CN108642325A - Continuous self-lubricating type nickel aluminium base self-lubricating composite of a kind of width temperature range and preparation method thereof - Google Patents
Continuous self-lubricating type nickel aluminium base self-lubricating composite of a kind of width temperature range and preparation method thereof Download PDFInfo
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- CN108642325A CN108642325A CN201810522842.1A CN201810522842A CN108642325A CN 108642325 A CN108642325 A CN 108642325A CN 201810522842 A CN201810522842 A CN 201810522842A CN 108642325 A CN108642325 A CN 108642325A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
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- 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
- C22C32/0089—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 with other, not previously mentioned inorganic compounds as the main non-metallic constituent, e.g. sulfides, glass
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Abstract
The invention discloses continuous self-lubricating type nickel aluminium base self-lubricating composites of a kind of wide temperature range and preparation method thereof, it is prepared as a raw material with Nickel Aluminium Alloy Powder, silver powder and boric acid magnesium powder, wherein quality of cathode silver percentage composition 2 ~ 8%, antifungin powder mass percentage 2 ~ 8%, surplus is Nickel Aluminium Alloy Powder.Microstructure of composite structure is uniform, and lubrication is mutually tightly combined between matrix, has good wide temperature range continuous lubrication performance and properties of antifriction and wear resistance.Preparation method is as follows：Nickel Aluminium Alloy Powder, silver powder and boric acid magnesium powder are weighed by mass percentage, obtain original ingredient；Original ingredient is placed in planetary ball mill and carries out mechanical alloying, obtains uniformly mixed sintered material；Sintered material is put into graphite grinding tool, is prepared using discharge plasma sintering under argon gas vacuum protection, obtains the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range.Preparation method of the invention is simple for process, parameter is easily-controllable, and safe preparation process environmental protection is suitable for large-scale production.
Description
Technical field
The present invention relates to metal-based self-lubricating composite material and its preparing technical fields, have more particularly, to one kind
The New Nickel aluminium base self-lubricating composite and preparation method thereof of the wide continuous self-lubricating function of temperature range.
Background technology
Nickel alumin(i)um alloy is because having the excellent properties such as low-density, high intensity, high ratio modulus and good high-temperature oxidation resistance,
For the high-technology fields such as Aeronautics and Astronautics and nuclear energy engineering ideal lightweight structural material most with prospects.However, nickel aluminium closes
Gold has higher friction coefficient and wear extent under dry sliding friction operating mode, and which greatly limits it in high-new skill
Extensive use in art field.
To solve this technical problem, domestic and international researcher in nickel alumin(i)um alloy by adding WS2、Ag、ZnO、CaF2、
Nickel aluminium base self-lubricating composite is made in the kollags such as graphene, and compared with nickel alumin(i)um alloy, tribological property has obviously
Improve.This represents the developing direction of next-generation novel light structural material, and research and development novel solid lubricant is very
Valuable exploration.
Friction, abrasion and the profit of severe operating mode lower structure material in the high-technology fields such as Aeronautics and Astronautics and nuclear energy engineering
Sliding problem is to influence the principal element of whole system reliability and service life, therefore there is an urgent need to develop to have good machine in wide temperature range
The solid self lubricant material of tool intensity and tribological property.However, conventional solid lubricant existing defects and limitation：Solid moistens
Lubrication prescription is typically to improve material friction performance to sacrifice basis material intensity as cost；Kollag be typically only capable to compared with
Narrow temperature section has lubricating action, can then lubrication failure be caused to even result in major accident beyond use temperature range.
To solve this technical problem, the present invention proposes that silver and antifungin combination prepare nickel aluminum-base composite material with nickel alumin(i)um alloy
Material, silver be used as in low-temperature lubrication phase, antifungin as reinforced phase and high temperature lubricating phase, nickel alumin(i)um alloy as matrix.The composite wood
Material is expected to become the new structural material with the continuous self-lubricating function of wide temperature range, multiple to further expand nickel aluminium base self-lubricating
The engineering application field of condensation material, it means that present invention research has important theory and practical significance.
Invention content
First technical problem to be solved by this invention is to provide a kind of continuous self-lubricating type nickel aluminium base of wide temperature range from profit
Composite material is slided, silver is uniformly distributed with antifungin in the composite material, and is tightly combined between matrix, has good wide temperature range
Continuous self-lubricating property.
Second technical problem to be solved by this invention is to provide a kind of continuous self-lubricating type nickel aluminium base of wide temperature range from profit
The preparation method of sliding composite material, this method is simple for process, parameter is easily-controllable, and safe preparation process environmental protection is suitble to large-scale industry
Metaplasia is produced.
In order to solve the first technical problem mentioned above, the technical solution adopted by the present invention is to provide a kind of wide temperature range continuously from moistening
Slip nickel aluminium base self-lubricating composite, the composite material using Nickel Aluminium Alloy Powder, silver powder and boric acid magnesium powder as raw material prepare and
At wherein quality of cathode silver percentage is 2 ~ 8%, and antifungin powder mass percent is 2 ~ 8%, and surplus is Nickel Aluminium Alloy Powder.
In the present invention, 15 μm of the silver powder average grain diameter, boric acid magnesium powder average grain diameter 25nm, Nickel Aluminium Alloy Powder average grain diameter
25μm。
In the present invention, low-temperature lubrication phase during the silver is used as, antifungin is as reinforced phase and high temperature lubricating phase, silver powder and boron
Sour magnesium powder has excellent collaboration lubricating effect.
To solve above-mentioned second technical problem, the technical solution adopted by the present invention is to provide a kind of discharge plasma sintering
The method for preparing the continuous self-lubricating type nickel aluminium base self-lubricating composite of above-mentioned wide temperature range, this method include following step：
（1）Nickel Aluminium Alloy Powder, silver powder and boric acid magnesium powder are weighed by weight ratio, obtain original ingredient；
（2）Original ingredient is placed in planetary ball mill and carries out mechanical alloying, obtains uniformly mixed sintered material；
（3）Sintered material is put into graphite grinding tool, is prepared using discharge plasma sintering under argon gas vacuum protection, wide temperature is obtained
The continuous self-lubricating type nickel aluminium base self-lubricating composite in domain.
The step（1）Quality of cathode silver percentage composition in original ingredient is 2 ~ 8%, and antifungin powder mass percentage is 2
~ 8%, surplus is Nickel Aluminium Alloy Powder.
The step（2）In ratio of grinding media to material be 10:1,200 ~ 600r/min of rotational speed of ball-mill, Ball-milling Time 4 ~ 8 hours.
The step（3）Middle sintering temperature is 900 ~ 1100 DEG C, 100 ~ 140 DEG C/min of heating rate, sintering pressure 30 ~
40MPa, 6 ~ 10min of soaking time.
The beneficial effects of the invention are as follows：1, the continuous self-lubricating type nickel aluminium base self-lubricating composite wood of wide temperature range prepared by the present invention
Material contains reinforced phase and basic, normal, high gentle sliding phase simultaneously, and uniform texture has in 25 DEG C to 800 DEG C sections and continuously moistens certainly
Slip energy and antiwear and friction reduction property；2, silver and antifungin have excellent collaboration lubricating effect, in Novel wide temperature domain continuously from profit
There is wide application prospect in sliding material；3, discharge plasma sintering process is simple, parameter is easily-controllable, safe preparation process environmental protection,
Suitable for large-scale production；4, raw material sources extensively, it is environmental sound, of low cost, it is easy to spread.
Description of the drawings
Fig. 1 is the preparation technology flow chart of the present invention.
Fig. 2 be embodiment 1 prepare the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range friction coefficient and
Wear rate varies with temperature figure, and fretting wear working condition is：30 ~ 800 DEG C of temperature, load 8N, sliding speed 0.2m/s, time
80min。
Fig. 3 be embodiment 1 prepare 30 DEG C of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range under the conditions of
Worn-out surface shape appearance figure.
Fig. 4 be embodiment 1 prepare 200 DEG C of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range under the conditions of
Worn-out surface shape appearance figure.
Fig. 5 be embodiment 1 prepare 400 DEG C of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range under the conditions of
Worn-out surface shape appearance figure.
Fig. 6 be embodiment 1 prepare 600 DEG C of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range under the conditions of
Worn-out surface shape appearance figure.
Fig. 7 be embodiment 1 prepare 800 DEG C of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range under the conditions of
Worn-out surface shape appearance figure.
Fig. 8 be embodiment 2 prepare the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range friction coefficient and
Wear rate varies with temperature figure, and fretting wear working condition is：25 ~ 800 DEG C of temperature, load 8N, sliding speed 0.2m/s, time
80min。
Fig. 9 be embodiment 3 prepare the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range friction coefficient and
Wear rate varies with temperature figure, and fretting wear working condition is：25 ~ 800 DEG C of temperature, load 8N, sliding speed 0.2m/s, time
80min。
Specific implementation mode
With reference to specific embodiment, the present invention will be further described.It should be understood that following embodiment is merely to illustrate this
The person skilled in the art of the range of invention and is not intended to limit the present invention, the field can make one according to the content of foregoing invention
A little nonessential modifications and adaptations.
Embodiment 1
The preparation method of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range of the present embodiment, steps are as follows：
（1）It is 2% in quality of cathode silver score, the ratio that antifungin powder mass fraction is 8% and Nickel Aluminium Alloy Powder mass fraction is 90%
Dispensing weighs 9 grams of 0.2 gram of silver powder, 0.8 gram of boric acid magnesium powder and Nickel Aluminium Alloy Powder, obtains original ingredient, the wherein average grain of silver powder
Diameter is 15 μm, and the average grain diameter of boric acid magnesium powder is 25nm, and the average grain diameter of Nickel Aluminium Alloy Powder is 25 μm；
（2）Original ingredient is placed in planetary ball mill, by ratio of grinding media to material 10:1, rotating speed 200r/min, ball milling mixing 4 hours,
Cooling obtains uniformly mixed sintered material；
（3）Sintered material is put into graphite grinding tool, vacuum argon gas protection under use discharge plasma sintering, with 100 DEG C/
Min heating rates rise to 900 DEG C, are forced into 30MPa, keep the temperature cooling down after 6min, and the continuous self-lubricating type nickel of width temperature range is made
Aluminium base self-lubricating composite.
Example 1 is applied using the test of HVS-1000 type digital display micro-vickers hardness instrument, the continuous self-lubricating type nickel aluminium base of wide temperature range is made
The hardness of self-lubricating composite is 5.85GPa.Fig. 2 is that the continuous self-lubricating type nickel aluminium base self-lubricating of wide temperature range is made in embodiment 1
The friction coefficient and wear rate curve graph of composite material, as seen from the figure composite material friction coefficient under room temperature and abrasion
Rate is respectively 0.36 and 4.11 × 10-5mm3/ (Nm), friction coefficient and wear rate under the conditions of 200 DEG C are respectively 0.34 and 3.62
×10-5mm3/ (Nm), friction coefficient and wear rate under the conditions of 400 DEG C are respectively 0.37 and 4.04 × 10-5mm3/ (Nm), 600
Friction coefficient and wear rate under the conditions of DEG C are respectively 0.35 and 3.45 × 10-5mm3/ (Nm), the friction coefficient under the conditions of 800 DEG C
It is respectively 0.34 and 3.12 × 10 with wear rate-5mm3/ (Nm) shows that the composite material has excellent high temperature antiwear and antifriction
Energy.Fig. 3 to Fig. 7 be embodiment 1 be made the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range respectively 30 DEG C, 200
DEG C, 400 DEG C, 600 DEG C, the worn-out surface shape appearance figure under the conditions of 800 DEG C, the wide temperature range of room temperature to 800 DEG C can be observed from figure
Under the conditions of frictional abrasion surface it is more smooth, more complete lubricating film has been respectively formed, it ensure that composite material is in wide temperature range
Section has continuous self-lubricating property and antiwear and friction reduction property.
Embodiment 2
The preparation method of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range of the present embodiment, steps are as follows：
（1）It is 5% in quality of cathode silver score, the ratio that antifungin powder mass fraction is 5% and Nickel Aluminium Alloy Powder mass fraction is 90%
Dispensing weighs 9 grams of 0.5 gram of silver powder, 0.5 gram of boric acid magnesium powder and Nickel Aluminium Alloy Powder, obtains original ingredient；
（2）Original ingredient is placed in planetary ball mill, by ratio of grinding media to material 10:1, rotating speed 400r/min, ball milling mixing 6 hours,
Cooling obtains uniformly mixed sintered material；
（3）Sintered material is put into graphite grinding tool, vacuum argon gas protection under use discharge plasma sintering, with 120 DEG C/
Min heating rates rise to 1000 DEG C, are forced into 35MPa, keep the temperature cooling down after 8min, and the continuous self-lubricating type nickel of width temperature range is made
Aluminium base self-lubricating composite.
Example 2 is applied using the test of HVS-1000 type digital display micro-vickers hardness instrument, the continuous self-lubricating type nickel aluminium base of wide temperature range is made
The hardness of self-lubricating composite is 6.31GPa.Fig. 2 is that the continuous self-lubricating type nickel aluminium base self-lubricating of wide temperature range is made in embodiment 2
The friction coefficient and wear rate curve of composite material, as seen from the figure composite material friction coefficient under room temperature and wear rate
Respectively 0.34 and 3.71 × 10-5mm3/ (Nm), friction coefficient and wear rate under the conditions of 200 DEG C be respectively 0.35 and 3.62 ×
10-5mm3/ (Nm), friction coefficient and wear rate under the conditions of 400 DEG C are respectively 0.37 and 4.15 × 10-5mm3/ (Nm), 600 DEG C
Under the conditions of friction coefficient and wear rate be respectively 0.36 and 3.75 × 10-5mm3/ (Nm), friction coefficient under the conditions of 800 DEG C and
Wear rate is respectively 0.35 and 3.42 × 10-5mm3/ (Nm) shows that the composite material has in the wide temperature range section of room temperature to 800 DEG C
There are continuous self-lubricating property and antiwear and friction reduction property.
Embodiment 3
The preparation method of the continuous self-lubricating type nickel aluminium base self-lubricating composite of wide temperature range of the present embodiment, steps are as follows：
（1）It is 8% in quality of cathode silver score, the ratio that antifungin powder mass fraction is 2% and Nickel Aluminium Alloy Powder mass fraction is 90%
Dispensing weighs 9 grams of 0.8 gram of silver powder, 0.2 gram of boric acid magnesium powder and Nickel Aluminium Alloy Powder, obtains original ingredient；
（2）Original ingredient is placed in planetary ball mill, by ratio of grinding media to material 10:1, rotating speed 600r/min, ball milling mixing 8 hours,
Cooling obtains uniformly mixed sintered material；
（3）Sintered material is put into graphite grinding tool, vacuum argon gas protection under use discharge plasma sintering, with 140 DEG C/
Min heating rates rise to 1100 DEG C, are forced into 40MPa, keep the temperature cooling down after 10min, and the continuous self-lubricating type of width temperature range is made
Nickel aluminium base self-lubricating composite.
Example 3 is applied using the test of HVS-1000 type digital display micro-vickers hardness instrument, the continuous self-lubricating type nickel aluminium base of wide temperature range is made
The hardness of self-lubricating composite is 6.48GPa.Fig. 3 is that the continuous self-lubricating type nickel aluminium base self-lubricating of wide temperature range is made in embodiment 3
The friction coefficient and wear rate curve of composite material, as seen from the figure composite material friction coefficient under room temperature and wear rate
Respectively 0.35 and 3.61 × 10-5mm3/ (Nm), friction coefficient and wear rate under the conditions of 200 DEG C be respectively 0.37 and 3.92 ×
10-5mm3/ (Nm), friction coefficient and wear rate under the conditions of 400 DEG C are respectively 0.36 and 3.72 × 10-5mm3/ (Nm), 600 DEG C
Under the conditions of friction coefficient and wear rate be respectively 0.34 and 3.25 × 10-5mm3/ (Nm), friction coefficient under the conditions of 800 DEG C and
Wear rate is respectively 0.35 and 3.55 × 10-5mm3/ (Nm) shows that the composite material has in the wide temperature range section of room temperature to 800 DEG C
There are continuous self-lubricating property and antiwear and friction reduction property.
The basic principles and main features and advantages of the present invention of the present invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (7)
1. a kind of continuous self-lubricating type nickel aluminium base self-lubricating composite of width temperature range, it is characterised in that：The composite material is with nickel
Al alloy powder, silver powder and boric acid magnesium powder are prepared as a raw material, and wherein quality of cathode silver percentage composition is 2 ~ 8%, antifungin silty amount
Percentage composition is 2 ~ 8%, and surplus is Nickel Aluminium Alloy Powder.
2. the continuous self-lubricating type nickel aluminium base self-lubricating composite of width temperature range according to claim 1, it is characterised in that：Institute
The average grain diameter for stating silver powder is 15 μm, and the average grain diameter of boric acid magnesium powder is 25nm, and the average grain diameter of Nickel Aluminium Alloy Powder is 25 μm.
3. the continuous self-lubricating type nickel aluminium base self-lubricating composite of width temperature range according to claim 1 or 2, feature exist
In：Low-temperature lubrication phase during the silver powder is used as, boric acid magnesium powder is as reinforced phase and high temperature lubricating phase.
4. according to the preparation side of any continuous self-lubricating type nickel aluminium base self-lubricating composites of wide temperature range of claim 1-3
Method, which is characterized in that comprise the following steps：
（1）Nickel Aluminium Alloy Powder, silver powder and boric acid magnesium powder are weighed by weight ratio, obtain original ingredient；
（2）Original ingredient is placed in planetary ball mill and carries out mechanical alloying, obtains uniformly mixed sintered material；
（3）Sintered material is put into graphite grinding tool, is prepared using discharge plasma sintering under argon gas vacuum protection, wide temperature is obtained
The continuous self-lubricating type nickel aluminium base self-lubricating composite in domain.
5. original ingredient mechanical alloying according to claim 4, the wide continuous self-lubricating type nickel aluminium base self-lubricating of temperature range is multiple
The preparation method of condensation material, it is characterised in that：The step（1）Quality of cathode silver percentage composition in original ingredient is 2 ~ 8%, boron
Sour magnesium powder mass percentage is 2 ~ 8%, and surplus is Nickel Aluminium Alloy Powder.
6. original ingredient mechanical alloying according to claim 4, the wide continuous self-lubricating type nickel aluminium base self-lubricating of temperature range is multiple
The preparation method of condensation material, it is characterised in that：The step（2）In ratio of grinding media to material be 10:1,200 ~ 600r/min of rotational speed of ball-mill,
Ball-milling Time 4 ~ 8 hours.
7. original ingredient mechanical alloying according to claim 4, the wide continuous self-lubricating type nickel aluminium base self-lubricating of temperature range is multiple
The preparation method of condensation material, it is characterised in that：The step（3）Middle sintering temperature is 900 ~ 1100 DEG C, heating rate 100 ~ 140
DEG C/min, it is sintered 30 ~ 40MPa of pressure, 6 ~ 10min of soaking time.
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| CN201810522842.1A CN108642325B (en) | 2018-05-28 | 2018-05-28 | Continuous self-lubricating type nickel aluminium base self-lubricating composite of a kind of width temperature range and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118380A (en) * | 2020-02-20 | 2020-05-08 | 黄河水利职业技术学院 | Carbon nano tube and phosphate synergistic enhanced nickel-aluminum-based composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603233A (en) * | 2016-01-15 | 2016-05-25 | 武汉理工大学 | Novel NiAl-based self-lubricating material using Ag and Mo-B-O-Si four-element platy crystal as composite lubricating phase and reinforcing phase and preparation method of novel NiAl-based self-lubricating material |
-
2018
- 2018-05-28 CN CN201810522842.1A patent/CN108642325B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603233A (en) * | 2016-01-15 | 2016-05-25 | 武汉理工大学 | Novel NiAl-based self-lubricating material using Ag and Mo-B-O-Si four-element platy crystal as composite lubricating phase and reinforcing phase and preparation method of novel NiAl-based self-lubricating material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118380A (en) * | 2020-02-20 | 2020-05-08 | 黄河水利职业技术学院 | Carbon nano tube and phosphate synergistic enhanced nickel-aluminum-based composite material and preparation method thereof |
| CN111118380B (en) * | 2020-02-20 | 2021-02-05 | 黄河水利职业技术学院 | Carbon nano tube and phosphate synergistic enhanced nickel-aluminum-based composite material and preparation method thereof |
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