CN103469119A - Amorphous composite materials, and preparation method and applications thereof - Google Patents
Amorphous composite materials, and preparation method and applications thereof Download PDFInfo
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Abstract
The invention belongs to the field of metal amorphous composite materials, and discloses amorphous composite materials, and a preparation method and applications thereof. The amorphous composite materials comprise nickel, zirconium, titanium, niobium, aluminum and copper with a nickel-based amorphous phase as a matrix phase and beta-Ti and (Cu,Ni) Ti2 as reinforcing phases, and comprise the specific components according to the atomic percentage: 30-59 at.% of Ni, 10-24 at.% of Zr, 10-35 at.% of Ti, 7-10 at.% of Nb, 3-7 at.% of Al, 1-3 at.% of Cu, and the balance being inevitable trace impurities. The amorphous composite materials are prepared by rapidly sintering a nickel-based amorphous powder and a titanium-based amorphous powder. With control of the addition amount of the nickel-based amorphous powder, the amorphous composite materials with different amorphous phase content can be obtained. The amorphous composite materials are nearly fully dense, and can be applied in the fields of aeronautics and astronautics, military industry and the like.
Description
Technical field
The invention belongs to the amorphous metal field of compound material, particularly a kind of amorphous composite and its preparation method and application.
Background technology
Bulk amorphous alloys has the good mechanical properties such as high strength, high rigidity, high elastic coefficient, but because lower plasticity has limited its application as structured material.The amorphous bulk matrix material is bred the plasticity that can have raising because dislocation is subject to the retardance of second-phase.Simultaneously, the amorphous bulk matrix material has the excellent over-all propertieies such as high strength, high rigidity, high elastic coefficient, corrosion-resistant and abradability, thereby is with a wide range of applications in fields such as aerospace, electronics, instruments.The Second Phase Particle of exploitation different scale and the amorphous bulk matrix material that noncrystal substrate coexists have become the target that the investigator pursues.
In the mechanical property of amorphous composite and its tissue character, yardstick, distribution and the relative content of amorphous and wild phase have close contacting (D.C.Hofmann, J.Y.Suh, A.Wiest, et al.Nature., 2008,451,1085-1089.).At present, the amorphous bulk matrix material developed is mainly standby by the melt solidifying legal system, different according to noncrystal substrate and second-phase character, can be divided into following several types: (1) additional refractory metal or ceramic particle make shear zone breed to improve the plasticity (H.C.Yim of amorphous composite in noncrystal substrate, R.Busch
et al.Acta Mater, 1999,47 (8): 2455-2462.).(2) by J.W.Qiao(Appl.Phys.Lett., 2009,94:151905.) etc. report pass through well-designed alloying constituent and controls the amorphous composite of living nanocrystalline in the curing condition preparation of alloy melt or Ultra-fine Grained.(3) obtaining structure by the melt solidifying method is the iron-based (S.F.Guo that ductility phase (α-Fe, β-Ti or β-Zr) dentrite is uniformly distributed in noncrystal substrate, has high strength and good plasticity, L.Liu, N.Li, et al.Scripta Materialia, 2010,62:329-33.), titanium base (He G, Eckert J
w, et al.Mater Res Symp, 2003,754:327-332.) and zirconium base (K ü hn U, Eckert J, Mattern N, et al.Appl.Phys.Lett., 2002,80 (14): 2478-2481.) amorphous composite.(4) selected alloying constituent, under melt rapid condensation condition, make Ni-based amorphous reach that phase is separated and form the two-phase amorphous special construction (N.Mattern, U.K ü hn, A.Geber., et al.Scripta Materialia, 2005,53:271-274.).Yet, the standby amorphous bulk matrix material of melt solidifying legal system is limited by alloying constituent and curing condition, determined that (diameter is generally less than 5mm to the extremely limited size of these amorphous composites, be generally 2～4mm) and the uncontrollability of content of amorphous, make it be difficult to meet the application requiring as engineering materials.
As a kind of alternative material forming method, mechanical alloying can be synthesized the amorphous powdered alloy with wide supercooling liquid phase region, difference based on different system amorphous powdered alloy supercooling liquid phase region, utilize mechanical alloying to add a kind of method that powder consolidation techniques (comprising extruding, hot pressing and discharge plasma sintering) subsequently is feasible amorphous composite for preparing the block controlled content of amorphous of large-size.Yet, mostly can not control content of amorphous and the wild phase particle is thick in the amorphous bulk matrix material of having developed, fail to obtain the amorphous bulk matrix material of the nanocrystalline and controlled content of amorphous of interior life.
Therefore, if can be by selecting suitable two-phase amorphous alloy component and content, accurately control the sintering process such as sintering temperature, utilize the difference of two-phase amorphous powdered alloy supercooling liquid phase region temperature, making wherein a kind of non-crystaline amorphous metal reservation non-crystal structure is that the nanoscale crystal is as the wild phase particle as matrix, another kind of amorphous alloy crystallization, obtain amorphous and nanocrystallinely coexist, large size (the structural part diameter is not less than 20mm) amorphous composite that content of amorphous is controlled, will there is very important Research Significance.So far, there is no and adopt powder metallurgy technology and Amorphous Crystallization method to be produced the bibliographical information of the amorphous composite of controlled content of amorphous by the two-phase amorphous powdered alloy.
Summary of the invention
For the shortcoming and deficiency that overcome above-mentioned prior art, primary and foremost purpose of the present invention is to provide a kind of amorphous composite.
Another purpose of the present invention is to provide a kind of preparation method of above-mentioned amorphous composite.
Still a further object of the present invention is to provide the application of above-mentioned amorphous composite in space flight and aviation, military project.
Purpose of the present invention realizes by following proposal:
A kind of amorphous composite, contain nickel, zirconium, titanium, niobium, aluminium and copper, and its microtexture be take Ni-based amorphous phase as matrix phase, with β-Ti and (Cu, Ni) Ti
2for wild phase, concrete component and counting by atom percentage content: Ni 30～59at.%, Zr 10～24at.%, Ti 10～35at.%, Nb 7～10at.%, Al 3～7at.%, Cu 1～3at.%, all the other are inevitable trace impurity.
The preparation method of above-mentioned amorphous composite: described amorphous composite is formed through Fast Sintering by Ni-based amorphous powder and titanium-based amorphous powder.
Described Fast Sintering comprises at least one in the powder sintering method of extruding, hot pressing and discharge plasma sintering.
The concrete component of described Ni-based amorphous powder and counting by atom percentage content: Ni 55～59at.%, Zr 20～24at.%, Ti 6.0～10at.%, Nb 6.0～10at.%, Al 3.0～7.0at.%.
The concrete component of described titanium-based amorphous powder and counting by atom percentage content: Ti 64～68at.%, Nb 8～18at.%, Cu 6.0～10.5at.%, Ni 5.5～8.0at.%, Al 3.0～7.0at.%, all the other are inevitable trace impurity.
The consumption of described Ni-based amorphous powder by volume per-cent is 50～99%.
Specifically comprise following steps:
Step 1: high-energy ball milling prepares amorphous powder
Ni-based amorphous powder and titanium-based amorphous powder are carried out respectively to high-energy ball milling, until two kinds of alloy systems form the amorphous alloy powders with wide supercooling liquid phase region, two kinds of amorphous powders at least reach 95% by its volume percent amorphous phase separately.
Step 2: pulse electric current sintering amorphous powder
Ni-based amorphous powder after ball milling and titanium-based amorphous powder are mixed, the two-phase amorphous powder that adopts the pulsed current Fast Sintering to pack in sintering mold, the accuracy controlling sintering parameter, adopt the high pressure low temperature sintering, and the pulse electric current sintering processing condition are as follows:
Agglomerating plant: discharge plasma sintering system
Sintering current type: pulsed current
Crystallization temperature-the 20K of sintering temperature Ts:Ts >=titanium-based amorphous powder
The glass transformation temperature of Ts≤Ni-based amorphous powder
Soaking time: 10～20min
Temperature rise rate: 10～50K/min
Sintering pressure: 400～500MPa;
Obtain in microtexture and take Ni-based amorphous phase as matrix phase through sintering, with β-Ti and (Cu, Ni) Ti
2nanocrystalline is the amorphous composite of wild phase.
The concrete component of Ni-based amorphous powder described in step 1 and counting by atom percentage content: Ni 55～59at.%, Zr 20～24at.%, Ti 6.0～10at.%, Nb 6.0～10at.%, Al 3.0～7.0at.%.
The concrete component of titanium-based amorphous powder described in step 1 and counting by atom percentage content: Ti 64～68at.%, Nb 8～18at.%, Cu 6.0～10.5at.%, Ni 5.5～8.0at.%, Al 3.0～7.0at.%, all the other are inevitable trace impurity.
Described Ni-based amorphous powder and titanium-based amorphous powder are dry mixed respectively to evenly before high-energy ball milling in mixed powder machine.
The content of the Ni-based amorphous powder that the Ni-based amorphous content of described amorphous composite can drop into by control is controlled.
Sintering mold described in step 3 refers to tungsten carbide die.
By accurate control sintering temperature, utilize the difference of the supercooling liquid phase region of Ni-based and titanium-based amorphous alloy powder, realize not crystallization of Ni-based amorphous powder, retain Ni-based amorphous phase; Titanium-based amorphous powder crystallization obtains nanocrystalline.Adjust volume percent Ni-based and titanium-based amorphous powder and control the Ni-based amorphous content in metallic glass composite, in the material of preparation, Ni-based amorphous content is 50～99at.%.
Above-mentioned amorphous composite can be applied in space flight and aviation, military project.
Mechanism of the present invention is:
Preparation method's of the present invention principle is: the pulse electric current sintering technology has advantages of that heating rate is fast, sintering temperature is low, sintering time is short; The multicomponent amorphous alloy powder has superplasticity and lower viscosity in supercooling liquid phase region.The alloying constituent of the present invention's design, Ni-based and the titanium-based amorphous state powdered alloy that there is wide supercooling liquid phase region through the high-energy ball milling preparation, characteristic based on Ni-based amorphous supercooling liquid phase region far above titanium-based amorphous supercooling liquid phase region, utilize the pulse electric current sintering technology to make amorphous alloy powder quick densifying shaping in the supercooling liquid phase region of titanium-based amorphous powder under pressure, then utilize the Amorphous Crystallization method, make titanium-based amorphous in intensification sintering process subsequently complete crystallization change nanocrystalline or ultra-fine grained structure into.Simultaneously, guarantee sintering temperature lower than the glass transformation temperature of ni-based amorphous alloy to retain Ni-based noncrystal substrate.In addition, control Ni-based noncrystal substrate in metallic glass composite and the content of titanium base Crystallization Phases by the volume percent of adjusting Ni-based and titanium-based amorphous powder, wherein Ni-based amorphous powder volume percent is not less than 50% to guarantee forming noncrystal substrate after sintering, titanium-based amorphous powder volume per-cent not higher than 50% to form the crystallization wild phase.By accurate control sintering temperature, sintering pressure, heating rate and soaking time, control the nucleation and growth process of amorphous phase, can obtain β-Ti and (Cu, Ni) Ti after large-size, that content of amorphous is controlled, crystallization
2the nanocrystalline metallic glass composite that is uniformly distributed in noncrystal substrate.The present invention utilizes the difference of the supercooling liquid phase region of Ni-based and titanium-based amorphous alloy powder, thus utilize Fast Sintering realize Ni-based amorphous powder not crystallization retain the preparation that noncrystal substrate, titanium-based amorphous powder crystallization obtain having the metallic glass composite of controlled content of amorphous.
The present invention has following advantage and beneficial effect with respect to prior art:
(1) manufacturing process that pulse electric current sintering technology of the present invention and Amorphous Crystallization method combine, the course of processing is simple, easy to operate, and lumber recovery is high, save material and near-net forming; Simultaneously, composite inner interface cleanness and second-phase crystal grain can be controlled in nanocrystalline size.The amount of the Ni-based amorphous powder added by control, can obtain the amorphous composite of different amorphous content.
(2) preparation method of the present invention contributes to obtain the Multi-scale model material, and the preparation method of the controlled amorphous composite of a kind of content of amorphous is provided, and the amorphous bulk based composites of preparation is near complete fine and close, has β-Ti and (Cu, Ni) Ti
2the nanocrystalline microtexture that is uniformly distributed in Ni-based noncrystal substrate.
(3) the pulse electric current sintering technology adopted due to the present invention has the advantages such as sintering temperature is low, soaking time is short, heating rate is fast, and there is the distinctive feature of superplasticity and viscous rheological behaviour in the multicomponent amorphous alloy powder supercooling liquid phase region wide at it, therefore, preparation method of the present invention has concentrated the advantage of material forming method and unique physical property of amorphous powdered alloy.
(4) amorphous composite of the present invention can be prepared into the large-size bulk material, and its comprehensive mechanical property is good, and diameter is greater than 30mm, substantially meets the application requiring of some peculiar part, in fields such as aerospace, military projects, has popularizing application prospect widely.
The accompanying drawing explanation
The transmission electron microscope picture that Fig. 1 is the amorphous composite for preparing of embodiment 1, wherein, A is the Ni-based amorphous phase of matrix phase, B is wild phase (Cu, Ni) Ti
2, C is wild phase β-Ti.
The transmission electron microscope picture that Fig. 2 is the Ni-based amorphous phase of amorphous composite matrix phase for preparing of embodiment 1.
Fig. 3 is amorphous composite wild phase (Cu, the Ni) Ti that embodiment 1 prepares
2and the transmission electron microscope picture of β-Ti.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1: the preparation of amorphous composite
Step 1: mixed powder
Ni-based amorphous powder and titanium-based amorphous powder are respectively by following element and atomic percent consumption batching thereof, Ni-based amorphous powder: Ni 57at.%, Zr 22at.%, Ti 8at.%, Nb 8at.%, Al 5at.%; Titanium-based amorphous powder: Ti 66at.%, Nb 13at.%, Cu 8at.%, Ni 6.8at.%, Al 6.2at.%, all the other are inevitable trace impurity.Nickel, titanium, zirconium, niobium, copper and aluminium all add with the form of simple substance, and wherein, the average particle size particle size of each element powder all is about 50 μ m, and except the purity of aluminium is 99.0wt.%, the purity of all the other particle powders is all higher than 99.9wt.%.Then, mixed powder is dry mixed to 24h respectively in the mixed powder machine of V-0.002 type.
Step 2: high-energy ball milling prepares amorphous powder
Adopt QM-2SP20 type planetary ball mill to carry out high-energy ball milling, abrading-ball and ball grinder inwall material all adopt stainless steel, and ball material mass ratio is 10:1, fills high-purity argon gas during ball milling in ball grinder as protective atmosphere, and rotational speed of ball-mill is 3.8s
-1, Ni-based and titanium base alloy powder is placed in respectively different ball grinder ball millings.Ni-based and titanium-based amorphous powder Ball-milling Time is respectively 35h and 80h.Complete high-energy ball milling by detection, in two kinds of amorphous powders, the volume fraction of amorphous phase is more than 95%; In heating rate, be under 20K/min, the glass transformation temperature 807K of the Ni-based amorphous powder of preparation, crystallization temperature are 870K, and the supercooling liquid phase region width is 63K; The glass transformation temperature 715K of titanium-based amorphous powder, crystallization temperature are 799K, and the supercooling liquid phase region width is 84K.
Step 3: pulse electric current sintering amorphous powder
By the Ni-based and titanium-based amorphous powder after high-energy ball milling by volume per-cent 6:4 mix, getting 20g mixing amorphous powder packs in the wolfram varbide sintering mold that diameter is Φ 20mm, to 500MPa, be evacuated down to 4Pa by the first precompressed amorphous powder of positive and negative wolfram varbide electrode, then applying argon gas protection; Agglomerating plant and processing condition are as follows:
Agglomerating plant: Dr.Sintering SPS-825 discharge plasma sintering system
Sintering current type: pulsed current
The dutycycle of pulsed current: 12:2
Sintering temperature Ts:779K
Sintering time: with 10K/min, from room temperature, be warmed up to 779K, be incubated 20 minutes
Sintering pressure: 500MPa,
Powder is carried out to the cryogenic high pressure sintering, and in resistance sintering and process of cooling, pressure remains at 500MPa, the controlled amorphous composite of content of amorphous that can to obtain diameter be Φ 20mm.Detect and show (seeing Fig. 1～3) through scanning electronic microscope, amorphous composite inside does not comprise obvious visible hole, reaches near complete fine and close, and its density is 98.6%, and room temperature hardness is 697HV.Transmission electron microscope photo as shown in Figures 1 to 3, illustrate that its structure take β-Ti and (Cu, Ni) Ti that Ni-based amorphous phase is 25～35nm as matrix phase, the grain-size separated out
2for wild phase, the amorphous volume content is about 60%.
Embodiment 2: the preparation of amorphous composite
Step 1: mixed powder
At first Ni-based amorphous powder and titanium-based amorphous powder are respectively by following element and atomic percent consumption batching thereof, Ni-based amorphous powder: Ni 57at.%, Zr 22at.%, Ti 8at.%, Nb 8at.%, Al 5at.%; Titanium-based amorphous powder: Ti 66at.%, Nb 13at.%, Cu 8at.%, Ni 6.8at.%, Al 6.2at.%, all the other are inevitable trace impurity.Nickel, titanium, zirconium, niobium, copper and aluminium all add with the form of simple substance, and wherein, the average particle size particle size of each element powder all is about 50 μ m, and except the purity of aluminium is 99.0wt.%, the purity of all the other particle powders is all higher than 99.9wt.%.Then, mixed powder is dry mixed to 24h respectively in the mixed powder machine of V-0.002 type.
Step 2: high-energy ball milling prepares amorphous powder
Adopt QM-2SP20 type planetary ball mill to carry out high-energy ball milling, abrading-ball and ball grinder inwall material all adopt stainless steel, and ball material mass ratio is 10:1, fills high-purity argon gas during ball milling in ball grinder as protective atmosphere, and rotational speed of ball-mill is 3.8s
-1, Ni-based and titanium-based amorphous powder is placed in respectively different ball grinder ball millings.Ball-milling Time Ni-based and titanium-based amorphous powder is respectively 35h and 80h.Complete high-energy ball milling by detection, in two kinds of amorphous powders, the volume fraction of amorphous phase is more than 95%; In heating rate, be under 20K/min, the glass transformation temperature 807K of the Ni-based amorphous powder of preparation, crystallization temperature are 870K, and the supercooling liquid phase region width is 63K; The glass transformation temperature 715K of titanium-based amorphous powder, crystallization temperature are 799K, and the supercooling liquid phase region width is 84K.
Step 3: pulse electric current sintering amorphous powder
By the Ni-based and titanium-based amorphous powder after high-energy ball milling by volume per-cent 5:5 mix, getting 20g mixing amorphous powder packs in the wolfram varbide sintering mold that diameter is Φ 20mm, to 445MPa, be evacuated down to 4Pa by the first precompressed amorphous powder of positive and negative wolfram varbide electrode, then applying argon gas protection; Agglomerating plant and processing condition are as follows:
Agglomerating plant: Dr.Sintering SPS-825 discharge plasma sintering system
Sintering current type: pulsed current
The dutycycle of pulsed current: 12:2
Sintering temperature Ts:807K
Sintering time: with 40K/min, from room temperature, be warmed up to 807K, be incubated 15 minutes
Sintering pressure: 445MPa,
Powder is carried out to the cryogenic high pressure sintering, and in resistance sintering and process of cooling, pressure remains at 445MPa, the amorphous composite of the controlled content of amorphous that can to obtain diameter be Φ 20mm.Detect and show through scanning electronic microscope, amorphous composite inside does not comprise obvious visible hole, has reached near complete fine and close, its density is 99.3%, room temperature hardness is 772HV, and microtexture is that Ni-based amorphous phase is matrix phase, β-Ti and (Cu, Ni) Ti of separating out
2nanocrystalline is wild phase, and the amorphous volume content is about 50%.
Embodiment 3: the preparation of amorphous composite
Step 1: mixed powder
Ni-based amorphous powder and titanium-based amorphous powder are respectively by following element and atomic percent consumption batching thereof, Ni-based amorphous powder: Ni 59at.%, Zr 20at.%, Ti 10at.%, Nb 7at.%, Al 4at.%; Titanium-based amorphous powder: Ti 66at.%, Nb 18at.%, Cu 6.0at.%, Ni 6.5at.%, Al 3.5at.%, all the other are inevitable trace impurity.Nickel, titanium, zirconium, niobium, copper and aluminium all add with the form of simple substance, and wherein, the average particle size particle size of each element powder all is about 50 μ m, and except the purity of aluminium is 99.0wt.%, the purity of all the other particle powders is all higher than 99.9wt.%.Then, mixed powder is dry mixed to 24h respectively in the mixed powder machine of V-0.002 type.
Step 2: high-energy ball milling prepares amorphous powder
Adopt QM-2SP20 type planetary ball mill to complete high-energy ball milling, abrading-ball and ball grinder inwall material all adopt stainless steel, and ball material mass ratio is 10:1, fills high-purity argon gas during ball milling in ball grinder as protective atmosphere, and rotational speed of ball-mill is 3.8s
-1, Ni-based and titanium-based amorphous powder is placed in respectively different ball grinder ball millings.Ball-milling Time Ni-based and titanium-based amorphous powder is respectively 40h and 75h.Complete high-energy ball milling by detection, in two kinds of amorphous powders, the volume fraction of amorphous phase is more than 95%; In heating rate, be under 20K/min, the glass transformation temperature 809K of the Ni-based amorphous powder of preparation, crystallization temperature are 873K, and the supercooling liquid phase region width is 64K; The glass transformation temperature 718K of titanium-based amorphous powder, crystallization temperature are 802K, and the supercooling liquid phase region width is 84K.
Step 3: pulse electric current sintering amorphous powder
By the Ni-based and titanium-based amorphous powder after high-energy ball milling by volume per-cent than 9:1, mix, getting 20g mixing amorphous powder packs in the wolfram varbide sintering mold that diameter is Φ 20mm, to 400MPa, be evacuated down to 4Pa by the first precompressed amorphous powder of positive and negative wolfram varbide electrode, then applying argon gas protection; Agglomerating plant and processing condition are as follows:
Agglomerating plant: Dr.Sintering SPS-825 discharge plasma sintering system
Sintering current type: pulsed current
The dutycycle of pulsed current: 12:2
Sintering temperature Ts:805K
Sintering time: with 50K/min, from room temperature, be warmed up to 805K, be incubated 10 minutes
Sintering pressure: 400MPa,
Powder is carried out to Fast Sintering, and in resistance sintering and process of cooling, pressure remains at 400MPa, the amorphous composite of the controlled content of amorphous that can to obtain diameter be Φ 20mm.Its density is 98.5%, and room temperature hardness is 690HV, and the amorphous volume content is about 90%.
Embodiment 4: the preparation of amorphous composite
Ni-based amorphous powder and titanium-based amorphous powder are respectively by following element and atomic percent consumption batching thereof, Ni-based amorphous powder: Ni 55at.%, Zr 24at.%, Ti 6at.%, Nb 8.5at.%, Al 6.5at.%; Titanium-based amorphous powder: Ti 67.5at.%, Nb 7.0at.%, Cu 10.5at.%, Ni 8.5at.%, Al 6.5at.%, all the other are inevitable trace impurity.
The step of the present embodiment and processing parameter thereof are all with embodiment 1.Can obtain diameter and be Φ 20mm, take Ni-based amorphous phase as matrix phase, the β-Ti that separates out nano-scale and (Cu, Ni) Ti
2for the controlled metallic glass composite of wild phase content of amorphous.Detect and show through scanning electronic microscope, composite inner does not comprise obvious visible hole, has reached near complete fine and close, and its density is 97.4%, and room temperature hardness is 601HV, and the amorphous volume content is about 60%.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. an amorphous composite, contain nickel, zirconium, titanium, niobium, aluminium and copper, it is characterized in that: the microtexture of this amorphous composite be take Ni-based amorphous phase as matrix phase, with β-Ti and (Cu, Ni) Ti
2for wild phase, concrete component and counting by atom percentage content: Ni 30～59at.%, Zr 10～24at.%, Ti 10～35at.%, Nb 7～10at.%, Al 3～7at.%, Cu 1～3at.%, all the other are inevitable trace impurity.
2. the preparation method of an amorphous composite according to claim 1, it is characterized in that: described amorphous composite is formed through Fast Sintering by Ni-based amorphous powder and titanium-based amorphous powder.
3. the preparation method of amorphous composite according to claim 2 is characterized in that: described Fast Sintering refers at least one in the powder sintering method of extruding, hot pressing and discharge plasma sintering.
4. the preparation method of amorphous composite according to claim 2, it is characterized in that: the concrete component of described Ni-based amorphous powder and counting by atom percentage content: Ni 55～59at.%, Zr 20～24at.%, Ti 6.0～10at.%, Nb 6.0～10at.%, Al 3.0～7.0at.%.
5. the preparation method of amorphous composite according to claim 2, it is characterized in that: the concrete component of described titanium-based amorphous powder and counting by atom percentage content: Ti 64～68at.%, Nb 8～18at.%, Cu 6.0～10.5at.%, Ni 5.5～8.0at.%, Al 3.0～7.0at.%, all the other are inevitable trace impurity.
6. the preparation method of amorphous composite according to claim 2, it is characterized in that: the consumption of described Ni-based amorphous powder by volume per-cent is 50～99%.
7. the preparation method of amorphous composite according to claim 2 is characterized in that: specifically comprise following steps:
Step 1: high-energy ball milling prepares amorphous powder
Ni-based amorphous powder and titanium-based amorphous powder are carried out respectively to high-energy ball milling, until two kinds of alloy systems form the amorphous alloy powders with wide supercooling liquid phase region, two kinds of amorphous powders at least reach 95% by its volume percent amorphous phase separately;
Step 2: pulse electric current sintering amorphous powder
Ni-based amorphous powder after ball milling and titanium-based amorphous powder are mixed, the two-phase amorphous powder that adopts the pulsed current Fast Sintering to pack in sintering mold, the accuracy controlling sintering parameter, adopt the high pressure low temperature sintering, and the pulse electric current sintering processing condition are as follows:
Agglomerating plant: discharge plasma sintering system
Sintering current type: pulsed current
Crystallization temperature-the 20K of sintering temperature Ts:Ts >=titanium-based amorphous powder
The glass transformation temperature of Ts≤Ni-based amorphous powder
Soaking time: 10～20min
Temperature rise rate: 10～50K/min
Sintering pressure: 400～500MPa;
Obtain in microtexture and take Ni-based amorphous phase as matrix phase through sintering, with β-Ti and (Cu, Ni) Ti
2nanocrystalline is the amorphous composite of wild phase.
8. the preparation method of amorphous composite according to claim 7, it is characterized in that: the concrete component of Ni-based amorphous powder described in step 1 and counting by atom percentage content: Ni 55～59at.%, Zr 20～24at.%, Ti 6.0～10at.%, Nb 6.0～10at.%, Al 3.0～7.0at.%; The concrete component of described titanium-based amorphous powder and counting by atom percentage content: Ti 64～68at.%, Nb 8～18at.%, Cu 6.0～10.5at.%, Ni 5.5～8.0at.%, Al 3.0～7.0at.%, all the other are inevitable trace impurity; Described Ni-based amorphous powder and titanium-based amorphous powder are dry mixed respectively to evenly before high-energy ball milling in mixed powder machine.
9. the preparation method of amorphous composite according to claim 7, it is characterized in that: the content of the Ni-based amorphous powder that the Ni-based amorphous content of described amorphous composite can drop into by control is controlled; Sintering mold described in step 2 refers to tungsten carbide die.
10. the application of amorphous composite according to claim 1 in space flight and aviation, military project.
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| CN108203793A (en) * | 2016-12-16 | 2018-06-26 | 刘志红 | A kind of Ni bases amorphous powder and preparation method |
| CN108468001A (en) * | 2018-04-02 | 2018-08-31 | 湘潭大学 | Fine copper toughening bio-medical titanium-based metallic glass composite and preparation method thereof |
| CN108796408A (en) * | 2018-06-25 | 2018-11-13 | 中国人民解放军海军工程大学 | A kind of intensifying method of metallic particles enhancing amorphous composite material |
| CN109136789A (en) * | 2018-08-16 | 2019-01-04 | 深圳市锆安材料科技有限公司 | A kind of amorphous alloy USB interface and preparation method thereof |
| CN109465442A (en) * | 2018-11-12 | 2019-03-15 | 华中科技大学 | A kind of forging of amorphous alloy part/increasing material composite manufacturing method |
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| CN104911380A (en) * | 2015-06-09 | 2015-09-16 | 华南理工大学 | Preparation method of ultrafine-grain Ti-6Al-4V alloy |
| CN108203793A (en) * | 2016-12-16 | 2018-06-26 | 刘志红 | A kind of Ni bases amorphous powder and preparation method |
| CN108468001A (en) * | 2018-04-02 | 2018-08-31 | 湘潭大学 | Fine copper toughening bio-medical titanium-based metallic glass composite and preparation method thereof |
| CN108796408A (en) * | 2018-06-25 | 2018-11-13 | 中国人民解放军海军工程大学 | A kind of intensifying method of metallic particles enhancing amorphous composite material |
| CN109136789A (en) * | 2018-08-16 | 2019-01-04 | 深圳市锆安材料科技有限公司 | A kind of amorphous alloy USB interface and preparation method thereof |
| CN109465442A (en) * | 2018-11-12 | 2019-03-15 | 华中科技大学 | A kind of forging of amorphous alloy part/increasing material composite manufacturing method |
| CN109465442B (en) * | 2018-11-12 | 2019-10-25 | 华中科技大学 | A kind of forging of amorphous alloy part/increasing material composite manufacturing method |
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