CN107937743A - A kind of method of rapidly and efficiently reinforced aluminium alloy tensile property - Google Patents

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

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CN107937743A
CN107937743A CN201711172475.9A CN201711172475A CN107937743A CN 107937743 A CN107937743 A CN 107937743A CN 201711172475 A CN201711172475 A CN 201711172475A CN 107937743 A CN107937743 A CN 107937743A
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aluminium alloy
glassy metal
crucible
melting
alloy
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CN107937743B (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, including the preparation of 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 alloy, T6 six steps of heat treatment of glassy metal intensive treatment aluminium alloy.Technical solution using 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 of low cost to strengthen, and has huge commercial application potentiality and value.The present invention can be used for pack alloy die casting before, before tilted casting and gravitational casting casting aluminium alloy melt quick intensive treatment, enhanced time is short, and addition is low, disperses fast, strengthens significant effect.

Description

A kind of method of rapidly and efficiently reinforced aluminium alloy tensile property
Technical field
The present invention relates to aluminium alloy manufacture field, and in particular to a kind of side of rapidly and efficiently reinforced aluminium alloy tensile property Method.
Background technology
In fields such as automobile ship, aerospaces, the material of many components (such as internal combustion engine) is not at ambient 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 new 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, carry 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 parts 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 elements containing Ti, when alloy of the silicon content in aluminium alloy more than 4% breeds (rotten) processing, Ti members Element can react with Si elements generates TiSi, TiSi2And Ti5Si3Poisoning effect is produced Deng phase, structure refinement efficiency is significantly Reduce and performance cannot further improve, Al-B alterants are for the Al-Si alloy system thinning microstructure effects without Ti elements It is excellent, but poisoning effect of the generation as Al-Ti-B iso-metamorphism agent when Ti impurity contents are 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 etc. are higher containing rare earth cost, and Al-Si alloy structures thinning effect is not shown Write.The schedule of reinforcement of existing aluminium alloy can not also meet industrial requirement.Therefore, it is badly in need of a kind of Si amounts that are suitable for of exploitation and is higher than 4% Al-Si systems alloy breed required, the hardening agent and intensifying method of inexpensive, efficient reinforced aluminium alloy.Therefore, study such as What low cost, the efficient performance of aluminium alloy at high temperature that improves meet that the active demand of commercial Application has important reality meaning Justice.
The content of the invention
It is contemplated that improve the high-temperature behavior of aluminium alloy, it is proposed that a kind of rapidly and efficiently reinforced aluminium alloy tensile property Method, has expanded the high temperature application of aluminium alloy, and a new method is provided 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 kind of method of rapidly and efficiently reinforced aluminium alloy tensile property, comprises the following steps：
The preparation of step 1, metallic glass alloys ingot, step are as follows：
1a, Zr, Cu, Al, Ni surface film oxide polished it is clean, then by Zr55Cu30Al10Ni5Atomic percent ratio is matched somebody with somebody Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
Zr, Cu, Al, Ni for preparing, be stacked in water cooled copper mould crucible by 1b successively from low to high according to fusing point；
1c, cover bell, is vacuumized twice before formal melting, vacuumizes 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, be filled with the high-purity Ar gas of 0.05-0.06MPa to dilute oxygen remaining in stove；
1e, be first used for oxygen uptake, smelting time 2min, Ran Houyong with the pure titanium in water jacketed copper crucible in arc-melting vacuum chamber Electric arc melting Zr-Cu-Al-Ni alloys, and magnetic stir-melting alloy is aided in, melted alloy is overturn repeatedly, continues melting, Melting number is more than or equal to 5, each melting 2-4min；
1f, inhale the aluminium alloy under molten condition and cast onto in copper mould below water cooled copper mould crucible with 5 × 102K/s's Cooldown rate is quickly cooled down, 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 positioned over 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 following steps：
Glassy metal charge bar, be positioned in silica crucible by 2a, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas for being filled with into stove 0.5-0.6 atmospheric pressure, then it is filled with into spray bottle 1.5-1.6 atmospheric pressure Ar gas so that pressure difference is in 0.9-1.1 atmospheric pressure；
2c, open medium frequency induction power supply after high speed copper roller speed is 3000r/min, melts bar, finally will fusing Aluminium alloy be injected on high speed copper roller, it is 1-4mm that width, which is made, thick 20-50 μm of glassy metal band.
The preparation of step 3, the hardening agent containing glassy metal：
30g ZrCuAlNi glassy metal bands, be positioned in aging furnace and anneal at a temperature of 473-573K by 3a Handle 2-4h；
30gZrCuAlNi glassy metal bands after annealing, be added in cylinder of steel by 3b, and diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, every kind of 10, ZrO2The common 800g of ball quality, in 200-300r/min Rotating speed under ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 0.5-2h；
3c, by the glassy metal powder after ball-milling treatment with 3:7 mass ratio is attached in cylinder of steel again after being mixed with aluminium powder, Taken out after uniformly mixing 8-20h under the rotating speed of 50r/min, wherein, aluminium powder purity 99.9wt.%Al；
3d, encase glassy metal powder, al powder mixt made from step 3c with aluminium foil, is cold-pressed under forcing press Block, obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 65-80%；
The preparation of step 4, aluminium alloy：
Advance load weighted Al-Si alloys, be positioned in crucible and be put into togerther crucible type resistance melting with crucible by 4a In stove, 1023K is warming up to；The Al-Si alloying components are Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and keep the temperature 30min, adds 0.05-0.10wt.% slag-cleaning agents and aluminium alloy is carried out Refining slagging-off, 10min is kept the temperature after slag hitting processing；
Aluminium alloy, be cast in metal type dies by 4c, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy：
Advance load weighted non-reinforced aluminium alloy, be positioned in crucible and be put into togerther crucible type melting resistance with crucible by 5a In furnace, 1023K is warming up to；
5b, after non-reinforced aluminium alloy is completely melt and keep the temperature 30min, adds the clear of 0.05wt.%-0.10wt.% Slag agent carries out aluminium alloy refining slagging-off, and 10min is kept the temperature after slag hitting processing；
Glassy metal hardening agent, be added in aluminium alloy by 5c, and the ZrCuAlNi glassy metal amounts of being actually added into are 0.01wt.%-0.20wt.% percentage by weights, using melt 10-120s is ultrasonically treated, promote the equal of glassy metal hardening agent Even scattered, the intensive treatment time is 10-120s；
5d, carry out mechanical agitation 10-30s to hybrid alloys liquid, is cast to after stirring in metal type dies, obtains strong Aluminium alloy after change processing.
The T6 heat treatments of step 6, glassy metal intensive treatment aluminium alloy：
6a, carry out solution heat treatment to the aluminium alloy after intensive treatment, and temperature 783K, time 8-12h, then enters rapidly water Quenching；
6b, by after solution heat treatment aluminium alloy carry out 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 reinforced aluminium alloy adds glassy metal 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, its tensile strength and breaking strain divide respectively by the 398MPa of non-reinforced aluminium alloy and 3.90% The 465MPa and 5.88% after strengthening has not been brought up to, 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 Enclose, promote 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, including metallic glass alloys ingot preparation, 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 Gold, the T6 of glassy metal intensive treatment aluminium alloy are heat-treated six steps.Technical solution using the present invention, step is rationally, soon The fast room temperature efficiently (completed reinforced aluminium alloy process in tens seconds) and greatly improve aluminium alloy and high temperature obdurability are (especially very big The high-temperature yield strength of aluminium alloy is improved, after intensive treatment 73.21%), and by force aluminium alloy high-temperature yield strength highest improves Change is efficient, it is of low 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 casting before aluminium alloy melt quick intensive treatment, enhanced time is short, and addition is low, disperse It hurry up, strengthen significant effect.
The advantageous effect of the invention：Technical scheme, it is brilliant using the metastable structure of glassy metal and its heat Change the physical characteristic for forming nano-sized particles, use 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 Being cold-pressed the pre-dispersed method of blocking method combination ultrasonic wave added after aluminium powder mixing makes hardening agent disperse not reunite, and strengthens high Effect, of low cost, enhanced time is short, and addition is low, disperses fast, strengthens significant effect, have huge commercial application potentiality and Value.
Brief description of the drawings
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.
Embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, with reference to Embodiment, the present invention is further explained.
Embodiment 1：
The method of rapidly and efficiently reinforced aluminium alloy tensile property in the present embodiment, comprises the following steps：
The preparation of step 1, metallic glass alloys ingot：
1a, Zr, Cu, Al, Ni surface film oxide polished it is clean, then by Zr55Cu30Al10Ni5Atomic percent ratio is matched somebody with somebody Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
Zr, Cu, Al, Ni for preparing, be stacked in water cooled copper mould crucible by 1b successively from low to high according to fusing point；
1c, cover bell, is vacuumized twice before formal melting, vacuumizes 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, be filled with the high-purity Ar gas of 0.06MPa atmospheric pressure to dilute oxygen remaining in stove；
1e, be first used for oxygen uptake, smelting time 3min, Ran Houyong with the pure titanium in water jacketed copper crucible in arc-melting vacuum chamber Electric arc melting Zr-Cu-Al-Ni alloys, and magnetic stir-melting alloy is aided in, melted alloy is overturn into continuation melting repeatedly, Melting number is 6, each melting 3min.
1f, inhale the aluminium alloy under molten condition and cast onto in copper mould below water cooled copper mould crucible with 5 × 102K/s's Cooldown rate is quickly cooled down, 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 positioned over 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 following steps：
Glassy metal charge bar, be positioned in silica crucible by 2a, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas for being filled with into stove 0.6 atmospheric pressure, 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, open medium frequency induction power supply after high speed copper roller speed is 3000r/min, melts bar, finally will fusing Aluminium alloy be injected on high speed copper roller, be made width be 3mm, thickness 20 μm of glassy metal bands.
The preparation of step 3, the hardening agent containing glassy metal：
30g ZrCuAlNi glassy metal bands, be positioned in aging furnace and made annealing treatment at a temperature of 473K by 3a 2h。
30gZrCuAlNi glassy metal bands after annealing, be added in cylinder of steel by 3b, and diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, every kind of 10, ZrO2The common 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 3:7 mass ratio 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 rotating speed of 50r/min again.
3d, encase glassy metal powder, al powder mixt made from previous step with aluminium foil, is cold-pressed under forcing press Block, obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 70%.
The preparation of step 4, aluminium alloy：
Advance load weighted Al-Si alloys, be positioned in crucible and be put into togerther crucible type resistance melting with crucible by 4a In stove, 1023K is warming up to；The Al-Si alloying components are Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and keep the temperature 30min, adds 0.05wt.% slag-cleaning agents and aluminium alloy is refined Slagging-off, 10min is kept the temperature after slag hitting processing；
Aluminium alloy, be cast in metal type dies by 4c, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy：
Advance load weighted non-reinforced aluminium alloy, be positioned in crucible and be put into togerther crucible type melting resistance with crucible by 5a In furnace, 1023K is warming up to；
5b, after non-reinforced aluminium alloy is completely melt and keep the temperature 30min, adds the slag-cleaning agent of 0.05wt.% to alloy Liquid carries out refining slagging-off, and 10min is kept the temperature after slag hitting processing；
Glassy metal hardening agent, be added in aluminium alloy by 5c, and the ZrCuAlNi glassy metal amounts of being actually added into are 0.01wt.% percentage by weights promote dispersed, the intensive treatment of glassy metal hardening agent using melt 10s is ultrasonically treated Time is 10s.
5d, carry out mechanical agitation 10s to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Aluminium alloy after processing.
The T6 heat treatments of step 6, glassy metal intensive treatment aluminium alloy；
6a, carry out solution heat treatment to the aluminium alloy after intensive treatment, and temperature 783K, time 8h, then enters rapidly water quenching Fire；
6b, by after solution heat treatment aluminium alloy carry out 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, the dispersing technology described in step 5c is pre-dispersed for ultrasonic wave added.
Zr55Cu30Al10Ni5Glassy metal is short with enhanced time to aluminium alloy, and addition is low, disperses fast, structure refinement With strengthen effective effect, obtained in addition 0.01wt.%, intensive treatment 10s processing aluminium alloy preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, its tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, difference 437MPa and 5.22% have been brought up to, has improved 9.80% and 33.85% than non-reinforced alloys respectively, as shown in Figure 1.
B, under 523K, its 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, comprises the following steps：
The preparation of step 1, metallic glass alloys ingot：
1a, Zr, Cu, Al, Ni surface film oxide polished it is clean, then by Zr55Cu30Al10Ni5Atomic percent ratio is matched somebody with somebody Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
Zr, Cu, Al, Ni for preparing, be stacked in water cooled copper mould crucible by 1b successively from low to high according to fusing point；
1c, cover bell, is vacuumized twice before formal melting, vacuumizes 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, be filled with the high-purity Ar gas of 0.05MPa atmospheric pressure to dilute oxygen remaining in stove；
1e, be first used for oxygen uptake, smelting time 4min, Ran Houyong with the pure titanium in water jacketed copper crucible in arc-melting vacuum chamber Electric arc melting Zr-Cu-Al-Ni alloys, and magnetic stir-melting alloy is aided in, melted alloy is overturn into continuation melting repeatedly, Melting number is 7, each melting 2min.
1f, inhale the aluminium alloy under molten condition and cast onto in copper mould below water cooled copper mould crucible with 5 × 102K/s's Cooldown rate is quickly cooled down, 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 positioned over 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 following steps：
Glassy metal charge bar, be positioned in silica crucible by 2a, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas for being filled with into stove 0.5 atmospheric pressure, 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, open medium frequency induction power supply after high speed copper roller speed is 3000r/min, melts bar, finally will fusing Aluminium alloy be injected on high speed copper roller, be made width be 1mm, thickness 20 μm of glassy metal bands.
The preparation of step 3, the hardening agent containing glassy metal：
30g ZrCuAlNi glassy metal bands, be positioned in aging furnace and made annealing treatment at a temperature of 493K by 3a 3h。
30gZrCuAlNi glassy metal bands after annealing, be added in cylinder of steel by 3b, and diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, every kind of 10, ZrO2The common 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 3:7 mass ratio 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 rotating speed of 50r/min again.
3d, encase glassy metal powder, al powder mixt made from previous step with aluminium foil, is cold-pressed under forcing press Block, obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 65%.
The preparation of step 4, aluminium alloy：
Advance load weighted Al-Si alloys, be positioned in crucible and be put into togerther crucible type resistance melting with crucible by 4a In stove, 1023K is warming up to；The Al-Si alloying components are Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and keep the temperature 30min, adds 0.10wt.% slag-cleaning agents and aluminium alloy is refined Slagging-off, 10min is kept the temperature after slag hitting processing；
Aluminium alloy, be cast in metal type dies by 4c, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy：
Advance load weighted non-reinforced aluminium alloy, be positioned in crucible and be put into togerther crucible type melting resistance with crucible by 5a In furnace, 1023K is warming up to；
5b, after non-reinforced aluminium alloy is completely melt and keep the temperature 30min, adds the slag-cleaning agent of 0.10wt.% to alloy Liquid carries out refining slagging-off, and 10min is kept the temperature after slag hitting processing；
Glassy metal hardening agent, be added in aluminium alloy by 5c, and the ZrCuAlNi glassy metal amounts of being actually added into are 0.05wt.% percentage by weights promote dispersed, the intensive treatment of glassy metal hardening agent using melt 45s is ultrasonically treated Time is 45s.
5d, carry out mechanical agitation 15s to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Aluminium alloy after processing.
The T6 heat treatments of step 6, glassy metal intensive treatment aluminium alloy；
6a, carry out solution heat treatment to the aluminium alloy after intensive treatment, and temperature 783K, time 9h, then enters rapidly water quenching Fire；
6b, by after solution heat treatment aluminium alloy carry out 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, the dispersing technology described in step 5c is pre-dispersed for ultrasonic wave added.
Zr55Cu30Al10Ni5Glassy metal is short with enhanced time to aluminium alloy, and addition is low, disperses fast, structure refinement With strengthen effective effect, obtained in addition 0.05wt.%, intensive treatment 45s processing aluminium alloy preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, its tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, difference 451MPa and 6.25% have been brought up to, has improved 13.32% and 60.26% than non-reinforced alloys respectively, as shown in Figure 1.
B, under 523K, its 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, comprises the following steps：
The preparation of step 1, metallic glass alloys ingot：
1a, Zr, Cu, Al, Ni surface film oxide polished it is clean, then by Zr55Cu30Al10Ni5Atomic percent ratio is matched somebody with somebody Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
Zr, Cu, Al, Ni for preparing, be stacked in water cooled copper mould crucible by 1b successively from low to high according to fusing point；
1c, cover bell, is vacuumized twice before formal melting, vacuumizes 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, be filled with the high-purity Ar gas of 0.06MPa atmospheric pressure to dilute oxygen remaining in stove；
1e, be first used for oxygen uptake, smelting time 2min, Ran Houyong with the pure titanium in water jacketed copper crucible in arc-melting vacuum chamber Electric arc melting Zr-Cu-Al-Ni alloys, and magnetic stir-melting alloy is aided in, melted alloy is overturn into continuation melting repeatedly, Melting number is 5, each melting 4min.
1f, inhale the aluminium alloy under molten condition and cast onto in copper mould below water cooled copper mould crucible with 5 × 102K/s's Cooldown rate is quickly cooled down, 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 positioned over 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 following steps：
Glassy metal charge bar, be positioned in silica crucible by 2a, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas for being filled with into stove 0.5 atmospheric pressure, 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, open medium frequency induction power supply after high speed copper roller speed is 3000r/min, melts bar, finally will fusing Aluminium alloy be injected on high speed copper roller, be made width be 4mm, thickness 50 μm of glassy metal bands.
The preparation of step 3, the hardening agent containing glassy metal：
30g ZrCuAlNi glassy metal bands, be positioned in aging furnace and made annealing treatment at a temperature of 523K by 3a 4h。
30gZrCuAlNi glassy metal bands after annealing, be added in cylinder of steel by 3b, and diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, every kind of 10, ZrO2The common 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 3:7 mass ratio 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 rotating speed of 50r/min again.
3d, encase glassy metal powder, al powder mixt made from previous step with aluminium foil, is cold-pressed under forcing press Block, obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 80%.
The preparation of step 4, aluminium alloy：
Advance load weighted Al-Si alloys, be positioned in crucible and be put into togerther crucible type resistance melting with crucible by 4a In stove, 1023K is warming up to；The Al-Si alloying components are Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and keep the temperature 30min, adds 0.05wt.% slag-cleaning agents and aluminium alloy is refined Slagging-off, 10min is kept the temperature after slag hitting processing；
Aluminium alloy, be cast in metal type dies by 4c, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy：
Advance load weighted non-reinforced aluminium alloy, be positioned in crucible and be put into togerther crucible type melting resistance with crucible by 5a In furnace, 1023K is warming up to；
5b, after non-reinforced aluminium alloy is completely melt and keep the temperature 30min, adds the slag-cleaning agent of 0.05wt.% to alloy Liquid carries out refining slagging-off, and 10min is kept the temperature after slag hitting processing；
Glassy metal hardening agent, be added in aluminium alloy by 5c, and the ZrCuAlNi glassy metal amounts of being actually added into are 0.10wt.% percentage by weights promote dispersed, the intensive treatment of glassy metal hardening agent using melt 60s is ultrasonically treated Time is 60s.
5d, carry out mechanical agitation 20s to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Aluminium alloy after processing.
The T6 heat treatments of step 6, glassy metal intensive treatment aluminium alloy；
6a, carry out solution heat treatment to the aluminium alloy after intensive treatment, and temperature 783K, time 8h, then enters rapidly water quenching Fire；
6b, by after solution heat treatment aluminium alloy carry out 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, the dispersing technology described in step 5c is pre-dispersed for ultrasonic wave added.
Zr55Cu30Al10Ni5Glassy metal is short with enhanced time to aluminium alloy, and addition is low, disperses fast, structure refinement With strengthen effective effect, obtained in addition 0.10wt.%, intensive treatment 60s processing aluminium alloy preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, its tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, difference 465MPa and 5.88% have been brought up to, has improved 16.83% and 50.77% than non-reinforced alloys respectively, as shown in Figure 1.
B, under 523K, its 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, comprises the following steps：
The preparation of step 1, metallic glass alloys ingot：
1a, Zr, Cu, Al, Ni surface film oxide polished it is clean, then by Zr55Cu30Al10Ni5Atomic percent ratio is matched somebody with somebody Getting well and resting in the beaker for be contained with absolute alcohol prevents its oxidation；
Zr, Cu, Al, Ni for preparing, be stacked in water cooled copper mould crucible by 1b successively from low to high according to fusing point；
1c, cover bell, is vacuumized twice before formal melting, vacuumizes 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, be filled with the high-purity Ar gas of 0.05MPa atmospheric pressure to dilute oxygen remaining in stove；
1e, be first used for oxygen uptake, smelting time 2min, Ran Houyong with the pure titanium in water jacketed copper crucible in arc-melting vacuum chamber Electric arc melting Zr-Cu-Al-Ni alloys, and magnetic stir-melting alloy is aided in, melted alloy is overturn into continuation melting repeatedly, Melting number is 5, each melting 4min.
1f, inhale the aluminium alloy under molten condition and cast onto in copper mould below water cooled copper mould crucible with 5 × 102K/s's Cooldown rate is quickly cooled down, 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 positioned over 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 following steps：
Glassy metal charge bar, be positioned in silica crucible by 2a, is evacuated down to 6.0 × 10-3Pa；
2b, the Ar gas for being filled with into stove 0.5 atmospheric pressure, 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, open medium frequency induction power supply after high speed copper roller speed is 3000r/min, melts bar, finally will fusing Aluminium alloy be injected on high speed copper roller, be made width be 4mm, thickness 20 μm of glassy metal bands.
The preparation of step 3, the hardening agent containing glassy metal：
30g ZrCuAlNi glassy metal bands, be positioned in aging furnace and made annealing treatment at a temperature of 573K by 3a 3h。
30gZrCuAlNi glassy metal bands after annealing, be added in cylinder of steel by 3b, and diameter difference is filled in tank For the ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, every kind of 10, ZrO2The common 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 3:7 mass ratio 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 rotating speed of 50r/min again.
3d, encase glassy metal powder, al powder mixt made from previous step with aluminium foil, is cold-pressed under forcing press Block, obtains the round pie hardening agent containing glassy metal of Φ 30, consistency 70%.
The preparation of step 4, aluminium alloy：
Advance load weighted Al-Si alloys, be positioned in crucible and be put into togerther crucible type resistance melting with crucible by 4a In stove, 1023K is warming up to；The Al-Si alloying components are Al-13Si-5Cu-0.6Mg.
4b, after alloy is completely melt and keep the temperature 30min, adds 0.10wt.% slag-cleaning agents and aluminium alloy is refined Slagging-off, 10min is kept the temperature after slag hitting processing；
Aluminium alloy, be cast in metal type dies by 4c, obtains the aluminium alloy of non-intensive treatment；
Step 5, glassy metal intensive treatment aluminium alloy：
Advance load weighted non-reinforced aluminium alloy, be positioned in crucible and be put into togerther crucible type melting resistance with crucible by 5a In furnace, 1023K is warming up to；
5b, after non-reinforced aluminium alloy is completely melt and keep the temperature 30min, adds the slag-cleaning agent of 0.10wt.% to alloy Liquid carries out refining slagging-off, and 10min is kept the temperature after slag hitting processing；
Glassy metal hardening agent, be added in aluminium alloy by 5c, and the ZrCuAlNi glassy metal amounts of being actually added into are 0.20wt.% percentage by weights promote dispersed, the intensive treatment of glassy metal hardening agent using melt 120s is ultrasonically treated Time is 120s.
5d, carry out mechanical agitation 30s to hybrid alloys liquid, is cast in metal type dies, is strengthened after stirring Aluminium alloy after processing.
The T6 heat treatments of step 6, glassy metal intensive treatment aluminium alloy；
6a, carry out solution heat treatment to the aluminium alloy after intensive treatment, and temperature 783K, time 12h, then enters rapidly water quenching Fire；
6b, by after solution heat treatment aluminium alloy carry out 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, the dispersing technology described in step 5c is pre-dispersed for ultrasonic wave added.
Zr55Cu30Al10Ni5Glassy metal is short with enhanced time to aluminium alloy, and addition is low, disperses fast, structure refinement With strengthen effective effect, obtained in addition 0.20wt.%, intensive treatment 120s processing aluminium alloy preferable room temperature and Mechanical behavior under high temperature.
A, at room temperature, its tensile strength and breaking strain are respectively by the 398MPa of non-reinforced alloys and 3.90%, difference 427MPa and 5.21% have been brought up to, has improved 7.29% and 33.59% than non-reinforced alloys respectively, as shown in Figure 1.
B, under 523K, its 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 data below：
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 the 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 1. method of rapidly and efficiently reinforced aluminium alloy tensile property, it is characterised in that：Comprise the following steps：
    The preparation of step 1, metallic glass alloys ingot, step are as follows：
    1a, Zr, Cu, Al, Ni surface film oxide polished it is clean, then by Zr55Cu30Al10Ni5Atomic percent ratio prepares and quiet Put prevents its oxidation in the beaker for be contained with absolute alcohol；
    Zr, Cu, Al, Ni for preparing, be stacked in water cooled copper mould crucible by 1b successively from low to high according to fusing point；
    1c, cover bell, is vacuumized twice before formal melting, vacuumizes 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, be filled with the high-purity Ar gas of 0.05-0.06MPa to dilute oxygen remaining in stove；
    1e, be first used for oxygen uptake with the pure titanium in water jacketed copper crucible in arc-melting vacuum chamber, and smelting time 2min, then uses electric arc Melting Zr-Cu-Al-Ni alloys, and magnetic stir-melting alloy is aided in, melted alloy is overturn repeatedly, continues melting, melting Number is more than or equal to 5, each melting 2-4min；
    1f, inhale the aluminium alloy under molten condition and cast onto in copper mould below water cooled copper mould crucible with 5 × 102The cooling speed of K/s Rate is quickly cooled down, 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 positioned over high vacuum Medium frequency induction Remelting is carried out in stove, 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 following steps：
    Glassy metal charge bar, be positioned in silica crucible by 2a, is evacuated down to 6.0 × 10-3Pa；
    2b, the Ar gas for being filled with into stove 0.5-0.6 atmospheric pressure, then the Ar gas of 1.5-1.6 atmospheric pressure is filled with into spray bottle, So that pressure difference is in 0.9-1.1 atmospheric pressure；
    2c, open medium frequency induction power supply 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 that width, which is made, thick 20-50 μm of glassy metal band；
    The preparation of step 3, the hardening agent containing glassy metal：
    30g ZrCuAlNi glassy metal bands, be positioned in aging furnace and made annealing treatment at a temperature of 473-573K by 3a 2-4h；
    30gZrCuAlNi glassy metal bands after annealing, be added in cylinder of steel by 3b, and diameter is filled in tank is respectively The ZrO of 5mm, 7mm, 11mm, 15mm, 20mm, 22mm2Ball, every kind of 10, ZrO2The common 800g of ball quality, 200-300r/min's ZrCuAlNi glassy metal powder is obtained to glassy metal band ball-milling treatment 0.5-2h under rotating speed；
    3c, by the glassy metal powder after ball-milling treatment with 3:7 mass ratio is attached in cylinder of steel again after being mixed with aluminium powder, Taken out after uniformly mixing 8-20h under the rotating speed of 50r/min, wherein, aluminium powder purity 99.9wt.%Al；
    3d, encase glassy metal powder, al powder mixt made from step 3c with aluminium foil, is cold-pressed under forcing press blocking, obtains To the round pie hardening agent containing glassy metal of Φ 30, consistency 65-80%；
    The preparation of step 4, aluminium alloy：
    Advance load weighted Al-Si alloys, be positioned in crucible and be put into togerther with crucible in crucible type melting resistance furnace by 4a, It is warming up to 1023K；The Al-Si alloying components are Al-13Si-5Cu-0.6Mg；
    4b, after alloy is completely melt and keep the temperature 30min, adds 0.05-0.10wt.% slag-cleaning agents and aluminium alloy is refined Slagging-off, 10min is kept the temperature after slag hitting processing；
    Aluminium alloy, be cast in metal type dies by 4c, obtains the aluminium alloy of non-intensive treatment；
    Step 5, glassy metal intensive treatment aluminium alloy：
    Advance load weighted non-reinforced aluminium alloy, be positioned in crucible and be put into togerther crucible type melting resistance furnace with crucible by 5a It is interior, it is warming up to 1023K；
    5b, after non-reinforced aluminium alloy is completely melt and keep the temperature 30min, adds the slag-cleaning agent of 0.05wt.%-0.10wt.% Refining slagging-off is carried out to aluminium alloy, 10min is kept the temperature after slag hitting processing；
    Glassy metal hardening agent, be added in aluminium alloy by 5c, and the ZrCuAlNi glassy metals amount of being actually added into is 0.01wt.%- 0.20wt.% percentage by weights, using melt 10-120s is ultrasonically treated, promote the dispersed of glassy metal hardening agent, strengthen Processing time is 10-120s；
    5d, carry out mechanical agitation 10-30s to hybrid alloys liquid, is cast to after stirring in metal type dies, strengthened place Aluminium alloy after reason；
    The T6 heat treatments of step 6, glassy metal intensive treatment aluminium alloy：
    6a, carry out solution heat treatment to the aluminium alloy after intensive treatment, and temperature 783K, time 8-12h, then enters rapidly water quenching Fire；
    6b, by after solution heat treatment aluminium alloy carry out aging strengthening model, temperature 438K, time 8-20h.
  2. A kind of 2. method of rapidly and efficiently reinforced aluminium alloy tensile property according to claim 1, it is characterised in that：It is described The size of copper mould in step 1f is 7mm, the sizes of the metal type dies in the step 4c for 200mm × 150mm × 12mm。
  3. A kind of 3. method of rapidly and efficiently reinforced aluminium alloy tensile property according to claim 1, it is characterised in that：It is described Dispersing technology employed in step 5c is that ultrasonic wave added is pre-dispersed.
  4. A kind of 4. method of rapidly and efficiently reinforced aluminium alloy tensile property according to claim 1, it is characterised in that：It is 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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