CN108893699A - A kind of Al alloy composite of seawater corrosion resistance and preparation method thereof - Google Patents
A kind of Al alloy composite of seawater corrosion resistance and preparation method thereof Download PDFInfo
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- 238000005260 corrosion Methods 0.000 title claims abstract description 71
- 230000007797 corrosion Effects 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 41
- 239000013535 sea water Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000002245 particle Substances 0.000 claims abstract description 34
- 239000000956 alloy Substances 0.000 claims abstract description 28
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 26
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 21
- 238000005553 drilling Methods 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 238000002791 soaking Methods 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 230000032683 aging Effects 0.000 claims description 11
- 238000005243 fluidization Methods 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000001540 jet deposition Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000005764 inhibitory process Effects 0.000 claims description 2
- 238000000498 ball milling Methods 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 16
- 239000011159 matrix material Substances 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 238000001192 hot extrusion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910052571 earthenware Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000009718 spray deposition Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- -1 Al3+It forms compound Chemical class 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007745 plasma electrolytic oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/123—Spraying molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/217—Tube extrusion presses
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention provides a kind of Al alloy composite of seawater corrosion resistance, the composite material is made of aluminium alloy, reinforcement and corrosion inhibitor, the mass fraction of each element is Cu3.8~4.9%, Mg1.2~1.8%, Mn0.30~0.90% in the aluminium alloy, remaining is Al；The reinforcement is high-entropy alloy particle, and partial size is 20~50 μm, and shared percentage by volume is 15~20% in the composite, and the corrosion inhibitor is corrosion inhibiter, and shared percentage by volume is 5~10% in the composite, and partial size is 20~50 μm.
Description
Technical field
The invention belongs to Material Fields, and in particular to a kind of Al alloy composite and manufacturing method of seawater corrosion resistance.
Background technique
More and more to resource requirement as social development population is growing, current land near surface resource has been opened
It adopts excessively, resource must be found into Earth or ocean to meet social development demand.Due to being deposited in marine environment
It will cause aluminum alloy surface oxidation film passivation state unstability in the Cl- of high-content.Aluminium alloy is in the seawater largely by passivation
Oxidation film play a protective role, due to Cl-Ion is easy to and Al3+It forms compound and solubility is very high causes anode
Dissolution accelerates the corrosion of aluminium alloy.Cl- ion is very small to have very strong aperture penetration power, enables aluminum alloy to go out in the seawater
Existing local corrosion, such as spot corrosion, crevice corrosion etc..In addition, the variation rate of corrosion with ocean depth is also different, 500~
900 meters of depth bounds corrosion are the most serious, are 3 times of surface seawater.Therefore, the corrosion resistance for improving aluminium drill pipe is to be promoted
Aluminium alloy drills widely applied key in marine oil and gas.
Currently known seawater corrosion resistance drilling rod with method for preparing aluminum-based composite material be to micro-arc oxidation of aluminum alloy surface,
Electroplating surface and surface super hydrophobic etc..The anti-corrosion layer thickness of these types of method processing only has 40~60 μm, due in oil gas
Drilling rod will be constantly with silt, rock gouging abrasion in drilling process, and anti-corrosion layer will be worn after a period of time, expose
The still unavoidable situation by seawater corrosion of new basis material.It finds by prior art documents, Chinese patent
Notification number is:CN206256183U, the day for announcing be：2017.06.16 entitled:A kind of corrosion-resisting aluminium based composites,
Using aluminium, successively tin plating as substrate, zinc-plated acquisition corrosion-resisting aluminium based composites, this method disadvantage are the boundary of coating Yu substrate
Face combination is not firm, and surface abrasion resistance is poor, and mechanical property is low to be suitable for the lesser field of stress.Chinese patent notification number is:
106835233A, the day for announcing be：2017.06.13 entitled:Wear-resisting, etch-proof aluminium drill pipe preparation method and system
The aluminium drill pipe obtained, the invention obtain wear-resisting, etch-proof aluminium drill pipe using galvanoplastic, and disadvantage is that surface abrasion resistance is anti-
Rotten layer only has 40~60 μm, and service life is short and electrolytic cell waste liquid is to environment larger pollution.
Summary of the invention
The present invention is for disadvantage mentioned above from aluminum alloy materials essence is improved, and using aluminium alloy as substrate, high-entropy alloy is
Reinforcement, corrosion inhibiter are corrosion inhibitor, and the drilling rod of seawater corrosion resistance is prepared using jet deposition increasing material manufacturing and hot extrusion technique
Use aluminum matrix composite.Added high-entropy alloy has high rigidity, high intensity, wear-resisting, corrosion-resistant, high high-temp stability, with
Interfacial wettability and interface compatibility between alloy matrix aluminum is good.Therefore, drilling rod prepared by the present invention with aluminum matrix composite not
Only there is excellent wearability and resistance to corrosion seawater, and long service life.
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, mentioned by changing aluminum alloy materials essence
Its high resistance to corrosion seawater.The present invention provides the drilling rod aluminum matrix composite and increasing material manufacturing method of a kind of seawater corrosion resistance.
Realize that technical problem of the invention is adopted the technical scheme that：Use aluminium alloy for substrate, high-entropy alloy is to increase
Qiang Ti, corrosion inhibiter are resist, after aluminum alloy melting with high-entropy alloy, corrosion inhibiter particle together under high pressure nitrogen effect it is synchronous
Spray deposition obtains aluminum matrix composite slab on substrate.Then hot extrusion densification is carried out to slab, is squeezed into pipe
Material.Second level solid-solution and aging heat treatment finally is carried out to get the drilling rod aluminum matrix composite of seawater corrosion resistance to tubing.
The present invention provides a kind of Al alloy composite of seawater corrosion resistance, the composite material by aluminium alloy, reinforcement and
Corrosion inhibitor composition, the reinforcement are high-entropy alloy particle, and the corrosion inhibitor is corrosion inhibiter.
Shared percentage by volume is 15~20% to preferred reinforcement of the present invention in the composite, and corrosion inhibitor exists
Shared percentage by volume is 5~10% in composite material.
In preferred aluminium alloy of the present invention the mass fraction of each element be Cu3.8~4.9%, Mg1.2~1.8%,
Mn0.30~0.90%, remaining is Al.
Preferred high-entropy alloy particle of the present invention is TiCoCrFeNiAl, and partial size is 20~50 μm.
Preferred corrosion inhibiter of the present invention is enuatrol C17H35COONa, partial size are 20~50 μm.
The present invention provides a kind of preparation method of composite material, and this approach includes the following steps：
1) Al, Cu, Mn, Mg metal block are carried out that it is molten to be added to crucible for smelting furnace with substrate material is made by mass fraction
Change, aluminium alloy liquid is poured into atomizer；
2) by high-entropy alloy particle TiCoCrFeNiAl and inhibition agent composition in the ball mill with 100~150rpm revolving speed
Granularity reaches 200 mesh after 1~2h of mechanical ball mill, and the solid particle fluidisation for being filled into jet deposition equipment is sufficiently stirred in ultrasonic vibration
In conveyer；
3) being passed through air pressure in the conveyer and atomizer into step 1) and step 2) simultaneously is 0.7~0.85MPa nitrogen,
By aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture is atomized simultaneously, is sunk
Product obtains slab on substrate；
4) slab that step 3) obtains is put into heat extruder and is preheated to 380~500 DEG C, kept the temperature 30min, be in temperature
450 DEG C, extrusion ratio is 20~30, and extrusion speed is hot extruded into tubing under conditions of being 1~3mm/s.
5) the extruding tubing progress first order solution treatment obtained step 4), 470 ± 5 DEG C of solid solubility temperature, soaking time
2h；Tubing progress second level solution treatment after first order solution treatment, 490 ± 5 DEG C of solid solubility temperature, soaking time 1h, room temperature
Water cooling, transfer time≤12s；
6) by after second level solution treatment in step 5) tubing carry out artificial aging processing, 190 ± 5 DEG C of aging temp,
Soaking time 12h.
The present invention also provides the composite materials to prepare the application in drilling rod.
The beneficial effects of the invention are as follows：
The present invention is added to high rigidity, high intensity, wear-resisting, corrosion-resistant, high high-temp stability in aluminum alloy base material
High-entropy alloy and anti-seawater corrosion corrosion inhibiter, the tiny knot of tissue of ingredient even grained is obtained using spray deposition
Structure, organizes finer and close after hot extrusion, so that material essence improves its wearability and corrosion resistance, overcomes public affairs
Know corrosion-resisting aluminium based composites surface abrasion resistance and seawater corrosion resistance layer is thin, the heavy-polluted major defect of electroplate liquid, provides
A kind of simple process, easy to operate, material loss it is few and can large-scale production seawater corrosion resistance drilling rod aluminum matrix composite
And preparation method.
Detailed description of the invention
Fig. 1：The drilling rod of seawater corrosion resistance of the invention aluminum matrix composite preparation technology flow chart；
Fig. 2：Solid-liquid of the invention synchronizes same position atomising device operation principle schematic diagram；In figure：1- solid mixture, 2- aluminium
Aluminium alloy, 3- solid particle fluidize conveyer, 4- molten metal packet, and 5- closes valve, 6- sealing-plug
Specific embodiment
Below with reference to example is applied, the present invention will be further described in detail, but the present invention is not restricted to following embodiment.
Embodiment 1：A kind of drilling rod method for preparing aluminum-based composite material of seawater corrosion resistance, specific step is as follows：
1) substrate material that Al, Cu, Mn, Mg metal block prepare by mass fraction acquisition, is added to earthenware for raw material
Crucible smelting furnace is heated to 750~850 DEG C of fusings, keeps the temperature 30min, and aluminium alloy liquid is poured into atomizer；
2) by be 15% by percentage by volume high-entropy alloy particle TiCoCrFeNiAl and percentage by volume be 5% it is slow
Lose agent enuatrol C17H35COONa mixture is reached in the ball mill with granularity after 100~150rpm revolving speed mechanical ball mill, 1~2h
Polity's mixture of 200 mesh, ultrasonic vibration are sufficiently stirred in the solid particle fluidisation conveyer for being filled into jet deposition equipment；
3) being passed through air pressure in the conveyer and atomizer into step 1) and step 2) simultaneously is 0.7~0.85MPa nitrogen,
By aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture is atomized simultaneously, is sunk
Product obtains slab on substrate；The specific operation process of the step is：The aluminium alloy liquid that step 1) is obtained is defeated by crucible
Enter into molten metal packet 4；The mixture ultrasonic vibration obtained in step 2) is sufficiently stirred and is filled into consolidating for jet deposition equipment
In the grain fluidized conveyer 3 of body；At this point, being in closed state between solid particle fluidisation conveyer 3 and molten metal packet 4, prevent
Molten metal leakage.Closing valve 5 in solid particle fluidisation conveyer 3, which is also at closed state, prevents solid particle from leaking；It will close
Valve closing 5 open, conveyer 3 be lifted, while by step 3) conveyer 3 and molten metal packet 4 be passed through air pressure be 0.7~
0.85MPa nitrogen is by aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture
Synchronous atomization is deposited on substrate and obtains the tiny slab of ingredient even grained；
4) slab that step 3) obtains is put into heat extruder and is preheated to 450 DEG C, keep the temperature 30min, be squeezing temperature
450 DEG C, extrusion ratio 25, extrusion speed is hot extruded into tubing under conditions of being 2mm/s.
5) the extruding tubing progress first order solution treatment obtained step 4), 470 ± 5 DEG C of solid solubility temperature, soaking time
2h；Tubing progress second level solution treatment after first order solution treatment, 490 ± 5 DEG C of solid solubility temperature, soaking time 1h, room temperature
Water cooling, transfer time≤12s；
6) by after second level solution treatment in step 5) tubing carry out artificial aging processing, 190 ± 5 DEG C of aging temp,
Soaking time 12h.
Through detecting, the drilling rod aluminum matrix composite for the seawater corrosion resistance that the present embodiment 1 obtains, even tissue, reinforcement
With corrosion inhibiter Dispersed precipitate, crystal grain is tiny, and comprehensive mechanical property and salt fog resistance are good.Microhardness HB150；Tensile strength
560MP；Yield strength 500MP；Salt fog resistance is not corroded up to 320h or more.
Embodiment 2：A kind of drilling rod method for preparing aluminum-based composite material of seawater corrosion resistance, specific step is as follows：
1) substrate material that Al, Cu, Mn, Mg metal block prepare by mass fraction acquisition, is added to earthenware for raw material
Crucible smelting furnace is heated to 750~850 DEG C of fusings, keeps the temperature 30min, and aluminium alloy liquid is poured into atomizer；
2) by be 17% by percentage by volume high-entropy alloy particle TiCoCrFeNiAl and percentage by volume be 7% it is slow
Lose agent enuatrol C17H35COONa mixture is reached in the ball mill with granularity after 100~150rpm revolving speed mechanical ball mill, 1~2h
Polity's mixture of 200 mesh, ultrasonic vibration are sufficiently stirred in the solid particle fluidisation conveyer for being filled into jet deposition equipment；
3) being passed through air pressure in the conveyer and atomizer into step 1) and step 2) simultaneously is 0.7~0.85MPa nitrogen,
By aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture is atomized simultaneously, is sunk
Product obtains slab on substrate.The specific operation process of the step is：The aluminium alloy liquid that step 1) is obtained is defeated by crucible
Enter into molten metal packet 4；The mixture ultrasonic vibration obtained in step 2) is sufficiently stirred and is filled into consolidating for jet deposition equipment
In the grain fluidized conveyer 3 of body；At this point, being in closed state between solid particle fluidisation conveyer 3 and molten metal packet 4, prevent
Molten metal leakage.Closing valve 5 in solid particle fluidisation conveyer 3, which is also at closed state, prevents solid particle from leaking；It will close
Valve closing 5 open, conveyer 3 be lifted, while by step 3) conveyer 3 and molten metal packet 4 be passed through air pressure be 0.7~
0.85MPa nitrogen is by aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture
Synchronous atomization is deposited on substrate and obtains the tiny slab of ingredient even grained；
4) slab that step 3) obtains is put into heat extruder and is preheated to 450 DEG C, keep the temperature 30min, be squeezing temperature
450 DEG C, extrusion ratio 25, extrusion speed is hot extruded into tubing under conditions of being 2mm/s.
5) the extruding tubing progress first order solution treatment obtained step 4), 470 ± 5 DEG C of solid solubility temperature, soaking time
2h；Tubing progress second level solution treatment after first order solution treatment, 490 ± 5 DEG C of solid solubility temperature, soaking time 1h, room temperature
Water cooling, transfer time≤12s；
6) by after second level solution treatment in step 5) tubing carry out artificial aging processing, 190 ± 5 DEG C of aging temp,
Soaking time 12h.
Through detecting, the drilling rod aluminum matrix composite for the seawater corrosion resistance that the present embodiment obtains, even tissue, reinforcement and
Corrosion inhibiter Dispersed precipitate, crystal grain is tiny, and comprehensive mechanical property and salt fog resistance are good.Microhardness HB156；Tensile strength 580MP；
Yield strength 520MP；Salt fog resistance is not corroded up to 360h or more.
Embodiment 3：A kind of drilling rod method for preparing aluminum-based composite material of seawater corrosion resistance, specific step is as follows：
1) substrate material that Al, Cu, Mn, Mg metal block prepare by mass fraction acquisition, is added to earthenware for raw material
Crucible smelting furnace is heated to 750~850 DEG C of fusings, keeps the temperature 30min, and aluminium alloy liquid is poured into atomizer；
2) by be 20% by percentage by volume high-entropy alloy particle TiCoCrFeNiAl and percentage by volume be 10%
Corrosion inhibiter enuatrol C17H35COONa mixture is reached in the ball mill with granularity after 100~150rpm revolving speed mechanical ball mill, 1~2h
To polity's mixture of 200 mesh, ultrasonic vibration is sufficiently stirred in the solid particle fluidisation conveyer for being filled into jet deposition equipment；
3) being passed through air pressure in the conveyer and atomizer into step 1) and step 2) simultaneously is 0.7~0.85MPa nitrogen,
By aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture is atomized simultaneously, is sunk
Product obtains slab on substrate.The specific operation process of the step is：The aluminium alloy liquid that step 1) is obtained is defeated by crucible
Enter into molten metal packet 4；The mixture ultrasonic vibration obtained in step 2) is sufficiently stirred and is filled into consolidating for jet deposition equipment
In the grain fluidized conveyer 3 of body；At this point, being in closed state between solid particle fluidisation conveyer 3 and molten metal packet 4, prevent
Molten metal leakage.Closing valve 5 in solid particle fluidisation conveyer 3, which is also at closed state, prevents solid particle from leaking；It will close
Valve closing 5 open, conveyer 3 be lifted, while by step 3) conveyer 3 and molten metal packet 4 be passed through air pressure be 0.7~
0.85MPa nitrogen is by aluminum alloy melt and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture
Synchronous atomization is deposited on substrate and obtains the tiny slab of ingredient even grained；
4) slab that step 3) obtains is put into heat extruder and is preheated to 450 DEG C, keep the temperature 30min, be squeezing temperature
450 DEG C, extrusion ratio 25, extrusion speed is hot extruded into tubing under conditions of being 2mm/s.
5) the extruding tubing progress first order solution treatment obtained step 4), 470 ± 5 DEG C of solid solubility temperature, soaking time
2h；Tubing progress second level solution treatment after first order solution treatment, 490 ± 5 DEG C of solid solubility temperature, soaking time 1h, room temperature
Water cooling, transfer time≤12s；
6) by after second level solution treatment in step 5) tubing carry out artificial aging processing, 190 ± 5 DEG C of aging temp,
Soaking time 12h.
Through detecting, the drilling rod aluminum matrix composite for the seawater corrosion resistance that the present embodiment obtains, even tissue, reinforcement and
Corrosion inhibiter Dispersed precipitate, crystal grain is tiny, and comprehensive mechanical property and salt fog resistance are good.Microhardness HB160；Tensile strength 590MP；
Yield strength 530MP, salt fog resistance are not corroded up to 410h or more.
By the drilling rod aluminum matrix composite of seawater corrosion resistance prepared by above-mentioned 3 kinds of embodiment methods and many experiments
And increasing material manufacturing method, it is added in aluminum alloy base material with high rigidity, high intensity, wear-resisting, corrosion-resistant, high high-temp stability
High-entropy alloy and anti-seawater corrosion corrosion inhibiter, the tiny knot of tissue of ingredient even grained is obtained using spray deposition
Structure, organizes finer and close after hot extrusion, so that material essence improves its wearability and corrosion resistance, overcomes public affairs
Know corrosion-resisting aluminium based composites surface abrasion resistance and seawater corrosion resistance layer is thin, the heavy-polluted major defect of electroplate liquid, provides
A kind of simple process, easy to operate, material loss it is few and can large-scale production seawater corrosion resistance drilling rod aluminum matrix composite
And preparation method.
Particular embodiments described above, to the purpose of the present invention, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (7)
1. a kind of Al alloy composite of seawater corrosion resistance, which is characterized in that the composite material is by aluminium alloy, reinforcement and resists
Corrosive agent composition, the reinforcement are high-entropy alloy particle, and the corrosion inhibitor is corrosion inhibiter.
2. composite material according to claim 1, which is characterized in that the reinforcement shared volume hundred in the composite
Score is 15~20%, and shared percentage by volume is 5~10% to corrosion inhibitor in the composite.
3. composite material according to claim 1, which is characterized in that the mass fraction of each element is in the aluminium alloy
Cu3.8~4.9%, Mg1.2~1.8%, Mn0.30~0.90%, remaining is Al.
4. composite material according to claim 1, which is characterized in that the high-entropy alloy particle is TiCoCrFeNiAl,
Its partial size is 20~50 μm.
5. composite material according to claim 1, which is characterized in that the corrosion inhibiter is enuatrol C17H35COONa, grain
Diameter is 20~50 μm.
6. the preparation method of composite material according to claim 1-5, which is characterized in that this method includes following
Step：
1) Al, Cu, Mn, Mg metal block are carried out being added to the fusing of crucible for smelting furnace, aluminium with substrate material is made by mass fraction
Alloy liquid is poured into atomizer；
2) high-entropy alloy particle TiCoCrFeNiAl and inhibition agent composition is mechanical with 100~150rpm revolving speed in the ball mill
Granularity reaches 200 mesh after 1~2h of ball milling, and the solid particle fluidisation conveying for being filled into jet deposition equipment is sufficiently stirred in ultrasonic vibration
In device；
3) being passed through air pressure in the conveyer and atomizer into step 1) and step 2) simultaneously is 0.7~0.85MPa nitrogen, by aluminium
Aluminium alloy and high-entropy alloy particle TiCoCrFeNiAl and corrosion inhibiter enuatrol C17H35COONa mixture is atomized simultaneously, is deposited on
Slab is obtained on substrate；
4) slab that step 3) obtains is put into heat extruder and is preheated to 380~500 DEG C, keep the temperature 30min, be 450 in temperature
DEG C, extrusion ratio is 20~30, and extrusion speed is hot extruded into tubing under conditions of being 1~3mm/s.
5) the extruding tubing progress first order solution treatment obtained step 4), 470 ± 5 DEG C of solid solubility temperature, soaking time 2h；The
Tubing progress second level solution treatment after level-one solution treatment, 490 ± 5 DEG C of solid solubility temperature, soaking time 1h, room temperature water cooling,
Transfer time≤12s；
6) tubing after second level solution treatment in step 5) is subjected to artificial aging processing, 190 ± 5 DEG C of aging temp, kept the temperature
Time 12h.
7. composite material according to claim 1-5 is preparing the application in drilling rod.
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