AU2021100222A4 - Aluminum alloy powder containing tib2 ceramic particles and application thereof - Google Patents
Aluminum alloy powder containing tib2 ceramic particles and application thereof Download PDFInfo
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- AU2021100222A4 AU2021100222A4 AU2021100222A AU2021100222A AU2021100222A4 AU 2021100222 A4 AU2021100222 A4 AU 2021100222A4 AU 2021100222 A AU2021100222 A AU 2021100222A AU 2021100222 A AU2021100222 A AU 2021100222A AU 2021100222 A4 AU2021100222 A4 AU 2021100222A4
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- 239000000843 powder Substances 0.000 title claims abstract description 46
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 42
- 239000002245 particle Substances 0.000 title claims abstract description 41
- 239000000919 ceramic Substances 0.000 title claims abstract description 22
- 238000007669 thermal treatment Methods 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 22
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 9
- 230000012447 hatching Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 229910010055 TiB Inorganic materials 0.000 claims 13
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 abstract description 5
- 229910033181 TiB2 Inorganic materials 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 description 19
- 239000000956 alloy Substances 0.000 description 19
- 239000000155 melt Substances 0.000 description 17
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 238000000889 atomisation Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 229910018131 Al-Mn Inorganic materials 0.000 description 5
- 229910018461 Al—Mn Inorganic materials 0.000 description 5
- 229910018580 Al—Zr Inorganic materials 0.000 description 5
- 229910000542 Sc alloy Inorganic materials 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 229910018134 Al-Mg Inorganic materials 0.000 description 4
- 229910018467 Al—Mg Inorganic materials 0.000 description 4
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 230000007123 defense Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910016583 MnAl Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 poor fluidity Chemical compound 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/142—Thermal or thermo-mechanical treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- 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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Powder Metallurgy (AREA)
Abstract
Disclosed are an aluminum alloy powder containing TiB2 ceramic particles and the use
thereof. The aluminum alloy powder comprising Mg, Sc, Zr, Mn and TiB2 particles, as
measured using a testing method as specified by the ASTM B557-15 Standard, include: yield
strength of 530 MPa to 545 MPa, tensile strength of 530 MPa to 550 MPa, and elongation after
fracture of 1.5%-6.5% after thermal treatment. The present invention does not display anisotropy
and can be used in related technical fields.
Description
ALUMINUM ALLOY POWDER CONTAINING TIB 2 CERAMIC PARTICLES AND
[0001] The present invention belongs to the technical field of material preparation, and
relates to an aluminum alloy containing ceramic particles.
[0002] Laser additive manufacturing takes laser as a heat source to melt metal powder, to
construct entities layer by layer on the basis of three-dimensional model data. The laser additive
manufacturing technique has broken the limitation of moulds, shortened the development cycle of
materials, and also reduced the weight without loss of strength through topological optimization
and lattice structure, thereby having broad application prospects in aerospace, national defense
and military industry and other advanced fields.
[0003] Owing to its features of low density and high specific strength, aluminum alloy is
one of the important raw materials in aerospace, national defense and military industry. However,
due to the disadvantages of aluminum such as poor fluidity, high laser reflectivity and easy
oxidation, samples formed by laser additive manufacturing often have many defects. Currently,
the research and application are mostly limited to Al-Si alloy, such as A356, AlSiOMg, AlSi12,
etc., this is because Al-Si alloy has good casting performances, such as good fluidity, and low
shrinkage rate. However, due to low strength and poor plasticity, the mechanical properties of
Al-Si alloy are far from the use requirements.
[0004] In order to solve the problem in aluminum alloy laser additive manufacturing,
researchers at home and abroad have focused their attention onto Al-Mg alloy. In the Al-Mg alloy,
alloy elements such as Sc and Zr are added, such that the alloy can form A1 3 (Sc, Zr)x particles
through subsequent thermal treatment to improve strength and thermal stability greatly. In this
way, workpieces with high strength and high plasticity can be processed by laser additive
manufacturing. However, the strength of AlMgScZr alloy still fails to meet the usage
requirements.
[0005] Therefore, the widening of the aluminum alloy system suitable for laser additive manufacturing and further improvement of the strength of the formed workpieces have become particularly important.
[0006] An object of the present invention is to provide aluminum alloy powder containing
TiB 2 ceramic particles and an application thereof, to overcome the defects existing in the prior art
and meet demands of people.
[0007] The aluminum alloy powder containing TiB2 ceramic particles contains Mg, Sc, Zr,
Mn and TiB 2; and
[0008] the aluminum alloy powder containing TiB 2 ceramic particles is detected through a
method specified in the ASTM B557-15 Standard, and after thermal treatment, the yield
strength is 530 MPa to 545 MPa; the tensile strength is 530 MPa to 550 MPa, and the
elongation after fracture is 1.5%-6.5%.
[0009] Preferably, the aluminum alloy powder containing TiB 2 ceramic particles includes
components of the following mass fractions:
[0010] Mg: 3.0-15.0%, preferably 4.0-6.0%
[0011] Sc: 0.1-3.0%, preferably 0.1-1.0%
[0012] Zr: 0.1-3.0%, preferably 0.1-1.0%
[0013] Mn: 0.1-2.0%, preferably 0.1-1.0%
[0014] TiB 2: 0.5-12.0%, preferably, 1.0-6.0%, especially preferably 1.0-4.5%, and
[0015] the remainder is Al and unavoidable impurities;
[0016] TiB 2 exists in a form of ceramic particles at a particle size of 5-2000 nm;
[0017] the selected aluminum alloy can be used to prepare powder with good sphericity and
high laser absorptivity by employing an atomization process in vacuum. When the aluminum
alloy powder is used for laser additive manufacturing, such problems as uneven powder spreading
and heat accumulation can be improved, thereby decreasing defects and cracks during the shaping
process and enhancing the shaping qualities.
[0018] The above aluminum alloy includes Mg at a mass fraction of 3.0-15.0%, preferably,
4.0-6.0%. The Al-Mg alloy has good corrosion resistance, thermal resistance, and especially excellent weldability, such that the Al-Mg alloy is suitable for laser additive manufacturing. In addition, Mg element has a large solid solubility in Al matrix, and can also form reinforced phases such asMg5Al 8 and Mg 2 A13 together with the Al matrix, thereby playing the effects of solution strengthening and dispersion strengthening.
[0019] The above aluminum alloy includes Sc at a mass fraction of 0.1-3.0%, preferably,
0.1-1.0%. The Sc element and the Al matrix form A1 3 Sc particles, thereby providing an effective
nucleation substrate for the matrix to improve the nucleation rate and thus greatly refine the grain
size.
[0020] The above aluminum alloy includes Zr at a mass fraction of 0.1-3.0%, preferably,
0.1-1.0%. Zr element can be added to replace part of the Sc atoms, to form A1 3 (Sc, Zr)x particles with better thermal stability, thereby improving the mechanical properties of the material at high
temperature.
[0021] The above aluminum alloy includes Mn at a mass fraction of 0.1-2.0%, preferably,
0.1-1.0%. Mn element can be added to form MnAl 6 dispersoid particles together with Al matrix,
thereby hindering the grain growth; and Mn element can also dissolve an impurity element Fe, to
form (Fe, Mn)A1 6 particles, thereby reducing the adverse effects of Fe.
[0022] The above aluminum alloy includes TiB2 at a mass fraction of 0.5-12.0%, preferably,
1.0-6.0%, and especially preferably 1.0-4.5%. The TiB 2 exists in a form of ceramic particles at a particle size of 5-2000 nm. TiB 2 particles can not only be used as an effective nucleation substrate
of Al to refine the grain size, but also influence the diffusion rates of alloy elements such as Sc,
Zr, and Mn, to improve the morphology and distribution of the second phase. In particular, TiB 2
particles also can improve the heat distribution in the process of laser additive manufacturing to
reduce the residual stress and anisotropy.
[0023] For the preparation process of the aluminum alloy powder containing TiB 2 ceramic
particles, please refer to the process reported in patent CN100999018A, which specifically
includes the following steps:
[0024] Al, aluminum is heated to a temperature of 650 to 900°C, to obtain a melt;
[0025] A2, KBF 4 and K 2TiF 6are evenly mixed, baked to dry and then added into the melt
obtained in step Al, and reacted with stirring preferably for 5-60 min, and finally the scums are removed;
[0026] preferably in step A2, the mass ratio of KBF 4 to K 2TiF 6 is 1:0.5 to 1:2;
[0027] A3, to the melt obtained in step A2 are successively added Al-Zr alloy, Al-Sc alloy,
Al-Mn alloy as well as Mg, the mixture is degassed and refined at a temperature of 650 to 900°C
for 10 to 20 min, and then the scums are removed; and
[0028] A4, the melt obtained in step A3 is atomized, then the aluminum alloy powder is
obtained.
[0029] The atomization process is a conventional technique, reference can be made to the
method reported in Patent CN107262730A, and the method specifically includes the following
steps:
[0030] the melt is heated to 700 to 1000°C, and atomized under the protection of Ar gas
and/or He gas at the pressure of 0.5 to 10 MPa, and the nozzle used in atomization has a diameter
of 0.5 to 5 mm. The aluminum alloy powder containing TiB 2 ceramic particles is especially
suitable for laser additive manufacturing, including the following steps:
[0031] SI, drawing three-dimensional graphics of samples to be processed through
graphics software, and saving in an STL format;
[0032] S2, sieving the aluminum alloy powder provided in the present invention to leave
powder with a particle size range of 15 to 53 m, and preparing with a metal printer to obtain
the samples drawn in step Sl; and
[0033] S3, conducting subsequent thermal treatment on the samples obtained in step S2, to
further improve their performances.
[0034] Preferably, a selective laser melting (SLM) technique is employed in step S2, with a
laser power of 150 to 350 W, a scanning speed of 200 to 2000 mm/s, a hatching space of 0.05 to
0.20 mm, and a layer thickness of 30 to 40 m.
[0035] Preferably, as to the thermal treatment in step S3, the heating temperature is
300-350°C, the holding time is 1-8 h, and air cooling is adopted.
[0036] The present invention has the following beneficial effects:
[0037] Upon tests, as to the aluminum alloy powder containing TiB 2 ceramic particles, the
samples formed by SLM will have a compactness of greater than 99%, and after thermal treatment, the yield strength is 540 MPa, the tensile strength is 550 MPa, and the elongation after fracture is 6.2%, and no obvious anisotropy exists, therefore, the aluminum alloy powder containing TiB2 ceramic particles can meet the requirements in applications of related fields.
[0038] In the following embodiments, performance parameters can be tested through the
method specified in the ASTM B557-15 Standard.
[0039] Embodiment 1
[0040] Formula: (percentage by weight)
[0041] Mg: 4.5wt%
[0042] Sc: 0.9wt%
[0043] Zr: 0.5wt%
[0044] Mn: 0.5wt%
[0045] TiB 2 :1.4wt%
[0046] The remainder is Al and unavoidable impurities.
[0047] The preparation method is as follows:
[0048] 1. aluminum is heated to a temperature of 700°C, to obtain a melt;
[0049] 2. KBF 4 and K2TiF 6 are mixed at a mass ratio of 1:1.5, baked to dry and then added
into the melt, and reacted with stirring for 30 min, and finally the scums are removed;
[0050] 3. Al-Zr alloy, Al-Sc alloy, Al-Mn alloy as well as Mg are successively added,
degassed and refined, and left at a temperature of 750°C for 15 min, and then the scums are
removed;
[0051] 4. the melt is heated to 850°C, atomized under the protection of Ar gas at the
pressure of 3.0 MPa, the nozzle used in atomization has a diameter of 4.0 mm, and then the
aluminum alloy powder is obtained;
[0052] 5. the above aluminum alloy powder is sieved to leave powder with a particle size
range of 15 to 53 m, and formed by the SLM technique to obtain samples, wherein the process
parameters are as follows: the laser power is 250 W, the scanning speed is 800 mm/s, the hatching
space is 0.10 mm, and the layer thickness is 30 m; and
[0053] 6. the formed samples are subjected to thermal treatment, and heated to 325°C for a
holding time of 2 h.
[0054] Upon tests, as to the powder, the samples formed by SLM will have a compactness
of greater than 99%, and after thermal treatment, the yield strength is 540 MPa, the tensile
strength is 550 MPa, the elongation after fracture is 6.2%, and no obvious anisotropy exists.
[0055] Embodiment 2
[0056] Formula:
[0057] Mg: 5.6 wt%
[0058] Sc: 0.2 wt%
[0059] Zr: 0.1 wt%
[0060] Mn: 0.2 wt%
[0061] TiB 2 : 4.2 wt%
[0062] The remainder is Al and unavoidable impurities.
[0063] The preparation method is as follows:
[0064] 1. aluminum is heated to a temperature of 680°C, to obtain a melt;
[0065] 2. KBF 4 and K2TiF 6 are mixed at a mass ratio of 1:1.5, baked to dry and then added
into the melt, and reacted with stirring for 30 min, and finally the scums are removed;
[0066] 3. Al-Zr alloy, Al-Sc alloy, Al-Mn alloy as well as Mg are successively added, degassed and refined, and left at a temperature of 720°C for 15 min, and then the scums are
removed;
[0067] 4. the melt is heated to 820°C, atomized under the protection of He gas at the
pressure of 3.5 MPa, the nozzle used in the atomization has a diameter of 4.2 mm, and then the
aluminum alloy powder is obtained;
[0068] 5. the above aluminum alloy powder is sieved to leave powder with a particle size
range of 15 to 53 m, and formed by the SLM technique to obtain samples, wherein the process
parameters are as follows: the laser power is 225 W, the scanning speed is 1000 mm/s, the
hatching space is 0.15 mm, and the layer thickness is 40 m; and
[0069] 6. the formed samples are subjected to thermal treatment, and heated to 350°C for a
holding time of 1 h.
[0070] Upon tests, as to the powder, the samples formed by SLM will have a compactness
of greater than 99%, and after thermal treatment, the yield strength is 530 MPa, the tensile
strength is 538 MPa, the elongation after fracture is 4.4%, and no obvious anisotropy exists.
[0071] Embodiment 3
[0072] Formula:
[0073] Mg: 14.2 wt%
[0074] Sc: 1.5 wt%
[0075] Zr: 1.5 wt%
[0076] Mn: 0.1 wt%
[0077] TiB 2 : 11.8 wt%
[0078] The remainder is Al and unavoidable impurities.
[0079] The preparation method is as follows:
[0080] 1. aluminum is heated to a temperature of 660°C, to obtain a melt;
[0081] 2. KBF 4 and K2TiF 6 are mixed at a mass ratio of 1:1.5, baked to dry and then added
into the melt, and reacted with stirring for 30 min, and finally the scums are removed;
[0082] 3. Al-Zr alloy, Al-Sc alloy, Al-Mn alloy as well as Mg are successively added,
degassed and refined, and left at a temperature of 720°C for 15 min, and then the scums are
removed;
[0083] 4. the melt is heated to 820°C, atomized under the protection of He gas at the
pressure of 3.5 MPa, the nozzle used in the atomization has a diameter of 4.2 mm, and then the
aluminum alloy powder is obtained;
[0084] 5. the above aluminum alloy powder is sieved to leave powder with a particle size
range of 15 to 53 m, and formed by the SLM technique to obtain samples, wherein the process
parameters are as follows: the laser power is 175 W, the scanning speed is 500 mm/s, the hatching
space is 0.05 mm, and the layer thickness is 40 m; and
[0085] 6. the formed samples are subjected to thermal treatment, and heated to 300°C for a
holding time of 6 h.
[0086] Upon tests, as to the powder, the samples formed by SLM will have a compactness
of greater than 99%, and after thermal treatment, the yield strength is 535 MPa, the tensile strength is 548 MPa, the elongation after fracture is 2.6%, and no obvious anisotropy exists.
[0087] Embodiment 4
[0088] Formula: (percentage by weight)
[0089] Mg: 3.5 wt%
[0090] Sc: 2.2 wt%
[0091] Zr: 2.0 wt%
[0092] Mn: 1.2 wt%
[0093] TiB 2 : 5.6 wt%
[0094] The remainder is Al and unavoidable impurities.
[0095] The preparation method is as follows:
[0096] 1. aluminum is heated to a temperature of 720°C, to obtain a melt;
[0097] 2. KBF 4 and K2TiF 6 are mixed at a mass ratio of 1:1.5, baked to dry and then added
into the melt, and reacted with stirring for 30 min, and finally the scums are removed;
[0098] 3. Al-Zr alloy, Al-Sc alloy, Al-Mn alloy as well as Mg are successively added,
degassed and refined, and left at a temperature of 750°C for 15 min, and then the scums are
removed;
[0099] 4. the melt is heated to 850°C, atomized under the protection of He gas at the
pressure of 3.0 MPa, the nozzle used in the atomization has a diameter of 4.0 mm, and then the aluminum alloy powder is obtained;
[0100] 5. the above aluminum alloy powder is sieved to leave powder with a particle size
range of 15 to 53 m, and formed by the SLM technique to obtain samples, wherein the process
parameters are as follows: the laser power is 325 W, the scanning speed is 1500 mm/s, the
hatching space is 0.17 mm, and the layer thickness is 40 m; and
[0101] 6. the formed samples are subjected to thermal treatment, and heated to 300°C for a
holding time of 6 h.
[0102] Upon tests, as to the powder, the samples formed by SLM will have a compactness
of greater than 99%, and after thermal treatment, the yield strength is 545 MPa, the tensile
strength is 546 MPa, the elongation after fracture is 1.8%, and no obvious anisotropy exists.
Claims (10)
1. Aluminum alloy powder containing TiB 2 ceramic particles, comprising Mg, Sc, Zr, Mn
and TiB 2 particles, wherein attributes of the aluminum alloy powder after thermal treatment, as
measured using a testing method as specified by the ASTM B557-15 Standard, include: yield
strength of 530 MPa to 545 MPa, tensile strength of 530 MPa to 550 MPa, and elongation after
fracture of 1.5%-6.5%.
2. The aluminum alloy powder containing TiB 2 ceramic particles of claim 1, wherein the TiB 2 particles have a mass fraction of 0.5-12.0%.
3. An aluminum alloy powder containing TiB 2 ceramic particles, comprising components
of the following mass fractions:
Mg: 3.0-15.0%
Sc: 0.1-3.0%
Zr: 0.1-3.0%
Mn: 0.1-2.0% TiB 2 : 0.5-12.0%
wherein the remainder is Al and unavoidable impurities.
4. The aluminum alloy powder containing TiB 2 ceramic particles of claim 3, comprising components of the following mass fractions:
Mg: 4.0-6.0%
Sc: 0.1-1.0%
Zr: 0.1-1.0%
Mn: 0.1-1.0% TiB 2 :1.0-6.0%
wherein the remainder is Al and unavoidable impurities.
5. The aluminum alloy powder containing TiB 2 ceramic particles of claim 3, comprising components of the following mass fractions:
Mg: 4.0-6.0%
Sc: 0.1-1.0%
Zr: 0.1-1.0%
Mn: 0.1-1.0%
TiB 2 :1.0-4.5%
wherein the remainder is Al and unavoidable impurities.
6. The aluminum alloy powder containing TiB 2 ceramic particles of any one of claims 1 to
, wherein the TiB 2 exists in a form of ceramic particles at a particle size of 5-2000 nm.
7. An application of the aluminum alloy powder containing TiB 2 ceramic particles
according to any one of claims 1-6, wherein the aluminum alloy powder is applied to laser
additive manufacturing.
8. The application according to claim 7, wherein the application method comprises the
following steps:
Si, drawing three-dimensional graphics of samples to be processed through graphics
software, and saving in an STL format;
S2, sieving the aluminum alloy powder provided in the present invention to leave powder
with a particle size range of 15 to 53 m, and preparing with a metal printer to obtain the
samples drawn in step Sl; and
S3, conducting subsequent thermal treatment on the samples obtained in step S2.
9. The application of claim 8, wherein a selective laser melting technique is employed in
step S2.
10. The application of claim 9, wherein a selective laser melting technique is employed in
step S2, with a laser power of 150 to 350 W, a scanning speed of 200 to 2000 mm/s, a hatching
space of 0.05 to 0.20 mm, and a layer thickness of 30 to 40 m; and as tothe thermal treatment
in step S3, the heating temperature is 300-350°C, the holding time is 1-8 h, and air cooling is
adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021100222A AU2021100222A4 (en) | 2019-07-01 | 2021-01-14 | Aluminum alloy powder containing tib2 ceramic particles and application thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585559.8 | 2019-07-01 | ||
| PCT/CN2020/083119 WO2021000617A1 (en) | 2019-07-01 | 2020-04-03 | Tib2 ceramic particle-containing aluminum alloy powder and application thereof |
| AU2021100222A AU2021100222A4 (en) | 2019-07-01 | 2021-01-14 | Aluminum alloy powder containing tib2 ceramic particles and application thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2020/083119 Division WO2021000617A1 (en) | 2019-07-01 | 2020-04-03 | Tib2 ceramic particle-containing aluminum alloy powder and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021100222A4 true AU2021100222A4 (en) | 2021-04-08 |
Family
ID=75280499
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| AU2021100222A Active AU2021100222A4 (en) | 2019-07-01 | 2021-01-14 | Aluminum alloy powder containing tib2 ceramic particles and application thereof |
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| Country | Link |
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