CN107164671A - A kind of high strength graphite alkene rare earth aluminium alloy - Google Patents
A kind of high strength graphite alkene rare earth aluminium alloy Download PDFInfo
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- CN107164671A CN107164671A CN201710267007.3A CN201710267007A CN107164671A CN 107164671 A CN107164671 A CN 107164671A CN 201710267007 A CN201710267007 A CN 201710267007A CN 107164671 A CN107164671 A CN 107164671A
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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Abstract
The invention discloses a kind of high strength graphite alkene rare earth aluminium alloy, including alloy matrix aluminum and graphene, the component of alloy matrix aluminum includes by weight percent：Cu：1.2 1.8%, Si：0.18 0.25%, Cr：0.08 0.2%, Mg：0.6 0.8%, Mn：0.1 0.2%, Fe：0.3 0.4%, Zn：0.3 0.5%, Ti：0.02 0.06%, V：0.1 0.2%, Ni：0.1 0.2%, Mo：0.04 0.07%, Zr：0.05 0.12%, Nd：0.04 0.08%, La：0.04 0.06%, Ce：0.03 0.05%, remaining is Al.A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, with mechanical properties such as good intensity, toughness.
Description
Technical field
The present invention relates to alloying technology field, more particularly to a kind of high strength graphite alkene rare earth aluminium alloy.
Background technology
Reserves of the aluminium in the earth's crust extremely enrich, and account for 7.45% or so of earth's crust gross mass, content comes oxygen element, silicon
After element, the 3rd is occupied.Aluminium alloy due to good density is small, intensity is big and good processability, Aeronautics and Astronautics,
It is used widely in the fields such as building.As structural material, the important directions that intensity of aluminum alloy is research how are further improved
One of, common graphite, carborundum, boron carbide etc. of being added in aluminium alloy prepares the effect of aluminum matrix composite raising intensity simultaneously
Not substantially, while influenceing the plasticity of aluminium alloy, and the raising required with people aluminium alloy capability, the intensity of aluminium alloy also has
Wait to improve.
The content of the invention
The technical problem existed based on background technology, the present invention proposes a kind of high strength graphite alkene rare earth aluminium alloy, its
Formula is reasonable, by rationally adding graphene and rare earth element, makes it have the mechanical properties such as good intensity, toughness, simultaneously
With corrosion resistance with wearability good, the advantages of service life is long.
A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, including alloy matrix aluminum and graphene, aluminium alloy
The component of matrix includes by weight percent：Cu：1.2-1.8%, Si：0.18-0.25%, Cr：0.08-0.2%, Mg：0.6-
0.8%th, Mn：0.1-0.2%, Fe：0.3-0.4%, Zn：0.3-0.5%, Ti：0.02-0.06%, V：0.1-0.2%, Ni：
0.1-0.2%, Mo：0.04-0.07%, Zr：0.05-0.12%, Nd：0.04-0.08%, La：0.04-0.06%, Ce：
0.03-0.05%, surplus is Al.
In specific embodiment, Cu mass percent can also for 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, Si
Mass percent can also for 0.2%, 0.21%, 0.22%, 0.23%, 0.24%, Cr mass percent can also be
0.1%th, 0.12%, 0.14%, 0.16%, 0.18%, Mg mass percent can also for 0.62%, 0.65%, 0.68%,
0.7%th, 0.74%, 0.78%, Mn mass percent can also be 0.12%, 0.14%, 0.16%, 0.18%, 0.19%,
Fe mass percent can also for 0.32%, 0.34%, 0.36%, 0.38%, Zn mass percent can also be
0.32%th, 0.35%, 0.37%, 0.4%, 0.45%, 0.48%, Ti mass percent can also for 0.03%, 0.04%,
0.045%th, 0.05%, 0.055%, V mass percent can also for 0.12%, 0.14%, 0.16%, 0.18%,
0.19%, Ni mass percent can also for 0.12%, 0.14%, 0.16%, 0.18%, 0.19%, Mo quality percentage
Number can also be 0.045%, 0.05%, 0.055%, 0.06%, 0.065%, Zr mass percent can also be 0.06%,
0.08%th, 0.1%, 0.11%, Nd mass percent can also for 0.045%, 0.05%, 0.06%, 0.07%,
0.075%, La mass percent can also for 0.045%, 0.05%, 0.055%, Ce mass percent can also be
0.035%th, 0.04%, 0.045%, surplus is Al.
Preferably, content of the graphene in high strength graphite alkene rare earth aluminium alloy is 0.5-0.8%.
Preferably, carbon content >=99.5% is fixed in graphene, the granularity of graphene is 240-270 mesh.
Preferably, in the component of alloy matrix aluminum, Nd, La, Ce mass percent meet following relational expression：0.13%≤
Nd+La+Ce≤0.17%.
Preferably, in the component of alloy matrix aluminum, Cu, Cr, Mn, V mass percent meet following relational expression：1.1%
≤ 0.5 × Cu+Cr+Mn+V≤1.3%.
Preferably, in the component of alloy matrix aluminum, Mg, Ti, Zr mass percent meet following relational expression：0.74%≤
Mg+Ti+Zr≤0.91%.
Preferably, the component of alloy matrix aluminum includes by weight percent：Cu：1.4-1.6%, Si：0.2-0.22%,
Cr：0.1-0.16%, Mg：0.65-0.75%, Mn：0.12-0.18%, Fe：0.32-0.37%, Zn：0.35-0.45%, Ti：
0.03-0.05%, V：0.12-0.18%, Ni：0.12-0.18%, Mo：0.045-0.065%, Zr：0.07-0.1%, Nd：
0.05-0.07%, La：0.045-0.056%, Ce：0.035-0.045%, remaining is Al.
Preferably, the component of alloy matrix aluminum includes by weight percent：Cu：1.5%th, Si：0.21%th, Cr：0.13%th,
Mg：0.72%th, Mn：0.15%th, Fe：0.35%th, Zn：0.4%th, Ti：0.042%th, V：0.15%th, Ni：0.15%th, Mo：
0.052%th, Zr：0.085%th, Nd：0.062%th, La：0.05%th, Ce：0.04%, remaining is Al.
The present invention is made using common process.
By adding Mg, Ti and Zr in the present invention, and its content in aluminium alloy is controlled, formed in aluminium alloy
Mg5Al8Phase, Al3Ti phases and Al3Zr phases, Dispersed precipitate forms heterogeneous necleus in aluminium alloy during crystallization, refined aluminium alloy
Institutional framework, improves the tensile strength and yield strength of aluminium alloy；Cu, Cr, Mn and V coordinate, and make Cu, Cr, Mn, V matter
Percentage is measured to meet：1.1%≤0.5 × Cu+Cr+Mn+V≤1.3%, improve that Cu causes to aluminium alloy corrosion resistance is unfavorable
Influence, generation hardening constituent CuAl2And MnAl6, each hardening constituent homogeneous precipitation plays solution strengthening and ageing strengthening effect, improves aluminium
The corrosion resistance and welding performance of alloy, at the same can dissolved impurity iron, reduce Fe to the adverse effect of aluminium alloy, then with Nd, La,
Ce coordinates, and enables aluminum alloy to constitutional supercooling during founding, prevents aluminium alloy from recrystallizing, and improves aluminium alloy recrystallization temperature, and can be significantly
Recrystal grain is refined, secondary intergranular is reduced away from the consistency of raising aluminium alloy coordinates, the ratio surface of graphene with graphene
Product is big, is evenly distributed in alloy matrix aluminum, and good combination interface is formed with matrix, hinders in combination interface loading process
Dislocation is moved and Crack Extension, is reduced the gas in aluminium alloy and is mingled with, further crystal grain thinning, improves the densification of aluminium alloy
Degree, and promote constituent phases to tend to nodularization, while reducing the surface tension of aluminum alloy melt, increase the mobility of aluminum alloy melt, improve
The hot-working character of aluminium alloy, Cu, Cr, Mn, V, Nd, La, Ce and graphene coordinate, and further improve the performance of aluminium alloy, carry
The toughness and reduction aluminum alloy stress corrosion cracking sensitivity of high aluminium alloy, at the same significantly improve the intensity of aluminium alloy, hardness,
Corrosion resistance and anti-wear performance, extend the service life of aluminium alloy；Si, Mg and Ni coordinate, and reduction aluminium alloy interstitial atom is handed over
Dislocation motion drag in the energy and crystal lattice of interaction, promotes stress relaxation, while generating hardening constituent Mg2Si, is improved
Toughness, crack resistance, casting character and the corrosion resistance of aluminium alloy, reduction aluminium alloy brittle fracture tendency.Proposed by the present invention one
High strength graphite alkene rare earth aluminium alloy is planted, it is reasonable that it is formulated, by rationally adding graphene and rare earth element, made it have good
The mechanical property such as intensity, toughness, while have corrosion resistance good with wearability, the advantages of service life is long.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, including alloy matrix aluminum and graphene, aluminium alloy
The component of matrix includes by weight percent：Cu：1.8%th, Si：0.25%th, Cr：0.08%th, Mg：0.6%th, Mn：0.1%th, Fe：
0.4%th, Zn：0.3%th, Ti：0.02%th, V：0.2%th, Ni：0.2%th, Mo：0.04%th, Zr：0.12%th, Nd：0.04%th, La：
0.06%th, Ce：0.03%, surplus is Al.
Embodiment 2
A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, including alloy matrix aluminum and graphene, aluminium alloy
The component of matrix includes by weight percent：Cu：1.2%th, Si：0.18%th, Cr：0.2%th, Mg：0.8%th, Mn：0.2%th, Fe：
0.3%th, Zn：0.5%th, Ti：0.06%th, V：0.1%th, Ni：0.1%th, Mo：0.07%th, Zr：0.05%th, Nd：0.08%th, La：
0.04%th, Ce：0.05%, surplus is Al.
Wherein, content of the graphene in high strength graphite alkene rare earth aluminium alloy is 0.5%；
It is 99.5% that carbon content is fixed in graphene, and the granularity of graphene is 240 mesh.
Embodiment 3
A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, including alloy matrix aluminum and graphene, aluminium alloy
The component of matrix includes by weight percent：Cu：1.5%th, Si：0.21%th, Cr：0.14%th, Mg：0.72%th, Mn：0.15%th,
Fe：0.35%th, Zn：0.42%th, Ti：0.04%th, V：0.14%th, Ni：0.15%th, Mo：0.055%th, Zr：0.08%th, Nd：
0.06%th, La：0.05%th, Ce：0.04%, surplus is Al.
Wherein, content of the graphene in high strength graphite alkene rare earth aluminium alloy is 0.65%；
It is 99.9% that carbon content is fixed in graphene, and the granularity of graphene is 250 mesh.
Embodiment 4
A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, including alloy matrix aluminum and graphene, aluminium alloy
The component of matrix includes by weight percent：Cu：1.65%th, Si：0.22%th, Cr：0.12%th, Mg：0.75、Mn：0.12%th,
Fe：0.36%th, Zn：0.33%th, Ti：0.03%th, V：0.12%th, Ni：0.18%th, Mo：0.05%th, Zr：0.1%th, Nd：
0.05%th, La：0.055%th, Ce：0.035%, surplus is Al.
Wherein, content of the graphene in high strength graphite alkene rare earth aluminium alloy is 0.8%；
It is 99.8% that carbon content is fixed in graphene, and the granularity of graphene is 270 mesh.
Embodiment 5
A kind of high strength graphite alkene rare earth aluminium alloy proposed by the present invention, including alloy matrix aluminum and graphene, aluminium alloy
The component of matrix includes by weight percent：Cu：1.45%th, Si：0.2%th, Cr：0.15%th, Mg：0.65%th, Mn：0.18%th,
Fe：0.34%th, Zn：0.45%th, Ti：0.05%th, V：0.18%th, Ni：0.12%th, Mo：0.06%th, Zr：0.07%th, Nd：
0.07%th, La：0.045%th, Ce：0.045%, surplus is Al.
Wherein, content of the graphene in high strength graphite alkene rare earth aluminium alloy is 0.7%；
It is 99.85% that carbon content is fixed in graphene, and the granularity of graphene is 260 mesh.
Performance test is carried out at normal temperatures and pressures to a kind of high strength graphite alkene rare earth aluminium alloy in the embodiment of the present invention 3,
Result is as shown in the table compared with prior art：
| Yield strength/MPa | Tensile strength/MPa | Hardness/HRC | |
| Prior art | 550 | 590 | 160 |
| Embodiment 3 | 650.5 | 695.5 | 180 |
By above table as can be seen that high strength graphite alkene rare earth aluminium alloy of the present invention compared with prior art,
Lifting is obtained in terms of yield strength, tensile strength and hardness, more excellent performance is shown, made more suitable for production
With.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. a kind of high strength graphite alkene rare earth aluminium alloy, it is characterised in that including alloy matrix aluminum and graphene, alloy matrix aluminum
Component include by weight percent：Cu：1.2-1.8%, Si：0.18-0.25%, Cr：0.08-0.2%, Mg：0.6-
0.8%th, Mn：0.1-0.2%, Fe：0.3-0.4%, Zn：0.3-0.5%, Ti：0.02-0.06%, V：0.1-0.2%, Ni：
0.1-0.2%, Mo：0.04-0.07%, Zr：0.05-0.12%, Nd：0.04-0.08%, La：0.04-0.06%, Ce：
0.03-0.05%, remaining is Al.
2. high strength graphite alkene rare earth aluminium alloy according to claim 1, it is characterised in that graphene is in high strength graphite alkene
Content in rare earth aluminium alloy is 0.5-0.8%.
3. high strength graphite alkene rare earth aluminium alloy according to claim 1, it is characterised in that fixed in graphene carbon content >=
99.5%, the granularity of graphene is 240-270 mesh.
4. high strength graphite alkene rare earth aluminium alloy according to claim 1, it is characterised in that in the component of alloy matrix aluminum,
Nd, La, Ce mass percent meet following relational expression：0.13%≤Nd+La+Ce≤0.17%.
5. high strength graphite alkene rare earth aluminium alloy according to claim 1, it is characterised in that in the component of alloy matrix aluminum,
Cu, Cr, Mn, V mass percent meet following relational expression：1.1%≤0.5 × Cu+Cr+Mn+V≤1.3%.
6. high strength graphite alkene rare earth aluminium alloy according to claim 1, it is characterised in that in the component of alloy matrix aluminum,
Mg, Ti, Zr mass percent meet following relational expression：0.74%≤Mg+Ti+Zr≤0.91%.
7. high strength graphite alkene rare earth aluminium alloy according to claim 1, it is characterised in that the component of alloy matrix aluminum presses matter
Amount percentage includes：Cu：1.4-1.6%, Si：0.2-0.22%, Cr：0.1-0.16%, Mg：0.65-0.75%, Mn：0.12-
0.18%th, Fe：0.32-0.37%, Zn：0.35-0.45%, Ti：0.03-0.05%, V：0.12-0.18%, Ni：0.12-
0.18%th, Mo：0.045-0.065%, Zr：0.07-0.1%, Nd：0.05-0.07%, La：0.045-0.056%, Ce：
0.035-0.045%, remaining is Al.
8. high strength graphite alkene rare earth aluminium alloy according to claim 7, it is characterised in that the component of alloy matrix aluminum presses matter
Amount percentage includes：Cu：1.5%th, Si：0.21%th, Cr：0.13%th, Mg：0.72%th, Mn：0.15%th, Fe：0.35%th, Zn：
0.4%th, Ti：0.042%th, V：0.15%th, Ni：0.15%th, Mo：0.052%th, Zr：0.085%th, Nd：0.062%th, La：
0.05%th, Ce：0.04%, remaining is Al.
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Cited By (4)
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| CN107937744A (en) * | 2017-11-23 | 2018-04-20 | 湖州亨达铝业有限公司 | A kind of preparation method of the door and window aluminium alloy extrusions with high heat-proof quality |
| CN108929976A (en) * | 2018-07-10 | 2018-12-04 | 中南大学 | Graphene enhances low cerium Al-Si-Mg alloy and its casting method |
| CN109036617A (en) * | 2018-07-27 | 2018-12-18 | 湖州亨达铝业有限公司 | A kind of aluminium alloy conductor |
| CN116445780A (en) * | 2023-05-26 | 2023-07-18 | 广东鸿邦金属铝业有限公司 | Environment-friendly high-strength aluminum alloy material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107937744A (en) * | 2017-11-23 | 2018-04-20 | 湖州亨达铝业有限公司 | A kind of preparation method of the door and window aluminium alloy extrusions with high heat-proof quality |
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| CN116445780A (en) * | 2023-05-26 | 2023-07-18 | 广东鸿邦金属铝业有限公司 | Environment-friendly high-strength aluminum alloy material and preparation method thereof |
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