CN115074598A - Multi-principal-element alloy with high damping performance and high strength and preparation process thereof - Google Patents
Multi-principal-element alloy with high damping performance and high strength and preparation process thereof Download PDFInfo
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- CN115074598A CN115074598A CN202210850618.1A CN202210850618A CN115074598A CN 115074598 A CN115074598 A CN 115074598A CN 202210850618 A CN202210850618 A CN 202210850618A CN 115074598 A CN115074598 A CN 115074598A
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- 238000013016 damping Methods 0.000 title claims abstract description 45
- 229910001325 element alloy Inorganic materials 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 55
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000005260 corrosion Methods 0.000 claims abstract description 13
- 238000005098 hot rolling Methods 0.000 claims abstract description 13
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 230000007547 defect Effects 0.000 claims abstract description 6
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 238000009792 diffusion process Methods 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 230000032683 aging Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 5
- 238000003723 Smelting Methods 0.000 claims 2
- 238000005096 rolling process Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract description 7
- 230000008018 melting Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 description 8
- 239000010963 304 stainless steel Substances 0.000 description 4
- 229910000861 Mg alloy Inorganic materials 0.000 description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005381 magnetic domain Effects 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- 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
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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Abstract
The invention discloses a multi-principal-element alloy with high damping performance and high strength, which is prepared from 23.75 at.% of Fe, 23.75 at.% of Cr, 23.75 at.% of Co, 23.75 at.% of Ni and 23.75 at.% of Ti: 5 at.%, and the preparation process comprises the following specific steps: s1, taking high-purity Fe, Cr, Co, Ni and Ti as raw materials, and mixing the raw materials according to a certain mass ratio: 23.75 at.% Fe, 23.75 at.% Cr, 23.75 at.% Co, 23.75 at.% Ni and Ti: adding 5 at.% of the alloy into a vacuum induction melting furnace for melting to produce an alloy ingot with the components; s2, performing diffusion annealing on the alloy ingot obtained in the step S1 at 1000-1200 ℃ for 5 hours, and then performing hot rolling on the ingot to obtain an alloy plate with the thickness of 5 mm; and S3, carrying out solution treatment on the hot-rolled alloy plate obtained in the S2 in a vacuum heating furnace, and cooling the alloy plate to room temperature after the solution treatment is finished. The alloy of the invention has high damping performance and simultaneously has good mechanical property and excellent corrosion resistance, thereby widening the use environment of the damping alloy and solving the defect that the high damping performance and the mechanical property can not coexist in the traditional damping alloy.
Description
Technical Field
The invention relates to the technical field of multi-principal element alloys, in particular to a high-strength FeCrCoNiTi multi-principal element alloy with high damping performance.
Background
The mechanical vibration and noise generated by the mechanical moving parts seriously affect the service performance, reliability and service life of the equipment. The damping alloy is a metal material which has enough mechanical property and can convert mechanical vibration energy into heat energy through reversible movement of alloy microstructures such as dislocation, twin boundaries, phase boundaries, magnetic domain walls and the like caused by mechanical vibration strain, thereby attenuating mechanical vibration and noise to a certain extent. At present, Mn-Cu alloy which generates damping by using twin boundary movement, Mg alloy which generates damping by using dislocation movement, ferromagnetic Fe-based alloy and Ni-based alloy which generate damping by using magnetic domain movement, and the like are mainly used as damping alloy with better damping performance. In practical engineering application, the existing damping alloy has many defects, and the comprehensive performance requirement of a complex service environment on the damping alloy is often difficult to meet. For example, although Mn-Cu alloy and Mg alloy have high damping performance, the corrosion resistance of the Mn-Cu alloy and the Mg alloy is poor, and the Mg alloy also has short plates with low mechanical strength and difficult plastic processing. The ferromagnetic Fe-based and Ni-based damping alloy generally has good corrosion resistance which is equivalent to or higher than that of the ferritic stainless steel, but has the defect that the damping performance is easily influenced and reduced by an environmental magnetic field because the damping mechanism is derived from the movement of a magnetic domain boundary.
Therefore, the invention provides the FeCrCoNiTi multi-principal-element damping alloy with high damping performance, high strength and good corrosion resistance by depending on the multi-principal-element alloy developed in the material field in recent years.
Disclosure of Invention
The invention provides a multi-principal-element alloy with high damping performance and high strength and a preparation process thereof, which are used for solving the problems in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-principal element alloy with high damping performance and high strength is prepared from Fe 23.75 at.%, Cr 23.75 at.%, Co 23.75 at.%, Ni 23.75 at.% and Ti: 5 at.%.
The invention also provides a preparation process of the multi-principal-element alloy with high damping performance and high strength, which comprises the following specific steps:
s1, taking high-purity Fe, Cr, Co, Ni and Ti as raw materials, and mixing the raw materials according to a certain mass ratio: 23.75 at.% Fe, 23.75 at.% Cr, 23.75 at.% Co, 23.75 at.% Ni and Ti: adding 5 at.% of the alloy into a vacuum induction melting furnace for melting to produce an alloy ingot with the components;
s2, performing diffusion annealing on the alloy ingot obtained in the step S1 at 1000-1200 ℃ for 5 hours, and then performing hot rolling on the ingot to obtain an alloy plate with the thickness of 5 mm;
s3, carrying out solution treatment on the hot-rolled alloy plate obtained in the step S2 in a vacuum heating furnace, and cooling the alloy plate to room temperature after the solution treatment is finished;
and S4, heating the alloy plate subjected to solution treatment in the S3 in a vacuum heating furnace to 700-900 ℃, preserving heat for 8 hours, carrying out aging treatment, and cooling the alloy plate to room temperature by water after the aging treatment is finished.
As a further improvement scheme of the technical scheme: in S1, the metals of Fe, Cr, Co, Ni and Ti with high purity refer to metal raw materials with the pure metal element content of more than 99.9 wt%.
As a further improvement scheme of the technical scheme: in S2, the main technological parameters of hot rolling are that the hot rolling temperature is 1000-1200 ℃, the reduction of each hot rolling pass is 2mm, and the alloy plate is cooled to room temperature after the last hot rolling pass is finished.
As a further improvement scheme of the technical scheme: at S2, the ingot is hot rolled for refining the alloy structure and reducing casting defects.
As a further improvement scheme of the technical scheme: in S3, the heating temperature of the solution treatment is 1000-1200 ℃, and the heat preservation time is 1 hour.
As a further improvement scheme of the technical scheme: the multi-principal-element alloy plate prepared finally has high damping performance and damping internal loss Q -1 Is 0.036.
As a further improvement scheme of the technical scheme: the multi-principal-element alloy plate prepared finally has high yield strength, and the yield strength is 823 MPa.
As a further improvement scheme of the technical scheme: the multi-principal element alloy plate prepared finally has high elongation which is more than 20%.
As a further improvement scheme of the technical scheme: the multi-principal element alloy plate prepared finally has high corrosion resistance, and the self-corrosion current density is about 3.4 multiplied by 10 -7 mA·cm -2 。
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the traditional alloy, the multi-principal-element alloy has higher yield strength and tensile strength, the yield strength of the obtained multi-principal-element alloy after the aging treatment can reach 823MPa, the tensile strength can reach 1296MPa, and the elongation of more than 20 percent can be still maintained on the basis of the high strength.
2. The alloy after aging treatment passes a single cantilever beam mode test at room temperature, and the damping internal loss Q of the alloy is 0.1% of strain -1 0.036, and has higher damping performance.
3. The alloy has excellent corrosion resistance, and the self-corrosion current density is about 3.4 multiplied by 10 in 1mol/LNaCl at room temperature -7 mA·cm -2 Lower than 9.7X 10 of 304 stainless steel under the same test conditions -7 mA·cm -2 And has stronger corrosion resistance than 304 stainless steel.
4. The alloy has simple heat treatment process, good plasticity and processing performance, high damping performance under high strain amplitude and wide application range.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 shows (FeCrCoNi) 95 Ti 5 OM map of alloy as-cast;
FIG. 2 shows (FeCrCoNi) 95 Ti 5 OM diagram after alloy 1100 deg.C solution treatment;
FIG. 3 shows (FeCrCoNi) 95 Ti 5 OM picture of alloy aged for 8h at 800 ℃;
FIG. 4 shows (FeCrCoNi) 95 Ti 5 Stress-strain curve diagram of alloy after 1100 deg.C solution treatment and 800 deg.C aging for 8 h;
FIG. 5 shows (FeCrCoNi) 95 Ti 5 The damping internal friction Q-1 performance diagram of the alloy after 1100 ℃ solution treatment and 800 ℃ aging for 8 hours;
FIG. 6 shows (FeCrCoNi) 95 Ti 5 Polarization curves of the alloy and 304 stainless steel in 1mol/L NaCl at room temperature.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, in an embodiment of the present invention, a multi-element alloy with high damping performance and high strength is formed by mixing Fe 23.75 at.%, Cr 23.75 at.%, Co 23.75 at.%, Ni 23.75 at.%, and Ti: 5 at.%.
A preparation method of a multi-principal-element alloy with high damping performance and high strength comprises the following steps:
the method comprises the following steps: melting with an induction melting furnace under an argon atmosphere>99.9 wt.%) of Fe, Cr, Co, Ni and Ti, and melting them five times to ensure their components are uniform, thus producing FeCrCoNi 95 Ti 5 An ingot of the composition;
step two: carrying out diffusion annealing on the ingot obtained in the step one at 1100 ℃ for 5 hours, then carrying out hot rolling on the ingot to refine the alloy structure and reduce the casting defects, and obtaining an alloy plate with the thickness of 5mm, wherein the initial hot rolling temperature is 1100 ℃, the reduction per time is 2mm, and after the last hot rolling is finished, carrying out water cooling to room temperature;
step three: carrying out solution treatment on the hot-rolled alloy plate obtained in the step two in a vacuum heating furnace, wherein the heating temperature of the solution treatment is 1100 ℃, the heat preservation time is 1 hour, and after the solution treatment is finished, cooling the hot-rolled alloy plate to room temperature by water;
step four: heating the alloy plate subjected to the solution treatment in the third step to 800 ℃ in a vacuum heating furnace, preserving heat for 8 hours, carrying out aging treatment, and cooling the alloy plate to room temperature by water after the aging treatment is finished to obtain (FeCrCoNi) 95 Ti 5 And (3) alloying.
The multi-principal-element alloy plate prepared finally has high damping performance and internal damping loss Q -1 Can reach 0.036, and simultaneously, the productAlso has yield strength of up to 823MPa and elongation of 20% or more, and self-corrosion current density of about 3.4X 10 - 7 mA·cm -2 And the corrosion resistance is stronger than that of 304 stainless steel under the same conditions.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. A multi-principal element alloy with high damping performance and high strength is characterized by comprising 23.75 at.% of Fe, 23.75 at.% of Cr, 23.75 at.% of Co, 23.75 at.% of Ni and 23.75 at.% of Ti: 5 at.%.
2. The preparation process of the multi-principal-element alloy with high damping performance and high strength according to claim 1, which is characterized by comprising the following specific steps:
s1, taking high-purity Fe, Cr, Co, Ni and Ti as raw materials, and mixing the raw materials according to a certain mass ratio: 23.75 at.% Fe, 23.75 at.% Cr, 23.75 at.% Co, 23.75 at.% Ni and Ti: 5 at.% of the alloy is added into a vacuum induction smelting furnace for smelting to produce an alloy ingot with the components;
s2, performing diffusion annealing on the alloy ingot obtained in the step S1 at 1000-1200 ℃ for 5 hours, and then performing hot rolling on the ingot to obtain an alloy plate with the thickness of 5 mm;
s3, carrying out solution treatment on the hot-rolled alloy plate obtained in the step S2 in a vacuum heating furnace, and cooling the alloy plate to room temperature after the solution treatment is finished;
and S4, heating the alloy plate subjected to solution treatment in the S3 in a vacuum heating furnace to 700-900 ℃, preserving heat for 8 hours, carrying out aging treatment, and cooling the alloy plate to room temperature by water after the aging treatment is finished.
3. The process of claim 2, wherein the high purity Fe, Cr, Co, Ni and Ti metal in S1 is a metal material with a pure metal element content of more than 99.9 wt%.
4. The process for preparing a multi-principal-element alloy with high damping performance and high strength according to claim 2, wherein in S2, the main process parameters of hot rolling are that the hot rolling temperature is 1000-1200 ℃, the rolling reduction per pass is 2mm, and the alloy plate is cooled to room temperature after the last hot rolling pass is finished.
5. The process for preparing a multi-element alloy with high damping performance and high strength according to claim 2, wherein the ingot is hot-rolled for refining the alloy structure and reducing casting defects in S2.
6. The process for preparing multi-element alloy with high damping performance and high strength as claimed in claim 2, wherein the heating temperature of the solution treatment in S3 is 1000-1200 ℃, and the holding time is 1 hour.
7. The preparation process of the multi-principal-element alloy with high damping performance and high strength as claimed in claim 2, wherein the finally prepared multi-principal-element alloy plate has high damping performance and damping internal loss Q -1 Is 0.036.
8. The process for preparing a multi-principal-element alloy with high damping performance and high strength according to claim 2, wherein the finally prepared multi-principal-element alloy plate has high yield strength, and the yield strength is 823 Mpa.
9. The process for preparing a multi-principal-element alloy with high damping performance and high strength as claimed in claim 2, wherein the multi-principal-element alloy plate prepared finally has high elongation which is more than 20%.
10. The process of claim 2, wherein the final multi-principal element alloy plate has high corrosion resistance and a self-corrosion current density of about 3.4 x 10 - 7 mA·cm -2 。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210850618.1A CN115074598A (en) | 2022-07-19 | 2022-07-19 | Multi-principal-element alloy with high damping performance and high strength and preparation process thereof |
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| CN202210850618.1A CN115074598A (en) | 2022-07-19 | 2022-07-19 | Multi-principal-element alloy with high damping performance and high strength and preparation process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522111A (en) * | 2022-10-14 | 2022-12-27 | 长沙理工大学 | High-toughness corrosion-resistant high-damping multi-principal-element alloy and preparation method thereof |
| CN115522112A (en) * | 2022-10-14 | 2022-12-27 | 长沙理工大学 | Light high-strength and high-toughness multi-principal-element damping alloy material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120205A (en) * | 2005-10-31 | 2007-05-17 | Bridgestone Corp | Seismic isolator |
| CN111647789A (en) * | 2020-06-30 | 2020-09-11 | 华中科技大学 | Alloying-method-based refined chromium-iron-cobalt-nickel-based high-entropy alloy crystal grain and preparation method thereof |
| CN113430445A (en) * | 2021-06-21 | 2021-09-24 | 哈尔滨工程大学 | FeCrNiAlMoNb high-entropy alloy and preparation method thereof |
-
2022
- 2022-07-19 CN CN202210850618.1A patent/CN115074598A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007120205A (en) * | 2005-10-31 | 2007-05-17 | Bridgestone Corp | Seismic isolator |
| CN111647789A (en) * | 2020-06-30 | 2020-09-11 | 华中科技大学 | Alloying-method-based refined chromium-iron-cobalt-nickel-based high-entropy alloy crystal grain and preparation method thereof |
| CN113430445A (en) * | 2021-06-21 | 2021-09-24 | 哈尔滨工程大学 | FeCrNiAlMoNb high-entropy alloy and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522111A (en) * | 2022-10-14 | 2022-12-27 | 长沙理工大学 | High-toughness corrosion-resistant high-damping multi-principal-element alloy and preparation method thereof |
| CN115522112A (en) * | 2022-10-14 | 2022-12-27 | 长沙理工大学 | Light high-strength and high-toughness multi-principal-element damping alloy material and preparation method thereof |
| CN115522111B (en) * | 2022-10-14 | 2023-10-27 | 长沙理工大学 | Corrosion-resistant high-strength and high-toughness high-damping multi-principal-element alloy and preparation method thereof |
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