CN106623866A - Preparation method of anisotropic bulk metallic glass - Google Patents
Preparation method of anisotropic bulk metallic glass Download PDFInfo
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- CN106623866A CN106623866A CN201611176864.4A CN201611176864A CN106623866A CN 106623866 A CN106623866 A CN 106623866A CN 201611176864 A CN201611176864 A CN 201611176864A CN 106623866 A CN106623866 A CN 106623866A
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- tubular type
- type crucible
- preparation
- cooling medium
- heater
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/045—Directionally solidified castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention relates to a preparation method of anisotropic bulk metallic glass. The method comprises the following steps that 1, an alloy rod with the specific size and components is prefabricated and put into a specially-made tubular crucible; 2, the tubular crucible containing the prefabricated alloy rod is integrally heated with a heating device to enable the prefabricated alloy rod to be completely molten; 3, the tubular crucible is driven by a drawing rod to be submerged into a cooling medium downwards in the axial direction at a certain constant speed, and then preparation of the anisotropic full-amorphous bulk metallic glass is completed. According to the preparation method, by controlling and unidirectionally cooling heat flow generated in the preparation and solidification process of the bulk metallic glass, rearrangement of short-distance ordered cluster structures in the bulk metallic glass is achieved, and preparation of the anisotropic full-amorphous bulk metallic glass with the macro-mechanical properties is completed.
Description
Technical field
The present invention relates to a kind of preparation method of anisotropy block metal glass, belongs to field of material preparation.
Background technology
Glassy metal is also referred to as amorphous alloy, has orderly crystal structure, metal glass different from traditional metal materials
Glass internal structure presents the state of longrange disorder, and such structure causes glassy metal to compare traditional metal materials with more
Excellent mechanical property, such as high intensity, high resiliency, high tenacity and a series of performances of high rigidity, this also causes glassy metal
Become following most potential engineering material.Because glassy metal inside lacks the crystal structure of long-range, will not be such as traditional gold
Category material is the same, and because of the difference of crystal inside orientation the anisotropy of macro property is presented.The anisotropy of material, makees
For a kind of special performance, some special applications demands can be met.To cause glassy metal that anisotropy is presented, in Iowa of the U.S.
Zr is made by the method for isothermal tensile creep in the research of state university Ott etc.41.2Ti13.8Cu12.5Ni10Be22.5Bulk metal glass
Glass presents structural anisotropy；And then by the side of hot uniaxial pressing in the research of univ cambridge uk Concustell etc.
Method makes Pd40Cu30Ni10P20Block metal glass has shown the anisotropy of macroscopical elastic performance；Additionally, Chinese invention patent
CN101673605B carries out devitrification process by the way that block metal glass is annealed under magnetic field, obtains with excellent properties
Anisotropy nanometer/amorphous composite permanent-magnetic material.However, after being by carrying out to glassy metal in the research report of the above
The method of process makes it present anisotropy, and it is still that we need that anisotropy how is introduced in the preparation process of glassy metal
The problem to be faced.
The preparation of block metal glass is realized typically by the quick cooled and solidified of molten alloy liquid of specific system, solidified
Block metal glass afterwards inherits alloy shortrange order Cluster Structures in the liquid phase, and in the block metal glass after solidifying
Portion's Cluster Structures are then rendered as longrange disorder arrangement, and cause the block metal glass for preparing to show as macroscopically isotropic.On
The presence of block metal glass inside shortrange order Cluster Structures is stated, is to prepare that there is macroscopic view respectively to different during cooled and solidified
Property block metal glass provide may.
The content of the invention
The invention aims to a kind of preparation method of anisotropy block metal glass is provided, by molten alloy
Hot-fluid control of the liquid in process of setting and unidirectional cooling, realize the full amorphous block metal glass of macro-mechanical property anisotropy
The preparation of glass.
To realize object above, technical scheme is as follows：
A kind of hot-fluid controls one-way cooling device, including tubular type crucible, thermal baffle, cooling medium, heater and
Pumping rod, including tubular type crucible, thermal baffle, heater, cooling medium and pumping rod, tubular type crucible one end and pumping rod
One end is connected, with pumping rod axially movable；Cooling medium is arranged on tubular type crucible lower section through pumping rod, and heater sets
Put in tubular type crucible surrounding, thermal baffle is provided between cooling medium and heater.
The alloy bar of specific dimensions and composition can be loaded in tubular type crucible；Heater can be to tubular type crucible in whole or in part
Heating, and ensure that tubular type crucible top alloy is in all the time molten condition in preparation process；Tubular type crucible can be in company with pumping rod edge
Axially downwardly uniform motion, the quick cooling that top molten alloy liquid is capable of achieving after tubular type crucible bottom submerges cooling medium is coagulated
Gu；Additionally, adding thermal baffle between cooling medium and heater, heat-insulated effect is played.
The method for preparing anisotropy block metal glass using said apparatus, comprises the following steps：
The first step：The alloy bar of diameter 3～6mm specific components is precast, in then inserting the tubular type crucible of corresponding internal diameter,
It is placed in being protected under high purity inert gas environment；
Second step：The tubular type crucible equipped with alloy bar material is integrally heated using heater, and is made in tubular type crucible
Alloy bar material is melted completely as aluminium alloy；
3rd step：Drive tubular type crucible and at the uniform velocity submerge to cool down with the speed of 1～5mm/s axially downward by pumping rod and be situated between
In matter, realize to the hot-fluid control in aluminium alloy process of setting and unidirectional cooling, and it is complete to complete macro-mechanical property anisotropy
The preparation of amorphous block glassy metal.
Further, tubular type crucible material described in the first step is graphite, corundum, quartz or stainless steel.
Further, high purity inert gas described in the first step are using high-purity argon gas or high-purity helium.
Further, heater described in second step is resistance furnace or load coil.
Further, cooling medium described in the 3rd step is from the Ga-In alloys having compared with high-heat conductive efficency.
Compared with prior art, advantages of the present invention is with innovative point：
1st, the present invention is real by the hot-fluid control to block metal glass during cooled and solidified is prepared and unidirectional cooling
Show the rearrangement of block metal glass inside shortrange order Cluster Structures, and complete the full amorphous state of macro-mechanical property anisotropy
The preparation of block metal glass.
2nd, the prepared anisotropy block metal glass macro-mechanical property significant difference of the present invention, parallel direction of heat flow cuts
The nano impress microhardness value in face can significantly be higher by vertical heat flow direction section 2～6%.
Description of the drawings
Fig. 1 is that hot-fluid involved in the present invention controls one-way cooling device structural representation.
Fig. 2 is V1 block metal glass horizontal stroke, longitudinal section X ray diffracting spectrum prepared by the present invention.
Fig. 3 is V1 block metal glass horizontal stroke, longitudinal section nano-indentation hardness comparison diagram prepared by the present invention.
In Fig. 1,1 is tubular type crucible, and 2 is molten alloy liquid, and 3 is thermal baffle, and 4 is cooling medium, and 5 is heater, 6
For solidified superalloy, 7 is pumping rod.
Specific embodiment
Below in conjunction with the accompanying drawings the principle and feature of the present invention are described with embodiment, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
As shown in figure 1, a kind of hot-fluid controls one-way cooling device, including tubular type crucible 1, thermal baffle 3, cooling medium 4,
Heater 5 and pumping rod 7.Wherein, the solidified superalloy 6 after molten alloy liquid 2 being filled in tubular type crucible 1 and being cooled down；Heating
Device 5 can be heated to the entirety of tubular type crucible 1 or top, and ensure that molten alloy liquid 2 is in all the time molten condition in preparation process；
The lower end of tubular type crucible 1 is connected with the upper end of pumping rod 7, and tubular type crucible 1 can be in company with the uniform motion axially downward of pumping rod 7；When
The bottom of tubular type crucible 1 is submerged after cooling medium 4 and is capable of achieving the quick cooling of molten alloy liquid 2 and forms solidified superalloy 6；Heat-insulated gear
Plate 3 plays heat-insulated effect between cooling medium 4 and heater 5.
Embodiment 1
Prepare anisotropy V1 (Zr41.2Ti13.8Cu12.5Ni10Be22.5) block metal glass.
Concrete preparation process is as follows：
The first step：Diameter 3mm is precast, component is Zr41.2Ti13.8Cu12.5Ni10Be22.5Alloy bar material, then insert
In the opening graphite tubular type crucible of internal diameter 3mm, and whole device is protected as under high-purity argon gas environment.
Second step：The graphite tubular type crucible equipped with V1 alloy bar materials is integrally added by heater (load coil)
Heat, and the V1 alloy bar materials in tubular type crucible is melted completely as aluminium alloy.
3rd step：Tubular type crucible is driven by pumping rod at the uniform velocity to submerge cooling medium with the speed of 1mm/s axially downward
In Ga-In alloys, the preparation of the full amorphous state V1 block metal glass of anisotropy is completed.
Fig. 2 illustrate by such scheme prepare V1 block metal glass perpendicular to direction of heat flow cross section (Cross
Section) with parallel to measured XRD spectrum on the longitudinal section of direction of heat flow (Longitudinal section), from
It may be seen that both XRD spectrums present typical amorphous phase steamed bun peak in figure, sample is indicated for full amorphous knot
Structure.And in figure 3, we can observe that, basically identical compared to copper mold fast quenching (CMC) V1 block metal glass is horizontal, vertical
Receive section nano impress microhardness, V1 block metal glass (1mm/s) longitudinal section prepared by the unidirectional cooling of hot-fluid control
Rice impression microhardness value is significantly higher by its cross section about 6%.Show to be successfully realized macro-mechanical property by said method
The preparation of the full amorphous state V1 block metal glass of anisotropy.
Embodiment 2
Prepare anisotropy V1 (Zr41.2Ti13.8Cu12.5Ni10Be22.5) block metal glass.
Concrete preparation process is as follows：
The first step：Diameter 6mm is precast, component is Zr41.2Ti13.8Cu12.5Ni10Be22.5Alloy bar material, then insert
In the opening graphite tubular type crucible of internal diameter 6mm, and whole device is protected as under high-purity argon gas environment.
Second step：By heater 5 (load coil) to the graphite tubular type crucible entirety equipped with V1 alloy bar materials
Heating, and the V1 alloy bar materials in tubular type crucible is melted completely as aluminium alloy.
3rd step：Tubular type crucible is driven by pumping rod at the uniform velocity to submerge cooling medium with the speed of 5mm/s axially downward
In Ga-In alloys, the preparation of the full amorphous state V1 block metal glass of anisotropy is completed.
V1 block metal glass after the completion of preparation, XRD test results show that it is full non crystalline structure, nano-indenter test
As a result show that its longitudinal section nano impress microhardness value is significantly higher by its cross section about 2%.Show by said method success
Realize the preparation of the full amorphous state V1 block metal glass of macro-mechanical property anisotropy.
Embodiment 3
Prepare anisotropy Pd base (Pt40Cu30Ni10P20) block metal glass.
Concrete preparation process is as follows：
The first step：Diameter 5mm is precast, component is Pt40Cu30Ni10P20Alloy bar material, that then inserts internal diameter 5mm can
In sealing stainless steel tubular type crucible, sealing after high-purity helium is protected is vacuumized and is filled with to crucible inside.
Second step：The stainless steel tubular type crucible equipped with Pd based alloy bars is integrally added by heater (resistance furnace)
Pd based alloys bar in heat, and the tubular type crucible for making is melted completely as aluminium alloy.
3rd step：Tubular type crucible is driven by pumping rod at the uniform velocity to submerge cooling medium with the speed of 2mm/s axially downward
In Ga-In alloys, the preparation of the full amorphous state Pd bast block metal glass of anisotropy is completed.
Pd bast block metal glass after the completion of preparation, XRD test results show that it is full non crystalline structure, and nano impress is surveyed
Test result shows that its longitudinal section nano impress microhardness value is significantly higher by its cross section about 5%.Show by said method into
Work(realizes the preparation of the full amorphous state Pd bast block metal glass of macro-mechanical property anisotropy.
Claims (6)
1. a kind of preparation method of anisotropy block metal glass, it is characterised in that comprise the following steps：
The first step：According to the specific components of block metal glass, the alloy bar of 3～6mm of diameter is precast, then inserted in corresponding
In the tubular type crucible in footpath, it is placed in being protected under high purity inert gas environment；
Second step：The tubular type crucible equipped with alloy bar material is integrally heated using heater, and makes the alloy in tubular type crucible
Bar is melted completely as aluminium alloy；
3rd step：Tubular type crucible is driven by pumping rod at the uniform velocity to submerge cooling medium with the speed of 1～5mm/s axially downward
In, realize to the hot-fluid control in aluminium alloy process of setting and unidirectional cooling.
2. the method for claim 1, it is characterised in that in the first step, tubular type crucible material is graphite, corundum, quartz
Or stainless steel.
3. the method for claim 1, it is characterised in that in the first step, the high purity inert gas adopt high-purity argon gas
Or high-purity helium.
4. a kind of hot-fluid controls one-way cooling device, including tubular type crucible, thermal baffle, heater, cooling medium and takes out
Pull bar, tubular type crucible one end is connected with pumping rod one end, moves with pumping rod vertically；Cooling medium is arranged through pumping rod
Below tubular type crucible, heater is arranged on tubular type crucible surrounding, is provided between cooling medium and heater heat-insulated
Baffle plate.
5. device as claimed in claim 4, it is characterised in that the heater is resistance furnace or load coil.
6. device as claimed in claim 4, it is characterised in that the cooling medium selects Ga-In alloys.
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| CN201611176864.4A CN106623866A (en) | 2016-12-19 | 2016-12-19 | Preparation method of anisotropic bulk metallic glass |
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| CN201611176864.4A CN106623866A (en) | 2016-12-19 | 2016-12-19 | Preparation method of anisotropic bulk metallic glass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930015A (en) * | 2017-12-17 | 2019-06-25 | 南京理工大学 | A kind of preparation method of magnesium-based single crystal alloy particle |
| CN111230078A (en) * | 2020-03-09 | 2020-06-05 | 西北工业大学 | Directional solidification method for metal material |
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| US20060260782A1 (en) * | 2003-04-14 | 2006-11-23 | Johnson William L | Continuous casting of bulk solidifying amorphous alloys |
| CN101543885A (en) * | 2009-05-02 | 2009-09-30 | 大连理工大学 | Device and method for continuous block metal glass shaping |
| CN201842899U (en) * | 2010-11-04 | 2011-05-25 | 西北工业大学 | Laser heating directional solidification device |
| CN102181809A (en) * | 2011-04-21 | 2011-09-14 | 南京理工大学 | Large-size metallic glass composite material with tensile ductility and preparation method thereof |
| CN102641999A (en) * | 2012-04-24 | 2012-08-22 | 王东 | Device and method for continuously preparing bulk amorphous alloy ingots |
| US20150090371A1 (en) * | 2013-09-30 | 2015-04-02 | Glassimetal Technology, Inc. | Production of metallic glass by melt deposition |
| JP2015098044A (en) * | 2013-11-19 | 2015-05-28 | 株式会社石原産業 | Forming device of metallic glass |
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2016
- 2016-12-19 CN CN201611176864.4A patent/CN106623866A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060260782A1 (en) * | 2003-04-14 | 2006-11-23 | Johnson William L | Continuous casting of bulk solidifying amorphous alloys |
| CN101543885A (en) * | 2009-05-02 | 2009-09-30 | 大连理工大学 | Device and method for continuous block metal glass shaping |
| CN201842899U (en) * | 2010-11-04 | 2011-05-25 | 西北工业大学 | Laser heating directional solidification device |
| CN102181809A (en) * | 2011-04-21 | 2011-09-14 | 南京理工大学 | Large-size metallic glass composite material with tensile ductility and preparation method thereof |
| CN102641999A (en) * | 2012-04-24 | 2012-08-22 | 王东 | Device and method for continuously preparing bulk amorphous alloy ingots |
| US20150090371A1 (en) * | 2013-09-30 | 2015-04-02 | Glassimetal Technology, Inc. | Production of metallic glass by melt deposition |
| JP2015098044A (en) * | 2013-11-19 | 2015-05-28 | 株式会社石原産業 | Forming device of metallic glass |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930015A (en) * | 2017-12-17 | 2019-06-25 | 南京理工大学 | A kind of preparation method of magnesium-based single crystal alloy particle |
| CN111230078A (en) * | 2020-03-09 | 2020-06-05 | 西北工业大学 | Directional solidification method for metal material |
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