CN114083173A - Aluminum alloy wire for additive manufacturing and application thereof - Google Patents
Aluminum alloy wire for additive manufacturing and application thereof Download PDFInfo
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- CN114083173A CN114083173A CN202111363293.6A CN202111363293A CN114083173A CN 114083173 A CN114083173 A CN 114083173A CN 202111363293 A CN202111363293 A CN 202111363293A CN 114083173 A CN114083173 A CN 114083173A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-up welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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Abstract
The invention discloses an aluminum alloy wire for additive manufacturing and application thereof, wherein the aluminum alloy wire comprises the following components in percentage by mass: 4.0-7.0% of Cu, 1.0-2.5% of Mg, 2.6-6% of Cu and Mg by mass, 0.4-0.8% of Mn, 0.1-0.8% of refining elements, and the balance of Al and inevitable impurity elements. The aluminum alloy wire provided by the invention has high Cu content, the proportion of Cu and Mg is limited in a proper range, and under the coordination of Mn and refining elements, the extreme metallurgical conditions and short-time peak-cycle heat flow conditions in the additive manufacturing and forming process are fully utilized, so that the additive manufacturing structural part has stable tensile strength of about 300MPa, and the aluminum alloy wire can be applied to the fields of aerospace and the like.
Description
Technical Field
The invention relates to the technical field of additive manufacturing materials, in particular to an aluminum alloy wire for metal additive manufacturing and application thereof.
Background
The additive manufacturing technology can realize free design and green manufacturing, shortens the processing period and has wide application prospect. The additive manufacturing using metal wire as raw material is a new manufacturing and forming process developed in recent years, and is particularly suitable for the rapid and efficient manufacturing of large-size structural members. However, the mechanical properties of most aluminum alloy wire materials formed by additive manufacturing at present cannot reach the properties of alloys with the same components in the traditional processing state, which becomes a key for restricting the maturity and application of the technology for manufacturing aluminum alloy wires by additive manufacturing.
At present, the aluminum alloy wire raw materials capable of realizing stable forming are all traditional welding wires and are evolved from the components of traditional wrought aluminum alloys or cast aluminum alloys. These include most 1-series aluminum alloy wire rods, 2-series aluminum alloy wire rods represented by 2319 alloy, and 5-series aluminum alloy wire rods such as 5087 and 5356. These materials generally have better castability and therefore better formability in additive manufacturing processes. However, the tensile strength of the formed alloy is generally difficult to exceed 280MPa, which cannot meet the requirements of industry, particularly the aerospace field, on a plurality of high-strength parts. In addition, conventional high-strength aluminum alloy wires widely used in industry, such as 2-series and 7-series aluminum alloy wires represented by 2024 and 7075, have a large amount of thermal cracks formed inside a member due to the influence of shrinkage stress during the additive manufacturing process, resulting in very poor mechanical properties.
This situation is not favorable for the development of the material increase manufacturing industry in China. Therefore, aiming at the process characteristics of additive manufacturing, a novel aluminum alloy wire for additive manufacturing is developed, the bottleneck problem of restricting the internal quality and the mechanical property of an additive manufacturing component is solved, and the basis for determining whether the advantages of the additive manufacturing technology can be fully exerted and moving to engineering application is provided.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an aluminum alloy wire for additive manufacturing, which can fully utilize extreme metallurgical conditions of additive manufacturing and short-time peak-cycle heat flow conditions in the additive manufacturing process to realize in-situ precipitation of a fine metastable phase, thereby preparing an aluminum alloy structural member with higher strength, better plasticity and low hot cracking tendency.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the invention provides an aluminum alloy wire for additive manufacturing, which comprises the following components in percentage by mass:
4.0-7.0% of Cu, 1.0-2.5% of Mg, wherein the mass ratio of Cu to Mg is 2.6-6, 0.4-0.8% of Mn, 0.1-0.8% of refining elements, and the balance of Al and inevitable impurity elements.
As a preferred embodiment, the refining element is selected from one or more of Ti, Zr, Sc and V;
based on the total mass of the aluminum alloy wire, the content of Ti is 0.1-0.4%;
preferably, the content of Zr is 0.1-0.4%;
preferably, the content of Sc is 0.1% -0.4%;
preferably, the content of V is 0.1% to 0.2%. V can form refractory compounds and refine grains, and tests prove that if the V is added with Ti and Zr in a compounding way, a recrystallization structure is refined, and the effect of improving the recrystallization temperature is more obvious. Therefore, the additive may be added alone or in combination.
In the technical scheme of the invention, the refining elements are selected from one or more of Ti, Zr, Sc and V, and the content of each refining element in the aluminum alloy wire has an upper limit based on the maximum solid solubility of each element in Al. If a plurality of refining elements are added, the total amount of the refining elements is not more than 0.8 percent of the aluminum alloy wire.
As a preferred embodiment, the inevitable impurity element is one or more of Fe, Si and Zn; the content of a single impurity element in the inevitable impurity elements is not more than 0.15% based on the total mass of the aluminum alloy wire.
As a preferred embodiment, the mass percentage of Cu is 6% to 7% based on the total mass of the aluminum alloy wire.
In a preferred embodiment, the mass ratio of Cu to Mg in the aluminum alloy wire is 3 to 5.
As a preferred embodiment, the content of Ti is 0.15 to 0.3% based on the total mass of the aluminum alloy wire.
As a preferred embodiment, the Zr content is 0.15% to 0.3% based on the total mass of the aluminum alloy wire.
As a preferred embodiment, the content of Fe in the inevitable impurity elements is 0.1% or less based on the total mass of the aluminum alloy wire;
preferably, the content of Si is less than or equal to 0.08 percent;
preferably, the Zn content is less than or equal to 0.05 percent.
In a second aspect, the present invention provides the use of the above-described aluminum alloy wire in the field of additive manufacturing, and further in additive manufacturing using arc, plasma beam, laser, electron beam or induction melting as a heat source.
The technical scheme has the following advantages or beneficial effects:
in the prior art, the traditional aluminum alloy wire material widely used in additive manufacturing has limited components, so that a metastable strengthening phase is difficult to form in situ after forming. Although in the document Zhou Y, Lin X, Kang N, et Al, mechanical properties and Characterization floor of the at-100% wire + arc additived treated 2219aluminum alloy [ J ]. Materials Characterisation, 2020,171:110735, Linxin et Al also found theta 'metastable phase precipitation at the bottom of an Al-Cu 6.3% arc fuse additive manufacturing aluminum alloy test piece with a higher Cu content, the theta' phase formation enthalpy is higher, and it is difficult to form high density precipitation, thus there is a limit to the improvement of mechanical properties.
The aluminum alloy wire provided by the invention contains higher Cu content and a proper Cu/Mg ratio range, can fully utilize extreme metallurgical conditions of additive manufacturing and heat flow conditions of short-time peak circulation, and in-situ forms a large number of needle-shaped S 'metastable phases which are finely distributed in the deposited alloy formed by additive manufacturing, wherein the longitudinal dimension of the needle-shaped S' metastable phases is generally less than 200nm, and the metastable phases can effectively increase the strength of the alloy manufactured by additive manufacturing. Meanwhile, when the aluminum alloy wire with high Cu content is manufactured in an additive mode, the cooling speed of a small molten pool is close to the quenching cooling speed, element diffusion is effectively limited, a supersaturated solid solution is formed, a driving force is provided for metastable phase nucleation, and a solid solution treatment effect is achieved. In addition, the metastable S' phase has low formation enthalpy and binding energy, is easy to form and has higher stability, and can complete the precipitation process within 60S or shorter. Therefore, under the special heat flow condition of additive manufacturing, in-situ precipitation is easy to realize in the aluminum alloy wire. The proper amount of Mn element can reduce the crack tendency of the welding seam and increase the corrosion resistance. Meanwhile, T' metastable phase is formed in the additive manufacturing process, and the strength of the alloy is further improved.
In addition, microalloying elements such as Zr, Ti and Sc precipitate a large amount of Al in wire rods and additive manufacturing alloys3Zr、Al3(Ti, Zr) or Al3Zr and the like. The particles have very fine size, high dispersion degree and better compatibility with an Al matrix, can obviously refine the grain structure of the wire and the additive manufacturing alloy, and reduce the hot cracking tendency. In addition, the second phase particles are not easy to grow up at high temperature, the pinning effect on dislocation and grain boundary movement is strong, and the strength and the plasticity of the material can be further improved.
The invention has the beneficial effects that: the aluminum alloy wire material directly manufactured by material increase by adopting the aluminum alloy wire material as a raw material has fine crystal grains, a metastable strengthening phase is precipitated in situ in the crystal grains, and the heat cracking tendency of the alloy is very low. In addition, the tensile strength of the directly-stacked alloy can stably reach about 300MPa, and the alloy has good plasticity, well solves the problems of thermal cracks and poor mechanical properties of the aluminum alloy wire material in the additive manufacturing process, and can be applied to the additive manufacturing field using electric arcs, plasma beams, lasers, electron beams, induction melting and the like as heat sources.
Drawings
FIG. 1 is a cross-sectional metallographic photograph of an additive manufactured structure made from the aluminum alloy wire of example 1.
Detailed Description
The following examples are only a part of the present invention, and not all of them. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, belong to the protection scope of the invention.
The invention provides an aluminum alloy wire for additive manufacturing, which comprises the following components in percentage by mass: 4.0-7.0% of Cu, 1.0-2.5% of Mg, 2.6-6% of Cu and Mg by mass, 0.4-0.8% of Mn, 0.1-0.8% of refining elements and the balance of Al and inevitable impurity elements.
The aluminum alloy wire for additive manufacturing provided by the invention is Al-Cu-Mg alloy, and the main elements are Al, Cu and Mg.
As one of the essential elements, the content of Cu in the aluminum alloy wire of the present invention is 4.0 to 7.0% by mass, and in some specific examples, the content of Cu may be 4.0%, 4.5%, 5.0%, 5.5%, 6.0%, 6.5%, 7.0% or any content therebetween. As a preferable example, the content of Cu is 6.0% to 7.0%. If the Cu content is too high, a large amount of coarse brittle eutectic structures may be formed in the additive manufacturing alloy, reducing the strength and plasticity of the alloy. If the Cu content is too low, metastable phases cannot be precipitated by intrinsic heat treatment of additive manufacturing to achieve the purpose of strengthening.
As another essential element, the aluminum alloy wire according to the present invention has a Mg content of 1.0 to 2.5% by mass, and in some embodiments, the Mg content may be 1.0%, 1.3%, 1.5%, 1.7%, 2.3%, 2.5% or any content therebetween.
The mass ratio of Cu to Mg in the aluminum alloy wire material provided by the present invention is 2 to 6, and in some specific examples, the mass ratio of Cu to Mg may be 2.6, 3, 3.5, 4, 4.5, 5, 5.5, 6 or any value therebetween, and as a preferable example, the mass ratio of Cu to Mg is 3 to 5. The Cu/Mg with moderate proportion can effectively realize the in-situ precipitation of metastable phases, and a large amount of S' phases cannot be formed when the proportion is too high or too low.
The aluminum alloy wire provided by the invention also comprises Mn element, and the content of the Mn element is 0.4-0.8% by mass percent, and in some specific embodiments, the content of Mn can be 0.4%, 0.5%, 0.6%, 0.7%, 0.8% or any content therebetween.
The aluminum alloy wire provided by the invention is also added with 0.1-0.8% of refining elements by mass ratio to refine alloy grains, improve the alloy structure of additive manufacturing, improve the tensile strength and yield strength of the alloy and improve the plasticity and fatigue performance of the alloy. In certain specific embodiments, the content of the refining element is 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, or any content therebetween, in mass%. The refining element in the aluminum alloy wire provided by the invention is at least one selected from Ti, Zr, Sc and V.
In some specific examples, when the refining element includes Ti, the content of Ti is 0.1% to 0.4%, which may be 0.1%, 0.2%, 0.3%, 0.4% or any content therebetween, and is preferably 0.15% to 0.3%.
In some specific examples, when the refining element includes Zr, the content of Zr is 0.1% to 0.4%, which may be 0.1%, 0.2%, 0.3%, 0.4% or any content therebetween, and is preferably 0.15% to 0.3%.
In some specific examples, when the refining element includes Sc, the Sc content is 0.1% to 0.4%, which may be 0.1%, 0.2%, 0.3%, 0.4%, or any content therebetween.
In some specific examples, when the refining element includes V, the content of V is 0.1% to 0.2%, which may be 0.1%, 0.15%, 0.2% or any content therebetween.
The aluminum alloy wire provided by the present invention also contains inevitable impurity elements, and it is known in the art that the process of producing aluminum almost inevitably results in the presence of impurities such as other metals. Even if the level of impurities is preferably very low, or even absent, the presence of impurities may be unavoidable in some cases.
In certain specific embodiments, when the unavoidable impurity element includes Fe, the content thereof is 0.15% by mass or less, preferably 0.1% by mass or less.
In some specific examples, when the inevitable impurity element includes Si, the content thereof is 0.15% by mass or less, preferably 0.08% by mass or less.
In certain specific embodiments, when the unavoidable impurity element includes Zn, the content thereof is 0.15% by mass or less, preferably 0.05% by mass or less.
In the following examples, the aluminum alloy wire is prepared by means of conventional techniques in the art, and the specific operation process includes smelting, refining, casting, drawing, scraping, cleaning and the like.
Example 1:
in the aluminum alloy wire for additive manufacturing in this example, the chemical components, by mass, were 6.46% Cu, 2.05% Mg, 3.2% Cu and Mg, 0.46% Mn, 0.22% Ti, 0.25% Zr, 0.14% V, 0.10% Fe, 0.06% Si, 0.02% Zn, and the balance Al.
The aluminum alloy wire provided by the embodiment is a solid wire with the diameter of 1.2mm, the surface of the solid wire is mechanically scraped and cleaned and then used as a raw material, and a single-channel multilayer aluminum alloy thin-wall structure with corresponding components is manufactured by adopting a variable polarity pulse mode CMT-PA of a cold metal transition power supply technology for additive manufacturing. The adopted parameters are wire feeding speed of 6m/min, stacking speed of 0.6m/min, flow of high-purity argon protective gas of 20L/min and interlayer cooling time of 2 min.
No cracks are obvious on the section of the structural part prepared by the additive manufacturing (see figure 1), the transverse tensile strength is 324MPa, the yield strength is 212MPa, and the elongation after fracture is 12%.
Example 2:
in the aluminum alloy wire for additive manufacturing in this example, the chemical components by mass percentage were 4.33% of Cu, 1.56% of Mg, 2.8% of Cu and Mg, 0.68% of Mn, 0.13% of Ti, 0.14% of Fe, 0.11% of Si, 0.02% of Zn, and the balance Al.
The aluminum alloy wire provided by the embodiment is a solid wire with the diameter of 1.2mm, the surface of the solid wire is mechanically scraped and cleaned, and then the solid wire is used as a raw material, and a single-channel multilayer aluminum alloy thin-wall structure with corresponding components is formed by additive manufacturing through a CMT-PA electric arc. The adopted parameters are wire feeding speed of 6m/min, stacking speed of 0.6m/min, flow of high-purity argon protective gas of 20L/min and interlayer cooling time of 2 min.
No obvious crack is seen on the transverse and longitudinal sections of the structural part prepared by the additive manufacturing, the transverse tensile strength is 307MPa, the yield strength is 188MPa, and the elongation after fracture is 11.2%.
Example 3:
the chemical components of the aluminum alloy wire for additive manufacturing in this example were, by mass, 6.11% of Cu, 1.30% of Mg, 4.7% of Cu and Mg, 0.52% of Mn, 0.18% of Ti, 0.22% of Sc, 0.11% of Fe, 0.04% of Si, 0.05% of Zn, and the balance Al.
The aluminum alloy wire provided by the embodiment is a solid wire with the diameter of 1.2mm, the surface of the solid wire is mechanically scraped and cleaned, and then the solid wire is used as a raw material, and a single-channel multilayer aluminum alloy thin-wall structure with corresponding components is formed by additive manufacturing through a CMT-PA electric arc. The adopted parameters are wire feeding speed of 6m/min, stacking speed of 0.6m/min, flow of high-purity argon protective gas of 20L/min and interlayer cooling time of 2 min.
No obvious crack is seen on the transverse and longitudinal sections of the structural part prepared by the additive manufacturing, the transverse tensile strength is 338MPa, the yield strength is 220MPa, and the elongation after fracture is 13.7%.
Example 4:
in the aluminum alloy wire for additive manufacturing in this example, the chemical components, by mass, were 6.80% Cu, 1.22% Mg, 5.6% Cu and Mg, 0.56% Mn, 0.18% Ti, 0.22% Zr, 0.09% Fe, 0.04% Si, 0.02% Zn, and the balance Al.
The aluminum alloy wire provided by the embodiment is a solid wire with the diameter of 1.2mm, the surface of the solid wire is mechanically scraped and cleaned, and then the solid wire is used as a raw material, and a single-channel multilayer aluminum alloy thin-wall structure with corresponding components is formed by additive manufacturing through a CMT-PA electric arc. The adopted parameters are wire feeding speed of 6m/min, stacking speed of 0.6m/min, flow of high-purity argon protective gas of 20L/min and interlayer cooling time of 2 min.
No obvious crack is seen on the transverse and longitudinal sections of the structural part prepared by the additive manufacturing, the transverse tensile strength is 292MPa, the yield strength is 188MPa, and the elongation after fracture is 14.8%.
Comparative example:
the chemical components of the ER2319 aluminum alloy wire which is widely applied to the market at present comprise, by mass, 6.25% of Cu, 0.01% of Mg, 0.36% of Mn, 0.11% of Ti, 0.17% of Zr, 0.06% of V, 0.11% of Fe, 0.13% of Si, 0.02% of Zn and the balance of Al.
The diameter of the solid wire is 1.2mm, the surface of the solid wire is used as a raw material after mechanical scraping and cleaning, and a single-channel multilayer aluminum alloy wire thin-wall structure with corresponding components is manufactured by adopting CMT-PA electric arc for additive manufacturing. The adopted parameters are wire feeding speed of 6m/min, stacking speed of 0.6m/min, flow of high-purity argon protective gas of 20L/min and interlayer cooling time of 2 min.
No obvious crack is seen on the transverse and longitudinal sections of the structural part prepared by the additive manufacturing, the transverse tensile strength is 262MPa, the yield strength is 112MPa, and the elongation after fracture is 13.8%.
In summary, it can be known from the above examples and comparative examples that the aluminum alloy structural member formed by using the aluminum alloy wire provided by the present invention as a raw material for additive manufacturing can reach the same level as the existing ER2319 aluminum alloy, has no cracks on the surface, and has good mechanical properties, a transverse tensile strength of 290-340 MPa, a yield strength of 180-220 MPa, and an elongation after fracture of 11% -15%.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification, or directly or indirectly applied to other related fields, are included in the scope of the present invention.
Claims (10)
1. An aluminum alloy wire for additive manufacturing is characterized by comprising the following components in percentage by mass: 4.0-7.0% of Cu, 1.0-2.5% of Mg, wherein the mass ratio of Cu to Mg is 2.6-6, 0.4-0.8% of Mn, 0.1-0.8% of refining elements, and the balance of Al and inevitable impurity elements.
2. The additive manufacturing aluminum alloy wire according to claim 1, wherein the refining element is selected from one or more of Ti, Zr, Sc, and V;
based on the total mass of the aluminum alloy wire, the content of Ti is 0.1-0.4%;
preferably, the content of Zr is 0.1-0.4%;
preferably, the content of Sc is 0.1% -0.4%;
preferably, the content of V is 0.1% to 0.2%.
3. The aluminum alloy wire for additive manufacturing according to claim 1, wherein the inevitable impurity elements are one or more of Fe, Si and Zn; the content of a single impurity element in the inevitable impurity elements is not more than 0.15% based on the total mass of the aluminum alloy wire.
4. The aluminum alloy wire for additive manufacturing according to claim 1, wherein the mass percentage of Cu is 6 to 7% based on the total mass of the aluminum alloy wire.
5. The aluminum alloy wire for additive manufacturing according to claim 1, wherein a mass ratio of Cu to Mg in the aluminum alloy wire is 3 to 5.
6. The aluminum alloy wire for additive manufacturing according to claim 2, wherein a content of Ti is 0.15 to 0.3% based on a total mass of the aluminum alloy wire.
7. The aluminum alloy wire for additive manufacturing according to claim 2, wherein the content of Zr is 0.15% to 0.3% based on the total mass of the aluminum alloy wire.
8. The aluminum alloy wire for additive manufacturing according to claim 3, wherein a content of Fe is 0.1% or less based on the total mass of the aluminum alloy wire;
preferably, the content of Si is 0.08% or less;
preferably, the content of Zn is 0.05% or less.
9. Use of an aluminium alloy wire for additive manufacturing according to any one of claims 1 to 7 in the field of additive manufacturing.
10. Use according to claim 9 in additive manufacturing with arc, plasma beam, laser, electron beam or induction melting as a heat source.
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2021
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| US5211910A (en) * | 1990-01-26 | 1993-05-18 | Martin Marietta Corporation | Ultra high strength aluminum-base alloys |
| CN110885944A (en) * | 2019-09-12 | 2020-03-17 | 抚顺东工冶金材料技术有限公司 | Aluminum-copper alloy welding wire suitable for wire material additive manufacturing |
| CN112518168A (en) * | 2019-09-18 | 2021-03-19 | 南京理工大学 | Al-Cu-Mg aluminum alloy material and preparation method thereof |
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