CN104388749A - High-strength antifriction and wearable aluminum-manganese bronze alloy - Google Patents
High-strength antifriction and wearable aluminum-manganese bronze alloy Download PDFInfo
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- CN104388749A CN104388749A CN201410788712.4A CN201410788712A CN104388749A CN 104388749 A CN104388749 A CN 104388749A CN 201410788712 A CN201410788712 A CN 201410788712A CN 104388749 A CN104388749 A CN 104388749A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/05—Alloys based on copper with manganese as the next major constituent
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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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- C22C9/01—Alloys based on copper with aluminium as the next major constituent
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Abstract
A high-strength antifriction and wearable aluminum-manganese bronze alloy is prepared by using Mn, Al, Fe, Zn, Ce, Si, B and Cu as ingredients, and performing casting, hot forging or hot rolling machine-forming; the mass percent of all elements in the high-strength antifriction and wearable aluminum-manganese bronze alloy is 8-10 percent of Mn, 8-10 percent of Al, 1.5-2.5 percent of Fe, 1.5-2.5 percent of Zn, 0.4-0.8 percent of Ce, 0-3 percent of Si, 0-0.4 percent of B and the balance of Cu. The high-strength antifriction and wearable aluminum-manganese bronze alloy overcomes the defects that babbitt metal is low in fatigue strength, and poor in heat resistance, and the adhesion resistance, the compliance, the embedded hidden performance of a copper base alloy and an aluminium base alloy are easily improved in a bad lubrication environment, solves the traditional industry problem that toxic metal such as lead and cadmium causes environmental pollution easily, has relatively high mechanical strength and carrying capacity, is suitable for manufacturing ideal high-strength antifriction and wearable material of components of a friction motion pair under the complex working conditions, such as high speed, heavy load, high temperature and corrosive mediums in industries, such as machinery, metallurgy, energy and chemical engineering, and for example, is suitable for manufacturing a sliding bearing, a worm gear pair, a sliding block, a shaft sleeve, a transmission nut and other components.
Description
Technical field
The present invention relates to a kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy.
Background technology
In the mechanical means such as existing metallurgy, the energy, mine, communications and transportation, there is all kinds of friction pair, such as: sliding surface bearing, gear, worm gear, guide rail, driving nut etc., in order to raise the efficiency, keep precision, the power loss needing minimizing to produce because of relative movement friction and wearing and tearing, require that the material of friction pair has comparatively low friction coefficient and comparatively high-wear resistance.At present, conventional antifriction metal material mainly contains Babbitt metal, copper base alloy and aluminum base alloy.Babbitt metal is a kind of traditional bearing alloy material, has good antifriction quality, and good to the conformability of axle journal, embedding Tibetan property, erosion resistance is high, to features such as the tackiness of steel and bronze are good; But the physical strength of Babbitt metal is not high, and temperature tolerance is poor, and use range is restricted, be mainly used in the occasions such as underloading, low speed and low temperature environment.The physical strength of copper base alloy and aluminum base alloy is higher, has the advantages such as good wear resistance, antifriction quality, erosion resistance and good manufacturability, is widely used in high speed, heavy-duty sliding bearing, worm gear pair, the part such as axle sleeve and driving nut.Be mostly low melting point tin, lead or cadmium as the main alloy element in the copper base alloy of antifriction material and aluminum base alloy, tin soft in friction process, lead are easily distributed on lubricate on friction surface.Improve the content of tin or lead in copper alloy and aluminium alloy, the block resistance of alloy, conformability and embedding Tibetan property increase, but fatigue resistance declines, and manufacturability worsens, and segregation phenomena increases; Secondly, mostly contain toxic metal that is plumbous or cadmium in copper base alloy and aluminum base alloy, easily produce environmental pollution; And the price of tin is more expensive, increase the production cost of alloy.
Summary of the invention
For above-mentioned situation, the object of the present invention is to provide a kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, it has higher physical strength and supporting capacity; In room temperature ~ 400, DEG C temperature range has more excellent properties of antifriction and wear resistance; And the toxic metal such as not leaded, cadmium, do not pollute the environment; Also there is excellent hot and cold formed machining performance; Its production cost is low, applied range, and easy suitability for industrialized production, is convenient to penetration and promotion, and commercial promise is wide.
To achieve these goals, a kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, comprises following component by percentage to the quality:
With
Si 0～3％
B 0～0.4％
And
Cu surplus.
In order to implementation structure, effect optimization, its further step is.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, comprises following component by percentage to the quality:
With
Si 2％
B 0.4％
And
Cu surplus.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, comprises following component by percentage to the quality:
And
Cu surplus.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its smelting temperature is 1230 ~ 1250 DEG C, and be incubated 10 ~ 15 minutes, teeming temperature is 1150 ~ 1200 DEG C; Forge hot or hot rolling initial temperature are 840 ~ 870 DEG C, and finish-forging or finishing temperature are more than 750 DEG C.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its microstructure is β-Cu
3al solid solution phase+Mn
5si
3phase.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its microstructure is β-Cu
3al single phase solid solution.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its microhardness value is higher than 309.3HV
2N, tensile strength is higher than 587MPa, and unit elongation is greater than 20.2%.
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its metal to-metal contact factor is at room temperature less than 0.27, and wear rate is lower than 1.63 × 10
-12m
3/ (N.m).
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its rubbing factor under room temperature oil lubrication is less than 0.09, and wear rate is lower than 9.92 × 10
-16m
3/ (N.m).
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, its metal to-metal contact factor at 300 DEG C is less than 0.29, and wear rate is lower than 8.26 × 10
-14m
3/ (N.m).
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy of the present invention, it adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, is shaped through founding, forge hot or hot rolling; In this alloy, the mass percentage scope of each element is: the technical scheme of Mn8 ~ 10%, Al 8 ~ 10%, Fe 1.5 ~ 2.5%, Zn 1.5 ~ 2.5%, Ce 0.4 ~ 0.8% and Si 0 ~ 3%, B 0 ~ 0.4% and Cu surplus; Which overcome that Babbitt metal fatigue strength is low, resistance toheat is poor, and easily there is the defects such as anti-bite viscosity, conformability and embedding Tibetan property increase when lubricating environment and being bad in copper base alloy and aluminum base alloy, and solve lead, cadmium toxic metal easily produces the industry conventional difficulties such as environmental pollution.
The beneficial effect that the present invention is produced compared to existing technology:
(I) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; Which overcome that Babbitt metal fatigue strength is low, resistance toheat is poor, and easily there is the defects such as anti-bite viscosity, conformability and embedding Tibetan property increase when lubricating environment and being bad in copper base alloy and aluminum base alloy, makes it to have lower metal to-metal contact factor, good anti-bite viscosity;
(II) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; Make it have the properties of antifriction and wear resistance being significantly better than ZCuSn10P1 tinbronze and ZSnSb11Cu6 Babbitt metal;
(III) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; Make it have for the friction pair material under different rotating speeds, different loads and complex working conditions;
(IV) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; Significantly improve the transmission efficiency of mechanical means, reliability, saved energy consumption, extend the work-ing life of part;
(V) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; This alloy is primarily of β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness value is higher than 350.3HV
2N, tensile strength is higher than 642MPa, and unit elongation is greater than 20.2%; It has higher intensity and properties of antifriction and wear resistance;
(VI) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; This alloy is β-Cu
3al single phase solid solution body tissue, its microhardness value is higher than 309.3HV
2N, tensile strength is higher than 587MPa, and unit elongation is greater than 30.6%; It has higher intensity and properties of antifriction and wear resistance;
(VII) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; It by adjusting the content of each alloying element component, allocates the hardness of alloy, intensity and unit elongation ensureing under good antifriction performance prerequisite, to adapt to the different requirement to the material that rubs;
(VIII) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; It has antioxidant property excellent below 650 DEG C and corrosion resistance nature;
(Ⅸ) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; It has excellent casting, forging and stamping, rolling process industrial art performance, is conducive to suitability for industrialized production;
(Ⅹ) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; It solve toxic metal such as adopting lead, cadmium and easily produce the industry conventional difficulties such as environmental pollution; Achieve the poisoning metal element such as alloy material of the present invention is not leaded, cadmium, pollution is not produced to environment;
(Ⅺ) the present invention adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, through the technical scheme that founding, forge hot or hot rolling are shaped; Wherein bullion content is low, and production cost is low, is convenient to penetration and promotion, and commercial promise is wide;
A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy of the present invention, the high-strength friction reducing abrasion resistant material that the secondary each component of fricting movement under its applicable complex working condition such as industry high speed, heavy duty, high temperature, corrosive medium such as work machinery, metallurgy, the energy, chemical industry etc. are desirable; As being used for manufacturing the component such as sliding surface bearing, worm gear pair, slide block, axle sleeve and driving nut.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the metallographic structure figure of the embodiment of the present invention 3.
Fig. 2 is the X ray diffracting spectrum of the embodiment of the present invention 3.
Fig. 3 is the metallographic structure figure of the embodiment of the present invention 6.
Fig. 4 is the X ray diffracting spectrum of the embodiment of the present invention 6.
Fig. 5 is the dry friction and wear surface topography map of the embodiment of the present invention 3.
Fig. 6 is the dry friction and wear surface topography map of the embodiment of the present invention 6.
Fig. 7 is the dry friction and wear surface topography map of contrast material ZSnSb11Cu6 Babbitt metal.
Fig. 8 is the dry friction and wear surface topography map of contrast material ZCuSn10P1 tinbronze.
Embodiment
Shown in accompanying drawing, comprehensive technical measure of the present invention and structural principle: a kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, it adopts and is made up of Mn, Al, Fe, Zn, Ce and Si, B and Cu, is shaped through founding, forge hot or hot rolling; Following each component concentration ranges is comprised by percentage to the quality: Mn8 ~ 10%, Al 8 ~ 10%, Fe 1.5 ~ 2.5%, Zn 1.5 ~ 2.5%, Ce 0.4 ~ 0.8% and Si 0 ~ 3%, B 0 ~ 0.4% and Cu surplus in this alloy; Its founding, forge hot or hot-rolled process parameter are: smelting temperature 1230 ~ 1250 DEG C, is incubated 10 ~ 15 minutes, teeming temperature 1150 ~ 1200 DEG C; Forge hot or hot rolling initial temperature 840 ~ 870 DEG C, finish-forging or finishing temperature more than 750 DEG C.
Composition graphs, table, a kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy of the present invention is β-Cu
3al single phase solid solution body tissue, alloy structure and composition more even; Mn can more be solid-solution in α-Cu mutually in, improve the alloying level of α-Cu phase, produce solution strengthening; Mn can reduce again the solid solubility of Al in α-Cu phase simultaneously, can stablize β phase, postpones, even stops eutectoid transformation (β → α+γ
2) generation; Test shows, the Mn-Al-Ni bronze of Al content below 3.5% is the tissue of α-Cu single phase solid solution, and plasticity is good, is easy to carry out cold and hot working; But the hardness of alloy is low, tensile strength is not high; Al content is the two-phase structure of alpha+beta at the Mn-Al-Ni bronze of 3.5 ~ 6% scopes, and the quantity of the β phase in tissue increases with the raising of Al content, and now intensity increases and plasticity reduction; After Al content is greater than 6%, Mn-Al-Ni bronze tissue is all β single phase solid solution body tissue, and β phase is with electron compound Cu
3al is the sosoloid of base, and body-centered cubic crystal structure has higher mechanical property and plastic deformation ability, particularly thermoplasticity good, can carry out thermal processing distortion; Be that Mn-Al-Ni bronze in 6 ~ 10% scopes shows excellent properties of antifriction and wear resistance at Al content; Al content more than 10% after, Mn-Al-Ni bronze is β+γ
2two-phase structure, due to γ
2with electron compound Cu
32al
19for the sosoloid of base, complicated cubic structure, there is larger fragility, Mn-Al-Ni bronze plasticity is significantly reduced; When occurring thick γ in alloy
2time, Mn-Al-Ni bronze will seriously become fragile; Frictional wear is analyzed and is shown, α single phase structure, alpha+beta or β+γ
2the properties of antifriction and wear resistance of the Mn-Al-Ni bronze of two-phase structure is all poor, and the Mn-Al-Ni bronze of β single phase structure shows excellent properties of antifriction and wear resistance.
According to Cu-Si binary phase diagram, the solid solubility of Si in α-Cu reaches 8.5%, but due to Mn content in Mn-Al-Ni bronze of the present invention more, Mn and Si easily forms Mn
5si
3deng intermetallic compound; Therefore, the solid solubility of Si in α-Cu is less, mainly with Mn
5si
3equivalent forms exists; Work as Mn
5si
3be distributed in α-Cu with fine particle size, can greatly put forward heavy alloyed mechanical property; Hot and cold forming property containing Si Mn-Al-Ni bronze is good, and can improve cutting ability and the welding property of alloy; Si can not produce deleterious effect to the antifriction quality of Mn-Al-Ni bronze, and its wear resistance is significantly improved; Si is generally no more than 3% at the content of Mn-Al-Ni bronze, otherwise, the Mn in tissue
5si
3quantity Deng intermetallic compound increases, size increases, and alloy becomes fragile.
Adding a small amount of Fe can thinning microstructure structure, carries heavy alloyed mechanical property and wear resisting property, but when Fe too high levels, can form too much Fe-riched phase, fall low-alloyed corrosion resisting property and processing performance, and the fragility of alloy increases; Add a small amount of Zn to be conducive to putting forward heavy alloyed mobility, improve its castability; Add the effect that micro-Ce, B have crystal grain thinning, mechanical property and the pressure machining characteristics of alloy are useful; Also be conducive to the tribological property improving alloy surface simultaneously, reduce the rubbing factor of material; After alloy forge hot, hot rolling, weave construction is finer and close, and composition is homogenizing more, the raising corresponding to friction and wear behavior of the mechanical property of alloy.
The wear surface of anti-friction wear-resistant Mn-Al-Ni bronze alloy of the present invention is smooth, and wear scar width is little, does not occur crackle and ditch dug with a plow, only produces less viscous deformation and the abrasive dust of trace in friction process, shows the ability of excellent antistick and antifatigue wearing and tearing.The wear surface of contrast material ZSnSb11Cu6 Babbitt metal creates significant viscous deformation, has occurred darker mill hole and localized cracks, the ability of the supporting capacity of Babbitt metal and antifatigue wearing and tearing; The wear surface of contrast material ZCuSn10P1 tinbronze creates serious adhesive coating, and wear scar width is comparatively large, and thus properties of antifriction and wear resistance is not ideal enough.
Embodiment 1
By raw material by mass percentage: Mn 8%, Al 8%, Fe2.5%, Zn2.5%, Ce0.6%, surplus Cu prepares burden, melting in vacuum induction furnace, smelting temperature is 1230 DEG C, be incubated 10 minutes, then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1150 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is β-Cu
3al single phase solid solution body tissue, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 2
By raw material by mass percentage: Mn 8.5%, Al 8.5%, Fe2%, Si0.5%, Zn2%, Ce0.5%, B 0.1%, surplus Cu prepares burden; Melting in vacuum induction furnace, smelting temperature is 1240 DEG C, is incubated 10 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1160 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is β-Cu
3al single phase solid solution body tissue, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 3
By raw material by mass percentage: Mn 9%, Al 9%, Fe2%, Zn2%, Ce0.7%, surplus Cu prepares burden; Melting in vacuum induction furnace, smelting temperature is 1240 DEG C, is incubated 12 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1170 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is β-Cu
3al single phase solid solution body tissue, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 4
By raw material by mass percentage: Mn 9.5%, Al9.5%, Fe2.5%, Si 1%, Zn2%, Ce0.6%, B 0.2%, surplus Cu prepares burden, melting in vacuum induction furnace; Smelting temperature is 1250 DEG C, is incubated 14 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1180 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 5
By raw material by mass percentage: Mn 10%, Al 10%, Fe2%, Si 1.5%, Zn2.5%, Ce0.7%, B 0.3%, surplus Cu prepares burden, melting in vacuum induction furnace; Smelting temperature is 1250 DEG C, is incubated 15 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1200 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 6
By raw material by mass percentage: Mn 10%, Al9%, Fe2.5%, Si 2%, Zn2%, Ce0.4%, B 0.4%, surplus Cu prepares burden, melting in vacuum induction furnace; Smelting temperature is 1245 DEG C, is incubated 14 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1190 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 7
By raw material by mass percentage: Mn 9%, Al 10%, Fe 2%, Si 2.5%, Zn 2%, Ce 0.5%, B 0.2%, surplus Cu prepares burden, melting in vacuum induction furnace; Smelting temperature is 1240 DEG C, is incubated 14 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1185 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 8
By raw material by mass percentage: Mn 10%, Al 10%, Fe2%, Si3%, Zn2%, Ce0.6%, B 0.3%, surplus Cu prepares burden, melting in vacuum induction furnace; Smelting temperature is 1245 DEG C, is incubated 15 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1195 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; This alloy is by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 9
By raw material by mass percentage: Mn 9.5%, Al9%, Fe2%, Si 2%, Zn2%, Ce0.5%, B 0.3%, surplus Cu prepares burden, melting in vacuum induction furnace; Smelting temperature is 1240 DEG C, is incubated 13 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1180 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; Carry out forging and stamping processing to ingot casting, heating initial temperature is 850 DEG C, is incubated 12 minutes; Final forging temperature is more than 750 DEG C; The pole of forging ' s block dimension to be diameter be 20mm; This alloy is by by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Embodiment 10
By raw material by mass percentage: Mn 9%, Al9.5%, Fe2%, Si 2%, Zn2%, Ce0.6%, B 0.2%, surplus Cu prepares burden; Melting in vacuum induction furnace, smelting temperature is 1250 DEG C, is incubated 14 minutes; Then, be that to be poured into diameter be in the graphite mo(u)ld of 40mm for the aluminium alloy of 1190 DEG C by teeming temperature, it is the circular ingot of 40mm that naturally cooling obtains diameter; Carry out hot rolling to ingot casting, heating initial temperature is 860 DEG C, and be incubated 15 minutes, finishing temperature is more than 750 DEG C; Hot-rolled sheet is of a size of thickness 5mm sheet material; This alloy is by by β-Cu
3al solid solution phase and Mn
5si
3phase composite, its microhardness, tensile strength and unit elongation numerical value are in table 2; Its friction and wear behavior is in table 3.
Subordinate list illustrates:
The one-tenth that table 1 is embodiment of the present invention 1-10 is grouped into and machining state.
Table 2 is the microhardness of embodiment of the present invention 1-10, tensile strength and unit elongation.
Table 3 is the friction and wear behavior of embodiment of the present invention 1-10.
The test conditions that in table 3, each data use illustrates: frictional wear experiment adopts high speed reciprocating friction wear testing machine, to the auxiliary material that rubs for the GCr15 steel ball that hardens, and hardness 62HRC, diameter 4mm; Load 20N, rotating speed 900r/min, moves back and forth distance 5mm, experimental period 20min.Wear volume adopts the double mode three-dimensional surface profile instrument of NanoMap 500-LS to measure.
Table 1
Table 2
| Embodiment | Microhardness (HV 2N) | Tensile strength (MPa) | Unit elongation (%) |
| 1 | 309.3 | 587 | 30.6 |
| 2 | 350.3 | 642 | 29.2 |
| 3 | 330.2 | 615 | 30.8 |
| 4 | 403.1 | 674 | 27.8 |
| 5 | 436.5 | 695 | 26.9 |
| 6 | 467.8 | 723 | 24.6 |
| 7 | 483.6 | 748 | 22.5 |
| 8 | 504.5 | 776 | 20.2 |
| 9 | 526.4 | 788 | 22.4 |
| 10 | 519.3 | 782 | 21.6 |
Table 3
Claims (10)
1. a high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, is characterized in that, comprise following component by percentage to the quality:
With
Si 0～3％
B 0～0.4％
And
Cu surplus.
2. one according to claim 1 high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, is characterized in that, comprises following component by percentage to the quality:
With
Si 2％
B 0.4％
And
Cu surplus.
3. the one high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy according to claim 1,2, is characterized in that, comprise following component by percentage to the quality:
And
Cu surplus.
4. one according to claims 1 to 3 high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, is characterized in that its smelting temperature is 1230 ~ 1250 DEG C, and be incubated 10 ~ 15 minutes, teeming temperature is 1150 ~ 1200 DEG C; Forge hot or hot rolling initial temperature are 840 ~ 870 DEG C, and finish-forging or finishing temperature are more than 750 DEG C.
5. the one high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy according to claim 1,2, is characterized in that its microstructure is β-Cu
3al solid solution phase+Mn
5si
3phase.
6. the one high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy according to claim 1,3, is characterized in that its microstructure is β-Cu
3al single phase solid solution.
7. one according to claims 1 to 4 high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, is characterized in that its microhardness value is higher than 309.3HV
2N, tensile strength is higher than 587MPa, and unit elongation is greater than 20.2%.
8. one according to claims 1 to 4 high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, it is characterized in that its metal to-metal contact factor is at room temperature less than 0.27, wear rate is lower than 1.63 × 10
-12m
3/ (N.m).
9. one according to claims 1 to 4 high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, it is characterized in that its rubbing factor under room temperature oil lubrication is less than 0.09, wear rate is lower than 9.92 × 10
-16m
3/ (N.m).
10. one according to claims 1 to 4 high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy, it is characterized in that its metal to-metal contact factor at 300 DEG C is less than 0.29, wear rate is lower than 8.26 × 10
-14m
3/ (N.m).
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| CN201410788712.4A CN104388749B (en) | 2014-12-17 | 2014-12-17 | A kind of high-strength anti-friction wear-resistant Mn-Al-Ni bronze alloy |
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| CN104388749B CN104388749B (en) | 2016-07-06 |
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Cited By (5)
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| CN105838917A (en) * | 2015-06-02 | 2016-08-10 | 余锦芳 | High-wear-resistance generator shaft sleeve |
| CN109321778A (en) * | 2018-11-21 | 2019-02-12 | 中国兵器科学研究院宁波分院 | A kind of wear-resisting aluminium bronze and preparation method thereof containing rare earth |
| CN110039154A (en) * | 2019-04-08 | 2019-07-23 | 东南大学 | Copper-steel composite material and its electric arc increase material preparation method, application and tin bronze alloys |
| CN113234957A (en) * | 2021-04-27 | 2021-08-10 | 中机智能装备创新研究院(宁波)有限公司 | Copper alloy welding wire, preparation method and application |
| CN114480911A (en) * | 2021-12-17 | 2022-05-13 | 洛阳双瑞特种装备有限公司 | High-forgeability manganese-aluminum-iron bronze alloy and smelting method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838917A (en) * | 2015-06-02 | 2016-08-10 | 余锦芳 | High-wear-resistance generator shaft sleeve |
| CN105838917B (en) * | 2015-06-02 | 2017-12-12 | 盐城中咏投资发展有限公司 | A kind of high-wearing feature generator axle sleeve |
| CN109321778A (en) * | 2018-11-21 | 2019-02-12 | 中国兵器科学研究院宁波分院 | A kind of wear-resisting aluminium bronze and preparation method thereof containing rare earth |
| CN110039154A (en) * | 2019-04-08 | 2019-07-23 | 东南大学 | Copper-steel composite material and its electric arc increase material preparation method, application and tin bronze alloys |
| CN110039154B (en) * | 2019-04-08 | 2021-04-27 | 东南大学 | Copper-steel composite material, electric arc additive preparation method and application thereof, and tin bronze alloy |
| CN113234957A (en) * | 2021-04-27 | 2021-08-10 | 中机智能装备创新研究院(宁波)有限公司 | Copper alloy welding wire, preparation method and application |
| CN113234957B (en) * | 2021-04-27 | 2022-04-01 | 中机智能装备创新研究院(宁波)有限公司 | Copper alloy welding wire, preparation method and application |
| CN114480911A (en) * | 2021-12-17 | 2022-05-13 | 洛阳双瑞特种装备有限公司 | High-forgeability manganese-aluminum-iron bronze alloy and smelting method |
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