER WHEREAS SAID NICKEL ALLOY DEPOSIT HAS A LOWER HARDNESS THAN SAID NICKEL BASE ALLOY POWDER IN SAID HETEROGENEOUS MIXTURE.
US347945A 1964-02-27 1964-02-27 Homogenous ductile nickel base alloy weld deposit and method for producing same Expired - Lifetime US3246981A (en)

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US347945A US3246981A (en) 1964-02-27 1964-02-27 Homogenous ductile nickel base alloy weld deposit and method for producing same
CH266965A CH435938A (en) 1964-02-27 1965-02-26 Metal powder for welding
GB8347/65A GB1108813A (en) 1964-02-27 1965-02-26 Improved method for welding and metal powder therefor
FR7285A FR1425774A (en) 1964-02-27 1965-02-26 Process and metal powder for welding

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US3632319A (en) * 1969-07-11 1972-01-04 Gen Electric Diffusion bonding of superalloy members
US3769689A (en) * 1972-01-12 1973-11-06 Nasa Method of making pressure-tight seal for super alloy
US4077560A (en) * 1975-02-03 1978-03-07 Johnson & Johnson Dental solder
US4478638A (en) * 1982-05-28 1984-10-23 General Electric Company Homogenous alloy powder
WO1989003264A1 (en) * 1987-10-16 1989-04-20 Avco Corporation High temperature metal alloy mixtures for filling holes and repairing damages in superalloy bodies
US5040718A (en) * 1987-10-16 1991-08-20 Avco Corporation Method of repairing damages in superalloys
US5098470A (en) * 1988-07-14 1992-03-24 Rolls-Royce Plc Alloy mix of two alloy powders
US5149597A (en) * 1989-02-10 1992-09-22 Holko Kenneth H Wear resistant coating for metallic surfaces
US5403376A (en) * 1992-03-18 1995-04-04 Printron, Inc. Particle size distribution for controlling flow of metal powders melted to form electrical conductors

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HU186714B (en) * 1983-06-17 1985-09-30 Vedecko Vizkumny Uhelny Ustav Protective coating for surface protection of pieces made of light material or light alloy
DE3662091D1 (en) * 1985-11-29 1989-03-23 Atochem Large metal-plastic containers constructed by welding, and process for their manufacture
FR2744046B1 (en) * 1996-01-30 1998-04-30 Framatome Sa METHOD FOR MANUFACTURING HIGH-HARDNESS METAL MATERIAL AND USES THEREOF

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US2868667A (en) * 1956-10-12 1959-01-13 Wall Colmonoy Corp Method and composition for forming a porous metallic coating
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US2936229A (en) * 1957-11-25 1960-05-10 Metallizing Engineering Co Inc Spray-weld alloys

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US3632319A (en) * 1969-07-11 1972-01-04 Gen Electric Diffusion bonding of superalloy members
US3769689A (en) * 1972-01-12 1973-11-06 Nasa Method of making pressure-tight seal for super alloy
US4077560A (en) * 1975-02-03 1978-03-07 Johnson & Johnson Dental solder
US4478638A (en) * 1982-05-28 1984-10-23 General Electric Company Homogenous alloy powder
WO1989003264A1 (en) * 1987-10-16 1989-04-20 Avco Corporation High temperature metal alloy mixtures for filling holes and repairing damages in superalloy bodies
US4910098A (en) * 1987-10-16 1990-03-20 Avco Corporation High temperature metal alloy mixtures for filling holes and repairing damages in superalloy bodies
US5040718A (en) * 1987-10-16 1991-08-20 Avco Corporation Method of repairing damages in superalloys
US5098470A (en) * 1988-07-14 1992-03-24 Rolls-Royce Plc Alloy mix of two alloy powders
US5149597A (en) * 1989-02-10 1992-09-22 Holko Kenneth H Wear resistant coating for metallic surfaces
US5403376A (en) * 1992-03-18 1995-04-04 Printron, Inc. Particle size distribution for controlling flow of metal powders melted to form electrical conductors

Also Published As

Publication number Publication date
FR1425774A (en) 1966-01-24
CH435938A (en) 1967-05-15
GB1108813A (en) 1968-04-03

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