CN106424714A - Composite WC alloy powder and preparation method and application thereof - Google Patents
Composite WC alloy powder and preparation method and application thereof Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 110
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 99
- 239000000956 alloy Substances 0.000 title claims abstract description 99
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 239000002131 composite material Substances 0.000 title abstract description 5
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims abstract description 10
- 238000005260 corrosion Methods 0.000 claims abstract description 10
- 238000007751 thermal spraying Methods 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 38
- 238000002844 melting Methods 0.000 claims description 36
- 230000008018 melting Effects 0.000 claims description 36
- RZJQYRCNDBMIAG-UHFFFAOYSA-N [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] Chemical class [Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Cu].[Zn].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Ag].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn].[Sn] RZJQYRCNDBMIAG-UHFFFAOYSA-N 0.000 claims description 26
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 229910052750 molybdenum Inorganic materials 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- 239000011230 binding agent Substances 0.000 claims description 17
- 229910052759 nickel Inorganic materials 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 229910001120 nichrome Inorganic materials 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 13
- 229910017052 cobalt Inorganic materials 0.000 claims description 13
- 239000010941 cobalt Substances 0.000 claims description 13
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 13
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 239000011651 chromium Substances 0.000 claims description 12
- 230000004927 fusion Effects 0.000 claims description 12
- 239000011733 molybdenum Substances 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 12
- 229910052721 tungsten Inorganic materials 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000010146 3D printing Methods 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 6
- WHDPTDWLEKQKKX-UHFFFAOYSA-N cobalt molybdenum Chemical compound [Co].[Co].[Mo] WHDPTDWLEKQKKX-UHFFFAOYSA-N 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 3
- 238000010286 high velocity air fuel Methods 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 238000007750 plasma spraying Methods 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 1
- 238000007908 dry granulation Methods 0.000 claims 1
- 230000003064 anti-oxidating effect Effects 0.000 abstract description 3
- 238000004663 powder metallurgy Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000007731 hot pressing Methods 0.000 abstract 1
- 239000000306 component Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 229910000906 Bronze Inorganic materials 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011257 shell material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011824 nuclear material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- B22F1/17—Metallic particles coated with metal
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- 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
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- 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
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0836—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with electric or magnetic field or induction
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0848—Melting process before atomisation
Abstract
The invention discloses composite WC alloy powder and a preparation method and application thereof. The alloy powder is NiMoCrFeCo-WC alloy powder with a WC core and a NiMoCrFeCo shell, and the NiMoCrFeCo -WC alloy powder is prepared from, by mass, 1.84-5.02% of C, 2.00-7.00% of Mo, 3.80-13.30% of Cr, 0.24-3.45% of Fe, 0.01-2.07% of Co, 29.56-76.90% of W, 0.02% or less of Mn, 0.3% or less of V, 0.027% or less of Si, 0.015% or less of Al, 0.006% or less of P, 0.006% or less of S and the balance Ni. The WC alloy powder is excellent corrosion-resistant, abrasion-resistant, anti-oxidation functional composite powder provided for thermal spraying, powder metallurgy, hot-pressing sintering and the like.
Description
Technical field
The invention belongs to metal powder material technology and advanced manufacture application are and in particular to NiMoCrFeCo-WC closes
Bronze powder material technology, is mainly used in thermal spraying, surface deposited metal, powder metallurgy and sinter molding etc..
Background technology
Diamondite powder becomes one of main approach of high-performance mechanical parts strengthening.By thermal spraying, burning
The techniques such as knot, surfacing combine diamondite in steel surface, form a floor height hardness, antioxidation, high temperature resistant, corrosion resistant
Surface, makes the steel-iron components of attachment tungsten carbide outer layer possess excellent surface property, obtains high service life.
Diamondite powder be by hard phase WC particle with bonding phase composition, cladded type WC alloy powder bonding mutually often by
Self-fluxing nature Ni based alloy, Fe based alloy, Co based alloy, NiCr alloy etc. form, the content of WC in 15～35% (wt) scope, and
Form commercialization multiple WC alloy powder product, such as Ni60-WC alloy powder molded surface has corrosion resistant wear resistant energy,
Fe55-WC alloy powder molded surface has abrasion resistance properties, 10Co-4Cr-WC alloy powder molded surface has high temperature resistant corruption
Erosion wearing character etc., they all keep the high rigidity characteristic of WC hard phase.
But, diamondite powder has molded surface fragility, the deficiency of the bonding corrosive power such as mutually resistance to HCl, HF
Shortcoming.
Content of the invention
In view of diamondite powder compacting surface brittleness, the deficiency of the bonding corrosive power such as mutually resistance to HCl, HF, the present invention
A kind of compound WC alloy powder is provided, there is the corrosion such as superpower resistance to HCl, HF and high wear resistance characteristic simultaneously.
For achieving the above object, the technical solution used in the present invention is：
A kind of compound WC alloy powder, this alloy powder is WC core, the NiMoCrFeCo-WC alloyed powder of NiMoCrFeCo shell
End；According to weight/mass percentage composition, NiMoCrFeCo-WC alloy powder consists of：1.84～4.90% C, 2.00～7.00%
Mo, 3.80～13.30% Cr, 0.24～3.45% Fe, 0.01～2.07% Co, 29.56～76.90% W ,≤
0.02% Mn ,≤0.3% V ,≤0.027% Si ,≤0.015% Al ,≤0.006% P ,≤0.006% S and
The Ni of surplus.
Described NiMoCrFeCo-WC alloy powder contains high-purity WC that mass fraction is 30～80%, and WC powder particle diameter is 1
～45 μm.
The NiMoCrFeCo shell of described NiMoCrFeCo-WC alloy powder is NiMoCrFeCo bonding phase alloy,
NiMoCrFeCo bond phase alloy quality composition by 15.0～28.0% Cr, 1.2～11.5% Fe, 10.5～22.0%
Mo, 0.05～6.9% Co, 0.0～0.02% C, 0.0～0.06% Mn, 0.0～0.09% Si, 0.0～
0.05% Al, 2.0～9.0% W, 0.0～1.0% V, 0.0～0.015% P, 0.0～0.015% S and surplus
Ni composition.
The alloy proportion 8.3～13.6g/cm of described NiMoCrFeCo-WC alloy powder3.
It is a further object to provide the preparation method of above-mentioned compound WC alloy powder, its technical scheme is：
The preparation method of above-mentioned compound WC alloy powder, including following methods：
Method a：Step is：
Step 1a, the quality composition of the phase alloy that bonds according to NiMoCrFeCo, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron
Alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, obtains NiMoCrFeCo bonding phase alloy and melts
Melt body；
Step 2a, indoor in vacuum, by the NiMoCrFeCo Binder Phase alloy molten of high-purity WC powder and the acquisition of step 1a
Body is atomized respectively, is filled with solidified atomized WC solid particle phase with the molten drop of the NiMoCrFeCo Binder Phase alloy melt of atomization
Divide mixing, cooled acquisition NiMoCrFeCo coats the alloy powder of WC；
Step 3a, the alloy powder that NiMoCrFeCo step 2a being obtained in vacuum drying oven coats WC is sintered, sintering
890～1100 DEG C of temperature, more cooled, screening acquisition cladding NiMoCrFeCo-WC alloy powder；
Method b：Step is：
Step 1b, according to NiMoCrFeCo bond phase alloy quality composition, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron,
Cobalt molybdenum alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, obtains NiMoCrFeCo bonding and is harmonious
Golden molten mass；
Step 2b, high-purity WC powder is added to the NiMoCrFeCo Binder Phase alloy melt of step 1b, stirs through electromagnetism
Mix uniformly；
The NiMoCrFeCo-WC molten alloy droplets of melting under vacuum, are carried out being blown mist by step 3b using argon
Change, more cooled, screening acquisition cladding NiMoCrFeCo-WC alloy powder；
Method c：Step is：
Step 1c, according to NiMoCrFeCo bond phase alloy quality composition, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron,
Cobalt molybdenum alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, NiMoCrFeCo is obtained through atomization and closes
Bronze end；
Step 2c, the NiMoCrFeCo alloy powder of step 1c is mixed with high-purity WC powder, makes through high temperature insostatic pressing (HIP)
NiMoCrFeCo-WC alloying metal bar；
Step 3c, under vacuum, is become using the NiMoCrFeCo-WC bar that inducing melting step 2c obtains
The NiMoCrFeCo-WC molten alloy droplets of melting are carried out injection atomization by argon by fused solution, more cooled, screening acquisition
Cladding NiMoCrFeCo-WC alloy powder；
Method d：Step is：
Step 1d, according to NiMoCrFeCo bond phase alloy quality composition, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron,
Cobalt molybdenum alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, NiMoCrFeCo is obtained through atomization and closes
Bronze end；
Step 2d, the NiMoCrFeCo alloy powder of step 1d is mixed with high-purity WC powder, adds dehydrated alcohol to carry out
High-energy ball milling mixes；
Step 3d, the mixed-powder of step 2d and polyvinyl alcohol, dehydrated alcohol are mixed into slurry, and carry out centrifugation spray
Mist drying and granulating；
Step 4d, is sintered to the alloy powder of the NiMoCrFeCo-WC that step 3d obtains in vacuum drying oven, sintering temperature
890～1100 DEG C, more cooled, screening acquisition cladding NiMoCrFeCo-WC alloy powder.
It is also another object of the present invention to provide the purposes of above-mentioned compound WC alloy powder, technical scheme is：
The purposes of above-mentioned compound WC alloy powder, this compound WC alloy powder is used for the following aspects：
(1) it is used for HVAF, powder used for plasma spraying；The adhesion of spray-on coating is more than 100Mpa, applies
The porosity of layer is less than 0.5%, is the working surface of anticorrosive and wear-resistant component of machine；
(2) it is used for hot pressed sintering or HIP sintering powder；Compound WC alloy powder forms metallurgical junction with steel matrix
Close, for the anticorrosive and anti abrasive one-piece parts molding of high-performance, or the internal layer of all kinds of part or outer formable layer；
(3) it is used for laser 3D printing alloy powder；Laser 3D printing NiMoCrFeCo-WC alloy powder, forms machinery
Part, or again through HIP sintering molding high-performance mechanical parts.
Described compound WC alloy powder is shaped to component of machine through thermal spraying or high temperature insostatic pressing (HIP) or laser 3D printing, closes
The hardness of bronze end molded surface is more than HV1100, and relative wear speed is less than 4.0 × 10-3g/cm2.h, simultaneously resistance to all kinds of acid,
Alkali, salt corrosion, high temperature oxidation and corrosion speed is less than 5.0 × 10-3g/cm2.h.
The invention has the beneficial effects as follows：The compound WC alloy powder that the present invention provides is a kind of nucleocapsid structure, nuclear material
2775 DEG C of WC hard alloy fusing point, 1350～1450 DEG C of shell material NiMoCrFeCo Binder Phase alloy melting point, so only need to
1350～1450 DEG C of component of machine or materials that just can manufacture high tungsten carbide content, without in 2775 DEG C of temperatures above
Manufacture.Secondly, WC is coated by Binder Phase so that WC alloy part molding variation and simplification, can not only manufacture single high WC
Content part, moreover it is possible to be combined with multiple trade mark steel, manufactures the composite material parts of outer layer WC or internal layer WC.
The offer excellent anticorrosion such as the WC alloy powder of the present invention is thermal spraying, powder metallurgy, wear-resistant, anti-oxidation function
Composite powder, is cobalt-based WC, Ni-based WC, the useful supplement of iron-based WC, NiCr-WC powder.For manufacturing industry high-performance mechanical zero
Part provides high-quality dusty material.
Specific embodiment
With reference to some specific embodiments, the present invention is further described.
Embodiment prepared by NiMoCrFeCo-WC alloy powder：
Embodiment 1：Require according to NiMoCrFeCo Binder Phase alloying component, nickel, molybdenum, cobalt, nichrome, nickel chromium iron are closed
Gold add vacuum melting furnace carry out melting, fusion temperature be 1380 DEG C, produce 23.2%Cr, 3.5%Fe, 12.5%Mo,
2.05%Co, 0.02%C, 0.06%Mn, 0.06%Si, 0.05%Al, 3.5%W, 0.25%V ,≤0.006%P ,≤
0.006%S and the NiMoCrFeCo Binder Phase alloy melt of surplus Ni composition；WC and NiMoCrFeCo presses 8:2 mass ratio
Carry out atomization mixing cladding, obtain NiMoCrFeCo-WC shell-core powder and sinter 15～40min in 900～920 DEG C of Temperature Vacuum,
Cooling screening reaches NiMoCrFeCo-WC alloy powder.
Embodiment 2：Require according to NiMoCrFeCo Binder Phase alloying component, nickel, molybdenum, cobalt, nichrome, nickel chromium iron are closed
The materials such as gold add vacuum melting furnace carry out melting, fusion temperature be 1420 DEG C, produce 21.6%Cr, 5.5%Fe, 15.4%
Mo, 2.5%Co, 0.01%C, 0.01%Mn ,≤0.06%Si ,≤0.05%Al, 2.95%W ,≤0.20%V ,≤0.006%
P ,≤0.006%S and the NiMoCrFeCo Binder Phase alloy melt of surplus Ni composition；WC and NiMoCrFeCo presses 35:65
Mass ratio carries out mix and blend, and argon injection atomization, cooling screening reach NiMoCrFeCo-WC alloy powder.
Embodiment 3：Require according to NiMoCrFeCo Binder Phase alloying component, nickel, molybdenum, cobalt, nichrome, nickel chromium iron are closed
Gold add vacuum melting furnace carry out melting, fusion temperature for 1450 DEG C produce 15.0%Cr, 11.5%Fe, 22.0%Mo,
0.05%Co, 0.02%Mn ,≤0.09%Si ,≤0.03%Al, 2.0%W ,≤1.0%V ,≤0.015%S and surplus Ni group
The NiMoCrFeCo Binder Phase alloy melt becoming, is NiMoCrFeCo alloy powder through argon injection atomization；WC with
NiMoCrFeCo powder presses 7:3 carry out vacuum ball milling mixing, subsequently carry out atmosphere HIP sintering and become NiMoCrFeCo-WC to close
Golden bar, 1250 ± 20 DEG C of sintering temperature, pressure is 160Mpa, and protective atmosphere is argon, and NiMoCrFeCo-WC alloy bar exists
Vacuum induction melting furnace carries out melting, with high-purity argon gas, the NiMoCrFeCo-WC alloy liquid droplet of melting is carried out with injection atomization, sense
Answer melting electric current 650A, argon speed 1100m/s, cooling screening reaches NiMoCrFeCo-WC alloy powder.
Embodiment 4：Require according to NiMoCrFeCo Binder Phase alloying component, nickel, molybdenum, cobalt, nichrome, nickel chromium iron are closed
Gold add vacuum melting furnace carry out melting, fusion temperature for 1350 DEG C produce 28.0%Cr, 1.2%Fe, 10.5%Mo, 6.9%
Co, the NiMoCrFeCo Binder Phase alloy melt of 0.01%C, 9.0%W ,≤0.015%P and surplus Ni composition；WC with
NiMoCrFeCo presses 55:45 mass ratio mixing, heating dehydrated alcohol carries out ball milling mixing, adds polyvinyl alcohol and mixed-powder
By 4:6 make and are mixed into slurry, and carry out centrifugal spray drying granulation, the alloy powder to the NiMoCrFeCo-WC pelletizing
It is sintered, 890～1100 DEG C of sintering temperature, more cooled, screening acquisition cladding NiMoCrFeCo-WC alloy powder.
Embodiment 5：With HVAF NiMoCrFeCo-WC alloy powder, formed in steel component surface spraying
NiMoCrFeCo-WC coating, becomes corrosion-resistant and anti abrasive component of machine after grinding and polishing.
NiMoCrFeCo-WC alloy powder quality consist of 4.64%Cr, 0.7%Fe, 2.5%Mo, 0.41%Co, 4.91%C,
0.01%Mn, 0.01%Si, 0.01%Al, 75.8%W, 0.05%V and 10.61%Ni, during spraying, aerial kerosene is fuel, oxygen
Gas is combustion-supporting gas, and spraying parameter is：Fuel pressure 0.79～1.4MPa, flow 21L/h, oxygen pressure 1.65MPa, flow
40m3/ h, powder feeding flow 10.27kg/h, powder feeding gas is nitrogen, spray distance 350mm.
Embodiment 6：With plasma spraying NiMoCrFeCo-WC alloy powder, formed in steel component surface spraying
NiMoCrFeCo-WC coating, becomes corrosion-resistant and anti abrasive component of machine after grinding and polishing.
NiMoCrFeCo-WC alloy powder quality consist of 7.56%Cr, 1.93%Fe, 5.39%Mo, 0.88%Co, 3.99%C,
0.02%Si, 0.02%Al, 62.05%W, 0.07%V and 16.87%Ni, spray voltage 60～64V, spraying current 540～
560A, argon 34L/min, hydrogen 8～10L/min, spray distance 250mm.
Embodiment 7：With high temperature insostatic pressing (HIP) stove, NiMoCrFeCo-WC alloy powder and steel material are sintered into one, are formed
NiMoCrFeCo-WC alloy internal layer (steel is outer layer) or the bimetallic parts of outer layer (steel is internal layer).NiMoCrFeCo-WC closes
Bronze end quality consist of 10.5%Cr, 8.05%Fe, 15.4%Mo, 0.04%Co, 1.84%C, 0.06%Si, 0.02%
Al, 29.56%W, 0.7%V and 33.75%Ni, need design corresponding bag during HIP sintering NiMoCrFeCo-WC alloy-layer
Set, pumps air in jacket, 950～1020 DEG C of HIP sintering temperature, pressure 180Mpa, atmosphere is argon.
Embodiment 8：Laser 3D printing NiMoCrFeCo-WC alloy powder, in high temperature insostatic pressing (HIP) stove after the three-dimensional parts of formation
Sintering, obtains NiMoCrFeCo-WC alloy alloy component in whole or in part.NiMoCrFeCo-WC alloy powder quality consists of
15.4%Cr, 0.66%Fe, 5.78%Mo, 3.8%Co, 2.76%C, 47.19%W and 24.2%Ni, laser 3D printing Yb-
Fibre laser instrument, power 2kw, operating current 40A, compression pressure 7000hpa, scanning speed 4.5m/s；Laser 3D is beaten
The NiMoCrFeCo-WC alloy preform of print carries out HIP sintering, 950～1020 DEG C of HIP sintering temperature, and pressure 160～
180Mpa, atmosphere is argon.
The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of compound WC alloy powder it is characterised in that：This alloy powder is WC core, NiMoCrFeCo shell
NiMoCrFeCo-WC alloy powder；According to weight/mass percentage composition, NiMoCrFeCo-WC alloy powder consists of：1.84～
4.90% C, 2.00～7.00% Mo, 3.80～13.30% Cr, 0.24～3.45% Fe, 0.01～2.07%
Co, 29.56～76.90% W ,≤0.02% Mn ,≤0.3% V ,≤0.027% Si ,≤0.015% Al ,≤
0.006% the P ,≤0.006% S and Ni of surplus.
2. compound WC alloy powder according to claim 1 it is characterised in that：Described NiMoCrFeCo-WC alloy powder
The high-purity WC being 30～80% containing mass fraction, WC powder particle diameter is 1～45 μm.
3. compound WC alloy powder according to claim 1 it is characterised in that：Described NiMoCrFeCo-WC alloy powder
NiMoCrFeCo shell be NiMoCrFeCo bonding phase alloy, NiMoCrFeCo bond phase alloy quality composition by 15.0～
28.0% Cr, 1.2～11.5% Fe, 10.5～22.0% Mo, 0.05～6.9% Co, 0.0～0.02% C,
0.0～0.06% Mn, 0.0～0.09% Si, 0.0～0.05% Al, 2.0～9.0% W, 0.0～1.0% V,
The Ni composition of 0.0～0.015% P, 0.0～0.015% S and surplus.
4. compound WC alloy powder according to claim 1 it is characterised in that：Described NiMoCrFeCo-WC alloy powder
Alloy proportion 8.3～13.6g/cm3.
5. the arbitrary described compound WC alloy powder of claim 1-4 preparation method it is characterised in that：By the following method
Any one prepares described compound WC alloy powder：
Method a：Step is：
Step 1a, the quality composition of the phase alloy that bonds according to NiMoCrFeCo, by nickel, molybdenum, cobalt, nichrome, nichrome
Add vacuum melting furnace to carry out melting, fusion temperature is 1350～1450 DEG C, obtain NiMoCrFeCo Binder Phase alloy melt；
Step 2a, indoor in vacuum, the NiMoCrFeCo Binder Phase alloy melt that high-purity WC powder and step 1a are obtained divides
It is not atomized, mutually fully mixed with solidified atomized WC solid particle with the molten drop of the NiMoCrFeCo Binder Phase alloy melt of atomization
Close, cooled acquisition NiMoCrFeCo coats the alloy powder of WC；
Step 3a, the alloy powder that NiMoCrFeCo step 2a being obtained in vacuum drying oven coats WC is sintered, sintering temperature
890～1100 DEG C, more cooled, screening acquisition cladding NiMoCrFeCo-WC alloy powder；
Method b：Step is：
Step 1b, the quality composition of the phase alloy that bonds according to NiMoCrFeCo, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron, cobalt molybdenum
Alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, obtains NiMoCrFeCo bonding phase alloy and melts
Melt body；
Step 2b, high-purity WC powder is added to the NiMoCrFeCo Binder Phase alloy melt of step 1b, equal through electromagnetic agitation
Even；
The NiMoCrFeCo-WC molten alloy droplets of melting under vacuum, are carried out injection atomization using argon by step 3b, then
Cooled, screening obtains cladding NiMoCrFeCo-WC alloy powder；
Method c：Step is：
Step 1c, the quality composition of the phase alloy that bonds according to NiMoCrFeCo, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron, cobalt molybdenum
Alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, NiMoCrFeCo alloyed powder is obtained through atomization
End；
Step 2c, the NiMoCrFeCo alloy powder of step 1c is mixed with high-purity WC powder, makes through high temperature insostatic pressing (HIP)
NiMoCrFeCo-WC alloying metal bar；
Step 3c, under vacuum, becomes melting using the NiMoCrFeCo-WC bar that inducing melting step 2c obtains
The NiMoCrFeCo-WC molten alloy droplets of melting are carried out injection atomization by argon by liquid, more cooled, screening acquisition cladding
NiMoCrFeCo-WC alloy powder；
Method d：Step is：
Step 1d, the quality composition of the phase alloy that bonds according to NiMoCrFeCo, by nickel, molybdenum, cobalt, nichrome, nickel chromium iron, cobalt molybdenum
Alloy adds vacuum melting furnace to carry out melting, and fusion temperature is 1350～1450 DEG C, NiMoCrFeCo alloyed powder is obtained through atomization
End；
Step 2d, the NiMoCrFeCo alloy powder of step 1d is mixed with high-purity WC powder, adds dehydrated alcohol to carry out ball milling
Mixing；
Step 3d, the mixed-powder of step 2d and polyvinyl alcohol, dehydrated alcohol is mixed into slurry, and carries out centrifugal spray dryer
Dry granulation；
Step 4d, is sintered to the alloy powder of the NiMoCrFeCo-WC that step 3d obtains in vacuum drying oven, sintering temperature 890
～1100 DEG C, more cooled, screening acquisition cladding NiMoCrFeCo-WC alloy powder.
6. the arbitrary described compound WC alloy powder of claim 1-4 purposes it is characterised in that：This compound WC alloy powder is used
In the following aspects：
(1) it is used for HVAF, powder used for plasma spraying；
(2) it is used for HIP sintering, hot pressed sintering powder；
(3) it is used for laser 3D printing alloy powder.
7. purposes according to claim 6 it is characterised in that：In described purposes (1), the adhesion of spray-on coating is more than
100Mpa, the porosity of coating is less than 0.5%, is the working surface of anticorrosive and wear-resistant component of machine.
8. purposes according to claim 6 it is characterised in that：In described purposes (2), compound WC alloy powder and steel matrix
Form metallurgical binding, for the anticorrosive and anti abrasive one-piece parts molding of high-performance, or the internal layer of all kinds of part or outer layer become
Type.
9. purposes according to claim 6 it is characterised in that：In described purposes (3), laser 3D printing NiMoCrFeCo-
WC alloy powder, forms machine components, or again through HIP sintering molding high-performance mechanical parts.
10. purposes according to claim 6 it is characterised in that：Described compound WC alloy powder is quiet through thermal spraying or heat etc.
Pressure or laser 3D printing are shaped to component of machine, and the hardness of alloy powder molded surface is more than HV1100, relative wear speed
Less than 4.0 × 10-3g/cm2.h, simultaneously resistance to all kinds of acid, alkali, salt corrosion, high temperature oxidation and corrosion speed is less than 5.0 × 10-3g/
cm2.h.
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