CN107177758A - A kind of metal-based self-lubricating composite material of fire-resistant oxidation resistant and preparation method thereof - Google Patents
A kind of metal-based self-lubricating composite material of fire-resistant oxidation resistant and preparation method thereof Download PDFInfo
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- CN107177758A CN107177758A CN201710382168.7A CN201710382168A CN107177758A CN 107177758 A CN107177758 A CN 107177758A CN 201710382168 A CN201710382168 A CN 201710382168A CN 107177758 A CN107177758 A CN 107177758A
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- lubricating
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- enamel
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- 239000002131 composite material Substances 0.000 title claims abstract description 95
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 66
- 230000003647 oxidation Effects 0.000 title claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 title claims abstract description 42
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 37
- 238000005245 sintering Methods 0.000 claims abstract description 32
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 25
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 25
- 235000006708 antioxidants Nutrition 0.000 claims abstract description 25
- 230000005496 eutectics Effects 0.000 claims abstract description 12
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052593 corundum Inorganic materials 0.000 claims abstract 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 238000005461 lubrication Methods 0.000 claims description 14
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims description 6
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 6
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical group [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005054 agglomeration Methods 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 239000000037 vitreous enamel Substances 0.000 claims description 4
- 230000004584 weight gain Effects 0.000 claims description 4
- 235000019786 weight gain Nutrition 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 239000004567 concrete Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- 229910000428 cobalt oxide Inorganic materials 0.000 claims 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 abstract description 15
- 229910001632 barium fluoride Inorganic materials 0.000 abstract description 15
- 238000013461 design Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 abstract description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 15
- 229910001573 adamantine Inorganic materials 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical group O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000003026 anti-oxygenic effect Effects 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- 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
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1051—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by electric discharge
-
- 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
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to high-temperature corrosion resistance and self-lubricating field, and in particular to a kind of metal-based self-lubricating composite material of fire-resistant oxidation resistant and preparation method thereof.The composite is using high alumina nickel-base alloy as matrix, calcirm-fluoride/barium fluoride eutectic and enamel are self-lubricating phase, using alundum (Al2O3) as hard phase, collectively constituted, be prepared from through discharge plasma sintering as antioxidant using the rare earth oxide that ceria, yttria etc. are arbitrarily matched.Wherein, according to percentage by weight, high alumina nickel-base alloy is 65%~82%, and self-lubricating phase is 8%~15% (wherein calcirm-fluoride/barium fluoride eutectic≤10%, enamel is 3~10%), and alundum (Al2O3) is 6~15%, and antioxidant is 2~10%.The addition that the present invention passes through the high alumina design of nickel-base alloy, antioxidant and new type high temperature self-lubricating phase enamel, the composite has been had high temperature resistant concurrently, anti-oxidant and excellent self-lubricating combination property, the production available for parts under anti-oxidant, high temperature resistant, self-lubricating environment.
Description
Technical field：
The present invention relates to high-temperature corrosion resistance and self-lubricating field, and in particular to a kind of Metal Substrate of fire-resistant oxidation resistant is moistened certainly
Sliding composite and preparation method thereof, the composite can be used for the life of parts under anti-oxidant, high temperature resistant, self-lubricating environment
Production.
Background technology：
Fretting wear and lubrication state under the harshness working condition such as high temperature, high speed and top load are to determine aeroplane engine
One of the thrust-weight ratio of the space mechanism systems such as machine, space vehicles instrument, spacecraft and the key factor of service life.In high temperature bar
The many equipment worked under part require that Tribological Systems still have good lubricating status under thermal extremes with parts,
Such as：The operating temperature of adiabatic Diesel engine is up to 760 DEG C, and the lubrication of its cylinder sleeve and piston ring and valve lever is particularly important.
Current cylinder sleeve and the lubricating method of piston ring sliding contact are the bottoms (bottom temperature is relatively low) that piston ring is placed on to piston, are made
With conventional low-temperature solid lubrication phase MoS2With PTEE to realize piston ring and piston in the target of self-lubricating solid, but the structure
Annular space between top reduces the whole efficiency 5~10% of engine, it is therefore desirable to moistened using the higher solid of heat resistance
Sliding material.And in turbine aircraft engines, the operating temperature of bearing and lubrication phase also reaches 650 DEG C, partial joint bearing
Service temperature be even more reach 900 DEG C even more than, slide unit sealing and the lubrication in thrust disc must mutually be fulfilled for high temperature resistant,
The need for high-strength.In addition, under high temperature and high speed condition of work, easily there is fretting wear and fracture in engine axle bush, using resistance to
High temperature solid self-lubricants composite can reduce the fretting wear of the bushing or oscillating bearing under hot conditions.
In order to meet high temperature resistant, high-mechanic and the impact flexibility requirement of solid self-lubricating composite material, generally using resistance to
Thermalloy as composite matrix.While fretting wear high temperature oxygen occurs for the heat-resisting alloys such as Ni-based, cobalt-based, iron-based
Change, a kind of hard and smooth compacting oxide skin(coating), also known as adamantine layer are generated in wear surface.Adamantine layer have glass outward appearance and
Polycrystalline feature, can effectively reduce resistance of taxing (reduction coefficient of friction), protect matrix, prevent frictionally damage.The shape of adamantine layer
The oxidation, the formation of oxide abrasive grain, abrasive particle for including alloy into process are rolled and polycrystallization, glazing rubbing surface.Currently,
Self-lubricating phase in high temperature self-lubricating composite material generally uses fluoride (such as：The eutectic thing of calcirm-fluoride and barium fluoride), nitridation
Boron etc..The self-lubricating property of high temperature self-lubricating composite material (especially service temperature high temperature 800 DEG C when) is very dependent on from moistening
The mutually excellent high temperature oxidation resistance of alloy in the high-temperature stable and composite of sliding phase.In process of friction and wear, composite
The self-lubricating film layer that surface is formed must have effect of self-lubricating and resistance to high temperature oxidation concurrently simultaneously.And under actual condition, by common
The film layer that collectively constitutes of oxide adamantine layer and fluoride, it is impossible to have the dual work(of self-lubricating and resistance to high temperature oxidation concurrently completely
Energy.The formation cycle of adamantine layer changes with the change of alloying component and friction temperature.Before adamantine layer formation, alloy
Coefficient of friction it is very high, wear extent is big.Once after adamantine layer formation, due to Korrosionsmedium (such as：Oxygen, sulfide) in fluorine
Diffusion velocity in compound, adamantine layer is fast, and with the lasting progress of high-temperature oxydation, oxide abrasive grain increases, and adamantine layer constantly increases
Thickness is until rupture.Now, the frictionally damage of composite will become serious once again.
According to China's national defense construction and industrial development to the service demand of high temperature moving component, a kind of resistance to height of development is needed badly
The oxidation resistant novel metal based self lubricated composite material of temperature, can be in 800 DEG C of temperatures above military services, the motion portion of high-mechanic with preparation
Part, such as：Axle, bushing and bearing etc..
The content of the invention
It is an object of the invention to provide a kind of metal-based self-lubricating composite material of fire-resistant oxidation resistant and preparation method thereof,
The problems such as solving that the dual-use function of self-lubricating and resistance to high temperature oxidation can not be had concurrently completely in the prior art.
The technical scheme is that：
A kind of metal-based self-lubricating composite material of fire-resistant oxidation resistant, weight percentage, the composite group
Into as follows：
Metal Substrate body phase 65~82%；
Self-lubricating phase 8~15%；
Hard phase 6~15%；
Antioxidant 2~10%.
The Metal Substrate body phase is high alumina nickel-base alloy, prepares the starting powder granularity of composite Metal Substrate body phase
Less than 20 μm；The self-lubricating phase is fluoride and enamel, glass or devitrified glass, and granularity is less than 10 μm, wherein being fluorinated
Thing is the eutectic thing of calcirm-fluoride and barium fluoride, and content is no more than 10wt%, and enamel, glass or devitrified glass are silicon dioxide body
System, content is 3~10wt%；Hard phase is alundum (Al2O3), and granularity is less than 10 μm；Antioxidant is ceria, three oxygen
Change any cooperation of two yttriums, granularity is less than 100nm.
In described high alumina nickel-base alloy, aluminium content is 10~18wt%, and chromium content is 12~30wt%, and surplus is nickel,
Its phase structure is with γ-Ni and γ '-Ni3Based on Al.
Weight percentage, the enamel concrete composition of one of the high-temperature self-lubrication phase is as follows：
Silica 40~65%；
Diboron trioxide 3~15%；
Alundum (Al2O3) 3~15%；
Sodium oxide molybdena and/or potassium oxide 11~25%；
Other≤15%, it is other to refer to zinc oxide, calcium oxide, zirconium dioxide, magnesia, titanium dioxide, nickel oxide, oxidation
The one or more of cobalt.
The preparation method of one of high-temperature self-lubrication phase enamel is as follows：Matched according to enamel composition by various oxide balls
Mill mixing, 300~400 revs/min of rotating speed, 20~30 hours time；Melting is heated through 1200~1650 DEG C of temperature ranges, water quenching is obtained
To frit for porcelain enamel；Planetary type ball-milling 80~120 hours, is made the enamel micro mist that particle diameter is less than 10 μm.
The preparation method of the metal-based self-lubricating composite material of described fire-resistant oxidation resistant, this method includes following step
Suddenly：
(1) powder is mixed：According to the composition proportion of composite by Metal Substrate body phase powder, self-lubricating phase powder, hard
Phase powder and antioxidant are mixed by planetary type ball-milling, 300~400 revs/min of rotating speed, and Ball-milling Time 10~15 hours is obtained
To well mixed composite powder；
(2) discharge plasma sintering：Composite powder obtained by step (1) is combined after vacuum discharge plasma agglomeration
Material.
The technological parameter of the vacuum discharge plasma agglomeration is as follows：
Vacuum ﹤ 1 × 10-2atm；
Sintering temperature：1050~1250 DEG C；
Programming rate：50~100 DEG C/min；
Sintering pressure：20~35MPa；
Natural cooling after 10~20min of soaking time, insulation.
The performance indications of the composite are as follows：
Consistency is more than 98%, and compression strength is more than 900MPa；In 700~900 DEG C of temperature range frictions, averagely rub
It is 0.1~0.3 to wipe coefficient, and wear extent is less than 1 × 10-5mm3/(Nm)；In 700~900 DEG C of temperature ranges, the composite it is anti-
Oxidation level is completely anti-oxidant, and after oxidation 100h, its oxidation weight gain is less than 0.5mg/cm2。
The present invention design philosophy be：
The present invention by design the composition of Metal Substrate body phase in composite, design add suitable high-temperature self-lubrication phase and
Metal-based self-lubricating composite material prepared by antioxidant, has high-temperature self-lubrication and very excellent high temperature oxidation resistance concurrently
Energy.In preparation process, using discharge plasma sintering, common hot pressed sintering is overcome microdefect, nanocrystal easily occur
The shortcomings of (particle) grows up, so as to realize the optimization of mechanical property；Composition regulation and control and and antioxygen by Metal Substrate body phase
The cooperation of agent, increases substantially the high temperature oxidation resistance of composite；(warded off by novel inorganic amorphous state self-lubricating phase
Porcelain, glass or devitrified glass) design and addition, the formation of rapid induction composite material surface adamantine layer, and improve enamel
The consistency of layer and its interface binding power with metallic matrix, it is ensured that composite high-temperature self-lubrication and oxidation resistant dual work(
Effect.Finally, it is comprehensive that the metal-based self-lubricating composite material of preparation has high temperature resistant, anti-oxidant and self-lubricating etc. is excellent
Energy.
Advantages of the present invention and beneficial effect are：
(1) present invention, using rare earth oxide as antioxidant, is made using high alumina nickel-base alloy as alloy base material
Composite possess very excellent high temperature oxidation resistance, improve the aluminium content in nickel-base alloy, it is ensured that (outstanding under high temperature
It is more than 800 DEG C) composite material surface can be formed it is slow-growing, with the oxidation film layer Al of alloy substrate good adhesion2O3。
And current high temperatures typical self-lubricating composite is (such as：The PM series of NASA reports), high-temperature oxydation product is Cr2O3.Chromium oxide
The speed of growth be far above aluminum oxide, and, the subsurface enamel by chromium oxide set up poor with the interface adhesiveness of nickel-base alloy
Layer antioxygenic property is not enough.
(2) a kind of new high-temperature self-lubrication phase (enamel), accelerometer cover-coat enamel are added in design to the present invention in the composite
The formation of matter layer, and improve the consistency of adamantine layer so that the adamantine layer has effect of self-lubricating and resistance to high temperature oxidation concurrently.Currently
High temperatures typical self-lubricating composite relies on rolling repeatedly to oxidation products (chrome green), makes its nanosizing, non-
Crystallization and obtain subsurface enamel layer.The process is slow, and the adamantine layer formed is not fine and close, and resistance to high temperature oxidation effect is limited.And answer
Enamel particle in condensation material, it is responsible its own amorphous network structure and its compatibility between many oxide, plus
Fast oxidation product it is decrystallized, promote the quick formation of surface compact adamantine layer, the high temperature friction damage of reduction composite.
(3) discharge plasma sintering of the present invention, which can be sintered, prepares high-compactness nano composite material, using the sintering side
Fire-resistant oxidation resistant metal-based self-lubricating composite material prepared by method, is ensureing the same of high-temperature self-lubrication and antioxygenic property
When, the optimization of mechanical property can be achieved.
(4) fire-resistant oxidation resistant metal-based self-lubricating composite material of the invention can be processed into variously-shaped high temperature transmission
Part, such as：Bearing, bushing, axle etc., realize the high temperature resistant of part, anti-oxidant and self-lubricating function, improve part service life.
Brief description of the drawings
Fig. 1 is the fire-resistant oxidation resistant metal-based self-lubricating composite material microstructure ESEM of discharge plasma sintering
Photo；
Fig. 2 is the self-lubricating composite microstructure stereoscan photograph of conventional vacuum hot pressed sintering；
Fig. 3 is the friction coefficient curve of fire-resistant oxidation resistant metal-based self-lubricating composite material；Wherein, abscissa Time is
Time (min), ordinate Friction coefficient are coefficient of friction.
Fig. 4 is the polishing scratch electromicroscopic photograph after the 800 DEG C of frictions of fire-resistant oxidation resistant metal-based self-lubricating composite material；
Fig. 5 is the polishing scratch electromicroscopic photograph after 900 DEG C of frictions of composite of nickel-base alloy too high levels.
Embodiment
The following examples are that the present invention is described in further detail, it should be understood that these modes are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1：
In the present embodiment, with nickel-base alloy Ni-27Cr-11Al-0.5Y (wt.%) for alloy substrate, ceria is anti-
Oxidant, together with calcirm-fluoride/barium fluoride eutectic, enamel and alundum (Al2O3), prepares the composite, and its specific prepares is joined
Number is as follows：
(1) enamel micro mist：The formula of melting vitreous enamel is, silica 60wt%, diboron trioxide 5wt%, three oxidations
Two aluminium 10wt%, sodium oxide molybdena 9wt%, potassium oxide 7wt%, zinc oxide 9wt%.Matched according to enamel composition, by various oxides
Ball milling mixing, 320 revs/min of rotating speed, 24 hours time；Through 1500 DEG C of heating meltings, water quenching obtains frit for porcelain enamel；Planetary type ball-milling
100 hours, the enamel micro mist that particle diameter is less than 10 μm is made.
(2) powder is mixed：Composite is matched according to following component, nickel-base alloy 72wt%, calcirm-fluoride/barium fluoride eutectic
5wt% (percentage by weight of calcirm-fluoride and barium fluoride is respectively 32% and 68%), enamel 5wt%, alundum (Al2O3) 14wt%,
Ceria 4wt%, through planetary ball mill ball milling mixing, 320 revs/min of rotating speed, obtains composite powder at 12 hours time.
(3) discharge plasma sintering：By the composite powder of ball milling mixing, graphite jig is put into, is compacted, through plasma discharging
System is sintered：
Vacuum：1×10-3atm；
Sintering temperature：1200℃；
Programming rate：60 DEG C/min, the natural cooling after final sintering temperature insulation 15min；
Sintering pressure：25MPa.
The consistency of composite is 99.1% after sintering, and microstructure stereoscan photograph is as shown in Figure 1：Composite
Network-like microstructure, each component Dispersed precipitate does not find macroscopic view even micron level in ESEM field range
Defect.
Comparative example 1
Difference from Example 1 is：The sintering processing of composite is conventional vacuum hot pressed sintering.
Vacuum：1×10-3atm；
Sintering temperature：1200℃；
Programming rate：60 DEG C/min, the natural cooling after final sintering temperature insulation 15min；
Sintering pressure：25MPa.
The consistency of composite is 94.1% after sintering, and consistency is less than discharge plasma sintering material.Microstructure
Stereoscan photograph is as shown in Figure 2：Composite generally also still network-like microstructure, each component Dispersed precipitate.But,
Find there is more sintering hole and not sufficiently sintered region in ESEM field range.
Embodiment 2
Difference from Example 1 is：The composition of fire-resistant oxidation resistant metal-based self-lubricating composite material is, Ni-based to close
Golden 82wt%, calcirm-fluoride/barium fluoride eutectic 4wt% (percentage by weight of calcirm-fluoride and barium fluoride is respectively 32% and 68%),
Enamel 5wt%, alundum (Al2O3) 6wt%, ceria 3wt%.
After 900 DEG C of high-temperature oxydation 100h, the oxidation product of the composite is alundum (Al2O3), and oxidation weight gain is only
0.35mg/cm2, with very excellent high temperature oxidation resistance.And (U.S. NASA is reported contrast test sample NiCr alloys
Selected alloy-based body phase in high temperature self-lubricating composite material), its oxidation product is chrome green, oxidation weight gain after oxidation
Reach 2.61mg/cm2, oxidation rate is higher than the fire-resistant oxidation resistant metal-based self-lubricating composite material of the invention 7 times.
Embodiment 3
Difference from Example 1 is：Prepare the nickel-base alloy composition selected by the fire-resistant oxidation resistant composite
For Ni-8Co-16Cr-12Al-3.5Mo-4Ti (wt.%).
800 DEG C of friction coefficient curves of the composite are as shown in figure 3, average friction coefficient is only 0.18, and friction curve
Steadily, wear extent is 1.9 × 10-6mm3/(Nm).And document (Surf.Coat.Technol.203 (2009) 3058) report
NiCr-CaF2/BaF2-Cr3C2System high-temperature self-lubricating composite, the coefficient of friction at 800 DEG C is 0.40, and wear extent is
4.8×10-6mm3/(Nm).Comparatively speaking, the fire-resistant oxidation resistant metal-based self-lubricating composite material that the present invention is provided shows
Go out very excellent high temperature resistant, anti-oxidant, self-lubricating combination property.
Comparative example 2
Difference from Example 3 is：Nickel-base alloy composition is Ni-8Co-16Cr-9Al-3.5Mo-4Ti (wt.%),
Al content is reduced to 9wt%.
The composite prepared through discharge plasma sintering, coefficient of friction is 0.46 at 800 DEG C, wear extent is 4.7 ×
10-6mm3/ (Nm), coefficient of friction and wear extent are increased substantially than embodiment 3.
Embodiment 4
Difference from Example 1 is：It is two to prepare the enamel composition selected by the fire-resistant oxidation resistant composite
Silica 40wt%, diboron trioxide 10wt%, alundum (Al2O3) 15wt%, sodium oxide molybdena 9wt%, potassium oxide 12wt%, dioxy
Change zirconium 14wt%, 1500 DEG C of smelting temperature.The fire-resistant oxidation resistant metal-based self-lubricating prepared by plasma discharging system is combined
Coefficient of friction is 0.21 at 800 DEG C of material, and wear extent is 2.4 × 10-6mm3/ (Nm), with excellent high temperature resistant, it is anti-oxidant, from
Lubricate combination property.
Comparative example 3
Difference from Example 4 is：Enamel composition is silica 35wt%, diboron trioxide 10wt%, three oxygen
Change two aluminium 15wt%, sodium oxide molybdena 14wt%, potassium oxide 16wt%, zirconium dioxide 10wt%.
The composite prepared through discharge plasma sintering, coefficient of friction is 0.37 at 800 DEG C, wear extent is 7.1 ×
10-6mm3/ (Nm), coefficient of friction and wear extent are increased substantially than embodiment 4.
Comparative example 4
Difference from Example 4 is：Enamel composition is silica 70wt%, diboron trioxide 5wt%, three oxidations
Two aluminium 15wt%, sodium oxide molybdena 4wt%, potassium oxide 4wt%, strontium oxide strontia 2wt%.
The composite prepared through discharge plasma sintering, coefficient of friction is 0.51 at 800 DEG C, wear extent is 4.3 ×
10-6mm3/ (Nm), coefficient of friction and wear extent are increased substantially than embodiment 4.
Embodiment 5
Difference from Example 1 is：The composition of fire-resistant oxidation resistant metal-based self-lubricating composite material is, Ni-based to close
Golden 66wt%, calcirm-fluoride/barium fluoride eutectic 9wt% (percentage by weight of calcirm-fluoride and barium fluoride is respectively 32% and 68%),
Enamel 9wt%, alundum (Al2O3) 14wt%, ceria 2wt%.
Fire-resistant oxidation resistant metal-based self-lubricating composite material prepared by plasma discharging system, through being rubbed at 800 DEG C
Afterwards, friction surface is as shown in Figure 4.Subsurface enamel layer is very thin, still the initial surface of visible alloy composite materials, and wear extent is
1.4×10-6mm3/ (Nm), the compression strength of the composite is 1350MPa.
Embodiment 6
Difference from Example 3 is：The composition of fire-resistant oxidation resistant metal-based self-lubricating composite material is, Ni-based to close
Golden 70wt%, calcirm-fluoride/barium fluoride eutectic 3wt% (percentage by weight of calcirm-fluoride and barium fluoride is respectively 32% and 68%),
Enamel 6wt%, alundum (Al2O3) 11wt%, yttria 10wt%.
The fire-resistant oxidation resistant metal-based self-lubricating composite material prepared by plasma discharging system, after being rubbed through 900 DEG C,
Coefficient of friction is 0.20, and wear extent is 1.6 × 10-6mm3/(Nm).The compression strength of the composite is 1180MPa, with excellent
It is different high temperature resistant, anti-oxidant with self-lubricating combination property.
Comparative example 5
Difference from Example 6 is：The composition of fire-resistant oxidation resistant metal-based self-lubricating composite material is, Ni-based to close
Golden 83wt%, calcirm-fluoride/barium fluoride eutectic 3wt%, enamel 5wt%, alundum (Al2O3) 6wt%, yttria 3wt%.
The composite prepared through discharge plasma sintering, after rubbing at 900 DEG C, friction surface is as shown in Figure 5.Surface
Adamantine layer is very thick, and friction surface has obvious grinding.Coefficient of friction is 0.45, and wear extent is 4.0 × 10-6mm3/ (Nm), friction
Coefficient and wear extent are increased substantially than embodiment 6.
Comparative example 6
Difference from Example 6 is：The composition of fire-resistant oxidation resistant metal-based self-lubricating composite material is, Ni-based to close
Golden 64wt%, calcirm-fluoride/barium fluoride eutectic 7wt%, enamel 8wt%, alundum (Al2O3) 16wt%, yttria 5wt%.
The composite prepared through discharge plasma sintering, coefficient of friction is 0.19 at 900 DEG C, wear extent is 1.7 ×
10-6mm3/ (Nm), coefficient of friction and wear extent are suitable with embodiment 6.But, the compression strength of the composite is only
878MPa, declines 26%.
Embodiment and comparative example result show that the present invention passes through the high alumina design of nickel-base alloy and adding for antioxidant
Enter, increase substantially high temperature oxidation resistance；Pass through the addition rapid induction subsurface enamel of new high-temperature self-lubrication phase enamel
The formation of layer, and have effect of resistance to high temperature oxidation concurrently；Composite consistency, suppression can be improved by special sintering preparation technology
Make nanocrystalline (particle) to grow up, it is ensured that mechanical behavior under high temperature, the composite of preparation has high temperature resistant concurrently, anti-oxidant and from moistening
Sliding combination property.
The detailed composition and preparation method of applicant's statement, the although there has been shown and described that present invention, to the skill of this area
For art personnel, the invention is not limited in rely on above-mentioned detailed composition and preparation method to implement.To any of the present invention
Addition of improvement, products material replacement and auxiliary element etc., within the scope of protection scope of the present invention and disclosure.
Claims (8)
1. a kind of metal-based self-lubricating composite material of fire-resistant oxidation resistant, it is characterised in that：Weight percentage, this is answered
Condensation material composition is as follows：
Metal Substrate body phase 65~82%；
Self-lubricating phase 8~15%；
Hard phase 6~15%；
Antioxidant 2~10%.
2. according to the metal-based self-lubricating composite material of the fire-resistant oxidation resistant described in claim 1, it is characterised in that：The gold
Category matrix phase is high alumina nickel-base alloy, and the starting powder granularity for preparing composite Metal Substrate body phase is less than 20 μm；It is described
Self-lubricating phase is fluoride and enamel, glass or devitrified glass, and granularity is less than 10 μm, and wherein fluoride is calcirm-fluoride and fluorine
Change barium eutectic thing, content be no more than 10wt%, enamel, glass or devitrified glass be silica system, content be 3~
10wt%；Hard phase is alundum (Al2O3), and granularity is less than 10 μm；Antioxidant be ceria, yttria it is any
Coordinate, granularity is less than 100nm.
3. according to the metal-based self-lubricating composite material of the fire-resistant oxidation resistant described in claim 2, it is characterised in that：Described
In high alumina nickel-base alloy, aluminium content is 10~18wt%, and chromium content is 12~30wt%, and surplus is nickel, and its phase structure is with γ-Ni
With γ '-Ni3Based on Al.
4. according to the metal-based self-lubricating composite material of the fire-resistant oxidation resistant described in claim 2, it is characterised in that：By weight
Percentage composition meter, the enamel concrete composition of one of the high-temperature self-lubrication phase is as follows：
Silica 40~65%；
Diboron trioxide 3~15%；
Alundum (Al2O3) 3~15%；
Sodium oxide molybdena and/or potassium oxide 11~25%；
It is other≤15%, it is other refer to zinc oxide, calcium oxide, zirconium dioxide, magnesia, titanium dioxide, nickel oxide, cobalt oxide it
It is one or more kinds of.
5. according to the metal-based self-lubricating composite material of the fire-resistant oxidation resistant described in claim 4, it is characterised in that the height
The preparation method of one of warm self-lubricating phase enamel is as follows：Matched according to enamel composition by various oxide ball milling mixings, rotating speed 300
~400 revs/min, 20~30 hours time；Melting is heated through 1200~1650 DEG C of temperature ranges, water quenching obtains frit for porcelain enamel；OK
Planetary ball milling 80~120 hours, is made the enamel micro mist that particle diameter is less than 10 μm.
6. the preparation method of the metal-based self-lubricating composite material according to any described fire-resistant oxidation resistant of Claims 1 to 5,
Characterized in that, this method comprises the following steps：
(1) powder is mixed：According to the composition proportion of composite by Metal Substrate body phase powder, self-lubricating phase powder, hard phase powder
End and antioxidant are mixed by planetary type ball-milling, and 300~400 revs/min of rotating speed, Ball-milling Time 10~15 hours is mixed
Close uniform composite powder；
(2) discharge plasma sintering：Composite powder obtained by step (1) is obtained into composite wood after vacuum discharge plasma agglomeration
Material.
7. the preparation method of the metal-based self-lubricating composite material according to the fire-resistant oxidation resistant described in claim 6, its feature
It is, the technological parameter of the vacuum discharge plasma agglomeration is as follows：
Vacuum ﹤ 1 × 10-2atm；
Sintering temperature：1050~1250 DEG C；
Programming rate：50~100 DEG C/min；
Sintering pressure：20~35MPa；
Natural cooling after 10~20min of soaking time, insulation.
8. the preparation method of the metal-based self-lubricating composite material according to the fire-resistant oxidation resistant described in claim 6, its feature
It is, the performance indications of the composite are as follows：
Consistency is more than 98%, and compression strength is more than 900MPa；In 700~900 DEG C of temperature range frictions, average friction system
Number is 0.1~0.3, and wear extent is less than 1 × 10-5mm3/(Nm)；In 700~900 DEG C of temperature ranges, the composite it is anti-oxidant
Grade is completely anti-oxidant, and after oxidation 100h, its oxidation weight gain is less than 0.5mg/cm2。
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| CN108409138A (en) * | 2018-04-11 | 2018-08-17 | 东北大学 | The enamel coating and its preparation process of a kind of resistance to sulfuric acid, salt acid dew piont corrosion |
| CN109434125A (en) * | 2018-12-11 | 2019-03-08 | 安阳工学院 | A kind of NiTiAl based self lubricated composite material and preparation method thereof with self regulating and control function |
| CN111440968A (en) * | 2020-05-15 | 2020-07-24 | 中国科学院兰州化学物理研究所 | Nickel-based wide-temperature-range high-strength self-lubricating composite material and preparation method thereof |
| CN111455204A (en) * | 2020-04-29 | 2020-07-28 | 哈尔滨工业大学 | Method for preparing NiAl intermetallic compound |
| CN113802029A (en) * | 2021-09-10 | 2021-12-17 | 西北工业大学 | NiTi-based self-lubricating composite material and preparation method thereof |
| CN113912298A (en) * | 2021-11-09 | 2022-01-11 | 东北大学 | Corrosion-resistant self-lubricating enamel coating capable of precipitating fluoride nanocrystalline in situ and preparation method thereof |
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| CN111440968B (en) * | 2020-05-15 | 2022-03-29 | 中国科学院兰州化学物理研究所 | Nickel-based wide-temperature-range high-strength self-lubricating composite material and preparation method thereof |
| CN113802029A (en) * | 2021-09-10 | 2021-12-17 | 西北工业大学 | NiTi-based self-lubricating composite material and preparation method thereof |
| CN113912298A (en) * | 2021-11-09 | 2022-01-11 | 东北大学 | Corrosion-resistant self-lubricating enamel coating capable of precipitating fluoride nanocrystalline in situ and preparation method thereof |
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