CN107130196A - A kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour - Google Patents
A kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour Download PDFInfo
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- CN107130196A CN107130196A CN201710373685.8A CN201710373685A CN107130196A CN 107130196 A CN107130196 A CN 107130196A CN 201710373685 A CN201710373685 A CN 201710373685A CN 107130196 A CN107130196 A CN 107130196A
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- magnesium alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
Abstract
The invention discloses a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour, it is characterised in that：Magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, utilize fatigue tester, the tension and compression pulsating stress load less than yield limit is used to preload in above-mentioned sample under 25 DEG C of environment of room temperature, after the completion of preloading, sample is placed in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag and carries out immersion treatment, sample is taken out in immersion after 2 to 4 hours, and sample surfaces are carried out into oil removal treatment, completes the processing to magnesium alloy sample.The present invention is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy crystal grain, raising fatigue of materials intensity, simultaneously using nanoscale blast furnace titaniferous slag to carrying out surface reconditioning at the defect on magnesium alloy materials surface or out-of-flatness, it can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve the fatigue behaviour under magnesium alloy materials lubricating oil operating mode.
Description
Technical field
This patent belongs to the technical field of magnesium alloy materials performance, is for improving magnesium alloy lubricating oil operating mode fatigue behaviour
New method.
Background technology
In recent years, gradually attention of the China to automobile fuel consumption, discharge and automotive light weight technology is had benefited from, magnesium alloy is led in automobile
Domain is widely used, and being considered as auto industry most has the metal material of application potential.By forming technology, magnesium alloy is divided into
Cast magnesium alloy and wrought magnesium alloy, application component cover multiple systems such as dynamical system, transmission system, parts clamshell, research
The fatigue behaviour for how improving magnesium alloy is the focus and emphasis of current Study for Magnesium Composites.
At present, the research on strengthening fatigue behavior primarily focuses on rare earth element addition, heat treatment, predeformation
In terms of, lack very much for the fatigue behaviour research under actual condition.In addition, automobile dynamic system and drivetrain components are big
Lubricating oil system component is belonged to, the acid number of lubricating oil can have with the hydrocarbon oxidation generation during use in actual use
Machine acid and increase so that the corrosivity of lubricating oil increases, now, how to prevent or does not slow down lubricating oil to System of Detecting Surface Defects For Material or not
The erosion at smooth place, is to prevent fatigue crack initiation, the key factor of reinforcing material fatigue behaviour.
In addition, there are some researches show can be used as additive progress material surface using nano material in lubricating oil at present
Defect repair, adds Nanometer Copper, nano-TiO such as in lubricating oil2Etc. nano material as additive, friction that can be to material
Surface is repaired, and forms corresponding self-repairing control, improves the friction resistant performance of material.But it is above-mentioned as lube oil additive
The expensive therefore current application of nano material is very limited.It is simultaneously simple to be added using nano material as lubricating oil
Agent carries out the surface reconditioning of material, is primarily directed to the hydrodynamics of material surface, for sides such as material internal structure reinforcings
The effect in face is relatively limited.
In summary, for the magnesium alloy component in automobile lubrication oil system, how to find it is effective and meanwhile cost compared with
Low processing method, to improve fatigue behaviour of the magnesium alloy component in lubricating oil system, leads for magnesium alloy materials in automobile
The application value in domain is very big.
The content of the invention
It is an object of the invention to：Exist in use for the magnesium alloy component under automotive field lubricating oil operating mode
Lubricating oil corrode influence to fatigue of materials performance, propose a kind of new side for improving magnesium alloy lubricating oil operating mode fatigue behaviour
Method, this method not only can with refiner material crystal grain, fatigue of materials intensity is improved, while can also to the defect of material surface or not
Smooth place is repaired, and to slow down and prevent lubricating oil to the erosion at System of Detecting Surface Defects For Material or out-of-flatness, reaching prevents fatigue
The purpose of crack initiation, reinforcing material fatigue behaviour.
To reach above-mentioned purpose, the present invention provides following technical scheme：
A kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour, magnesium alloy is prepared into and is easy to fatigue tester clamping
Sample, using fatigue tester, use drawing-pressure circulation less than yield limit should to above-mentioned sample under 25 DEG C of environment of room temperature
Power load is preloaded, after the completion of preloading, and sample is placed in and made containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive
Immersion treatment is carried out, sample is taken out in immersion after 2 to 4 hours, and sample surfaces are carried out into oil removal treatment, is completed to magnesium alloy sample
Processing.
Further, described magnesium alloy is cast magnesium alloy or wrought magnesium alloy.
Further, described magnesium alloy sample, surface roughness is 0.8 to 0.2.
Further, described nanoscale blast furnace titaniferous slag, granularity is between 10nm~100nm.
Further, described lubricating oil is fresh oil, and acid number is less than or equal to 0.1mgKOH/g.
Further, described lubricating oil is any one in mineral lubricating oil, semi-synthetic lubricating oil or fully synthetic lubricating oil
Kind.
Further, described utilization fatigue tester uses drawing-pressure circulation less than yield limit should to magnesium alloy sample
Power load is preloaded, and such as magnesium alloy is that the maximum stress in cast magnesium alloy, drawing-pressure pulsating stress load is yield limit
10% to 20%, stress ratio is 0, and the cycle-index of preloading is 5000 to 10000 cycles.
Further, described utilization fatigue tester uses drawing-pressure circulation less than yield limit should to magnesium alloy sample
Power load is preloaded, and such as magnesium alloy is that the maximum stress in wrought magnesium alloy, drawing-pressure pulsating stress load is yield limit
20% to 40%, stress ratio is 0, and the cycle-index of preloading is 1000 to 10000 cycles.
Further, the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, the content of nanoscale blast furnace titaniferous slag
For the 0.5% to 1.25% of quality of lubrication oil.
Further, described nanoscale blast furnace titaniferous slag, its TiO2Content be 15%~25% (mass percent), simultaneously
SiO2Content be 15%~20% (mass percent).
Beneficial effects of the present invention include following several respects.
1) magnesium alloy materials are directed to, are preloaded using the drawing less than yield limit-pressure pulsating stress load, can be with
Refiner material crystal grain, raising fatigue of materials intensity.Meanwhile, for cast magnesium alloy and wrought magnesium alloy, choose respectively different
The maximum stress that drawing-pressure pulsating stress load is preloaded, can play more preferable effect to the crystal grain refinement of magnesium alloy, and will not
Cause the fatigue damage of material.In addition, the stress ratio of drawing-pressure pulsating stress load is that 0 (i.e. minimum stress is 0, has been circulated every time
Full unloading), the unstability in preloading procedure can be prevented, while also allowing material to be not present in each cyclic process of preloading
Residual stress, it is to avoid cause corresponding material damage.
2) in the present invention, the magnesium after being preloaded using drawing-pressure pulsating stress load less than yield limit is closed
It is high that golden material is placed in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag the nanoscale carried out in immersion treatment, lubricating oil
Stove titanium slag can form corresponding repair membrane to being repaired at the defect of material surface or out-of-flatness.Received relative to simple
For rice material is repaired, what is exposed at the defect of the material surface after the preloading of pulsating stress load or out-of-flatness more fills
Point, now repaired, repaiied at defect that can sufficiently to material surface or out-of-flatness using nanoscale blast furnace titaniferous slag
Multiple, repairing effect is obvious compared with the effect that surface reconditioning is directly carried out without pre- CYCLIC LOADING preferably.
3) surface of magnesium alloy materials in the present invention, is carried out as lube oil additive using nanoscale blast furnace titaniferous slag
Repair, the products material of nanoscale blast furnace titaniferous slag comes from the clinker after vanadium titano-magnetite blast furnace process (i.e. blast furnace titaniferous slag), belong to
Reclaimed in solid waste, compared to Nanometer Copper, nano-TiO2For repair materials, cost advantage is clearly.In addition, blast furnace titanium
Slag ore deposit is mutually complicated, and main ore deposit is mutually perovskite, climb titandiopside, rich titandiopside and magnesium aluminate spinel, and chemical property is stable,
Insoluble in general soda acid, the repair membrane formed at nanoscale blast furnace titaniferous slag repair materials surface defect or out-of-flatness, phase are utilized
Compared with Nanometer Copper, nano-TiO2Deng more stable for material, corrosion resistance is stronger, can effectively slow down or prevent lubricating oil from making
The corrupting influence that acid number increase is brought during, so as to strengthen the fatigue behaviour of material under lubricating oil operating mode.
4) the inventive method is simple for process, while the raw material to the nanoscale blast furnace titaniferous slag of surface reconditioning belongs to
Solid waste is reclaimed, and cost is extremely low, and overall technology, economic advantages are fairly obvious.
Brief description of the drawings
Fig. 1 is schematic flow sheet of the invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As illustrated, a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour of the present embodiment, including following step
Suddenly：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Immersion treatment is carried out in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, immersion takes out sample after 2 to 4 hours, and
Sample surfaces are subjected to oil removal treatment, the processing to magnesium alloy sample is completed.Wherein, magnesium alloy can be cast magnesium alloy,
It can be wrought magnesium alloy；The surface roughness of magnesium alloy sample is 0.8 to 0.2；The granularity of nanoscale blast furnace titaniferous slag is 10nm
~100nm；Lubricating oil to soak is fresh oil, and acid number is less than or equal to 0.1mgKOH/g；Lubricating oil to soak is ore deposit
Any one in thing lubricating oil, semi-synthetic lubricating oil or fully synthetic lubricating oil.
2) above-mentioned steps 1) in, such as the material of magnesium alloy sample is cast magnesium alloy, then draws-press pulsating stress load pre-
Maximum stress in loading is the 10% to 20% of yield limit, and stress ratio is 0, and the cycle-index of preloading is 5000 to 10000
Cycle.
3) above-mentioned steps 1) in, such as the material of magnesium alloy sample is wrought magnesium alloy, then draws-press pulsating stress load pre-
Maximum stress in loading is the 20% to 40% of yield limit, and cycle stress ratio is 0, the cycle-index of preloading for 1000 to
10000 cycles.
4) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 0.5% to 1.25% of quality of lubrication oil.
5) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
15%~25% (mass percent), while SiO2Content be 15%~20% (mass percent).
The present invention is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be brilliant with Refining Mg Alloy
Grain, raising fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to entering at the defect on magnesium alloy materials surface or out-of-flatness
Row surface reconditioning, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, to greatly improve magnesium alloy
Fatigue behaviour under material lubricating oil operating mode.The inventive method is simple for process, while the nanoscale to surface reconditioning is high
The raw material of stove titanium slag belongs to solid waste recovery, and cost is extremely low, and overall technology, economic advantages are fairly obvious.
1st embodiment：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Carry out immersion treatment in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, sample is taken out in immersion after 2 hours, and by sample
Product surface carries out oil removal treatment, completes the processing to magnesium alloy sample.Wherein, magnesium alloy is cast magnesium alloy；Magnesium alloy sample
Surface roughness be 0.8；The granularity of nanoscale blast furnace titaniferous slag is 100nm；Lubricating oil to soak is mineral lubricating oil, and
For fresh oil, acid number is 0.1mgKOH/g.
2) above-mentioned steps 1) in, the maximum stress during drawing-pressure pulsating stress load is preloaded is the 10% of yield limit, should
Power ratio is 0, and the cycle-index of preloading is 10000 cycles.
3) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 0.5% of quality of lubrication oil.
4) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
15% (mass percent), while SiO2Content be 15% (mass percent).
The present embodiment is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy
Crystal grain, improve fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to the defect on magnesium alloy materials surface or out-of-flatness at
Surface reconditioning is carried out, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve magnesium alloy material
Expect the fatigue behaviour under lubricating oil operating mode.Method is simple and easy to apply, and overall technology, economic advantages are fairly obvious.
2nd embodiment：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Carry out immersion treatment in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, sample is taken out in immersion after 3 hours, and by sample
Product surface carries out oil removal treatment, completes the processing to magnesium alloy sample.Wherein, magnesium alloy is cast magnesium alloy；Magnesium alloy sample
Surface roughness be 0.5；The granularity of nanoscale blast furnace titaniferous slag is 50nm；Lubricating oil to soak is semi-synthetic lubricating oil,
And be fresh oil, acid number is 0.08mgKOH/g.
2) above-mentioned steps 1) in, the maximum stress during drawing-pressure pulsating stress load is preloaded is the 15% of yield limit, should
Power ratio is 0, and the cycle-index of preloading is 7500 cycles.
3) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 1.0% of quality of lubrication oil.
4) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
20% (mass percent), while SiO2Content be 17.5% (mass percent).
The present embodiment is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy
Crystal grain, improve fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to the defect on magnesium alloy materials surface or out-of-flatness at
Surface reconditioning is carried out, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve magnesium alloy material
Expect the fatigue behaviour under lubricating oil operating mode.Method is simple and easy to apply, and overall technology, economic advantages are fairly obvious.
3rd embodiment：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Carry out immersion treatment in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, sample is taken out in immersion after 4 hours, and by sample
Product surface carries out oil removal treatment, completes the processing to magnesium alloy sample.Wherein, magnesium alloy is cast magnesium alloy；Magnesium alloy sample
Surface roughness be 0.2；The granularity of nanoscale blast furnace titaniferous slag is 10nm；Lubricating oil to soak is fully synthetic lubricating oil,
And be fresh oil, acid number is 0.06mgKOH/g.
2) above-mentioned steps 1) in, the maximum stress during drawing-pressure pulsating stress load is preloaded is the 20% of yield limit, should
Power ratio is 0, and the cycle-index of preloading is 5000 cycles.
3) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 1.25% of quality of lubrication oil.
4) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
25% (mass percent), while SiO2Content be 20% (mass percent).
The present embodiment is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy
Crystal grain, improve fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to the defect on magnesium alloy materials surface or out-of-flatness at
Surface reconditioning is carried out, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve magnesium alloy material
Expect the fatigue behaviour under lubricating oil operating mode.Method is simple and easy to apply, and overall technology, economic advantages are fairly obvious.
4th embodiment：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Carry out immersion treatment in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, sample is taken out in immersion after 2 hours, and by sample
Product surface carries out oil removal treatment, completes the processing to magnesium alloy sample.Wherein, magnesium alloy is wrought magnesium alloy；Magnesium alloy sample
Surface roughness be 0.8；The granularity of nanoscale blast furnace titaniferous slag is 100nm；Lubricating oil to soak is mineral lubricating oil, and
For fresh oil, acid number is 0.05mgKOH/g.
2) above-mentioned steps 1) in, the maximum stress during drawing-pressure pulsating stress load is preloaded is the 20% of yield limit, should
Power ratio is 0, and the cycle-index of preloading is 10000 cycles.
3) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 0.5% of quality of lubrication oil.
4) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
15% (mass percent), while SiO2Content be 15% (mass percent).
The present embodiment is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy
Crystal grain, improve fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to the defect on magnesium alloy materials surface or out-of-flatness at
Surface reconditioning is carried out, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve magnesium alloy material
Expect the fatigue behaviour under lubricating oil operating mode.Method is simple and easy to apply, and overall technology, economic advantages are fairly obvious.
5th embodiment：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Carry out immersion treatment in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, sample is taken out in immersion after 3 hours, and by sample
Product surface carries out oil removal treatment, completes the processing to magnesium alloy sample.Wherein, magnesium alloy is wrought magnesium alloy；Magnesium alloy sample
Surface roughness be 0.5；The granularity of nanoscale blast furnace titaniferous slag is 50nm；Lubricating oil to soak is semi-synthetic lubricating oil,
And be fresh oil, acid number is 0.035mgKOH/g.
2) above-mentioned steps 1) in, the maximum stress during drawing-pressure pulsating stress load is preloaded is the 30% of yield limit, should
Power ratio is 0, and the cycle-index of preloading is 5000 cycles.
3) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 1.0% of quality of lubrication oil.
4) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
20% (mass percent), while SiO2Content be 17.5% (mass percent).
The present embodiment is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy
Crystal grain, improve fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to the defect on magnesium alloy materials surface or out-of-flatness at
Surface reconditioning is carried out, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve magnesium alloy material
Expect the fatigue behaviour under lubricating oil operating mode.Method is simple and easy to apply, and overall technology, economic advantages are fairly obvious.
6th embodiment：
1) magnesium alloy is prepared into the sample for being easy to fatigue tester clamping, using fatigue tester, under 25 DEG C of environment of room temperature
Use drawing-pressure pulsating stress load less than yield limit to preload in above-mentioned sample, after the completion of preloading, sample is put
Carry out immersion treatment in the lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, sample is taken out in immersion after 4 hours, and by sample
Product surface carries out oil removal treatment, completes the processing to magnesium alloy sample.Wherein, magnesium alloy is wrought magnesium alloy；Magnesium alloy sample
Surface roughness be 0.2；The granularity of nanoscale blast furnace titaniferous slag is 10nm；Lubricating oil to soak is fully synthetic lubricating oil,
And be fresh oil, acid number is 0.01mgKOH/g.
2) above-mentioned steps 1) in, the maximum stress during drawing-pressure pulsating stress load is preloaded is the 40% of yield limit, should
Power ratio is 0, and the cycle-index of preloading is 1000 cycles.
3) above-mentioned steps 1) in, make containing nanoscale blast furnace titaniferous slag in the lubricating oil of additive, nanoscale blast furnace titaniferous slag
Content is the 1.25% of quality of lubrication oil.
4) above-mentioned steps 1) in, it is used as the nanoscale blast furnace titaniferous slag used in lube oil additive, its TiO2Content be
25% (mass percent), while SiO2Content be 20% (mass percent).
The present embodiment is circulated using low stress preloads the technology that nano-material surface is repaired that combines, can be with Refining Mg Alloy
Crystal grain, improve fatigue of materials intensity, while using nanoscale blast furnace titaniferous slag to the defect on magnesium alloy materials surface or out-of-flatness at
Surface reconditioning is carried out, can effectively slow down or prevent the corrosion under magnesium alloy materials lubricating oil operating mode, greatly improve magnesium alloy material
Expect the fatigue behaviour under lubricating oil operating mode.Method is simple and easy to apply, and overall technology, economic advantages are fairly obvious.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (5)
1. a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour, it is characterised in that：Magnesium alloy is prepared into and is easy to
The sample of fatigue tester clamping, using fatigue tester, is used less than surrender pole under 25 DEG C of environment of room temperature to above-mentioned sample
The drawing of limit-pressure pulsating stress load is preloaded, after the completion of preloading, and sample is placed in and makees to add containing nanoscale blast furnace titaniferous slag
Plus immersion treatment is carried out in the lubricating oil of agent, immersion takes out sample after 2 to 4 hours, and sample surfaces are carried out into oil removal treatment, complete
The processing of paired magnesium alloy sample；
Described magnesium alloy is cast magnesium alloy or wrought magnesium alloy；
Described magnesium alloy sample, surface roughness is 0.8 to 0.2；
Described nanoscale blast furnace titaniferous slag, granularity is between 10nm~100nm；
Described lubricating oil is fresh oil, and acid number is less than or equal to 0.1mgKOH/g；
Described lubricating oil is any one in mineral lubricating oil, semi-synthetic lubricating oil or fully synthetic lubricating oil.
2. a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour according to claim 1, it is characterised in that：
Described uses drawing-pressure pulsating stress load less than yield limit to carry out pre-add using fatigue tester to magnesium alloy sample
Carry, magnesium alloy is cast magnesium alloy, the maximum stress in drawing-pressure pulsating stress load is the 10% to 20% of yield limit, stress
It is 5000 to 10000 cycles than the cycle-index for 0, preloading.
3. a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour according to claim 1, it is characterised in that：
Described uses drawing-pressure pulsating stress load less than yield limit to carry out pre-add using fatigue tester to magnesium alloy sample
Carry, magnesium alloy is wrought magnesium alloy, the maximum stress in drawing-pressure pulsating stress load is the 20% to 40% of yield limit, stress
It is 1000 to 10000 cycles than the cycle-index for 0, preloading.
4. a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour according to claim 1, it is characterised in that：
The described lubricating oil for making additive containing nanoscale blast furnace titaniferous slag, the content of nanoscale blast furnace titaniferous slag is quality of lubrication oil
0.5% to 1.25%.
5. a kind of new method for improving magnesium alloy lubricating oil operating mode fatigue behaviour according to claim 1, it is characterised in that：
Described nanoscale blast furnace titaniferous slag, its TiO2Content be 15%~25% (mass percent), while SiO2Content for 15%~
20% (mass percent).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081300A (en) * | 2019-05-13 | 2019-08-02 | 重庆工商大学 | A kind of dry type thin oil sealing gas cabinet inner wall restorative procedure |
| CN111411314A (en) * | 2020-05-15 | 2020-07-14 | 重庆工商大学 | Method for improving fatigue property of magnesium alloy |
| CN112779486A (en) * | 2020-12-24 | 2021-05-11 | 重庆工商大学 | Method for improving fatigue performance of magnesium alloy under asymmetric stress working condition |
| CN112877625A (en) * | 2021-01-13 | 2021-06-01 | 重庆工商大学 | Method for improving fatigue performance of magnesium alloy under acid rain working condition |
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| CN101505956A (en) * | 2006-08-28 | 2009-08-12 | 东洋钢钣株式会社 | Magnesium alloy material for molding processing, magnesium alloy molding processing product, and process for producing magnesium alloy molding processing product |
| CN102433479A (en) * | 2011-12-28 | 2012-05-02 | 东北大学 | Magnesium alloy with warm extrusion property and preparation method of magnesium alloy extrusion material |
| CN105543744A (en) * | 2015-12-15 | 2016-05-04 | 青海柴达木青元泛镁科技有限公司 | Preparation method of light unmanned plane wing with high strength and low density |
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| JPH05271996A (en) * | 1992-03-30 | 1993-10-19 | Nippon Parkerizing Co Ltd | Surface treatment of magnesium alloy material |
| CN101505956A (en) * | 2006-08-28 | 2009-08-12 | 东洋钢钣株式会社 | Magnesium alloy material for molding processing, magnesium alloy molding processing product, and process for producing magnesium alloy molding processing product |
| CN102433479A (en) * | 2011-12-28 | 2012-05-02 | 东北大学 | Magnesium alloy with warm extrusion property and preparation method of magnesium alloy extrusion material |
| CN105543744A (en) * | 2015-12-15 | 2016-05-04 | 青海柴达木青元泛镁科技有限公司 | Preparation method of light unmanned plane wing with high strength and low density |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081300A (en) * | 2019-05-13 | 2019-08-02 | 重庆工商大学 | A kind of dry type thin oil sealing gas cabinet inner wall restorative procedure |
| CN111411314A (en) * | 2020-05-15 | 2020-07-14 | 重庆工商大学 | Method for improving fatigue property of magnesium alloy |
| CN112779486A (en) * | 2020-12-24 | 2021-05-11 | 重庆工商大学 | Method for improving fatigue performance of magnesium alloy under asymmetric stress working condition |
| CN112877625A (en) * | 2021-01-13 | 2021-06-01 | 重庆工商大学 | Method for improving fatigue performance of magnesium alloy under acid rain working condition |
| CN112877625B (en) * | 2021-01-13 | 2022-03-29 | 重庆工商大学 | Method for improving fatigue performance of magnesium alloy under acid rain working condition |
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