CN104131204B - Magnesium alloy, magnesium alloy composite material and preparation method of composite material - Google Patents
Magnesium alloy, magnesium alloy composite material and preparation method of composite material Download PDFInfo
- Publication number
- CN104131204B CN104131204B CN201410409421.XA CN201410409421A CN104131204B CN 104131204 B CN104131204 B CN 104131204B CN 201410409421 A CN201410409421 A CN 201410409421A CN 104131204 B CN104131204 B CN 104131204B
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- alloy
- composite material
- corrosion layer
- corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Physical Vapour Deposition (AREA)
Abstract
The invention provides a magnesium alloy composite material which comprises magnesium alloy and a corrosion-resistant layer compounded on the surface of the magnesium alloy, wherein the magnesium alloy comprises 0wt%-2wt% of Zn, 0wt%-2wt% of Ca, 0wt%-2wt% of Sm, 0wt%-6wt% of Y and the balance of Mg; the corrosion-resistant layer comprises hafnium carbide, tantalum carbide or zirconium carbide. The magnesium alloy is high in mechanical strength and good in corrosion resistance; the corrosion-resistant layer is high in hardness, good in corrosion resistance and good in adhesion to the magnesium alloy. An experimental result shows that according to the magnesium alloy composite material, the tensile strength is more than 400MPa, the yield strength is more than 280MPa, the elongation rate is more than 7%, the surface Vickers hardness Hv0.2 is more than 102, and the adhesive strength of the corrosion-resistant layer and the magnesium alloy reaches more than the level 5B (ASTM (American Society for Testing Material)).
Description
Technical field
The invention belongs to alloy field, more particularly, to a kind of magnesium alloy, composite material of magnesium alloy and preparation method thereof.
Background technology
Magnesium alloy is the alloy adding other elements composition with magnesium for base, have that density is little, specific strength is high, damping and amortization good,
Electromagnetic shielding capability is strong, dimensionally stable, the advantages of easily reclaim, in fields such as aircraft industry, automobile, plant equipment, electronic products
There is boundless application prospect, be referred to as " green engineering material of 21 century ".
China is that former magnesium produces and big export country, but the research of China's magnesium alloy and application and development relatively lag behind, wherein
One is that the Anticorrosion Problems of magnesium alloy are not solved well the reason important.Magnesium is changed in all Industrial Metal materials
Learn active highest, humid air, sulfur-bearing atmosphere and marine atmosphere all can suffer from serious chemical attack.In addition, the mark of magnesium
Collimator electrode current potential is only -2.37v, can react with the impurity in alloy as anode, and galvanic corrosion occurs.Therefore, magnesium to be expanded
The range of alloy, gives full play to its superior performance, is necessary for improving the decay resistance of magnesium alloy.
The method improving corrosion resistance of magnesium alloy energy in prior art is broadly divided into two kinds: (1) is passed through to add alloying unit
Element reduces the content of impurity in magnesium alloy, and improves alloy structure and the distribution of the second phase using thermal deformation processing；(2) using micro-
The process of surface treatment such as arc oxidation, plating, chemical plating, surface coating prepare the protective coating of corrosion resistance, and this coating can be kept away
Exempt from the directly contact of magnesium alloy substrate and external environment, and then carry heavy alloyed decay resistance.But, the magnesium of preparation closes at present
The decay resistance of gold is still poor.
Content of the invention
In view of this, it is an object of the invention to provide a kind of magnesium alloy, composite material of magnesium alloy and preparation method thereof, this
The magnesium alloy that invention provides and composite material of magnesium alloy have good decay resistance.
The invention provides a kind of magnesium alloy, including following components:
It is less than or equal to the zn of 2wt% more than 0；
It is less than or equal to the ca of 2wt% more than 0；
It is less than or equal to the sm of 2wt% more than 0；
It is less than or equal to the y of 6wt% more than 0；
The mg of surplus.
Preferably, including the zn of 0.2～1wt%.
Preferably, including the ca of 0.2～1wt%.
Preferably, including the sm of 0.2～1wt%.
Preferably, including the y of 1～4wt%.
The invention provides a kind of composite material of magnesium alloy, comprising:
Magnesium alloy described in technique scheme；
It is compounded in the anti-corrosion layer of described Mg alloy surface；
Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.
Preferably, in described anti-corrosion layer, carbon content is 25～70at%.
The invention provides a kind of preparation method of composite material of magnesium alloy, comprising:
Using magnetron sputtering method in technique scheme described in Mg alloy surface deposition anti-corrosion layer, obtain magnesium alloy multiple
Condensation material；
Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.
Preferably, the sputter gas using during described deposition anti-corrosion layer are argon gas, and reacting gas is methane.
Preferably, described methane and the volume ratio of argon gas are 1～20:80.
Compared with prior art, the invention provides a kind of magnesium alloy, it is less than or equal to 2wt% including following components: greater than 0
Zn；It is less than or equal to the ca of 2wt% more than 0；It is less than or equal to the sm of 2wt% more than 0；It is less than or equal to the y of 6wt% more than 0；Surplus
Mg.The magnesium alloy that the present invention provides contains zinc, calcium, yttrium and samarium element.Add appropriate Zn-ef ficiency in the magnesium alloy can carry
The intensity of high magnesium alloy and hardness；Add the decay resistance that appropriate calcium constituent can improve magnesium alloy in the magnesium alloy；?
Add appropriate yttrium in magnesium alloy and samarium element with reinforced magnesium alloy fine grain, can reduce the cathodic process of objectionable impurities, improve magnesium
The mechanical property of alloy and decay resistance.
Present invention also offers a kind of composite material of magnesium alloy, comprising: the magnesium alloy described in technique scheme；It is compounded in
The anti-corrosion layer of described Mg alloy surface；Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.The magnesium that the present invention provides
Alloy composite materials are compounded with the anti-corrosion layer containing hafnium carbide, ramet or zirconium carbide of densification in Mg alloy surface, have
Good mechanical strength, corrosion resistance and wearability, anti-corrosion layer is high with the bond strength of alloy substrate, difficult for drop-off.Experiment
Result shows, the tensile strength of the composite material of magnesium alloy that the present invention provides in more than 400mpa, yield strength 280mpa with
On, elongation percentage is more than 7%, and surface Vickers hardness hv0.2 is more than 102, and anti-corrosion layer reaches 5b level with the bond strength of magnesium alloy
(astm) more than.Corrosion potential in 3.5wt%nacl solution for this composite material of magnesium alloy is -1.3v, corrosion electric current density
For 1.0～5.0 × 10-6a/cm2.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
Fig. 1 is composite material of magnesium alloy production technological process provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The invention provides a kind of magnesium alloy, including following components:
It is less than or equal to the zn of 2wt% more than 0；
It is less than or equal to the ca of 2wt% more than 0；
It is less than or equal to the sm of 2wt% more than 0；
It is less than or equal to the y of 6wt% more than 0；
The mg of surplus.
The magnesium alloy that the present invention provides includes zn, ca, sm, y and mg.Wherein, described zn content in the magnesium alloy is big
It is less than or equal to 2wt%, preferably 0.2～1wt% in 0.The addition of zn can form mgzn phase with mg, improves the intensity of magnesium alloy
And hardness.
Described ca content in the magnesium alloy is to be less than or equal to 2wt%, preferably 0.2～1wt% more than 0.The addition of ca
The corrosion of mg in alloy can effectively be slowed down, improve the decay resistance of magnesium alloy.
Described sm content in the magnesium alloy is to be less than or equal to 2wt%, preferably 0.2～1wt% more than 0.Described y is in magnesium
Content in alloy is to be less than or equal to 6wt%, preferably 1～4wt% more than 0.Sm and y is added in magnesium alloy and can purify conjunction
Golden melt, refining alloy is organized, and improves alloy mechanical property.Meanwhile, sm and y can reduce objectionable impurities in magnesium alloy (iron, nickel
Deng) cathodic process, thus improving the corrosion resistance of magnesium alloy substrate.In addition, the addition of sm and y makes Mg alloy surface be formed more
Plus the corrosion products film of densification, can effectively suppress the corrosion further of alloy.
Magnesium alloy provided by the present invention can prepare according to following steps:
First by mg source, zn source, ca source, sm source and y source melting mixing, obtain alloy melt, then described alloy is melted
Body sequentially passes through casting, machining and pressure processing, obtains magnesium alloy.
Described mg source is preferably in magnesium simple substance, mg-ca intermediate alloy, mg-sm intermediate alloy and mg-y intermediate alloy
Plant or multiple, more preferably magnesium simple substance；Described zn source is preferably zinc simple substance；Described ca source is preferably in calcium simple substance and/or mg-ca
Between alloy, more preferably mg-ca intermediate alloy, in described mg-ca intermediate alloy ca content be preferably 20～40wt%, more preferably
For 25～35wt%；Described sm source is preferably samarium simple substance and/or mg-sm intermediate alloy, more preferably mg-sm intermediate alloy, institute
State sm content in mg-sm intermediate alloy and be preferably 10～30wt%, more preferably 15～25wt%；Described y source is preferably yttrium list
One or more of matter, mg-y intermediate alloy and rich y mischmetal, more preferably mg-y intermediate alloy, in the middle of described mg-y
In alloy, y content is preferably 10～30wt%, more preferably 15～25wt%.
The present invention carries out removing surface to described mg source, zn source, ca source, sm source and y source preferably before preparing magnesium alloy,
The method of removing surface is specially deionized water and rinses, and dries.
By the mg source after removing surface, zn source, ca source, sm source and y source melting mixing, this process particularly as follows:
In the presence of protective gas, first melting is heated in mg source, obtain mg melt, in mg melt, then add zn
Source, ca source, sm source and y source, stir and stand, obtain alloy melt.Described protective gas is preferably co2And sf6Mixing
Gas, described co2And sf6Volume ratio be preferably 30～50:1；The temperature of described melting is preferably 730～800 DEG C, more preferably
For 740～760 DEG C；The time of described standing is preferably 10～30min.
The present invention is preferably before described zn source, ca source, sm source and y source add mg melt to zn source, ca source, sm source and y
Source is preheated, and does not need when being calcium simple substance when ca source ca source is preheated.The temperature of described preheating is preferably 250～350 DEG C,
More preferably 290～310 DEG C；The time of described preheating is preferably 0.5～2h.
The present invention is not particularly limited to the equipment of described melting mixing, can adopt well formula well known to those skilled in the art
Resistance furnace.
After obtaining alloy melt, described alloy melt is cast by the present invention, obtains alloy pig.The present invention preferably first will
Described alloy melt is cooled to 710～725 DEG C, then is cast.
After casting, machining is carried out to the alloy pig obtaining, obtains sheet alloy.The present invention is to described machining
Technique and parameter are not particularly limited, using technique and the parameter of machining well known to those skilled in the art.
The present invention preferably carries out Homogenization Treatments and water quenching to alloy pig before mechanical machining.The temperature of described Homogenization Treatments
Degree is preferably 350～500 DEG C, more preferably 400～450 DEG C；The time of described Homogenization Treatments is preferably 2～48h, more preferably
For 8～24h；The temperature of described water quenching is preferably 60～80 DEG C.
After machining, pressure processing is carried out to the sheet alloy obtaining, to further enhance the mechanical property of magnesium alloy.
The present invention is not particularly limited to the method for described pressure processing, preferably hot rolling or hot extrusion, more preferably hot rolling.Described heat
The temperature rolled is preferably 360～400 DEG C；The compacting speed of described hot rolling is preferably 50～300mm/s；Under the stagnation pressure of described hot rolling
Amount is preferably 40～90%；The draught per pass of described hot rolling is preferably 8～10%；Between the neighboring track time of described hot rolling
Annealing time is preferably 10～20min.
After pressure processing, obtain magnesium alloy.Magnesium alloy after preferred pair pressure processing of the present invention carries out stress relief annealing, institute
The temperature stating stress relief annealing is preferably 100～300 DEG C, more preferably 150～250 DEG C；The time of described stress relief annealing is excellent
Elect 0.5～6h, more preferably 1～4h as.
The magnesium alloy that the present invention provides includes zn, ca, sm, y and mg, possesses excellent decay resistance and good machinery
Performance.
The invention provides a kind of composite material of magnesium alloy, comprising:
Magnesium alloy described in technique scheme；
It is compounded in the anti-corrosion layer of described Mg alloy surface；
Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.
The composite material of magnesium alloy that the present invention provides, with magnesium alloy as base material, has anti-corrosion layer in its surface recombination.Described
Anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.Described anti-corrosion layer is uniform, fine and close, can effectively improve magnesium alloy
Corrosion resistance and case hardness.
The composite material of magnesium alloy that the present invention provides includes being compounded in the anti-corrosion layer of described Mg alloy surface, described corrosion resistant
Containing hafnium carbide, ramet or zirconium carbide in erosion layer, preferably comprise hafnium carbide.In described anti-corrosion layer carbon content be preferably 25～
70at%, more preferably 40～60at%；The thickness of described anti-corrosion layer is preferably 1～10 μm, more preferably 3～5 μm.
The composite material of magnesium alloy that the present invention provides includes magnesium alloy and is compounded in the anti-corrosion layer of Mg alloy surface, described
Magnesium alloy high mechanical strength, corrosion resistance is strong；Described anti-corrosion layer hardness is high, and corrosion resistance is strong, good with the associativity of magnesium alloy.
Test result indicate that, in more than 400mpa, yield strength exists the tensile strength of the composite material of magnesium alloy that the present invention provides
More than 280mpa, elongation percentage is more than 7%, and surface Vickers hardness hv0.2 is more than 102, the bond strength of anti-corrosion layer and magnesium alloy
Reach more than 5b level (astm).This composite material of magnesium alloy corrosion potential in 3.5wt%nacl solution is -1.3v, corrosion current
Density is 1.0～5.0 × 10-6a/cm2.
The invention provides a kind of preparation method of composite material of magnesium alloy, comprising:
Using magnetron sputtering method in technique scheme described in Mg alloy surface deposition anti-corrosion layer, obtain magnesium alloy multiple
Condensation material；
Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.
The present invention prepares composite material of magnesium alloy using magnetron sputtering method, and this process specifically includes:
Described magnesium alloy is put in magnetron sputtering apparatus as substrate, be passed through into magnetron sputtering apparatus sputter gas and
The mixed gas of reacting gas, with hafnium carbide, ramet, zirconium carbide, hafnium, tantalum or zirconium as sputtering target, sink in described substrate surface
Long-pending anti-corrosion layer, obtains composite material of magnesium alloy.Described sputter gas are preferably argon gas；Described reacting gas is preferably methane；
Described methane is preferably 1～20:80 with the volume ratio of argon gas.In magnetron sputtering process, sputtering pressure is preferably 0.2～2pa；
Biasing force is preferably -250～-100v；Sputtering current density is preferably 0.01～0.02a/cm2；Target-substrate distance be preferably 50～
80mm；Base reservoir temperature is preferably 25～250 DEG C, more preferably 100～200 DEG C.
Before deposition anti-corrosion layer, Mg alloy surface described in preferred pair carries out degreasing and pickling, to remove magnesium alloy table
The dirt in face.
After Mg alloy surface completes the deposition of anti-corrosion layer, preferred pair of the present invention its carry out vacuum annealing, thus removing
Interfacial stress between magnesium alloy and anti-corrosion layer, and discharge the residual stress in part anti-corrosion layer.Described vacuum annealing
Temperature is preferably 130～170 DEG C, more preferably 140～160 DEG C；The time of described vacuum annealing is preferably 0.5～3h, more excellent
Elect 0.5～1.5h as.
The preparation method of the composite material of magnesium alloy that the present invention provides can be prepared one layer in Mg alloy surface and have height concurrently
Corrosion resistance and the anti-corrosion layer of excellent abrasive resistance, this anti-corrosion layer is high with the bond strength of magnesium alloy, difficult for drop-off.
Below in conjunction with the accompanying drawings the preparation method of the composite material of magnesium alloy that the present invention provides is described in detail, referring to figure
1, Fig. 1 is composite material of magnesium alloy production technological process provided in an embodiment of the present invention, the steps include: first by mg source, zn
Source, ca source, sm source and y source melting mixing, obtain magnesium alloy fused mass, then by described magnesium alloy fused mass ingot casting, obtain alloy pig,
Then described alloy pig is made sheet material by machining, afterwards hot rolling treatment is carried out to sheet material, finally by magnetron sputtering
Mg alloy surface deposition anti-corrosion layer after hot rolling treatment, obtains composite material of magnesium alloy.
Described mg source, the specific process parameter in zn source, the source in ca source, sm source and y source and each step and above-mentioned skill
Art scheme is consistent, will not be described here.
For the sake of becoming apparent from, below by following examples, the present invention is described in detail.
Embodiment 1
With absolute ethyl alcohol to the mg of purity 99.6%, the zn of purity 99.5%, the mg-20wt%y of purity 98.0% in the middle of
The mg-20wt%sm intermediate alloy of alloy, the mg-30wt%ca intermediate alloy of purity 98.0% and purity 98.0% carries out surface
Cleaning, and deionized water flushing, drying.
In the middle of the mg-20wt%y intermediate alloy after above-mentioned drying, mg-30wt%ca intermediate alloy, mg-20wt%sm
Alloy and zn preheat under the conditions of 300 DEG C.
Mg 4700g after above-mentioned drying is put in well formula resistance furnace, is passed through co2+sf6(40:1) mixed gas,
Heat under the conditions of 750 DEG C.After mg is completely melt, above-mentioned zn 10g, mg-20wt%y intermediate alloy 250g of addition preheating 1h,
Mg-30wt%ca intermediate alloy 34g and mg-20wt%sm intermediate alloy 50g, stirs, and stands 20 minutes, is cooled to 720
DEG C it is cast in 45# steel permanent mold, obtain cast alloy.
Cast alloy is carried out at 400 DEG C with the Homogenization Treatments of 8h, and carries out 70 DEG C of water quenchings.Then pass through machining system
Standby go out 200 × 300 × 10mm3Sheet material, at 360 DEG C, sheet material is rolled, overall reduction is 90%, and draught per pass is
10%, rolling speed is 300mm/s, and the annealing time between neighboring track time is 10 minutes.After rolling, alloy is carried out at 150 DEG C
The stress relief annealing of 1h, obtains the magnesium alloy that composition is mg-1wt%y-0.2wt%zn-0.2wt%ca-0.2wt%sm.
Surface degreasing, pickling are carried out to above-mentioned magnesium alloy, then described magnesium alloy is put into magnetron sputtering as substrate and set
Standby interior, it is passed through ar+ch into magnetron sputtering apparatus4(95:5) mixed gas, setting sputtering pressure be 0.2pa, bias for-
100v, sputtering current density is 0.01a/cm2, base reservoir temperature be 100 DEG C, target-substrate distance be 60mm, with hafnium carbide as sputtering target,
Mg alloy surface deposits anti-corrosion layer, obtains 3 μm of anti-corrosion layer thickness, the magnesium alloy composite wood of anti-corrosion layer c content 32at%
Material.
At 150 DEG C, 1h vacuum annealing is carried out to the composite material of magnesium alloy obtaining, removes the interface of alloy and anti-corrosion layer
Stress, and discharge the residual stress in part anti-corrosion layer.
Performance test is carried out to the composite material of magnesium alloy after above-mentioned vacuum annealing, result shows, this magnesium alloy composite wood
The room temperature tensile intensity of material and yield strength are respectively 400～420mpa and 280～300mpa, and elongation percentage is 12～15%, resistance to
Corrosion layer reaches more than 5b level (astm), surface Vickers hardness hv0.2=102～103 with the bond strength of alloy.This magnesium alloy
Corrosion potential in 3.5wt%nacl solution for the composite is -1.3v, and corrosion electric current density is 1.0～5.0 × 10-6a/
cm2.
Embodiment 2
With absolute ethyl alcohol to the mg of purity 99.6%, the zn of purity 99.5%, the mg-20wt%y of purity 98.0% in the middle of
The mg-20wt%sm intermediate alloy of alloy, the mg-30wt%ca intermediate alloy of purity 98.0% and purity 98.0% carries out surface
Cleaning, and deionized water flushing, drying.
In the middle of the mg-20wt%y intermediate alloy after above-mentioned drying, mg-30wt%ca intermediate alloy, mg-20wt%sm
Alloy and zn preheat under the conditions of 300 DEG C.
Mg 3600g after above-mentioned drying is put in well formula resistance furnace, is passed through co2+sf6(40:1) mixed gas,
Heat under the conditions of 750 DEG C.After mg is completely melt, add above-mentioned zn 50g, mg-20wt%y intermediate alloy of preheating 1h
1000g, mg-30wt%ca intermediate alloy 167g and mg-20wt%sm intermediate alloy 250g, stirs, and stands 20 minutes, fall
Temperature is cast in 45# steel permanent mold to 720 DEG C, obtains cast alloy.
Cast alloy is carried out at 450 DEG C with the Homogenization Treatments of 24h, and carries out 70 DEG C of water quenchings.Then pass through machining
Prepare 200 × 300 × 10mm3Sheet material, at 400 DEG C, sheet material is rolled, overall reduction be 40%, draught per pass
For 8%, rolling speed is 50mm/s, and the annealing time between neighboring track time is 20 minutes.After rolling, alloy is carried out at 250 DEG C
The stress relief annealing of 4h, obtains the magnesium alloy that composition is mg-4wt%y-1wt%zn-1wt%ca-1wt%sm.
Surface degreasing, pickling are carried out to above-mentioned magnesium alloy, then described magnesium alloy is put into magnetron sputtering as substrate and set
Standby interior, it is passed through ar+ch into magnetron sputtering apparatus4(92:8) mixed gas, setting sputtering pressure be 1.0pa, bias for-
200v, sputtering current density is 0.02a/cm2, base reservoir temperature be 200 DEG C, target-substrate distance be 80mm, with hafnium carbide as sputtering target,
Mg alloy surface deposits anti-corrosion layer, obtains 5 μm of anti-corrosion layer thickness, the magnesium alloy composite wood of anti-corrosion layer c content 58at%
Material.
At 250 DEG C, 4h vacuum annealing is carried out to the composite material of magnesium alloy obtaining, removes the interface of alloy and anti-corrosion layer
Stress, and discharge the residual stress in part anti-corrosion layer.
Performance test is carried out to the composite material of magnesium alloy after above-mentioned vacuum annealing, result shows, this magnesium alloy composite wood
The room temperature tensile intensity of material and yield strength are respectively 440～450mpa and 340～350mpa, and elongation percentage is 7～8%, corrosion resistant
Erosion layer reaches more than 5b level (astm), surface Vickers hardness hv0.2=102～103 with the bond strength of alloy.This magnesium alloy is multiple
Corrosion potential in 3.5wt%nacl solution for the condensation material is -1.3v, and corrosion electric current density is 1.0～5.0 × 10-6a/cm2.
Embodiment 3
With absolute ethyl alcohol to the mg of purity 99.6%, the zn of purity 99.5%, the mg-20wt%y of purity 98.0% in the middle of
The mg-20wt%sm intermediate alloy of alloy, the mg-30wt%ca intermediate alloy of purity 98.0% and purity 98.0% carries out surface
Cleaning, and deionized water flushing, drying.
In the middle of the mg-20wt%y intermediate alloy after above-mentioned drying, mg-30wt%ca intermediate alloy, mg-20wt%sm
Alloy and zn preheat under the conditions of 300 DEG C.
Mg 4270g after above-mentioned drying is put in well formula resistance furnace, is passed through co2+sf6(40:1) mixed gas,
Heat under the conditions of 750 DEG C.After mg is completely melt, above-mentioned zn 25g, mg-20wt%y intermediate alloy 500g of addition preheating 1h,
Mg-30wt%ca intermediate alloy 84g and mg-20wt%sm intermediate alloy 125g, stirs, and stands 20 minutes, is cooled to 720
DEG C it is cast in 45# steel permanent mold, obtain cast alloy.
Cast alloy is carried out at 430 DEG C with the Homogenization Treatments of 16h, and carries out 70 DEG C of water quenchings.Then pass through machining
Prepare 200 × 300 × 10mm3Sheet material, at 380 DEG C, sheet material is rolled, overall reduction be 60%, draught per pass
For 10%, rolling speed is 150mm/s, and the annealing time between neighboring track time is 15 minutes.After rolling, alloy is entered at 200 DEG C
The stress relief annealing of row 2h, obtains the magnesium alloy that composition is mg-2wt%y-0.5wt%zn-0.5wt%ca-0.5wt%sm.
Surface degreasing, pickling are carried out to above-mentioned magnesium alloy, then described magnesium alloy is put into magnetron sputtering as substrate and set
Standby interior, it is passed through ar+ch into magnetron sputtering apparatus4(85:15) mixed gas, setting sputtering pressure be 0.2pa, bias for-
100v, sputtering current density is 0.01a/cm2, base reservoir temperature be 100 DEG C, target-substrate distance be 60mm, with hafnium carbide as sputtering target,
Mg alloy surface deposits anti-corrosion layer, obtains 3 μm of anti-corrosion layer thickness, the magnesium alloy composite wood of anti-corrosion layer c content 67at%
Material.
At 200 DEG C, 2h vacuum annealing is carried out to the composite material of magnesium alloy obtaining, removes the interface of alloy and anti-corrosion layer
Stress, and discharge the residual stress in part anti-corrosion layer.
Performance test is carried out to the composite material of magnesium alloy after above-mentioned vacuum annealing, result shows, this magnesium alloy composite wood
The room temperature tensile intensity of material and yield strength are respectively 420～430mpa and 310～330mpa, and elongation percentage is 10～12%, resistance to
Corrosion layer reaches more than 5b level (astm), surface Vickers hardness hv0.2=102～103 with the bond strength of alloy.This magnesium alloy
Corrosion potential in 3.5wt%nacl solution for the composite is -1.3v, and corrosion electric current density is 1.0～5.0 × 10-6a/
cm2.
Embodiment 4
With absolute ethyl alcohol to the mg of purity 99.6%, the zn of purity 99.5%, the y of purity 99.0%, purity 99.0%
The ca of sm and purity 99.0% carries out removing surface, and deionized water is rinsed, dried.
Zn, y and sm after above-mentioned drying is preheated under the conditions of 300 DEG C.
Mg 4920g after above-mentioned drying is put in well formula resistance furnace, is passed through co2+sf6(40:1) mixed gas,
Heat under the conditions of 750 DEG C.After mg is completely melt, add the ca 10g after above-mentioned drying and above-mentioned zn 10g, y of preheating 1h
50g, sm 10g, stirs, and stands 20 minutes, is cooled to 720 DEG C and is cast in 45# steel permanent mold, obtains as cast condition and closes
Gold.
Cast alloy is carried out at 400 DEG C with the Homogenization Treatments of 8h, and carries out 70 DEG C of water quenchings.Then pass through machining system
Standby go out 200 × 300 × 10mm3Sheet material, at 360 DEG C, sheet material is rolled, overall reduction is 90%, and draught per pass is
10%, rolling speed is 300mm/s, and the annealing time between neighboring track time is 10 minutes.After rolling, alloy is carried out at 150 DEG C
The stress relief annealing of 1h, obtains the magnesium alloy that composition is mg-1wt%y-0.2wt%zn-0.2wt%ca-0.2wt%sm.
Surface degreasing, pickling are carried out to above-mentioned magnesium alloy, then described magnesium alloy is put into magnetron sputtering as substrate and set
Standby interior, it is passed through ar+ch into magnetron sputtering apparatus4(95:5) mixed gas, setting sputtering pressure be 0.2pa, bias for-
100v, sputtering current density is 0.01a/cm2, base reservoir temperature be 100 DEG C, target-substrate distance be 60mm, with hafnium carbide as sputtering target,
Mg alloy surface deposits anti-corrosion layer, obtains 3 μm of anti-corrosion layer thickness, the magnesium alloy composite wood of anti-corrosion layer c content 32at%
Material.
At 150 DEG C, 1h vacuum annealing is carried out to the composite material of magnesium alloy obtaining, removes the interface of alloy and anti-corrosion layer
Stress, and discharge the residual stress in part anti-corrosion layer.
Performance test is carried out to the composite material of magnesium alloy after above-mentioned vacuum annealing, result shows, this magnesium alloy composite wood
The room temperature tensile intensity of material and yield strength are respectively 400～420mpa and 280～300mpa, and elongation percentage is 12～15%, resistance to
Corrosion layer reaches more than 5b level (astm), surface Vickers hardness hv0.2=102～103 with the bond strength of alloy.This magnesium alloy
Corrosion potential in 3.5wt%nacl solution for the composite is -1.3v, and corrosion electric current density is 1.0～5.0 × 10-6a/
cm2.
Embodiment 5
Dilute more than the rich yttrium mixing of 80wt% to the mg of purity 99.0%, zn, y content of purity 99.5% with absolute ethyl alcohol
Native (ymm), the mg-30wt%ca intermediate alloy of purity 98% and the mg-20wt%sm intermediate alloy of purity 98% carry out surface
Cleaning, and deionized water flushing, drying.
Zn after above-mentioned drying, mischmetal, mg-30wt%ca intermediate alloy and mg-20wt%sm intermediate alloy are existed
Preheat under the conditions of 300 DEG C.
Mg 4860g after above-mentioned drying is put in well formula resistance furnace, is passed through co2+sf6(40:1) mixed gas,
Heat under the conditions of 750 DEG C.After mg is completely melt, add the above-mentioned zn 10g of preheating 1h, rich yttrium mixed rare earth 50g, mg-
30wt%ca intermediate alloy 34g and mg-20wt%sm intermediate alloy 50g, stirs, and stands 20 minutes, is cooled to 720 DEG C and pours
Cast onto in 45# steel permanent mold, obtain cast alloy.
Cast alloy is carried out at 400 DEG C with the Homogenization Treatments of 8h, and carries out 70 DEG C of water quenchings.Then pass through machining system
Standby go out 200 × 300 × 10mm3Sheet material, at 360 DEG C, sheet material is rolled, overall reduction is 90%, and draught per pass is
10%, rolling speed is 300mm/s, and the annealing time between neighboring track time is 10 minutes.After rolling, alloy is carried out at 150 DEG C
The stress relief annealing of 1h, obtains the magnesium alloy that composition is mg-1wt%ymm-0.2wt%zn-0.2wt%ca-0.2wt%sm.
Surface degreasing, pickling are carried out to above-mentioned magnesium alloy, then described magnesium alloy is put into magnetron sputtering as substrate and set
Standby interior, it is passed through ar+ch into magnetron sputtering apparatus4(95:5) mixed gas, setting sputtering pressure be 0.2pa, bias for-
100v, sputtering current density is 0.01a/cm2, base reservoir temperature be 100 DEG C, target-substrate distance be 60mm, with hafnium carbide as sputtering target,
Mg alloy surface deposits anti-corrosion layer, obtains 3 μm of anti-corrosion layer thickness, the magnesium alloy composite wood of anti-corrosion layer c content 32at%
Material.
At 150 DEG C, 1h vacuum annealing is carried out to the composite material of magnesium alloy obtaining, removes the interface of alloy and anti-corrosion layer
Stress, and discharge the residual stress in part anti-corrosion layer.
Performance test is carried out to the composite material of magnesium alloy after above-mentioned vacuum annealing, result shows, this magnesium alloy composite wood
The room temperature tensile intensity of material and yield strength are respectively 400～420mpa and 280～300mpa, and elongation percentage is 12～15%, resistance to
Corrosion layer reaches more than 5b level (astm), surface Vickers hardness hv0.2=102～103 with the bond strength of alloy.This magnesium alloy
Corrosion potential in 3.5wt%nacl solution for the composite is -1.3v, and corrosion electric current density is 1.0～5.0 × 10-6a/
cm2.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of composite material of magnesium alloy, comprising:
Magnesium alloy；
Described magnesium alloy includes following components:
It is less than or equal to the zn of 2wt% more than 0；
It is less than or equal to the ca of 2wt% more than 0；
It is less than or equal to the sm of 2wt% more than 0；
It is less than or equal to the y of 6wt% more than 0；
The mg of surplus；
It is compounded in the anti-corrosion layer of described Mg alloy surface；
Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.
2. composite material of magnesium alloy according to claim 1 is it is characterised in that described magnesium alloy includes 0.2～1wt%'s
zn.
3. composite material of magnesium alloy according to claim 1 is it is characterised in that described magnesium alloy includes 0.2～1wt%'s
ca.
4. composite material of magnesium alloy according to claim 1 is it is characterised in that described magnesium alloy includes 0.2～1wt%'s
sm.
5. composite material of magnesium alloy according to claim 1 is it is characterised in that described magnesium alloy includes the y of 1～4wt%.
6. composite material of magnesium alloy according to claim 1 it is characterised in that in described anti-corrosion layer carbon content be 25～
70at%.
7. a kind of preparation method of composite material of magnesium alloy, comprising:
Anti-corrosion layer is deposited in Mg alloy surface using magnetron sputtering method, obtains composite material of magnesium alloy；
Described magnesium alloy includes following components:
It is less than or equal to the zn of 2wt% more than 0；
It is less than or equal to the ca of 2wt% more than 0；
It is less than or equal to the sm of 2wt% more than 0；
It is less than or equal to the y of 6wt% more than 0；
The mg of surplus；
Described anti-corrosion layer contains hafnium carbide, ramet or zirconium carbide.
8. preparation method according to claim 7 is it is characterised in that use during described deposition anti-corrosion layer splashes
Body of emanating is argon gas, and reacting gas is methane.
9. preparation method according to claim 8 is it is characterised in that described methane is 1～20 with the volume ratio of argon gas:
80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410409421.XA CN104131204B (en) | 2014-08-19 | 2014-08-19 | Magnesium alloy, magnesium alloy composite material and preparation method of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410409421.XA CN104131204B (en) | 2014-08-19 | 2014-08-19 | Magnesium alloy, magnesium alloy composite material and preparation method of composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104131204A CN104131204A (en) | 2014-11-05 |
| CN104131204B true CN104131204B (en) | 2017-01-25 |
Family
ID=51804052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410409421.XA Active CN104131204B (en) | 2014-08-19 | 2014-08-19 | Magnesium alloy, magnesium alloy composite material and preparation method of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104131204B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6607463B2 (en) | 2015-04-08 | 2019-11-20 | バオシャン アイアン アンド スティール カンパニー リミテッド | Strain-induced aging strengthening in dilute magnesium alloy sheets |
| JP6607464B2 (en) * | 2015-04-08 | 2019-11-20 | バオシャン アイアン アンド スティール カンパニー リミテッド | Formable magnesium-type wrought alloy |
| CN106191587A (en) * | 2016-08-16 | 2016-12-07 | 中国科学院长春应用化学研究所 | Magnesium-rare earth and the preparation method of magnesium-rare earth suspended ceiling pinch plate |
| CN108374102A (en) * | 2017-03-17 | 2018-08-07 | 黄河科技学院 | Component and preparation method thereof for making closed-cell foam composite material of magnesium alloy |
| CN108728792A (en) * | 2017-06-14 | 2018-11-02 | 南京佑天金属科技有限公司 | The preparation method of hafnium carbide film and the mold for including the hafnium carbide film |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0941065A (en) * | 1994-03-23 | 1997-02-10 | Takeshi Masumoto | High strength magnesium alloy and its production |
| JP2006002184A (en) * | 2004-06-15 | 2006-01-05 | Toudai Tlo Ltd | High-toughness magnesium-base alloy, drive system part using the same, and method for manufacturing high-toughness magnesium-base alloy material |
| JP4139841B2 (en) * | 2004-09-30 | 2008-08-27 | 能人 河村 | Casting and production method of magnesium alloy |
| CN101468538B (en) * | 2007-12-24 | 2013-12-04 | 比亚迪股份有限公司 | Coating material and preparation method thereof |
| JP5467294B2 (en) * | 2008-06-05 | 2014-04-09 | 独立行政法人産業技術総合研究所 | Easy-formable magnesium alloy sheet and method for producing the same |
| CN102534612A (en) * | 2010-12-30 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Magnesium alloy surface anticorrosive treatment method and magnesium product thereof |
| ES2423354T3 (en) * | 2011-02-01 | 2013-09-19 | Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH | Magnesium alloy containing rare earth metals |
-
2014
- 2014-08-19 CN CN201410409421.XA patent/CN104131204B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104131204A (en) | 2014-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104131204B (en) | Magnesium alloy, magnesium alloy composite material and preparation method of composite material | |
| CN103834893B (en) | A kind of electric spark deposition strengthens the method for metal hydroturbine runner blade surface in conjunction with plasma cladding | |
| CN104561878A (en) | High-entropy alloy powder for spray coating and preparation method thereof, as well as composite material and preparation method thereof | |
| CN103590008B (en) | One is coated with interlayer in TiAl alloy and MCrAlY and prepares Al 2o 3the method of diffusion barrier | |
| CN105734375A (en) | Sb-containing magnesium alloy sacrificial anode material | |
| CN102011082A (en) | Hot immersion plating process method for Al-Zn-Si-Mg alloy plating layer | |
| CN108559895B (en) | Corrosion-resistant grounding alloy and preparation method thereof | |
| CN104775039A (en) | Purification method of copper/copper alloy liquid | |
| CN101492799B (en) | Wear-resistant cast iron coating and production method | |
| CN102691040B (en) | Treatment method for alloying surface of superhigh-strength aluminum alloy | |
| WO2012113241A1 (en) | Multi-combinational degenerated low-zinc hot-dipped aluminum-galvanized alloy plating material containing mg, and preparation method therefor | |
| CN101942590A (en) | Magnesium alloy for automobile parts and preparation method thereof | |
| CN108330307A (en) | A kind of electric arc spraying zinc-copper-titanium alloy silk material and its preparation process | |
| CN106514039B (en) | A kind of copper and tin titanium solder and preparation method thereof | |
| CN100575535C (en) | The metallic surface forms TiB 2The method of ceramic composite | |
| JP6500848B2 (en) | Steel for bolts | |
| CN108251810A (en) | A kind of preparation method of corrosion-resistant Sintered NdFeB magnet | |
| CN109402422B (en) | Aluminum-magnesium-zirconium alloy wire and manufacturing method thereof | |
| CN102808145A (en) | Preparation method for a zinc alloy mold with a high temperature-resistant coating | |
| CN102650026B (en) | Be and multi-combination degenerative low-zinc hot-dipped aluminum alloy coating material and preparation method thereof | |
| CN105779959A (en) | Aluminum alloy surface modification technology | |
| Shi et al. | Effect of Zn content on corrosion behavior of Mg-Y-Zn alloys | |
| CN105838951B (en) | A kind of magnesium alloy of sacrificial anode containing La | |
| CN104831225B (en) | A kind of method of coating antiseptic containing rare earth alloy for grounded screen protection | |
| CN115961182A (en) | Corrosion-resistant and abrasion-resistant coating and cold spraying preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |