A kind of solid lubrication multilayer complex films and preparation method thereof
Technical field
The invention belongs to field of surface engineering technique, and a kind of Me/CuNiIn/ is deposited especially with magnetron sputtering technique
Me/MoS2The method of-Me multilayer complex films, present invention can apply to the wear-resistant places of various metals workpiece surface self-lubricating bite-resistant
Reason.
Background technology
MoS2It is known as the king of solid lubrication, there is excellent self-lubricating property, be widely applied in bearing, gear, knife
In the moving components such as tool and processing tool and mould.But MoS2It is prone to aoxidize and make it in moist atmosphere or oxidation environment
Greasy property is degenerated, and friction durability substantially reduces.Existing literature shows:Method using doping or composite membrane is to effectively improve
MoS2The method of lubrication and wear resistance property.Such as adulterate the MoS of Ti, Cr metallic element2-Ti、MoS2- Cr films, membrane structure more cause
Close, wear-resisting property has large increase.However the MoS of single layer2-Ti、MoS2The binding force of-Cr films and matrix is insufficient, the wear-resisting longevity
Life still needs to be further improved.
CN201110081977.1 discloses a kind of TiN+MoS2/ Zr combines coated cutting tool and its preparation process.The technique
In tool surface elder generation depositing TiN layer, then redeposition MoS2- Zr layers, duplex coating tool surface has higher hardness, simultaneously
There is lower friction coefficient again.
CN201310026859.5 discloses a kind of MoS of matrix surface high rigidity low abrasion2The preparation side of laminated film
Method.This method is sequentially depositing Ti prime coats, TiN transition zones, last depositing Ti-MoS in matrix surface2Laminated film, this mistake
Multilayered structure composite membrane tool is crossed to be well bonded and wear-resisting property.
Although these composite coatings are greatly improved to performance, one layer of MoS is only existed in film2, the lubricity of film
Can be still the MoS of single layer2In action, hard layer often only improves its mechanical performance to film, therefore greasy property is still
It is to be improved.MoS simultaneously2The binding force of film and other materials is insufficient, and friction durability is poor.
CuNiIn solid lubricant coatings are applied primarily in blade tenon, gear etc., have good anti-fretting wear,
Anti stickness is engaged performance, still has preferable greasy property at 500 DEG C of high temperature.
CN201420268461.2 discloses one kind and coating CuNiIn coatings on titanium alloy end tooth gear joggleword face,
TC11 and GH4169 alloys can be effectively prevent to stick together.But C. Mary wait [High temperature fretting wear of
A Ti alloy/CuNiIn contact,《Surface and Coatings Technology》, 2008,203:691-
698] research shows that:The friction coefficient of CuNiIn coatings is very high, and generally 0.5 ~ 0.8 or so, wear rate is high, and friction durability needs
It improves.
Invention content
The purpose of the present invention is the problems for above-mentioned composite lubricating film greasy property deficiency, provide a kind of solid lubrication multilayer
Composite membrane, the multilayer film have higher bond strength, low friction coefficient and wear rate.
It is a further object to provide a kind of solid lubrication multilayer complex films preparation method, this method
The requirement for meeting the preparation of low temperature large area has many advantages, such as that production efficiency is high, at low cost.
The present invention is achieved by the following technical solutions:Solid lubrication multilayer complex films are successively by matrix(1), metal bottom
Layer Me(2), CuNiIn layers(3), intermediate metal Me(4)And MoS2- Me layers(5)Constitute, wherein successively by(4),(3),(4)
With(5)Layer alternately constitutes multilayered structure, outermost layer MoS2- Me layers(5).
The metal Me is Ti, Cr or W.
The preparation method of the solid lubrication multilayer complex films, specifically comprises the steps of:
1. the workpiece through degreasing and rust removal is put into vacuum chamber, vacuum degree≤5 × 10-3Pa, Ion Cleaning workpiece;
2. in 0.1 ~ 0.8Pa of Ar Pressure, 5 ~ 12W/cm of metal Me target power outputs2, 100 ~ 300V of bias, 0.5 ~ 2kW of ion source
Under, deposited metal bottom Me(2), thickness is 100 ~ 300nm;
3. closing metal Me targets, CuNiIn targets are opened, in 0.3 ~ 2.0Pa of Ar Pressure, 5 ~ 12W/cm of power2, bias 30 ~
Under 200V, 0.3 ~ 1kW of ion source, CuNiIn layers are deposited(3), thickness 100nm ~ 1 μm;
4. closing CuNiIn targets, opening metal Me targets, in 0.3 ~ 2.0Pa of Ar Pressure, 5 ~ 12W/cm of power2, bias 100
~ 500V, 0.3 ~ 1kW of ion source, deposited metal transition zone Me(4), thickness is 50 ~ 200nm;
5. opening MoS simultaneously2Target and metal Me targets, in 0.3 ~ 2.0Pa of Ar Pressure, 3 ~ 5W/cm of metal Me target power outputs2, MoS2
5 ~ 12W/cm of target power output2, 30 ~ 200V of bias, 0.3 ~ 1kW of ion source deposit MoS2- Me layers(5), thickness is 100nm ~ 1 μm;
6. pressing step 4., 3., 4. and 5. alternating deposit intermediate metal Me successively(4), CuNiIn layers(3), metal transfer
Layer Me(4)And MoS2- Me layers(5), multilayered structure, outermost layer MoS are formed after depositing 5 ~ 50 times2- Me layers(5), overall thickness be 2 ~
50μm。
The present invention uses multilayered structure, interlayer CuNiIn layers and MoS to may be implemented for Me layers by intermediate metal2- Me layers
Good transition, Me layers of intermediate metal with CuNiIn layer with good binding force, while and MoS2- Me layers can on ingredient
With continuous transition, solves MoS2The problem of force difference is combined between CuNiIn, to which the combination for realizing high between layers is strong
Degree.
The present invention uses multilayered structure can be with effective protection MoS2It is not oxidized, and multilayered structure can be with blocking thin film column
Shape crystals growth, membrane structure is finer and close, and antioxygenic property and friction durability further increase.Multilayer complex films both had
The high-temperature oxidation resistance of CuNiIn films, while there is MoS again2The excellent greasy property of film, CuNiIn and MoS2Multilayer film
The single CuNiIn films or MoS of performance ratio2Film has more excellent wear-resisting property, thus the lubricated sliding wear of multilayer complex films
Performance is increased substantially.
The solid lubrication multilayer complex films that the present invention is deposited are more than HF3 grades with basal body binding force, and hardness is more than HV430,
Friction coefficient reduces by 100 times or more between 0.06 ~ 0.1, than single layer CuNiIn coating abrasion rates, than single layer MoS2- Me films
Wear rate reduce by 5 times or more.The multilayer complex films that are deposited of the present invention have excellent greasy property and wear-resisting property, can be with
It is used on the moving components such as bearing, blade, gear, cutter and processing tool and mould.
Description of the drawings
Fig. 1 is solid lubrication MULTILAYER COMPOSITE membrane structure diagram.
Specific implementation mode
Embodiment 1
1. using stainless steel base, matrix surface sand paper is polished, after polishing, is dried after ultrasonic oil removal, derusting cleaning
It is dry, it is put into vacuum chamber, background vacuum≤5 × 10-3Pa carries out icon bombardment cleaning processing to matrix;
2. Ti layers of deposited metal bottom:Ar Pressure is 0.2Pa, and metal Ti target power outputs are 12W/cm2, bias 300V, from
Component power is 0.5kW, time 10min, thickness 97nm;
3. closing Ti targets, CuNiIn targets are opened, deposit CuNiIn layers:Ar Pressure is 0.5Pa, and CuNiIn target power outputs are 5W/
cm2, bias 40V, ion source 0.8kW, time 8min, thickness is 0.12 μm;
4. closing CuNiIn targets, Ti targets, Ti layers of deposited metal transition zone are opened:Ar Pressure is 0.5Pa, and Ti target power outputs are
5W/cm2, bias 500V, ion source 0.8kW, time 10min, thickness 57nm;
5. opening MoS simultaneously2Target and Ti targets deposit MoS2- Ti layers:Ar Pressure is 0.5Pa, MoS2Target power output is 5W/cm2,
Ti target power outputs are 3W/cm2, bias 30V, ion source 0.8kW, time 20min, thickness is 0.11 μm;
6. pressing step 4., 3., 4. and 5. alternating deposit intermediate metal Ti(4), CuNiIn layers(3), intermediate metal Ti
(4)And MoS2- Ti layers(5), deposit 10 times, outermost layer MoS2- Ti layers(5), overall thickness is 3.47 μm.
The MULTILAYER COMPOSITE film hardness that deposition obtains is HV532, and friction coefficient 0.09, binding force is HF1 grades.
Embodiment 2
1. using titanium alloy substrate, matrix surface sand paper is polished, after polishing, is dried after ultrasonic oil removal, derusting cleaning
It is dry, it is put into vacuum chamber, background vacuum≤5 × 10-3Pa carries out icon bombardment cleaning processing to matrix;
2. Cr layers of deposited metal prime coat:Ar Pressure is 0.5 Pa, and metal Cr target power outputs are 9W/cm2, bias 200V,
Ion source 1.0kW, time 20min, thickness 187nm;
3. closing Cr targets, CuNiIn targets are opened, deposit CuNiIn layers:Ar Pressure is 1.0Pa, and CuNiIn target power outputs are 9W/
cm2, bias 100V, ion source 0.6kW, time 25min, thickness is 0.44 μm;
4. closing CuNiIn targets, Cr targets are opened, deposit Cr layers of intermetallic metal transition zone:Ar Pressure is 1.0Pa, Cr target power outputs
For 9W/cm2, bias 300V, ion source 0.6kW, time 15min, thickness 110nm;
5. opening MoS simultaneously2Target and Cr targets deposit MoS2- Cr layers:Ar Pressure is 1.0Pa, MoS2Target power output is 9W/cm2,
Cr target power outputs are 4W/cm2, bias 100V, ion source 0.6kW, time 50min, thickness is 0.67 μm;
6. pressing step 4., 3., 4. and 5. alternating deposit intermediate metal Ti(4), CuNiIn layers(3), intermediate metal Ti
(4)And MoS2- Ti layers(5), deposit 15 times, outermost layer MoS2- Cr layers(5), overall thickness is 20.82 μm.
The MULTILAYER COMPOSITE film hardness that deposition obtains is HV448, and friction coefficient 0.08, binding force is HF2 grades.
Embodiment 3
1. using high speed steel substrate, matrix surface sand paper is polished, after polishing, is dried after ultrasonic oil removal, derusting cleaning
It is dry, it is put into vacuum chamber, background vacuum≤5 × 10-3Pa carries out icon bombardment cleaning processing to matrix;
2. W layers of deposited metal prime coat:Ar Pressure is 0.8Pa, and metal W target power output is 5W/cm2, bias 100V, ion
Source 1.5kW, time 30min, thickness are 0.27 μm;
3. closing W targets, CuNiIn targets are opened, deposit CuNiIn layers:Ar Pressure is 2.0Pa, and CuNiIn target power outputs are 12W/
cm2, bias 180V, ion source 0.4kW, time 50min, thickness is 0.69 μm;
4. closing CuNiIn targets, W targets are opened, deposit W layers of intermetallic metal transition zone:Ar Pressure is 2.0Pa, and W target power outputs are
12W/cm2, bias 100V, ion source 0.4kW, time 10min, thickness is 0.18 μm;
5. opening MoS simultaneously2Target and W targets deposit MoS2- W layers:Ar Pressure is 2.0Pa, MoS2Target power output is 12W/cm2, W
Target power output is 5W/cm2, bias 150V, ion source 0.4kW, time 60min, thickness is 0.87 μm;
6. pressing step 4., 3., 4. and 5. alternating deposit intermediate metal Ti(4), CuNiIn layers(3), intermediate metal Ti
(4)And MoS2- Ti layers(5), deposit 20 times, outermost layer MoS2- W layers(5), overall thickness is 40.6 μm.
The MULTILAYER COMPOSITE film hardness that deposition obtains is HV469, and friction coefficient 0.06, binding force is HF3 grades.