CN106756348A - A kind of Mn Cu base high-damping alloys additives separated out with suppression α Mn and its application method - Google Patents
A kind of Mn Cu base high-damping alloys additives separated out with suppression α Mn and its application method Download PDFInfo
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- CN106756348A CN106756348A CN201611099832.9A CN201611099832A CN106756348A CN 106756348 A CN106756348 A CN 106756348A CN 201611099832 A CN201611099832 A CN 201611099832A CN 106756348 A CN106756348 A CN 106756348A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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Abstract
The invention discloses a kind of with Mn Cu base high-damping alloys additives and its application method that α Mn are separated out is suppressed, it is made up of the component of following percetage by weight：Y:2‑4%,In:1‑6%,Hf:4‑6%,Nd:8‑12%,Ce:1 8%, balance of Al.The Mn Cu alloy additions that the present invention is provided, when being added as additive when in Mn Cu alloy meltings, can improve Mn Cu alloys service life in use and reach more than 2 times.So that Mn Cu Alloyapplications are in airborne, the electronics rack in Shipborne Electronic Equipment, control panel, bracket, blower fan, silencer, during the part such as engine mission, except playing a part of vibration and noise reducing, in a long time (>8 years) there is enough damping stabilities.
Description
Technical field
The present invention relates to a kind of metal alloy technology, specifically, it is related to a kind of high damping alloy.
Background technology
The development of modern industry is maked rapid progress, and the value volume and range of product of all kinds of machineries is all towards high-power and high speed direction hair
Exhibition.But the vibration and noise problem that machinery is produced in the process of running are increasingly protruded, and cause the extensive of association area
Concern.Vibration and noise can not only reduce the service life of equipment, can also carry out noise pollution to ecological environment, serious infringement
The physical and mental health of the people.In traffic, the energy, the field such as communication and electric power, control vibration and reduction noise have become and urgently solve
Engineering problem certainly.The improvement of mechanicalness noise is not only the urgent task in labour protection and environmental protection work, is also to improve
The important solutions of mechanical product quality.
The solution such as traditional sound insulation and sound absorption, increases space and the weight of equipment.The latest development of vibration and noise reducing becomes
Gesture is started with source.The part use of vibration and noise will be produced can be absorbed vibration and the energy of vibration is converted into heat energy
Material is made, it is possible to by mechanical vibration control after just producing, reach the effect of vibration and noise reducing.Noiseless alloy is also referred to as resistance
Damping alloy.Because noiseless alloy is to meet mechanical design requirements, vibrational energy can be absorbed again, be that damping noise reduction opens new way
Footpath.Common high damping alloy has the high damping alloy of iron-based according to classification, and it is Fe-Cr-Al systems, Fe-Mn bodies to represent type
System and Fe-Si-Al systems etc.；Aluminium base high damping alloy, it is Al-Zn systems, Al-Mg systems and Al-Si systems to represent type
Deng；Manganese base high-damping alloy, the system that represents is the systems such as Mn-Cu, Mn-Fe and Mn-Ni.
In the noiseless alloy of all kinds, most promising is twin crystal type Mn-Cu base noiseless alloys.It is mainly characterized by declining
Subtract coefficient big, be only second to damping steel plate, and damping capacity frequency influence strained is smaller, while having good mechanical property
Energy.In general, Mn-Cu bases damping alloy is divided three classes according to the content of Mn:Mn alloys high, manganese content is more than 70%；In
Mn alloys, Mn contents are between 40-60%；It is low Mn alloys less than 40%.Middle Mn alloys are due to geneva body temperature after alloy quenching
Degree is below room temperature, so that there is spinodal decomposition by 400 DEG C or so annealing, so as to the Martensite temperature of alloy be carried
It is high to more than room temperature.For Mn alloys high, because martensite point is more than room temperature, thus after casting at room temperature
Possesses certain damping capacity.By subsequent 400 degree or so of heat treatment, damping capacity can be improved further, and SDC reaches
45% or so.
The Mn bases noiseless alloy high of existing unique industrialization is the M2052 alloys of Japan in the world, according to weight
The composition of the percentage alloy is Cu：22.1%, Ni：5.24%, Fe：1.93%, Mn are surplus.From 2000 later in day
This plant equipment, electronic device, precision instrument and automobile manufacture industry are used widely.The alloy combination property is fabulous, tool
There is excellent mechanical performance：Yield strength 280MPa, fracture strength 540MPa, elongation percentage 40%, elastic modelling quantity 68GPa and damping
Performance：SDC45%.
But it should be appreciated that during M2052 alloy uses, especially with temperature it is long between 50-70 DEG C when
Between use more than 4 years, stable phase α-Mn can be separated out from matrix.Except the motion for hindering crystal boundary hinders material deformation, material is improved
Outside material intensity, the significantly decline of damping capacity is also resulted in.Thus Mn-Cu Mn alloys high can use 4 in commercial Application
There is the phenomenon that damping capacity declines after year, greatly reduce the security performance that damping alloy is used.Come from commercial Application angle
Say, improve the stability of M2052 damping alloys, slow down the speed of separating out of α-Mn so as to improve the use longevity of M2052 damping alloys
Life is a Mn bases noiseless alloy problem demanding prompt solution in the design.It is contemplated that, in the near future, with vibration and noise reducing
The more engineer applieds in field are expanded, and manganese base high-damping alloy will be used widely in more structure designs.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of with the Mn-Cu bases for suppressing α-Mn precipitations
High damping alloy additive and preparation method thereof.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of Mn-Cu base high-damping alloys additive, is made up of the component of following percetage by weight：Y: 2-4%, In: 1-6%,
Hf: 4-6%, Nd: 8-12%,Ce:1-8%, balance of Al.
The Mn-Cu base high-damping alloys are Japan's M2052 manganese base high-damping alloys, and its percetage by weight composition is：Cu
22.1%, Ni 5.24%, Fe 1.93%, Mn are surplus.
The application method of above-mentioned Mn-Cu base high-damping alloys additive, comprises the following steps：Alloy is placed on vacuum sense
Answer in smelting furnace, melting is protected using ice crystal crucible and with argon gas；10 minutes are incubated at 1250 DEG C；Then alloy weight is put into
Amount fraction is the additive of 0.4-0.8% and is incubated induction melting 10 minutes, then cast in the environment of argon gas protection；Then
Heat treatment be will casting material under vacuum conditions 425 DEG C be incubated 4 hours.
It is a forming core and growth process to be separated out on crystal boundary near room temperature α-Mn, thus reduces the quantity and speed of forming core
Degree, and the growth process speed of growth is to solve effective way that Mn bases damping alloy damping capacity high declines in use
Footpath.The present invention provide Mn based alloys high smelting process additive, when the additive is added to Mn high in fusion process
When in the melt of based alloy, following effect can be produced：A () reduces the Precipitation Temperature of α-Mn, that is, reduce α-Mn and matrix fct
The equilibrium temperature of phase.B () improves the interface energy of α-Mn and matrix fct boundaries, so as to substantially reduce the core forming speed of α-Mn.
C () reduces the translational speed of α-Mn and matrix fct boundaries, so as to suppress the growth of α-Mn.
Compared with prior art, the present invention has the advantages that：
（1）The Mn-Cu alloy additions that the present invention is provided, when being added as additive when in Mn-Cu alloy meltings, Ke Yiti
Mn-Cu alloys high service life in use reaches more than 2 times.So that Mn-Cu Alloyapplications are in airborne, carrier-borne electronics
During the parts such as the electronics rack in equipment, control panel, bracket, blower fan, silencer, engine mission, except playing vibration damping drop
The effect made an uproar, in long-time use time (>8 years) there is enough damping stabilities.
（2）It is less than 80 DEG C that the present invention can be used to manufacture in temperature in use, and strain amplitude is less than 5 × 10-3Structural member simultaneously
With highly significant effectiveness in vibration suppression.
（3）The casting alloy smelting processing method is simple, and production cost is than relatively low.While damping capacity is ensured,
So that the service life of alloy is further improved, it is easy to industrialize large-scale application.
Specific embodiment
Embodiment 1：
A kind of Mn-Cu base high-damping alloys additive, its percetage by weight is：Y: 2.5%, In: 1.8%, Hf: 4.6%,
Nd: 9.3%,Ce:2.5%, balance of Al.The application method of the additive is：According to M2052 alloying ingredients（Cu：22.1%,
Ni：5.24%, Fe：1.93%, Mn are surplus）, using electric induction furnace and ice crystal crucible is used, sense in the environment of argon gas protection
Melting.In temperature, 1250 DEG C are incubated 10 minutes, are then placed in weight for the additive of M2052 alloy raw materials 0.42% and are incubated equal
Even sensing stirring 10 minutes, then casts (water-cooled swage or waterglass mould) in the environment of argon gas protection.Subsequent heat
It is processed as casting material being incubated 4 hours for 425 DEG C under vacuum conditions.The M2052 alloy mechanical properties of modifiedization of gained and resistance
Damping properties are：Yield strength 265MPa, tensile strength 532MPa, elongation percentage 42%.The use of the alloy addition, can make
The service life of M2052 alloys brings up to 10 years from current 4-5 or so, has no obvious damping capacity decay.It is completely full
The need for the existing damping alloy service life of foot.
Embodiment 2
A kind of Mn-Cu base high-damping alloys additive, its percetage by weight is：Y: 3.2%, In: 5.1%, Hf: 4.3%,
Nd: 9.7%,Ce:6.4%, balance of Al.The application method of the additive is：According to M2052 alloying ingredients（Cu：22.1%,
Ni：5.24%, Fe：1.93%, Mn are surplus）, using electric induction furnace and ice crystal crucible is used, sense in the environment of argon gas protection
Melting.In temperature, 1250 DEG C are incubated 10 minutes, are then placed in weight for the additive of M2052 alloy raw materials 0.63% and are incubated equal
Even sensing stirring 10 minutes, then casts (water-cooled swage or waterglass mould) in the environment of argon gas protection.Subsequent heat
It is processed as casting material being incubated 4 hours for 425 DEG C under vacuum conditions.The M2052 alloy mechanical properties of modifiedization of gained and resistance
Damping properties are：Yield strength 275MPa, tensile strength 562MPa, elongation percentage 39%.The use of the alloy addition, can make
The service life of M2052 alloys brings up to 10 years from current 4-5 or so, has no obvious damping capacity decay.It is completely full
The need for the existing damping alloy service life of foot.
Embodiment 3
A kind of Mn-Cu base high-damping alloys additive, its percetage by weight is：Y: 3.6%, In: 4.8%, Hf: 4.6%,
Nd: 10.5%,Ce:7.2%, balance of Al.The application method of the additive is：According to M2052 alloying ingredients（Cu：22.1%,
Ni：5.24%, Fe：1.93%, Mn are surplus）, using electric induction furnace and ice crystal crucible is used, sense in the environment of argon gas protection
Melting.In temperature, 1250 DEG C are incubated 10 minutes, are then placed in weight for the additive of M2052 alloy raw materials 0.58% and are incubated equal
Even sensing stirring 10 minutes, then casts (water-cooled swage or waterglass mould) in the environment of argon gas protection.Subsequent heat
It is processed as casting material being incubated 4 hours for 425 DEG C under vacuum conditions.The M2052 alloy mechanical properties of modifiedization of gained and resistance
Damping properties are：Yield strength 274MPa, tensile strength 568MPa, elongation percentage 41%.The use of the alloy addition, can make
The service life of M2052 alloys brings up to 10 years from current 4-5 or so, has no obvious damping capacity decay.It is completely full
The need for the existing damping alloy service life of foot.
Claims (3)
1. the Mn-Cu base high-damping alloy additives that a kind of suppression α-Mn are separated out, it is characterised in that by following percetage by weight
Component is constituted：Y: 2-4%, In: 1-6%, Hf: 4-6%, Nd: 8-12%,Ce:1-8%, balance of Al.
2. Mn-Cu base high-damping alloys additive as claimed in claim 1, it is characterised in that the Mn-Cu base high-dampings are closed
The percetage by weight of gold is constituted：Cu 22.1%, Ni 5.24%, Fe 1.93%, Mn are surplus.
3. the application method of Mn-Cu base high-damping alloys additive described in claim 1, it is characterised in that comprise the following steps：
Alloy is placed in vacuum induction melting furnace, melting is protected using ice crystal crucible and with argon gas；10 are incubated at 1250 DEG C
Minute；Then weight alloy fraction is put into for the additive of 0.4-0.8% and induction melting is incubated 10 minutes, is then protected in argon gas
Cast in the environment of shield；Subsequent heat treatment be will casting material under vacuum conditions 425 DEG C insulation 4 hours and stove it is cold.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099832.9A CN106756348A (en) | 2016-12-05 | 2016-12-05 | A kind of Mn Cu base high-damping alloys additives separated out with suppression α Mn and its application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611099832.9A CN106756348A (en) | 2016-12-05 | 2016-12-05 | A kind of Mn Cu base high-damping alloys additives separated out with suppression α Mn and its application method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07328760A (en) * | 1994-06-06 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Manufacture of high damping alloy casting |
| CN102952983A (en) * | 2012-11-28 | 2013-03-06 | 王国宁 | High-damping manganese-copper alloy material and preparation method thereof |
| CN103421981A (en) * | 2013-08-08 | 2013-12-04 | 常熟市东方特种金属材料厂 | High-damping shape memory alloy |
| CN103556020A (en) * | 2013-11-08 | 2014-02-05 | 上海汇智新材料科技有限公司 | Manganese copper-based high-damping alloy with high mechanical properties and high manganese content |
-
2016
- 2016-12-05 CN CN201611099832.9A patent/CN106756348A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07328760A (en) * | 1994-06-06 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Manufacture of high damping alloy casting |
| CN102952983A (en) * | 2012-11-28 | 2013-03-06 | 王国宁 | High-damping manganese-copper alloy material and preparation method thereof |
| CN103421981A (en) * | 2013-08-08 | 2013-12-04 | 常熟市东方特种金属材料厂 | High-damping shape memory alloy |
| CN103556020A (en) * | 2013-11-08 | 2014-02-05 | 上海汇智新材料科技有限公司 | Manganese copper-based high-damping alloy with high mechanical properties and high manganese content |
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