CN106929711A - A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant - Google Patents
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
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- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- 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
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Abstract
The invention discloses a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprise the following steps：Al ingots, Fe ingots are configured in proportion first, after heating in vacuum melting, aerosol chemical conversion powder, then using cold isostatic compaction, vacuum degassing, extrusion forming, finally uses pressureless sintering treatment and fixation rates successively, and ferro-aluminum composite blank is obtained；Obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is vacuumized or inert gas is passed through, sensing heating then is carried out to ferro-aluminum composite, high-hardness corrosion-resistant ferro-aluminum composite is obtained.Obtained composite resistance to elevated temperatures of the invention is good, and hardness is big, and excellent anti-corrosion performance, mechanical property is good.
Description
Technical field：
The present invention relates to field of composite material preparation, a kind of ferro-aluminum composite of high rigidity highly corrosion resistant is specifically related to
Preparation method.
Background technology：
Iron aluminium composite porous material has excellent anti-oxidant, sulfuration resistant, thermal shock resistance and machinability, is
A kind of excellent high temperature filtration dielectric material, in the high-temperature gas of the industries such as sealed furnace ferroalloy smelting, Coal Chemical Industry, thermoelectricity
Filtration art is succeeded application.But it is in a corrosive environment after permanent use, the fragility tendency increase of material.Iron aluminium is answered
It is based on the oxide-film or passivating film that densification is formed in material surface to close the good decay resistance of porous material.But, it is closed
The high temperature air filtration environment of the industry such as stove ferroalloy smelting and Coal Chemical Industry is the reducing atmosphere of sulfur-bearing, the more difficult shape of material surface
Into fine and close passivating film, and the oxide-film of formation or the joint portion of passivating film and matrix are firm.
Chinese patent (200910074202.X) discloses a kind of method for preparing ferro-aluminum alloy porous material, uses first
The powder of iron content aluminium component, by the components by weight percent of design than mixing, slabbing or shaping base, pressure control is prepared using die forming
System prepares tubular parison in 50-300MPa, or using isostatic cool pressing, and isostatic pressure is controlled in 50-200MPa；Using pressureless sintering
Technique, 950-1250 DEG C, sintering atmosphere is hydrogen or decomposes ammonia or use vacuum-sintering, and crucial improvement is above-mentioned containing
The powder of iron aluminium component includes the iron powder and 300-1 μm of FexAly that particle diameter is 300-2 μm, and it has loose structure, and corrosion resistant
Erosion excellent performance, but it contains that Al is relatively low, and the clearance to fluorine is relatively low.
The content of the invention：
It is an object of the invention to provide a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant.Party's legal system
The ferro-aluminum composite materials property for obtaining is good, and hardness is big, and resistance to chemical corrosion is excellent.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 50-80min is carried out at 400-500 DEG C in metal capsule, then the billet after vacuum degassing is squeezed into
Type, finally carries out fixation rates, and ferro-aluminum composite blank is obtained；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, then carries out sensing heating to ferro-aluminum composite, high-hardness corrosion-resistant ferro-aluminum is obtained and answers
Condensation material.
Used as the preferred of above-mentioned technical proposal, in step (1), Al ingots, the content of Fe ingots are respectively：Al 63-80%, Fe
20-37%.
Used as the preferred of above-mentioned technical proposal, in step (1), heating in a vacuum furnace carries out melting and prepares Al-Fe alloys
The condition of billet is：680-870 DEG C, vacuum≤10-2Pa。
Used as the preferred of above-mentioned technical proposal, in step (1), the condition of the aerosolization is：Al-Fe alloy billet materials
Temperature is 680-870 DEG C, and aerosolization pouring temperature is 680-870 DEG C, and atomization atmosphere is the one kind in nitrogen, argon gas, helium.
Used as the preferred of above-mentioned technical proposal, in step (1), the condition of cold isostatic compaction is：80-180MPa, pressurize
Time is 10-40min.
Used as the preferred of above-mentioned technical proposal, in step (1), the condition of the extrusion forming is：Extrusion billet heating temperature
It is 350-480 DEG C to spend, and extrusion die temperature is 330-450 DEG C, and extrusion ratio is (5-16):1.
Used as the preferred of above-mentioned technical proposal, in step (1), the condition of the solid solution aging is：Solid solubility temperature is 400-
500 DEG C, soaking time is 0.5-3h, and water-cooled, water temperature is room temperature, and aging temp is 145-205 DEG C, and soaking time is 3-8h.
Used as the preferred of above-mentioned technical proposal, in step (2), high-frequency induction furnace vacuum is less than 0.1Pa, described lazy
Property gas be argon gas, nitrogen in one kind.
Used as the preferred of above-mentioned technical proposal, in step (2), the heating frequency of induction heater is 10-100KHz.
Used as the preferred of above-mentioned technical proposal, in step (2), the condition of induction heater treatment is：Each sensing heating
Time be 2-5s, the dead time, more than after 10min, continues sensing heating next time, until heating-up temperature is 500-700
℃。
Aluminium alloy is prone to oxidation, and one layer of relatively thin passivating film is formed on surface, plays certain protective effect, and subtracts
Light corrosion of the surrounding medium to it, but the surface of this tunic is typically uneven, there is more defect such as dislocation, cut
And field trash etc., when in the solution containing chlorion etc., the local failure of passivating film is easily caused, now at small cut
Exposed metal turns into anode, loses electronics, and metal is with ionic condition dissolution；Oxide-film near minor break is because of its corrosion resistance
Preferably can not react and turn into the negative electrode of corrosion cell, the anode current of formation constantly promotes corrosion rapidly to gold
Category internal extended, so as to form pit.And the present invention passes through induction heater to obtained iron aluminium composite material to its surface
Processed so that iron aluminium composite material surface forms the intermetallic compound of iron and aluminium, effectively increases the corrosion resistant of the material
Corrosion energy and anti-wear performance；
In preparation process, the process that aluminium element spreads in being rolled into a ball to ferro element is a Fast exothermic process to iron aluminum,
Pore structure can be not only formed, interlock type Reaction-diffusion terms is also easily formed and is caused local hole extension to be formed as crackle, shape
Into the cracking and internal flaw on surface, so as to cause obvious deformation and hole uneven, the present invention is cold etc. by reasonable adjusting
The condition of hydrostatic profile, and fixation rates are carried out successively to the material after vacuum degassing, extrusion forming so that obtained material
Material porosity is big, and hole is uniform, and mechanical property is good.
The invention has the advantages that：
(1) first in the obtained ferro-aluminum composite of the present invention, aluminium content is larger, is rolled into a ball to ferro element in chlorine element and spread
In, the condition in more pore structures, and reasonable terms preparation process of the present invention can be formed, it is to avoid when aluminium element extends
The generation of the crackle, cracking and internal flaw of formation, obtained material hole is uniform, and porosity is high, and mechanical property is good；
(2) present invention forms intermetallic compounds layer using the method for sensing heating treatment by ferro-aluminum surface, effectively
Improve the wear-resisting and decay resistance of material.
Specific embodiment：
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solution
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 50min is carried out at 400 DEG C in metal capsule, extrusion forming then is carried out to the billet after vacuum degassing, finally
Fixation rates are carried out, ferro-aluminum composite blank is obtained；
Wherein, Al ingots, the content of Fe ingots are respectively：Al 63%, Fe 37%；
In a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：680 DEG C, vacuum≤10-2Pa；
The condition of aerosolization is：Al-Fe alloy billet materials temperature is 680 DEG C, and aerosolization pouring temperature is 680 DEG C, mist
Change atmosphere is nitrogen；
The condition of cold isostatic compaction is：80MPa, the dwell time is 10min；
The condition of extrusion forming is：Extrusion billet heating-up temperature is 350 DEG C, and extrusion die temperature is 330 DEG C, and extrusion ratio is
5:1；
The condition of solid solution aging is：Solid solubility temperature is 400 DEG C, and soaking time is 0.5h, and water-cooled, water temperature is room temperature, timeliness
Temperature is 145 DEG C, and soaking time is 3h；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, and sensing heating is then carried out to ferro-aluminum composite, and the frequency for setting sensing heating is
10KHz, starts sensing heating, and the time of each sensing heating is 2s, and the dead time, more than after 10min, continues sense next time
Should heat, total carries out 10 sensing heatings, until surface heating-up temperature is 500 DEG C, high-hardness corrosion-resistant ferro-aluminum be obtained and is combined
Material；
Wherein, high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is argon gas.
Embodiment 2
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 80min is carried out at 500 DEG C in metal capsule, extrusion forming then is carried out to the billet after vacuum degassing, finally
Fixation rates are carried out, ferro-aluminum composite blank is obtained；
Wherein, Al ingots, the content of Fe ingots are respectively：Al 80%, Fe 20%；
In a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：870 DEG C, vacuum≤10-2Pa；
The condition of aerosolization is：Al-Fe alloy billet materials temperature is 870 DEG C, and aerosolization pouring temperature is 870 DEG C, mist
Change atmosphere is argon gas；
The condition of cold isostatic compaction is：180MPa, the dwell time is 40min；
The condition of extrusion forming is：Extrusion billet heating-up temperature is 480 DEG C, and extrusion die temperature is 450 DEG C, and extrusion ratio is
16:1；
The condition of solid solution aging is：Solid solubility temperature is 500 DEG C, and soaking time is 3h, and water-cooled, water temperature is room temperature, timeliness temperature
It is 205 DEG C to spend, and soaking time is 8h；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, and sensing heating is then carried out to ferro-aluminum composite, and the frequency for setting sensing heating is
100KHz, starts sensing heating, and the time of each sensing heating is 5s, and the dead time, more than after 10min, continues sense next time
Should heat, total carries out 5 sensing heatings, until surface heating-up temperature is 700 DEG C, high-hardness corrosion-resistant ferro-aluminum composite wood be obtained
Material；
Wherein, high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is argon gas.
Embodiment 3
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 70min is carried out at 420 DEG C in metal capsule, extrusion forming then is carried out to the billet after vacuum degassing, finally
Fixation rates are carried out, ferro-aluminum composite blank is obtained；
Wherein, Al ingots, the content of Fe ingots are respectively：Al 66%, Fe 34%；
In a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：700 DEG C, vacuum≤10-2Pa；
The condition of aerosolization is：Al-Fe alloy billet materials temperature is 700 DEG C, and aerosolization pouring temperature is 700 DEG C, mist
Change atmosphere is argon gas；
The condition of cold isostatic compaction is：100MPa, the dwell time is 20min；
The condition of extrusion forming is：Extrusion billet heating-up temperature is 370 DEG C, and extrusion die temperature is 350 DEG C, and extrusion ratio is
7:1；
The condition of solid solution aging is：Solid solubility temperature is 420 DEG C, and soaking time is 1h, and water-cooled, water temperature is room temperature, timeliness temperature
It is 160 DEG C to spend, and soaking time is 7h；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, and sensing heating is then carried out to ferro-aluminum composite, and the frequency for setting sensing heating is
30KHz, starts sensing heating, and the time of each sensing heating is 5s, and the dead time, more than after 10min, continues sense next time
Should heat, total carries out 5 sensing heatings, until surface heating-up temperature is 550 DEG C, high-hardness corrosion-resistant ferro-aluminum composite wood be obtained
Material；
Wherein, high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is argon gas.
Embodiment 4
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 60min is carried out at 440 DEG C in metal capsule, extrusion forming then is carried out to the billet after vacuum degassing, finally
Fixation rates are carried out, ferro-aluminum composite blank is obtained；
Wherein, Al ingots, the content of Fe ingots are respectively：Al 70%, Fe 30%；
In a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：740 DEG C, vacuum≤10-2Pa；
The condition of aerosolization is：Al-Fe alloy billet materials temperature is 740 DEG C, and aerosolization pouring temperature is 740 DEG C, mist
Change atmosphere is argon gas；
The condition of cold isostatic compaction is：120MPa, the dwell time is 20min；
The condition of extrusion forming is：Extrusion billet heating-up temperature is 400 DEG C, and extrusion die temperature is 380 DEG C, and extrusion ratio is
10:1；
The condition of solid solution aging is：Solid solubility temperature is 440 DEG C, and soaking time is 1.5h, and water-cooled, water temperature is room temperature, timeliness
Temperature is 170 DEG C, and soaking time is 6h；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, and sensing heating is then carried out to ferro-aluminum composite, and the frequency for setting sensing heating is
50KHz, starts sensing heating, and the time of each sensing heating is 5s, and the dead time, more than after 10min, continues sense next time
Should heat, total carries out 10 sensing heatings, until surface heating-up temperature is 600 DEG C, high-hardness corrosion-resistant ferro-aluminum be obtained and is combined
Material；
Wherein, high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is nitrogen.
Embodiment 5
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 65min is carried out at 460 DEG C in metal capsule, extrusion forming then is carried out to the billet after vacuum degassing, finally
Fixation rates are carried out, ferro-aluminum composite blank is obtained；
Wherein, Al ingots, the content of Fe ingots are respectively：Al 75%, Fe 25%；
In a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：750 DEG C, vacuum≤10-2Pa；
The condition of aerosolization is：Al-Fe alloy billet materials temperature is 750 DEG C, and aerosolization pouring temperature is 750 DEG C, mist
Change atmosphere is helium；
The condition of cold isostatic compaction is：120MPa, the dwell time is 30min；
The condition of extrusion forming is：Extrusion billet heating-up temperature is 420 DEG C, and extrusion die temperature is 400 DEG C, and extrusion ratio is
12:1；
The condition of solid solution aging is：Solid solubility temperature is 460 DEG C, and soaking time is 2h, and water-cooled, water temperature is room temperature, timeliness temperature
It is 180 DEG C to spend, and soaking time is 5h；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, and sensing heating is then carried out to ferro-aluminum composite, and the frequency for setting sensing heating is
80KHz, starts sensing heating, and the time of each sensing heating is 2s, and the dead time, more than after 10min, continues sense next time
Should heat, total carries out 5 sensing heatings, until surface heating-up temperature is 500 DEG C, high-hardness corrosion-resistant ferro-aluminum composite wood be obtained
Material；
Wherein, high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is argon gas.
Embodiment 6
A kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, comprises the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets,
And its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, then loads the billet after calm pressure
Vacuum degassing 55min is carried out at 480 DEG C in metal capsule, extrusion forming then is carried out to the billet after vacuum degassing, finally
Fixation rates are carried out, ferro-aluminum composite blank is obtained；
Wherein, Al ingots, the content of Fe ingots are respectively：Al 78%, Fe 22%；
In a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：830 DEG C, vacuum≤10-2Pa；
The condition of aerosolization is：Al-Fe alloy billet materials temperature is 830 DEG C, and aerosolization pouring temperature is 830 DEG C, mist
Change atmosphere is helium；
The condition of cold isostatic compaction is：160MPa, the dwell time is 35min；
The condition of extrusion forming is：Extrusion billet heating-up temperature is 460 DEG C, and extrusion die temperature is 420 DEG C, and extrusion ratio is
13:1；
The condition of solid solution aging is：Solid solubility temperature is 480 DEG C, and soaking time is 2.5h, and water-cooled, water temperature is room temperature, timeliness
Temperature is 180 DEG C, and soaking time is 4h；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is entered
Row is vacuumized or is passed through inert gas, and sensing heating is then carried out to ferro-aluminum composite, and the frequency for setting sensing heating is
50KHz, starts sensing heating, and the time of each sensing heating is 5s, and the dead time, more than after 10min, continues sense next time
Should heat, total carries out 10 sensing heatings, until surface heating-up temperature is 700 DEG C, high-hardness corrosion-resistant ferro-aluminum be obtained and is combined
Material；
Wherein, high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is argon gas.
Comparative example 1
Ferro-aluminum composite blank does not carry out fixation rates during preparing, and other preparation conditions and embodiment 6 are identical.
Comparative example 2
Do not carried out in the preparation process of ferro-aluminum composite blank vacuum degassing, extrusion forming treatment, directly by isostatic cool pressing into
The blank of type carries out fixation rates, and other preparation conditions and embodiment 6 are identical.
Comparative example 3
High-frequency induction heating treatment is not carried out to obtained ferro-aluminum composite blank, directly anodic oxygen is used on its surface
The method of change prepares layer oxide film, and other preparation conditions and embodiment 6 are identical.
Performance test is carried out to material obtained in the present invention below.
1st, porosity test
The porosity of porous material is measured using Archimedes's drainage.
2nd, hardness
The hardness test of composite employs Everone MH-6 type micro Vickerses.Sample is used into metallic phase mounting
The use of loaded load is 300gf to being measured after sample polishing, polishing after embedding machine edge sample, the load time is 5s.
3rd, tensile property
Gauge length is used in this experiment carries out room temperature tensile, 650 DEG C of stretchings for the cylinder sample of 5 × 25mm of Φ.Testing equipment
It is Instron type cupping machines.
4th, corrosion resistance
The etchant solution of chemical immersion corrosion test uses 3.5%NaCl, and corrosive liquid is added in the beaker of each immersion
It is 250ml to measure, more than general 20ml/cm2Surface to volume ratio requirement.To prevent the evaporation of solution in process of the test, the modeling of beaker mouth
Material film is covered.Experiment is 30 days using the method that is completely immersed in, abrasion cycle, and test temperature is room temperature.To remove dip etching sample
The corrosion product on surface, need to select it is a kind of only remove corrosion product and to the incorrosive removing liquid of matrix of samples.This experiment is used
Chemical cleaning method, will 10g CrO3With 25ml phosphoric acid distilled water dilutings to 500ml, 80 DEG C are heated to sample after corrosion
Cleaning 8min, to remove corrosion product.After being cleaned by ultrasonic through distilled water, alcohol after sample removing corrosion product, dry, weigh.
Sample is evaluated by extent of corrosion with rate of corrosion (C), and corrosion rate can be calculated using following formula：
C=(W0-W1)/W0
W0It is the quality before sample immersion corrosion, g；W1For sample immersion corrosion and remove the quality after corrosion product, g.
Test result is as shown in table 1：
Table 1
| Porosity, % | Hardness | Tensile strength, MPa | Rate of corrosion, | |
| Embodiment 1 | 45 | HV98.6 | 332 | 0.009 |
| Embodiment 2 | 47 | HV97.9 | 310 | 0.012 |
| Embodiment 3 | 45 | HV98.5 | 320 | 0.008 |
| Embodiment 4 | 42 | HV98.7 | 315 | 0.008 |
| Embodiment 5 | 45 | HV99.0 | 328 | 0.011 |
| Embodiment 6 | 47 | HV98.9 | 330 | 0.009 |
| Comparative example 1 | 12 | HV60.5 | 182 | 0.113 |
| Comparative example 2 | 15 | HV61.3 | 196 | 0.108 |
| Comparative example 3 | 30 | HV32.5 | 137 | 0.365 |
From the point of view of above-mentioned data, the present invention is added by reasonable adjusting solid solution aging and heat treatment condition by sensing
The hot obtained material porosity of stove treatment is big, and hardness is big, corrosion resistance is good, and mechanical property is good.
Claims (10)
1. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant, it is characterised in that comprise the following steps：
(1) Al ingots, Fe ingots are configured in proportion, heating in a vacuum furnace carries out melting and prepares Al-Fe alloy billets, and will
Its aerosol is melted into powder；The powder that aerosol is melted into is used into cold isostatic compaction, the billet after calm pressure is then loaded into metal
Vacuum degassing 50-80min is carried out at 400-500 DEG C in jacket, extrusion forming then is carried out to the billet after vacuum degassing, most
Fixation rates are used afterwards, and ferro-aluminum composite blank is obtained；
(2) obtained ferro-aluminum composite blank is placed in high-frequency induction furnace, and high-frequency induction furnace is taken out
Vacuum is passed through inert gas, then carries out sensing heating to ferro-aluminum composite, and high-hardness corrosion-resistant ferro-aluminum composite wood is obtained
Material.
2. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that
In step (1), Al ingots, the content of Fe ingots are respectively：Al 63-80%, Fe 20-37%.
3. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that
In step (1), in a vacuum furnace heating carry out melting and prepare the condition of Al-Fe alloy billets be：680-870 DEG C, vacuum≤
10-2Pa。
4. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that
In step (1), the condition of the aerosolization is：Al-Fe alloy billet materials temperature is 680-870 DEG C, aerosolization pouring temperature
It it is 680-870 DEG C, atomization atmosphere is the one kind in nitrogen, argon gas, helium.
5. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that
In step (1), the condition of cold isostatic compaction is：80-180MPa, the dwell time is 10-40min.
6. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that
In step (1), the condition of the extrusion forming is：Extrusion billet heating-up temperature is 350-480 DEG C, and extrusion die temperature is 330-
450 DEG C, extrusion ratio is (5-16):1.
7. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that
In step (1), the condition of the solid solution aging is：Solid solubility temperature is 400-500 DEG C, and soaking time is 0.5-3h, water-cooled, water temperature
It is room temperature, aging temp is 145-205 DEG C, and soaking time is 3-8h.
8. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that：
In step (2), high-frequency induction furnace vacuum is less than 0.1Pa, and the inert gas is the one kind in argon gas, nitrogen.
9. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, it is characterised in that：
In step (2), the heating frequency of induction heater is 10-100KHz.
10. a kind of preparation method of the ferro-aluminum composite of high rigidity highly corrosion resistant as claimed in claim 1, its feature exists
In in step (2), the condition of induction heater treatment is：The time of each sensing heating is 2-5s, and the dead time is more than
After 10min, continue sensing heating next time, until heating-up temperature is 500-700 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454231A (en) * | 2018-12-18 | 2019-03-12 | 湖北汽车工业学院 | A kind of preparation method of iron aluminium copper micropore filter material |
| CN112375944A (en) * | 2020-10-30 | 2021-02-19 | 宁波德业粉末冶金有限公司 | Compression valve seat for multifunctional oil leakage prevention hydraulic shock absorber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614060A (en) * | 2003-11-04 | 2005-05-11 | 中南大学 | Preparation of heat-resistant aluminium alloy |
| CN101984110A (en) * | 2010-12-07 | 2011-03-09 | 株洲硬质合金集团有限公司 | Preparation method of pre-alloy powder of ferrum-aluminum intermetallic compound Fe2Al5 |
| CN102031429A (en) * | 2010-12-29 | 2011-04-27 | 中国兵器工业第五二研究所 | High-Fe-V-Si heat-resistant aluminum alloy material and preparation method thereof |
-
2017
- 2017-03-14 CN CN201710149092.3A patent/CN106929711A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614060A (en) * | 2003-11-04 | 2005-05-11 | 中南大学 | Preparation of heat-resistant aluminium alloy |
| CN101984110A (en) * | 2010-12-07 | 2011-03-09 | 株洲硬质合金集团有限公司 | Preparation method of pre-alloy powder of ferrum-aluminum intermetallic compound Fe2Al5 |
| CN102031429A (en) * | 2010-12-29 | 2011-04-27 | 中国兵器工业第五二研究所 | High-Fe-V-Si heat-resistant aluminum alloy material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 冯艳等: "《镁合金和铝合金阳极材料》", 31 December 2015, 中南大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454231A (en) * | 2018-12-18 | 2019-03-12 | 湖北汽车工业学院 | A kind of preparation method of iron aluminium copper micropore filter material |
| CN109454231B (en) * | 2018-12-18 | 2021-02-05 | 湖北汽车工业学院 | Preparation method of iron-aluminum-copper alloy microporous filter material |
| CN112375944A (en) * | 2020-10-30 | 2021-02-19 | 宁波德业粉末冶金有限公司 | Compression valve seat for multifunctional oil leakage prevention hydraulic shock absorber |
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