CN115386815A - Copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy and method for simultaneously improving strength and plasticity - Google Patents
Copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy and method for simultaneously improving strength and plasticity Download PDFInfo
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Abstract
The invention discloses a copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy and a method for simultaneously improving strength and plasticity. The method of the invention comprises the following steps: cutting the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy to obtain a rectangular block; carrying out homogenizing annealing on the rectangular block to obtain an annealing material; and sequentially rolling and recrystallizing and annealing the annealed material, wherein the temperature of recrystallization and annealing is 600-850 ℃. The method of the invention enables the as-cast high-entropy alloy to be free of complex processes such as hot forging and forging, and the strength and the plasticity can be improved simultaneously by simple normal-temperature rolling and annealing. The method can ensure that the high-entropy alloy has high tensile strength and good plasticity at the same time, is safe, reliable and practical, and has very wide application prospect in the engineering field.
Description
Technical Field
The invention relates to a copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy and a method for simultaneously improving strength and plasticity, belonging to the technical field of high-entropy alloy structure regulation and control processes.
Background
High entropy alloys are a class of multi-principal element alloys having a simple phase composition of four or more different metal elements mixed in an equal or near-equal atomic ratio. Unlike traditional metals, small changes in the content of alloying elements can cause strong changes in the microstructure due to the complexity of the composition of the high-entropy alloying elements, which makes the properties of the high-entropy alloy difficult to predict. Currently, the research on high-entropy alloys is still in the early stage. The high-entropy alloy prepared by the prior art cannot obtain high strength and good plasticity at the same time, and the high-entropy alloy with excellent mechanical property also needs a complex thermomechanical treatment process, so that the actual production becomes difficult. Therefore, the technological bottleneck faced at present is how to improve the comprehensive mechanical properties of the high-entropy alloy, simplify the production process and realize the industrial application.
The copper-containing AlCoCrFeNi eutectic composition high-entropy alloy is one of high-entropy alloy types with high strength and wide application. The hot forging can improve the non-uniformity of the as-cast high-entropy alloy structure and improve the metal plasticity, but has high energy consumption, high noise and lower processing efficiency. The rolling process is effective in increasing the strength of the high entropy alloy, but inevitably results in a dramatic decrease in plasticity. The bimodal structure is a metal material simultaneously provided with two kinds of crystal grains with different sizes, the strength and the plasticity can be balanced, but the obtained bimodal structure usually needs complex structure regulation and deformation heat treatment processes such as thermal deformation, annealing in multiple temperature intervals and the like, so that the energy consumption is increased, the industrial production difficulty is increased, and the industrial application process is hindered. How to obtain the bimodal structure copper-containing AlCoCrFeNi eutectic component high-entropy alloy with excellent mechanical properties by a simple thermomechanical treatment method becomes a technical problem to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem of how to obtain the bimodal structure copper-containing AlCoCrFeNi eutectic composition high-entropy alloy with excellent mechanical property by a simple thermomechanical treatment method.
In order to solve the technical problems, the invention provides a method for simultaneously improving the strength and the plasticity of an as-cast high-entropy alloy containing a copper-containing AlCoCrFeNi eutectic component, which is characterized by comprising the following steps of:
cutting the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy to obtain a rectangular block;
carrying out homogenizing annealing on the rectangular block to obtain an annealing material;
and sequentially rolling and recrystallizing and annealing the annealed material, wherein the temperature of recrystallization and annealing is 600-850 ℃.
Preferably, the temperature of the homogenizing annealing is 1000-1200 ℃, and the time is 4-48 h.
Preferably, the homogenization annealing and the recrystallization annealing are both performed in an inert protective gas.
Preferably, the rolling deformation is 75% to 95%.
Preferably, the time of recrystallization annealing is 3 to 8 hours.
More preferably, the temperature of the recrystallization annealing is 700-800 ℃ and the time is 4-6 h.
Preferably, the homogenizing annealing is followed by cooling.
Preferably, the thickness of the rectangular block is more than 6mm and not more than 1/2 of the width of the rectangular block.
Preferably, the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy is Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 。
The invention also provides the copper-containing AlCoCrFeNi eutectic component high-entropy alloy obtained by the method in the technical scheme, which is characterized in that the tensile strength of the copper-containing AlCoCrFeNi eutectic component high-entropy alloy is 1406.0-1729.2 MPa, and the elongation is 22.6-24.3%.
The invention provides a method for simultaneously improving strength and plasticity of an as-cast high-entropy alloy containing a copper-containing AlCoCrFeNi eutectic component, which comprises the following steps of: cutting the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy to obtain a rectangular block; carrying out homogenizing annealing on the rectangular block to obtain an annealing material; and sequentially rolling and recrystallizing and annealing the annealed material, wherein the temperature of recrystallization and annealing is 600-850 ℃. According to the invention, through multiple tests, various process parameters are determined, particularly the recrystallization annealing temperature is an optimal temperature range obtained through numerous tests, and when the recrystallization annealing temperature is lower than 600 ℃, the strength of the copper-containing AlCoCrFeNi eutectic composition high-entropy alloy is greatly improved but the plasticity is reduced.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can greatly improve the tensile strength of the as-cast high-entropy alloy containing the copper AlCoCrFeNi eutectic composition, simultaneously improve the elongation, and can obtain the high-performance high-entropy alloy with different strength-plasticity matching according to the requirement by changing the annealing temperature, thereby having wide application prospect in the engineering field;
2. the copper-containing AlCoCrFeNi eutectic composition high-entropy alloy with both strength and plasticity is obtained by a simple thermomechanical treatment method, the tensile strength of the prepared high-entropy alloy is 1406.0-1729.2 MPa, the elongation is 22.6-24.3%, and the high-entropy alloy has huge potential in practical application and has the advantage of stable structure in medium-high temperature environment; in addition, the method has simple steps, is safe, reliable and practical, and can realize the industrial automatic and convenient production of the assembly line.
Drawings
FIG. 1 is a photograph of a sample of high entropy alloy containing eutectic composition of AlCoCrFeNi annealed at 700 ℃ prepared in example 1 after drawing;
FIG. 2 is a static tensile engineering stress-strain plot of a 700 ℃ annealed Cu-AlCoCrFeNi eutectic composition high entropy alloy sample prepared in example 1;
FIG. 3 is an EBSD-ipf plot of a 700 ℃ annealed Cu-AlCoCrFeNi eutectic composition high entropy alloy sample prepared in example 1;
FIG. 4 is a photograph of a sample of a high entropy alloy containing eutectic components of AlCoCrFeNi annealed at 800 ℃ prepared in example 2 after drawing;
FIG. 5 is a static tensile engineering stress-strain plot of a 800 ℃ annealed, 800 ℃ Cu-containing AlCoCrFeNi eutectic composition high entropy alloy sample prepared in example 2;
FIG. 6 is a photograph of a sample of high entropy alloy containing eutectic components of AlCoCrFeNi annealed at 450 ℃ prepared in comparative example 1 after drawing;
FIG. 7 is a static tensile engineering stress-strain plot of a 450 ℃ annealed Cu-AlCoCrFeNi eutectic composition high entropy alloy sample prepared in comparative example 1;
FIG. 8 is an EBSD-ipf diagram of a high entropy alloy sample containing a copper AlCoCrFeNi eutectic composition annealed at 450 ℃ prepared in comparative example 1;
FIG. 9 is a photograph of a sample of a high entropy alloy containing a eutectic composition of AlCoCrFeNi annealed at 550 ℃ prepared in comparative example 2 after drawing;
fig. 10 is a static tensile engineering stress-strain curve of a 550 ℃ annealed copper-containing AlCoCrFeNi eutectic composition high entropy alloy sample prepared in comparative example 2.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The invention provides a method for simultaneously improving strength and plasticity of an as-cast high-entropy alloy containing a copper-containing AlCoCrFeNi eutectic component, which comprises the following steps of:
cutting the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy to obtain a rectangular block;
carrying out homogenizing annealing on the rectangular block to obtain an annealing material;
and sequentially rolling and recrystallizing and annealing the annealed material, wherein the temperature of recrystallization and annealing is 600-850 ℃.
According to the invention, the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy is cut to obtain a rectangular block.
In the invention, the component of the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy is preferably Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 。
In the present inventionIn the light of the above, al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 The tensile strength of (A) is preferably 950.0. + -. 25.0MPa, and the elongation is preferably 16.0. + -. 0.5%.
In the invention, the thickness of the rectangular block is preferably more than 6mm and not more than 1/2 of the width of the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy. The present invention is not particularly limited with respect to the specific manner of the cutting.
After the rectangular block is obtained, the invention carries out homogenization annealing on the rectangular block to obtain an annealing material.
In the present invention, the temperature of the homogenizing annealing is preferably 1000 to 1200 ℃, more preferably 1150 ℃, and the time is preferably 4 to 48 hours.
In the present invention, the homogenizing annealing is preferably performed in a protective gas, preferably argon, and the homogenizing annealing is preferably performed in a box-type resistance furnace.
In the present invention, the homogenization annealing is preferably followed by cooling, and the cooling is preferably natural cooling to room temperature.
After the annealing material is obtained, the invention sequentially rolls and recrystallizes and anneals the annealing material.
In the present invention, the rolling deformation is preferably 75% to 95%, more preferably 80% to 85%.
In the present invention, the temperature of the recrystallization annealing is 600 to 850 ℃, preferably 700 to 800 ℃, and the time is preferably 3 to 8 hours, and more preferably 4 to 6 hours.
In the present invention, the recrystallization annealing is preferably performed in a protective gas, preferably argon gas, and the recrystallization annealing is preferably performed in a box-type resistance furnace.
The invention also provides the copper-containing AlCoCrFeNi eutectic component high-entropy alloy obtained by the method in the technical scheme, wherein the tensile strength of the copper-containing AlCoCrFeNi eutectic component high-entropy alloy is 1406.0-1729.2 MPa, and the elongation is 22.6-24.3%.
The process equipment and test equipment involved in the following examples are as follows:
homogenizing annealing and recrystallization annealing of the sample by using an OTF-1200X tube furnace;
rolling the sample by using a phi 180 two-roller mill, wherein the final rolling quantity is not less than 75%;
and (3) microstructure: the metallographic observation adopts an Axio Observer D1M inverted metallographic microscope produced by Carl Zeiss company; firstly, inlaying a sample by using phenolic resin, then sequentially grinding by using 400#, 600#, 1000#, 1500# and 3000# silicon carbide abrasive paper, and then polishing by using diamond polishing paste with the particle size of 0.5 mu m; the scanning electron microscope and the EBSD analysis adopt a Gemini 300 field emission scanning electron microscope and an EDAX-TSL electron backscatter diffraction system which are produced by Carl Zeiss company;
and (3) testing quasi-static tensile mechanical properties: according to the standard GB/T228.1-2010, a Zwick Z020 microcomputer control electronic universal testing machine is adopted to carry out room temperature axial quasi-static tensile test, and the strain rate is selected to be 10 -3 s -1 The test sample is a non-standard I-shaped piece with the thickness of 0.60mm, the length of 12.00mm, the gauge length of 5.00mm and the gauge width of 1.70mm.
Example 1
A thermomechanical treatment method for improving the plasticity of an as-cast high-entropy alloy containing eutectic components of Cu-AlCoCrFeNi is used for improving Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 The tensile strength of the high-entropy alloy is increased, and the plasticity is increased at the same time.
The thermomechanical treatment method is as follows:
the method comprises the following steps: sample pretreatment:
to cast Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 Cleaning and cutting the high-entropy alloy block into rectangular blocks of 6mm multiplied by 20mm multiplied by 40 mm;
step two: homogenizing and annealing:
firstly, opening a tube furnace, and preheating to 1150 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; after 4h of homogenization annealing, the sample was taken out and rapidly cooled to room temperature.
Step three: rolling:
and starting a rolling mill, and rolling the high-entropy alloy block subjected to homogenizing annealing at room temperature, wherein the thickness of the sample is rolled from 6mm to 0.6mm.
Step four: and (3) recrystallization annealing:
cutting the high-entropy alloy obtained in the step three into rectangular plates of 0.6mm multiplied by 20mm multiplied by 40 mm; opening the tube furnace, and preheating to 700 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; the sample was removed after 4h of recrystallization annealing and rapidly cooled to room temperature.
Experimental test analysis:
FIG. 1 is a photograph of a sample of high entropy alloy containing eutectic composition of AlCoCrFeNi annealed at 700 ℃ prepared in example 1 after drawing.
The high-entropy alloy plate subjected to the thermo-mechanical annealing at 700 ℃ prepared in the embodiment is used as a test sample to carry out experimental inspection, and according to the tensile test result shown in fig. 2, compared with the original as-cast alloy with the tensile strength of 950.0MPa and the elongation at break of 16.0%, the tensile strength of the high-entropy alloy plate subjected to the thermo-mechanical annealing at 700 ℃ is increased to 1729.2MPa, and the elongation at break is increased to 22.6%;
as can be seen from the EBSD-ipf chart in FIG. 3, the structure of the high-entropy alloy plate subjected to the thermomechanical treatment and annealing at 700 ℃ is large grains of the matrix and fine grains distributed along the shear band, and is a double-peak structure.
Example 2
A thermomechanical treatment method for improving the strength and plasticity of an as-cast high-entropy alloy containing a copper-containing AlCoCrFeNi eutectic component is used for improving Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 The tensile strength of the high-entropy alloy is increased, and the plasticity is increased at the same time.
The thermomechanical treatment method is as follows:
the method comprises the following steps: sample pretreatment:
to cast Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 Cleaning and cutting the high-entropy alloy block into rectangular blocks of 6mm multiplied by 20mm multiplied by 40 mm;
step two: homogenizing and annealing:
firstly, opening a tube furnace and preheating to 1200 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; after a homogenization anneal of 24h, the sample was removed and rapidly cooled to room temperature.
Step three: rolling:
and starting a rolling mill, and rolling the high-entropy alloy block subjected to homogenizing annealing at room temperature, wherein the thickness of the sample is rolled from 6mm to 0.6mm.
Step four: and (3) recrystallization annealing:
cutting the high-entropy alloy obtained in the step three into rectangular plates of 0.6mm multiplied by 20mm multiplied by 40 mm; opening the tube furnace, and preheating to 800 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; the sample was removed after 4h of recrystallization annealing and rapidly cooled to room temperature.
Experimental test analysis:
FIG. 4 is a photograph of a sample of high entropy alloy containing eutectic composition of AlCoCrFeNi, prepared in example 2, after drawing and annealing at 800 ℃.
The high-entropy alloy plate annealed at 800 ℃ prepared in this example was used as a test sample for experimental examination, and as can be seen from the tensile test result in fig. 5, the tensile strength of the high-entropy alloy plate annealed at 800 ℃ was increased to 1406.0MPa and the elongation at break was increased to 24.3%, compared with the original as-cast alloy tensile strength of 950.0MPa and the elongation at break of 16.0%.
Comparative example 1
One kind containsThe thermomechanical treatment method of the as-cast high-entropy alloy of the eutectic composition of copper AlCoCrFeNi makes Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 The tensile strength of the high-entropy alloy is improved but the elongation rate is greatly reduced.
The thermomechanical treatment method is as follows:
the method comprises the following steps: sample pretreatment:
to cast Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 Cleaning and cutting the high-entropy alloy block into rectangular blocks of 6mm multiplied by 20mm multiplied by 40 mm;
step two: homogenizing and annealing:
firstly, opening a tube furnace, and preheating to 1150 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; after 4h of homogenization annealing, the sample was taken out and rapidly cooled to room temperature.
Step three: rolling:
and starting a rolling mill, and rolling the high-entropy alloy block subjected to homogenizing annealing at room temperature, wherein the thickness of the sample is rolled from 6mm to 0.6mm.
Step four: and (3) recrystallization annealing:
cutting the high-entropy alloy obtained in the step three into rectangular plates of 0.6mm multiplied by 20mm multiplied by 40 mm; opening the tube furnace, and preheating to 450 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; the sample was removed after 4h of recrystallization annealing and rapidly cooled to room temperature.
Experimental test analysis:
FIG. 6 is a photograph of a sample of high entropy alloy containing eutectic components of AlCoCrFeNi annealed at 450 ℃ prepared in comparative example 1 after drawing.
The high-entropy alloy plate annealed at 450 ℃ prepared by the comparative example is used as a test sample to carry out experimental inspection, and according to the tensile test result shown in fig. 7, compared with the original as-cast alloy with the tensile strength of 950.0MPa and the elongation at break of 16.0%, the tensile strength of the high-entropy alloy plate annealed at 450 ℃ is improved to 1833.1MPa, but the elongation at break is reduced to 4.2%;
as can be seen from the EBSD-ipf chart in FIG. 8, the structure of the high-entropy alloy plate subjected to the thermomechanical treatment at 450 ℃ is a non-uniformly distributed shear band structure, and is not a bimodal structure.
Comparative example 2
A thermomechanical treatment method of Cu-contained AlCoCrFeNi eutectic composition as-cast high-entropy alloy to make Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 The tensile strength of the high-entropy alloy is greatly improved but the elongation is reduced.
The thermomechanical treatment method is as follows:
the method comprises the following steps: sample pretreatment:
to cast Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 Cleaning and cutting the high-entropy alloy block into rectangular blocks of 6mm multiplied by 20mm multiplied by 40 mm;
step two: homogenizing and annealing:
firstly, opening a tube furnace, and preheating to 1150 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; and opening a protective gas charging valve, filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process, taking out the sample after 4 hours, and rapidly cooling to the room temperature.
Step three: rolling:
and starting a rolling mill, and rolling the high-entropy alloy block subjected to homogenizing annealing at room temperature, wherein the thickness of the sample is rolled from 6mm to 0.6mm.
Step four: and (3) recrystallization annealing:
cutting the high-entropy alloy obtained in the step three into rectangular plates of 0.6mm multiplied by 20mm multiplied by 40 mm; opening the tube furnace, and preheating to 550 ℃; putting the high-entropy alloy block into an alumina ceramic crucible and putting into a tubular furnace; opening a protective gas charging valve, and filling high-purity argon with the purity of 99.999% into the furnace tube to finish the gas protection process; the sample was removed after 4h of recrystallization annealing and rapidly cooled to room temperature.
Experimental test analysis:
fig. 9 is a photograph of a sample of the high entropy alloy containing the eutectic composition of copper AlCoCrFeNi annealed at 550 ℃ prepared in comparative example 2 after drawing.
When the 550 ℃ annealed high-entropy alloy sheet prepared in the comparative example was used as a test sample, experimental examination was performed, and it is understood from the tensile test result in fig. 10 that the tensile strength of the 550 ℃ annealed high-entropy alloy sheet was increased to 2069.5MPa, but the elongation at break was decreased to 7.8%, compared with the original as-cast alloy tensile strength of 950.0MPa and the elongation at break of 16.0%.
The above-described embodiments are intended to be preferred embodiments of the present invention only, and not to limit the invention in any way and in any way, it being noted that those skilled in the art will be able to make modifications and additions without departing from the scope of the invention, which shall be deemed to also encompass the scope of the invention.
Claims (10)
1. A method for simultaneously improving strength and plasticity of an as-cast high-entropy alloy containing a copper-containing AlCoCrFeNi eutectic component is characterized by comprising the following steps of:
cutting the copper-containing AlCoCrFeNi eutectic composition as-cast high-entropy alloy to obtain a rectangular block;
carrying out homogenizing annealing on the rectangular block to obtain an annealing material;
and sequentially rolling and recrystallizing and annealing the annealed material, wherein the temperature of recrystallization and annealing is 600-850 ℃.
2. The method according to claim 1, characterized in that the temperature of the homogenizing annealing is 1000-1200 ℃ and the time is 4-48 h.
3. The method of claim 1, wherein the homogenizing anneal and the recrystallization anneal are both performed in an inert shielding gas.
4. The method of claim 1, wherein the rolling has a deformation of 75% to 95%.
5. The method according to claim 1, characterized in that the recrystallization annealing time is 3 to 8 hours.
6. The method according to claim 5, characterized in that the recrystallization annealing temperature is 700-800 ℃ and the time is 4-6 h.
7. The method of claim 1, further comprising cooling after the homogenizing anneal.
8. The method according to claim 1, wherein the rectangular block has a thickness greater than 6mm and not more than 1/2 of its width.
9. The method of claim 1, wherein the copper-containing AlCoCrFeNi eutectic composition as-cast high entropy alloy composition is Al 7.3 Co 21.4 Cr 10.6 Ti 4.9 Fe 21.4 Ni 31.9 Cu 2.5 。
10. The copper-containing AlCoCrFeNi eutectic composition high-entropy alloy obtained by the method of any one of claims 1 to 9, wherein the copper-containing AlCoCrFeNi eutectic composition high-entropy alloy has the tensile strength of 1406.0 to 1729.2MPa and the elongation of 22.6 to 24.3 percent.
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| CN113564443A (en) * | 2021-07-19 | 2021-10-29 | 上海应用技术大学 | High-strength high-plasticity cast high-entropy alloy and preparation method thereof |
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| CN113564443A (en) * | 2021-07-19 | 2021-10-29 | 上海应用技术大学 | High-strength high-plasticity cast high-entropy alloy and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| HIROYUKI Y. YASUDA等: "Formation of ultrafine-grained microstructure in Al0.3CoCrFeNi high entropy alloys with grain boundary precipitates", MATERIALS LETTERS * |
| JIAJUN LI 等: "Microstructures and Mechanical Properties of As Cast (Al7.5Co21.9Cr10.9Ti5.0Fe21.9Ni32.8)100-xCux High-Entropy Alloys", FRONTIERS IN MATERIALS * |
| 唐群华;蔡小勇;戴品强;花能斌;: "冷轧Al_(0.3)CoCrFeNi高熵合金退火再结晶组织和织构的演变", 材料科学与工程学报 * |
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