CN107937743B - A method of rapidly and efficiently reinforced aluminium alloy tensile property - Google Patents

A method of rapidly and efficiently reinforced aluminium alloy tensile property Download PDF

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CN107937743B
CN107937743B CN201711172475.9A CN201711172475A CN107937743B CN 107937743 B CN107937743 B CN 107937743B CN 201711172475 A CN201711172475 A CN 201711172475A CN 107937743 B CN107937743 B CN 107937743B
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aluminium alloy
glassy metal
alloy
crucible
melting
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CN107937743A (en
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邱丰
朱琳
常芳
姜启川
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Jilin University
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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
    • C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • 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
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent

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Abstract

The invention discloses a kind of method of rapidly and efficiently reinforced aluminium alloy tensile property, the preparation of preparation, glassy metal band including metallic glass alloys ingot, the preparation of the hardening agent containing glassy metal, the preparation of aluminium alloy, glassy metal intensive treatment aluminium alloy, glassy metal intensive treatment aluminium alloy T6 be heat-treated six steps.Using technical solution of the present invention, step is reasonable, rapidly and efficiently (complete reinforced aluminium alloy process within tens seconds) and greatly improve the room temperature of aluminium alloy and high temperature obdurability (especially greatly improves the high-temperature yield strength of aluminium alloy, after intensive treatment 73.21%) aluminium alloy high-temperature yield strength highest improves, and reinforcing is efficient, it is low in cost to strengthen, and has huge commercial application potentiality and value.The present invention can be used for pack alloy die casting before, tilted casting and gravitational casting cast before aluminium alloy melt quick intensive treatment, enhanced time is short, and additional amount is low, and dispersion is fast, and strengthening effect is significant.

Description

A method of rapidly and efficiently reinforced aluminium alloy tensile property
Technical field
The present invention relates to aluminium alloy manufacture fields, and in particular to a kind of side of rapidly and efficiently reinforced aluminium alloy tensile property Method.
Background technique
In automobile ship, the fields such as aerospace, the material of many components (such as internal combustion engine) is not at room temperature Work, but be on active service for a long time under the high temperature conditions.Since temperature influences the performance of material greatly, to develop novel light weight The high-temperature material of change is of great practical significance.With the propulsion of internal combustion engine Lightweight Technology, aluminum alloy materials zero Ratio of the part in engine component is improving year by year.Compared to cast iron, the thermal conductivity of aluminium alloy is fabulous (about higher than cast iron by 3 Times), be conducive to the conduction and heat dissipation of engine cylinder body heat content.Meanwhile aluminium alloy is light is conducive to lightweight and energy-saving and emission-reduction, mentions High-energy utilization rate and energy efficiency.In engine component, cast aluminium alloy gold is engine cylinder body, cylinder sleeve, piston, speed change The light-weighted preferred material of the components such as case frictional disk.The hardening agent of mainstream aluminium alloy is such as at present: Al-Ti-B, Al-Ti-C, Al- The inovulants such as Ti-C-B all contain Ti element, when alloy of the silicon content greater than 4% breeds (rotten) processing in aluminium alloy, Ti member Element can react with Si element and generate TiSi, TiSi2And Ti5Si3Poisoning effect is generated Deng phase, structure refinement efficiency is substantially It reduces and performance not can be further improved, Al-B alterant is for the Al-Si alloy system thinning microstructure effect without Ti element It is excellent, but poisoning effect of the generation as Al-Ti-B iso-metamorphism agent when Ti impurity content is higher than 0.04% in the alloy, High, restricted application is required to alloy system narrow application range, and to the degree of purity of aluminium alloy.Other alterants or Inovulant is such as: Al-Sr, Al-Ce, Al-La contain rare earth higher cost, and do not show to Al-Si alloy structure thinning effect It writes.The schedule of reinforcement of existing aluminium alloy is also unable to satisfy industrial requirement.Therefore, it is badly in need of developing one kind suitable for Si amount higher than 4% Al-Si alloy breed required, the hardening agent and intensifying method of inexpensive, efficient reinforced aluminium alloy.Therefore, it studies such as What low cost, the efficient performance of aluminium alloy at high temperature that improves meet the urgent need of industrial application with important reality meaning Justice.
Summary of the invention
The present invention is directed to improve the high-temperature behavior of aluminium alloy, a kind of rapidly and efficiently reinforced aluminium alloy tensile property is proposed Method has expanded the high temperature application of aluminium alloy, provides a new method for the high temperature application of most important lightweighting materials aluminium alloy With reinforcing approach.
The purpose of the present invention can be achieved through the following technical solutions:
A method of rapidly and efficiently reinforced aluminium alloy tensile property, comprising the following steps:
The preparation of step 1, metallic glass alloys ingot, steps are as follows:
1a, Zr, Cu, Al, Ni surface film oxide are polished completely, then presses Zr55Cu30Al10Ni5Atomic percent ratio is matched Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
1b, Zr, Cu, Al, Ni for preparing successively are stacked in water cooled copper mould crucible from low to high according to fusing point；
1c, bell is covered, is vacuumized twice before formal melting, vacuumized every time all to 6.0 × 10-3Pa is simultaneously filled with High-purity Ar gas is to dilute remnant oxygen；
1d, after vacuumizing twice, the high-purity Ar gas of 0.05-0.06MPa is filled with to dilute oxygen remaining in furnace；
1e, the pure titanium in arc-melting vacuum chamber in water jacketed copper crucible is first used to be used for oxygen uptake, then smelting time 2min is used Electric arc melting Zr-Cu-Al-Ni alloy, and magnetic stir-melting alloy is assisted, melted alloy is overturn repeatedly, continues melting, Melting number is more than or equal to 5, each melting 2-4min；
1f, the aluminium alloy under molten condition is inhaled in the copper mould cast onto below water cooled copper mould crucible with 5 × 102K/s's Cooling rate is rapidly cooled, and cooling time, 2s, obtained glassy metal bar；
The preparation of step 2, glassy metal band: the glassy metal bar that melt back obtains is placed in high vacuum intermediate frequency Remelting is carried out in induction furnace, is then injected under high-purity argon gas protective condition on the high speed copper roller of 3000r/min and metal is made Thin ribbon of glass, specifically includes the following steps:
2a, glassy metal charge bar is placed in silica crucible, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas that 0.5-0.6 atmospheric pressure is filled with into furnace, then 1.5-1.6 atmospheric pressure is filled with into spray bottle Ar gas, so that pressure difference is in 0.9-1.1 atmospheric pressure；
2c, medium frequency induction power supply is opened after high speed copper roller speed is 3000r/min, melts bar, it finally will fusing Aluminium alloy be injected on high speed copper roller, be made width be 1-4mm, thick 20-50 μm of glassy metal band.
The preparation of step 3, the hardening agent containing glassy metal:
3a, by 30g ZrCuAlNi glassy metal band be placed in aging furnace 473-573K at a temperature of anneal Handle 2-4h；
3b, the 30gZrCuAlNi glassy metal band after annealing is added in cylinder of steel, diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, 10 every kind, ZrO2The total 800g of ball quality, in 200-300r/min Revolving speed under ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 0.5-2h；
3c, it is attached in cylinder of steel again after mixing the glassy metal powder after ball-milling treatment with aluminium powder with the mass ratio of 3:7, It is taken out after uniformly mixing 8-20h under the revolving speed of 50r/min, wherein aluminium powder purity 99.9wt.%Al；
3d, glassy metal powder, al powder mixt made from step 3c are encased with aluminium foil, is cold-pressed under press machine Block obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 65-80%；
The preparation of step 4, aluminium alloy:
4a, preparatory load weighted Al-Si alloy is placed in crucible and is put into togerther crucible type resistance melting with crucible In furnace, it is warming up to 1023K；The Al-Si alloying component is Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and 30min is kept the temperature, adds 0.05-0.10wt.% slag-cleaning agent and aluminium alloy is carried out Refining slagging-off keeps the temperature 10min after slag hitting processing；
4c, aluminium alloy is cast in metal type dies, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy:
5a, preparatory load weighted non-reinforced aluminium alloy is placed in crucible and is put into togerther crucible type melting resistance with crucible In furnace, it is warming up to 1023K；
5b, after non-reinforced aluminium alloy is completely melt and 30min is kept the temperature, adds the clear of 0.05wt.%-0.10wt.% Slag agent carries out refining slagging-off to aluminium alloy, keeps the temperature 10min after slag hitting processing；
5c, glassy metal hardening agent is added in aluminium alloy, the ZrCuAlNi glassy metal amount of being actually added into is 0.01wt.%-0.20wt.% weight percent promotes the equal of glassy metal hardening agent using ultrasonic treatment melt 10-120s Even dispersion, intensive treatment time are 10-120s；
5d, mechanical stirring 10-30s is carried out to hybrid alloys liquid, is cast in metal type dies after stirring, obtained strong Change treated aluminium alloy.
The T6 heat treatment of step 6, glassy metal intensive treatment aluminium alloy:
6a, solution heat treatment is carried out to the aluminium alloy after intensive treatment, then temperature 783K, time 8-12h enter rapidly water Quenching；
6b, the aluminium alloy after solution heat treatment is subjected to aging strengthening model, temperature 438K, time 8-20h.
Preferably, the size of the copper mould in the step 1f is 7mm, the size of the metal type dies in the step 4c For 200mm × 150mm × 12mm.
Preferably, used dispersing technology is that ultrasonic wave added is pre-dispersed.
Preferably, the optimal intensive treatment time in the step 5c is 60s.
Preferably, the optimum quality percentage that glassy metal is added in reinforced aluminium alloy in the step 5c is 0.10%.
Aluminium alloy mechanical behavior under high temperature after the intensive treatment is greatly improved:
(glassy metal hardening agent additive amount 0.10wt.%, enhanced time 60s), the surrender of alloy under optimal technique Intensity, tensile strength and breaking strain are greatly improved.
A, at room temperature, tensile strength and breaking strain divide respectively by the 398MPa of non-reinforced aluminium alloy and 3.90% The 465MPa and 5.88% not being increased to after strengthening, improves 16.83% and 50.77% than non-reinforced aluminium alloy respectively
B, the 137.0MPa and 177.5MPa of non-reinforced aluminium alloy, has been respectively increased 237.3MPa and 248.1MPa, point 73.21% and 39.77% are not improved than non-reinforced aluminium alloy.
It is noted that greatly improving for the yield strength of aluminium alloy will be enlarged by the application model of aluminium alloy at high temperature It encloses, promotes the light-weighted industrial applications of high strength at high temperature aluminium alloy.
The method of rapidly and efficiently reinforced aluminium alloy tensile property in the present invention, preparation including metallic glass alloys ingot, The preparation of glassy metal band, the preparation of the hardening agent containing glassy metal, the preparation of aluminium alloy, glassy metal intensive treatment aluminium close T6 six steps of heat treatment of gold, glassy metal intensive treatment aluminium alloy.Using technical solution of the present invention, step is rationally, fastly The fast room temperature and high temperature obdurability efficiently (completed reinforced aluminium alloy process in tens seconds) and greatly improve aluminium alloy is (especially greatly The high-temperature yield strength of aluminium alloy is improved, after intensive treatment 73.21%) aluminium alloy high-temperature yield strength highest improves, and strong Change is efficient, it is low in cost to strengthen, and has huge commercial application potentiality and value.The present invention can be used for pack alloy die casting Before, tilted casting and gravitational casting cast before aluminium alloy melt quick intensive treatment, enhanced time is short, and additional amount is low, dispersion Fastly, strengthening effect is significant.
The advantageous effect of the invention: technical solution of the present invention, it is brilliant using the metastable structure of glassy metal and its heat Change the physical characteristic for forming nano-sized particles, uses the reinforced by nanoparticles aluminium alloy after glassy metal crystallization, metal glass Glass cost in strengthening process is lower than rare earth alterative, greatly improves aluminium alloy obdurability.The present invention is in glassy metal hardening agent Manufacturing process in annealing+ball-milling treatment come to glassy metal band hardening agent pre-process, with glassy metal powder with The pre-dispersed method of blocking method combination ultrasonic wave added is cold-pressed after aluminium powder mixing makes hardening agent dispersion not reunite, and strengthens high Effect, low in cost, enhanced time is short, and additional amount is low, and dispersion is fast, and strengthening effect is significant, have huge commercial application potentiality and Value.
Detailed description of the invention
Fig. 1 different metal thin ribbon of glass size, difference Zr55Cu30Al10Ni5Glassy metal additive amount, different enhanced times And after strengthening under different ultrasonic techniques aluminium alloy room temperature tensile stress-strain curve diagram；
Fig. 2 different metal thin ribbon of glass size, difference Zr55Cu30Al10Ni5Glassy metal additive amount, different enhanced times And after strengthening under different ultrasonic techniques aluminium alloy drawing by high temperature stress-strain curve diagram.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to Specific embodiment, the present invention is further explained.
Embodiment 1:
The method of rapidly and efficiently reinforced aluminium alloy tensile property in the present embodiment, comprising the following steps:
The preparation of step 1, metallic glass alloys ingot:
1a, Zr, Cu, Al, Ni surface film oxide are polished completely, then presses Zr55Cu30Al10Ni5Atomic percent ratio is matched Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
1b, Zr, Cu, Al, Ni for preparing successively are stacked in water cooled copper mould crucible from low to high according to fusing point；
1c, bell is covered, is vacuumized twice before formal melting, vacuumized every time all to 6.0 × 10-3Pa is simultaneously filled with High-purity Ar gas is to dilute remnant oxygen；
1d, after vacuumizing twice, the high-purity Ar gas of 0.06MPa atmospheric pressure is filled with to dilute oxygen remaining in furnace；
1e, the pure titanium in arc-melting vacuum chamber in water jacketed copper crucible is first used to be used for oxygen uptake, then smelting time 3min is used Electric arc melting Zr-Cu-Al-Ni alloy, and magnetic stir-melting alloy is assisted, melted alloy is overturn repeatedly and continues melting, Melting number is 6, each melting 3min.
1f, the aluminium alloy under molten condition is inhaled in the copper mould cast onto below water cooled copper mould crucible with 5 × 102K/s's Cooling rate is rapidly cooled, and cooling time, 2s, obtained glassy metal bar；
The preparation of step 2, glassy metal band: the glassy metal bar that melt back obtains is placed in high vacuum intermediate frequency Remelting is carried out in induction furnace, is then injected under high-purity argon gas protective condition on the high speed copper roller of 3000r/min and metal is made Thin ribbon of glass, specifically includes the following steps:
2a, glassy metal charge bar is placed in silica crucible, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas that 0.6 atmospheric pressure is filled with into furnace, then it is filled with into spray bottle the Ar gas of 1.5 atmospheric pressure, so that Pressure difference is in 0.9 atmospheric pressure；
2c, medium frequency induction power supply is opened after high speed copper roller speed is 3000r/min, melts bar, it finally will fusing Aluminium alloy be injected on high speed copper roller, it is 3mm, thick 20 μm of glassy metal bands that width, which is made,.
The preparation of step 3, the hardening agent containing glassy metal:
3a, by 30g ZrCuAlNi glassy metal band be placed in aging furnace 473K at a temperature of make annealing treatment 2h。
3b, the 30gZrCuAlNi glassy metal band after annealing is added in cylinder of steel, diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, 10 every kind, ZrO2The total 800g of ball quality, in turning for 300r/min ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 0.5h under speed.
3c, by the glassy metal powder after ball-milling treatment with the mass ratio of 3:7 and aluminium powder (aluminium powder purity 99.9wt.%Al) It is attached in cylinder of steel after mixing, is taken out after uniformly mixing 8h under the revolving speed of 50r/min again.
3d, glassy metal powder, al powder mixt made from previous step are encased with aluminium foil, is cold-pressed under press machine Block obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 70%.
The preparation of step 4, aluminium alloy:
4a, preparatory load weighted Al-Si alloy is placed in crucible and is put into togerther crucible type resistance melting with crucible In furnace, it is warming up to 1023K；The Al-Si alloying component is Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and 30min is kept the temperature, adds 0.05wt.% slag-cleaning agent and aluminium alloy is refined Slagging-off keeps the temperature 10min after slag hitting processing；
4c, aluminium alloy is cast in metal type dies, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy:
5a, preparatory load weighted non-reinforced aluminium alloy is placed in crucible and is put into togerther crucible type melting resistance with crucible In furnace, it is warming up to 1023K；
5b, after non-reinforced aluminium alloy is completely melt and 30min is kept the temperature, adds the slag-cleaning agent of 0.05wt.% to alloy Liquid carries out refining slagging-off, keeps the temperature 10min after slag hitting processing；
5c, glassy metal hardening agent is added in aluminium alloy, the ZrCuAlNi glassy metal amount of being actually added into is 0.01wt.% weight percent promotes evenly dispersed, the intensive treatment of glassy metal hardening agent using ultrasonic treatment melt 10s Time is 10s.
5d, mechanical stirring 10s is carried out to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Treated aluminium alloy.
The T6 heat treatment of step 6, glassy metal intensive treatment aluminium alloy；
6a, solution heat treatment is carried out to the aluminium alloy after intensive treatment, then temperature 783K, time 8h enter rapidly water quenching Fire；
6b, the aluminium alloy after solution heat treatment is subjected to aging strengthening model, temperature 438K, time 10h.
Wherein, the size of the copper mould is 7mm, and the size of metal type dies used is 200mm × 150mm × 12mm.
Wherein, dispersing technology described in step 5c is that ultrasonic wave added is pre-dispersed.
Zr55Cu30Al10Ni5Glassy metal has enhanced time short aluminium alloy, and additional amount is low, and dispersion is fast, structure refinement With strengthening effect obvious action, addition 0.01wt.%, intensive treatment 10s processing aluminium alloy when obtain preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, respectively It has been increased to 437MPa and 5.22%, has improved 9.80% and 33.85% than non-reinforced alloys respectively, as shown in Figure 1.
B, at 523K, yield strength and tensile strength respectively by the 137.0MPa and 177.5MPa of non-inoculant alloy, 224.2MPa and 240.7MPa has been respectively increased, has improved 63.65% and 35.61% than non-inoculant alloy respectively, such as Fig. 2 It is shown.
Embodiment 2:
The method of rapidly and efficiently reinforced aluminium alloy tensile property in the present embodiment, comprising the following steps:
The preparation of step 1, metallic glass alloys ingot:
1a, Zr, Cu, Al, Ni surface film oxide are polished completely, then presses Zr55Cu30Al10Ni5Atomic percent ratio is matched Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
1b, Zr, Cu, Al, Ni for preparing successively are stacked in water cooled copper mould crucible from low to high according to fusing point；
1c, bell is covered, is vacuumized twice before formal melting, vacuumized every time all to 6.0 × 10-3Pa is simultaneously filled with High-purity Ar gas is to dilute remnant oxygen；
1d, after vacuumizing twice, the high-purity Ar gas of 0.05MPa atmospheric pressure is filled with to dilute oxygen remaining in furnace；
1e, the pure titanium in arc-melting vacuum chamber in water jacketed copper crucible is first used to be used for oxygen uptake, then smelting time 4min is used Electric arc melting Zr-Cu-Al-Ni alloy, and magnetic stir-melting alloy is assisted, melted alloy is overturn repeatedly and continues melting, Melting number is 7, each melting 2min.
1f, the aluminium alloy under molten condition is inhaled in the copper mould cast onto below water cooled copper mould crucible with 5 × 102K/s's Cooling rate is rapidly cooled, and cooling time, 2s, obtained glassy metal bar；
The preparation of step 2, glassy metal band: the glassy metal bar that melt back obtains is placed in high vacuum intermediate frequency Remelting is carried out in induction furnace, is then injected under high-purity argon gas protective condition on the high speed copper roller of 3000r/min and metal is made Thin ribbon of glass, specifically includes the following steps:
2a, glassy metal charge bar is placed in silica crucible, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas that 0.5 atmospheric pressure is filled with into furnace, then it is filled with into spray bottle the Ar gas of 1.5 atmospheric pressure, so that Pressure difference is in 1.0 atmospheric pressure；
2c, medium frequency induction power supply is opened after high speed copper roller speed is 3000r/min, melts bar, it finally will fusing Aluminium alloy be injected on high speed copper roller, it is 1mm, thick 20 μm of glassy metal bands that width, which is made,.
The preparation of step 3, the hardening agent containing glassy metal:
3a, by 30g ZrCuAlNi glassy metal band be placed in aging furnace 493K at a temperature of make annealing treatment 3h。
3b, the 30gZrCuAlNi glassy metal band after annealing is added in cylinder of steel, diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, 10 every kind, ZrO2The total 800g of ball quality, in turning for 200r/min ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 1.0h under speed.
3c, by the glassy metal powder after ball-milling treatment with the mass ratio of 3:7 and aluminium powder (aluminium powder purity 99.9wt.%Al) It is attached in cylinder of steel after mixing, is taken out after uniformly mixing 10h under the revolving speed of 50r/min again.
3d, glassy metal powder, al powder mixt made from previous step are encased with aluminium foil, is cold-pressed under press machine Block obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 65%.
The preparation of step 4, aluminium alloy:
4a, preparatory load weighted Al-Si alloy is placed in crucible and is put into togerther crucible type resistance melting with crucible In furnace, it is warming up to 1023K；The Al-Si alloying component is Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and 30min is kept the temperature, adds 0.10wt.% slag-cleaning agent and aluminium alloy is refined Slagging-off keeps the temperature 10min after slag hitting processing；
4c, aluminium alloy is cast in metal type dies, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy:
5a, preparatory load weighted non-reinforced aluminium alloy is placed in crucible and is put into togerther crucible type melting resistance with crucible In furnace, it is warming up to 1023K；
5b, after non-reinforced aluminium alloy is completely melt and 30min is kept the temperature, adds the slag-cleaning agent of 0.10wt.% to alloy Liquid carries out refining slagging-off, keeps the temperature 10min after slag hitting processing；
5c, glassy metal hardening agent is added in aluminium alloy, the ZrCuAlNi glassy metal amount of being actually added into is 0.05wt.% weight percent promotes evenly dispersed, the intensive treatment of glassy metal hardening agent using ultrasonic treatment melt 45s Time is 45s.
5d, mechanical stirring 15s is carried out to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Treated aluminium alloy.
The T6 heat treatment of step 6, glassy metal intensive treatment aluminium alloy；
6a, solution heat treatment is carried out to the aluminium alloy after intensive treatment, then temperature 783K, time 9h enter rapidly water quenching Fire；
6b, the aluminium alloy after solution heat treatment is subjected to aging strengthening model, temperature 483K, time 8h.
Wherein, the size of the copper mould is 7mm, and the size of metal type dies used is 200mm × 150mm × 12mm.
Wherein, dispersing technology described in step 5c is that ultrasonic wave added is pre-dispersed.
Zr55Cu30Al10Ni5Glassy metal has enhanced time short aluminium alloy, and additional amount is low, and dispersion is fast, structure refinement With strengthening effect obvious action, addition 0.05wt.%, intensive treatment 45s processing aluminium alloy when obtain preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, respectively It has been increased to 451MPa and 6.25%, has improved 13.32% and 60.26% than non-reinforced alloys respectively, as shown in Figure 1.
B, at 523K, yield strength and tensile strength respectively by the 137.0MPa and 177.5MPa of non-inoculant alloy, 229.4MPa and 248.3MPa has been respectively increased, has improved 67.45% and 39.89% than non-inoculant alloy respectively, such as Fig. 2 It is shown.
Embodiment 3:
The method of rapidly and efficiently reinforced aluminium alloy tensile property in the present embodiment, comprising the following steps:
The preparation of step 1, metallic glass alloys ingot:
1a, Zr, Cu, Al, Ni surface film oxide are polished completely, then presses Zr55Cu30Al10Ni5Atomic percent ratio is matched Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
1b, Zr, Cu, Al, Ni for preparing successively are stacked in water cooled copper mould crucible from low to high according to fusing point；
1c, bell is covered, is vacuumized twice before formal melting, vacuumized every time all to 6.0 × 10-3Pa is simultaneously filled with High-purity Ar gas is to dilute remnant oxygen；
1d, after vacuumizing twice, the high-purity Ar gas of 0.06MPa atmospheric pressure is filled with to dilute oxygen remaining in furnace；
1e, the pure titanium in arc-melting vacuum chamber in water jacketed copper crucible is first used to be used for oxygen uptake, then smelting time 2min is used Electric arc melting Zr-Cu-Al-Ni alloy, and magnetic stir-melting alloy is assisted, melted alloy is overturn repeatedly and continues melting, Melting number is 5, each melting 4min.
1f, the aluminium alloy under molten condition is inhaled in the copper mould cast onto below water cooled copper mould crucible with 5 × 102K/s's Cooling rate is rapidly cooled, and cooling time, 2s, obtained glassy metal bar；
The preparation of step 2, glassy metal band: the glassy metal bar that melt back obtains is placed in high vacuum intermediate frequency Remelting is carried out in induction furnace, is then injected under high-purity argon gas protective condition on the high speed copper roller of 3000r/min and metal is made Thin ribbon of glass, specifically includes the following steps:
2a, glassy metal charge bar is placed in silica crucible, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas that 0.5 atmospheric pressure is filled with into furnace, then it is filled with into spray bottle the Ar gas of 1.6 atmospheric pressure, so that Pressure difference is in 1.1 atmospheric pressure；
2c, medium frequency induction power supply is opened after high speed copper roller speed is 3000r/min, melts bar, it finally will fusing Aluminium alloy be injected on high speed copper roller, it is 4mm, thick 50 μm of glassy metal bands that width, which is made,.
The preparation of step 3, the hardening agent containing glassy metal:
3a, by 30g ZrCuAlNi glassy metal band be placed in aging furnace 523K at a temperature of make annealing treatment 4h。
3b, the 30gZrCuAlNi glassy metal band after annealing is added in cylinder of steel, diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, 10 every kind, ZrO2The total 800g of ball quality, in turning for 200r/min ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 2h under speed.
3c, by the glassy metal powder after ball-milling treatment with the mass ratio of 3:7 and aluminium powder (aluminium powder purity 99.9wt.%Al) It is attached in cylinder of steel after mixing, is taken out after uniformly mixing 12h under the revolving speed of 50r/min again.
3d, glassy metal powder, al powder mixt made from previous step are encased with aluminium foil, is cold-pressed under press machine Block obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 80%.
The preparation of step 4, aluminium alloy:
4a, preparatory load weighted Al-Si alloy is placed in crucible and is put into togerther crucible type resistance melting with crucible In furnace, it is warming up to 1023K；The Al-Si alloying component is Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and 30min is kept the temperature, adds 0.05wt.% slag-cleaning agent and aluminium alloy is refined Slagging-off keeps the temperature 10min after slag hitting processing；
4c, aluminium alloy is cast in metal type dies, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy:
5a, preparatory load weighted non-reinforced aluminium alloy is placed in crucible and is put into togerther crucible type melting resistance with crucible In furnace, it is warming up to 1023K；
5b, after non-reinforced aluminium alloy is completely melt and 30min is kept the temperature, adds the slag-cleaning agent of 0.05wt.% to alloy Liquid carries out refining slagging-off, keeps the temperature 10min after slag hitting processing；
5c, glassy metal hardening agent is added in aluminium alloy, the ZrCuAlNi glassy metal amount of being actually added into is 0.10wt.% weight percent promotes evenly dispersed, the intensive treatment of glassy metal hardening agent using ultrasonic treatment melt 60s Time is 60s.
5d, mechanical stirring 20s is carried out to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Treated aluminium alloy.
The T6 heat treatment of step 6, glassy metal intensive treatment aluminium alloy；
6a, solution heat treatment is carried out to the aluminium alloy after intensive treatment, then temperature 783K, time 8h enter rapidly water quenching Fire；
6b, the aluminium alloy after solution heat treatment is subjected to aging strengthening model, temperature 483K, time 10h.
Wherein, the size of the copper mould is 7mm, and the size of metal type dies used is 200mm × 150mm × 12mm.
Wherein, dispersing technology described in step 5c is that ultrasonic wave added is pre-dispersed.
Zr55Cu30Al10Ni5Glassy metal has enhanced time short aluminium alloy, and additional amount is low, and dispersion is fast, structure refinement With strengthening effect obvious action, addition 0.10wt.%, intensive treatment 60s processing aluminium alloy when obtain preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, respectively It has been increased to 465MPa and 5.88%, has improved 16.83% and 50.77% than non-reinforced alloys respectively, as shown in Figure 1.
B, at 523K, yield strength and tensile strength respectively by the 137.0MPa and 177.5MPa of non-inoculant alloy, 237.3MPa and 248.1MPa has been respectively increased, has improved 73.21% and 39.77% than non-inoculant alloy respectively, such as Fig. 2 It is shown.
Embodiment 4:
The method of rapidly and efficiently reinforced aluminium alloy tensile property in the present embodiment, comprising the following steps:
The preparation of step 1, metallic glass alloys ingot:
1a, Zr, Cu, Al, Ni surface film oxide are polished completely, then presses Zr55Cu30Al10Ni5Atomic percent ratio is matched Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
1b, Zr, Cu, Al, Ni for preparing successively are stacked in water cooled copper mould crucible from low to high according to fusing point；
1c, bell is covered, is vacuumized twice before formal melting, vacuumized every time all to 6.0 × 10-3Pa is simultaneously filled with High-purity Ar gas is to dilute remnant oxygen；
1d, after vacuumizing twice, the high-purity Ar gas of 0.05MPa atmospheric pressure is filled with to dilute oxygen remaining in furnace；
1e, the pure titanium in arc-melting vacuum chamber in water jacketed copper crucible is first used to be used for oxygen uptake, then smelting time 2min is used Electric arc melting Zr-Cu-Al-Ni alloy, and magnetic stir-melting alloy is assisted, melted alloy is overturn repeatedly and continues melting, Melting number is 5, each melting 4min.
1f, the aluminium alloy under molten condition is inhaled in the copper mould cast onto below water cooled copper mould crucible with 5 × 102K/s's Cooling rate is rapidly cooled, and cooling time, 2s, obtained glassy metal bar；
The preparation of step 2, glassy metal band: the glassy metal bar that melt back obtains is placed in high vacuum intermediate frequency Remelting is carried out in induction furnace, is then injected under high-purity argon gas protective condition on the high speed copper roller of 3000r/min and metal is made Thin ribbon of glass, specifically includes the following steps:
2a, glassy metal charge bar is placed in silica crucible, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas that 0.5 atmospheric pressure is filled with into furnace, then it is filled with into spray bottle the Ar gas of 1.5 atmospheric pressure, so that Pressure difference is in 1.0 atmospheric pressure；
2c, medium frequency induction power supply is opened after high speed copper roller speed is 3000r/min, melts bar, it finally will fusing Aluminium alloy be injected on high speed copper roller, it is 4mm, thick 20 μm of glassy metal bands that width, which is made,.
The preparation of step 3, the hardening agent containing glassy metal:
3a, by 30g ZrCuAlNi glassy metal band be placed in aging furnace 573K at a temperature of make annealing treatment 3h。
3b, the 30gZrCuAlNi glassy metal band after annealing is added in cylinder of steel, diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, 10 every kind, ZrO2The total 800g of ball quality, in turning for 200r/min ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 2h under speed.
3c, by the glassy metal powder after ball-milling treatment with the mass ratio of 3:7 and aluminium powder (aluminium powder purity 99.9wt.%Al) It is attached in cylinder of steel after mixing, is taken out after uniformly mixing 20h under the revolving speed of 50r/min again.
3d, glassy metal powder, al powder mixt made from previous step are encased with aluminium foil, is cold-pressed under press machine Block obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 70%.
The preparation of step 4, aluminium alloy:
4a, preparatory load weighted Al-Si alloy is placed in crucible and is put into togerther crucible type resistance melting with crucible In furnace, it is warming up to 1023K；The Al-Si alloying component is Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and 30min is kept the temperature, adds 0.10wt.% slag-cleaning agent and aluminium alloy is refined Slagging-off keeps the temperature 10min after slag hitting processing；
4c, aluminium alloy is cast in metal type dies, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy:
5a, preparatory load weighted non-reinforced aluminium alloy is placed in crucible and is put into togerther crucible type melting resistance with crucible In furnace, it is warming up to 1023K；
5b, after non-reinforced aluminium alloy is completely melt and 30min is kept the temperature, adds the slag-cleaning agent of 0.10wt.% to alloy Liquid carries out refining slagging-off, keeps the temperature 10min after slag hitting processing；
5c, glassy metal hardening agent is added in aluminium alloy, the ZrCuAlNi glassy metal amount of being actually added into is 0.20wt.% weight percent promotes evenly dispersed, the intensive treatment of glassy metal hardening agent using ultrasonic treatment melt 120s Time is 120s.
5d, mechanical stirring 30s is carried out to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Treated aluminium alloy.
The T6 heat treatment of step 6, glassy metal intensive treatment aluminium alloy；
6a, solution heat treatment is carried out to the aluminium alloy after intensive treatment, then temperature 783K, time 12h enter rapidly water quenching Fire；
6b, the aluminium alloy after solution heat treatment is subjected to aging strengthening model, temperature 483K, time 20h.
Wherein, the size of the copper mould is 7mm, and the size of metal type dies used is 200mm × 150mm × 12mm.
Wherein, dispersing technology described in step 5c is that ultrasonic wave added is pre-dispersed.
Zr55Cu30Al10Ni5Glassy metal has enhanced time short aluminium alloy, and additional amount is low, and dispersion is fast, structure refinement With strengthening effect obvious action, addition 0.20wt.%, intensive treatment 120s processing aluminium alloy when obtain preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, respectively It has been increased to 427MPa and 5.21%, has improved 7.29% and 33.59% than non-reinforced alloys respectively, as shown in Figure 1.
B, at 523K, yield strength and tensile strength respectively by the 137.0MPa and 177.5MPa of non-inoculant alloy, 213.0MPa and 234.1MPa has been respectively increased, has improved 55.47% and 31.89% than non-inoculant alloy respectively, such as Fig. 2 It is shown.
Performance measurement is carried out for above-described embodiment material, obtains following data:
1 different metal thin ribbon of glass size of table, difference Zr55Cu30Al10Ni5Glassy metal additive amount, different enhanced times And after strengthening under different ultrasonic techniques aluminium alloy room temperature tensile properties numerical value；
2 different metal thin ribbon of glass size of table, difference Zr55Cu30Al10Ni5Glassy metal additive amount, different enhanced times And after strengthening under different ultrasonic techniques aluminium alloy high temperature tensile properties numerical value.
Fig. 1 different metal thin ribbon of glass size, difference Zr55Cu30Al10Ni5Glassy metal additive amount, different enhanced times And after strengthening under different ultrasonic techniques aluminium alloy room temperature tensile stress-strain curve diagram；
Fig. 2 different metal thin ribbon of glass size, difference Zr55Cu30Al10Ni5Glassy metal additive amount, different enhanced times And after strengthening under different ultrasonic techniques aluminium alloy drawing by high temperature stress-strain curve diagram.
Table 1
Sample σ0.2(MPa) UTS(MPa) εf(%)
Non- intensive treatment aluminium alloy 288 398 3.90
Embodiment 1 294 437 5.22
Embodiment 2 276 451 6.25
Embodiment 3 292 465 5.88
Embodiment 4 276 427 5.21
Table 2
Sample σ0.2(MPa) UTS(MPa) εf(%)
Non- intensive treatment aluminium alloy 137.0 177.5 8.54
Embodiment 1 224.2 240.7 5.08
Embodiment 2 229.4 248.3 4.41
Embodiment 3 237.3 248.1 6.16
Embodiment 4 213.0 234.1 6.06
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (4)

1. a kind of method of rapidly and efficiently reinforced aluminium alloy tensile property, it is characterised in that: the following steps are included:
The preparation of step 1, metallic glass alloys ingot, steps are as follows:
1a, Zr, Cu, Al, Ni surface film oxide are polished completely, then presses Zr55Cu30Al10Ni5Atomic percent ratio prepares and quiet Set prevents its oxidation in the beaker for being contained with absolute alcohol；
1b, Zr, Cu, Al, Ni for preparing successively are stacked in water cooled copper mould crucible from low to high according to fusing point；
1c, bell is covered, is vacuumized twice before formal melting, vacuumized every time all to 6.0 × 10-3Pa is simultaneously filled with high-purity Ar gas is to dilute remnant oxygen；
1d, after vacuumizing twice, the high-purity Ar gas of 0.05-0.06MPa is filled with to dilute oxygen remaining in furnace；
1e, the pure titanium in arc-melting vacuum chamber in water jacketed copper crucible is first used to be used for oxygen uptake, then smelting time 2min uses electric arc Melting Zr-Cu-Al-Ni alloy, and magnetic stir-melting alloy is assisted, melted alloy is overturn repeatedly, continues melting, melting Number is more than or equal to 5, each melting 2-4min；
1f, the aluminium alloy under molten condition is inhaled in the copper mould cast onto below water cooled copper mould crucible with 5 × 102The cooling speed of K/s Rate is rapidly cooled, and cooling time, 2s, obtained glassy metal bar；
The preparation of step 2, glassy metal band: the glassy metal bar that melt back obtains is placed in high vacuum Medium frequency induction Remelting is carried out in furnace, is then injected under high-purity argon gas protective condition on the high speed copper roller of 3000r/min and glassy metal is made Strip, specifically includes the following steps:
2a, glassy metal charge bar is placed in silica crucible, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas that 0.5-0.6 atmospheric pressure is filled with into furnace, then it is filled with into spray bottle the Ar gas of 1.5-1.6 atmospheric pressure, So that pressure difference is in 0.9-1.1 atmospheric pressure；
2c, medium frequency induction power supply is opened after high speed copper roller speed is 3000r/min, bar is melted, finally by the conjunction of fusing Golden liquid is injected on high speed copper roller, and it is 1-4mm, thick 20-50 μm of glassy metal band that width, which is made,；
The preparation of step 3, the hardening agent containing glassy metal:
3a, by 30g Zr55Cu30Al10Ni5Glassy metal band be placed in aging furnace 473-573K at a temperature of anneal Handle 2-4h；
3b, by the 30g Zr after annealing55Cu30Al10Ni5Glassy metal band is added in cylinder of steel, and diameter point is filled in tank Not Wei 5mm, 7mm, 11mm, 15mm, 20mm, 22mm ZrO2Ball, 10 every kind, ZrO2The total 800g of ball quality, in 200-300r/ ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 0.5-2h under the revolving speed of min；
3c, it is attached in cylinder of steel again after mixing the glassy metal powder after ball-milling treatment with aluminium powder with the mass ratio of 3:7, It is taken out after uniformly mixing 8-20h under the revolving speed of 50r/min, wherein aluminium powder purity 99.9wt.%Al；
3d, glassy metal powder, al powder mixt made from step 3c are encased with aluminium foil, is cold-pressed under press machine blocking, obtained To the round pie hardening agent containing glassy metal of Φ 30, consistency 65-80%；
The preparation of step 4, aluminium alloy:
4a, preparatory load weighted Al-Si alloy is placed in crucible and is put into togerther in crucible type melting resistance furnace with crucible, It is warming up to 1023K；The Al-Si alloying component is Al-13Si-5Cu-0.6Mg；
4b, after alloy is completely melt and 30min is kept the temperature, adds 0.05-0.10wt.% slag-cleaning agent and aluminium alloy is refined Slagging-off keeps the temperature 10min after slag hitting processing；
4c, aluminium alloy is cast in metal type dies, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy:
5a, preparatory load weighted non-reinforced aluminium alloy is placed in crucible and is put into togerther crucible type melting resistance furnace with crucible It is interior, it is warming up to 1023K；
5b, after non-reinforced aluminium alloy is completely melt and 30min is kept the temperature, adds the slag-cleaning agent of 0.05wt.%-0.10wt.% Refining slagging-off is carried out to aluminium alloy, keeps the temperature 10min after slag hitting processing；
5c, glassy metal hardening agent is added in aluminium alloy, Zr55Cu30Al10Ni5The glassy metal amount of being actually added into is 0.01wt.%-0.20wt.% weight percent promotes the equal of glassy metal hardening agent using ultrasonic treatment melt 10-120s Even dispersion, intensive treatment time are 10-120s；
5d, mechanical stirring 10-30s is carried out to hybrid alloys liquid, is cast in metal type dies after stirring, strengthened place Aluminium alloy after reason；
The T6 heat treatment of step 6, glassy metal intensive treatment aluminium alloy:
6a, solution heat treatment is carried out to the aluminium alloy after intensive treatment, then temperature 783K, time 8-12h enter rapidly water quenching Fire；
6b, the aluminium alloy after solution heat treatment is subjected to aging strengthening model, temperature 438K, time 8-20h.
2. a kind of method of rapidly and efficiently reinforced aluminium alloy tensile property according to claim 1, it is characterised in that: described The size of copper mould in step 1f is 7mm, the size of the metal type dies in the step 4c be 200mm × 150mm × 12mm。
3. a kind of method of rapidly and efficiently reinforced aluminium alloy tensile property according to claim 1, it is characterised in that: described Dispersing technology employed in step 5c is that ultrasonic wave added is pre-dispersed.
4. a kind of method of rapidly and efficiently reinforced aluminium alloy tensile property according to claim 1, it is characterised in that: described The optimal intensive treatment time in step 5c is 60s, and the optimal addition mass percent of glassy metal is 0.10wt.%.
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