CN115522111B - Corrosion-resistant high-strength and high-toughness high-damping multi-principal-element alloy and preparation method thereof - Google Patents
Corrosion-resistant high-strength and high-toughness high-damping multi-principal-element alloy and preparation method thereof Download PDFInfo
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- 238000013016 damping Methods 0.000 title claims abstract description 54
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 claims abstract description 6
- 238000000265 homogenisation Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 229910052759 nickel Inorganic materials 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000010791 quenching Methods 0.000 claims description 15
- 230000000171 quenching effect Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 244000137852 Petrea volubilis Species 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims 2
- 238000000137 annealing Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000004506 ultrasonic cleaning Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 238000005728 strengthening Methods 0.000 abstract description 4
- 239000006104 solid solution Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 229910007570 Zn-Al Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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Abstract
The invention discloses a corrosion-resistant high-strength and high-toughness high-damping multi-principal-element alloy and a preparation method thereof, wherein the corrosion-resistant high-strength and high-toughness high-damping multi-principal-element alloy comprises the following raw materials in percentage by mass: mo: 5-15%, co: 27-32%, ni: 27-32%; the balance being iron. The preparation method of the multi-principal element alloy comprises the following steps: pretreatment, ingot smelting, alloy homogenization, machining and heat treatment. The invention fully exerts the cocktail effect of the multi-principal element alloy based on the design concept of the multi-principal element alloy, and introduces solid solution strengthening and fine grain strengthening into the alloy, so that the alloy has good strength and damping performance. The tensile strength of the multi-principal element alloy exceeds 634MPa at room temperature, the fracture strain is more than 28%, and the damping internal consumption value Q ‑1 And the alloy is more than 0.029, and meanwhile, the addition of principal elements of Co, ni and Mo ensures that the alloy has excellent corrosion resistance. The multi-principal element alloy has excellent performance and simple preparation, and can be suitable for damping structural materials serving in corrosive environments.
Description
Technical Field
The invention relates to a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy and a preparation method thereof, belonging to the field of metal functional materials.
Background
A great deal of corrosion-resistant structural materials are required to be used in numerous industrial fields such as petroleum, chemical industry, national defense and the like, and meanwhile, the structural materials are required to have good damping performance. The engineering equipment structural materials are required to have excellent corrosion resistance, good mechanical properties and certain damping properties. At present, corrosion-resistant structural materials are mainly different types of stainless steel, such as common 304 and 316 stainless steel and the like, can resist the problems of pitting corrosion, erosion, stress corrosion cracking and the like under weaker corrosion conditions, and also has better plasticity (stretching elongation exceeds 30%). However, these conventional stainless steels are not high in strength, generally have a yield strength of 200MPa or less, generally have a tensile strength of 550MPa or less, are susceptible to corrosion in a relatively strong corrosive environment, have a risk of stress cracking under relatively high loads, and have limited damping properties.
The multi-principal element alloy breaks the limitation that the traditional metal takes a single element as a principal element, namely the alloy takes a plurality of elements as principal elements instead of taking the single element as the principal element. Because the multi-principal element alloy has higher mixing entropy, a single-phase solid solution structure is easy to form, rather than intermetallic compounds or other complex ordered phases. The multi-principal element alloy has multiple kinds of elements and higher concentration, so that the alloy has good comprehensive properties such as high strength, high toughness, excellent corrosion resistance and the like.
At present, the metal damping materials with more application are Mn-Cu series, cu-Zn-Al series and Fe-Cr-Mo series alloys, which have the defects of excellent damping performance, low strength and low corrosion resistance, and limit the wide application in the industrial field. Therefore, the search for a metal structural material with higher strength and plasticity and better corrosion resistance and damping performance is one of the key technologies to be solved in the field of damping structural materials currently in service in corrosive environments.
Disclosure of Invention
The invention aims to provide a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy and a preparation method thereof. Co, ni and Mo elements are added into the alloy through the optimized design of multiple principal element alloy components and a specific preparation process, so that the corrosion resistance of the alloy is improved, and meanwhile, the toughness and damping performance of the alloy are improved through solid solution strengthening and fine grain strengthening. Can be applied to the damping structure material field in the corrosive environment of petroleum, chemical industry and the like.
Preferably, the invention provides a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy and a preparation method thereof, wherein the alloy comprises the following raw material components in percentage by mass: mo: 5-15%, co: 27-32%, ni: 27-32%; the balance being iron.
The invention provides a preparation method of a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy, which comprises the following steps:
(1) Pretreatment: the Fe, co, ni, mo simple substance with the purity of more than 99.95 percent (mass fraction wt.%) is selected as the raw material. Polishing the surfaces of the raw materials by sand paper (400 #, 800#, 1000#, 1200#, 1500#, 2000 #) of different types to remove surface oxide skin and impurities, ultrasonically cleaning the raw materials in absolute ethyl alcohol for not less than 20min, drying the raw materials in a drying oven for 1h, and proportioning the raw materials according to the proportion;
(2) Smelting cast ingot: placing the prepared raw materials into a crucible of a smelting furnace according to the placing requirement, wherein the simple substances of Fe, co and Ni serving as raw materials are placed on one side of a No. 1 crucible, the simple substance of Mo is placed on the other side of the No. 1 crucible, and a titanium block is placed in a No. 2 crucible; vacuumizing to 1.5X10 - 3 Under Pa, charging high-purity protective gas to make the pressure in the furnace be 0.4X10 5 ～0.5×10 5 Pa; firstly smelting titanium blocks to remove residual oxygen in a furnace, then moving an electrode to Fe, co and Ni simple substances in a No. 1 crucible, controlling current to be 350-400A for smelting, and integrating the Fe, co and Ni into a whole to form molten metal, and controlling current to be 360-420A for smelting the Mo simple substances after the molten metal wraps the Mo simple substances. The alloy is smelted and turned over for 5-7 times to ensure the uniformity of components; in order to prevent the defects such as cracks and the like of the alloy, when the alloy is smelted for the last time, controlling the current to be 180-200A aiming at the center of the ingot to be smelted for not less than 1min, and cooling the alloy along with a furnace after arc breaking to obtain a cake-shaped ingot;
(3) Homogenizing the alloy: homogenizing the obtained cast ingot for 2-24 hours at 1100-1300 ℃ under high-purity protective gas, wherein the atmosphere is argon, and then carrying out water quenching, wherein the homogenization temperature is preferably 1200 ℃ and the time is 2-4 hours;
(4) Machining: carrying out unidirectional multi-pass room temperature rolling on the cast ingot after water quenching, wherein the single-pass rolling amount is controlled to be 5-10 mm/time, and the rolling deformation amount is controlled to be 50-95%, so as to obtain an alloy plate;
(5) And (3) heat treatment: and (3) carrying out heat treatment on the obtained alloy plate for 0.5-12 h at 600-1000 ℃ under the condition of high-purity protective gas, wherein the atmosphere is argon, and then carrying out water quenching. Preferably, the heat treatment temperature is 750-850 ℃ and the time is 2-4 h. The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy plate is obtained.
The invention has the beneficial effects that:
(1) The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy has accurate components and uniform microstructure, and is of a single-phase FCC structure;
(2) The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy has the tensile strength exceeding 634MPa and the fracture strain being more than 28 percent, and has excellent fracture strength and plastic deformation capacity;
(3) The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy of the invention has internal consumption value Q at room temperature -1 More than 0.029, has good damping performance;
(4) The corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy provided by the invention has Co, ni and Mo corrosion-resistant principal elements and has excellent corrosion resistance.
(5) The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy is simple in preparation process, easy to realize and suitable for popularization and application.
Drawings
FIG. 1 is an XRD pattern of an example corrosion-resistant high strength and toughness high damping multi-principal element alloy;
FIG. 2 is a microstructure map of an example corrosion-resistant high strength-toughness high damping multi-principal element alloy;
FIG. 3 is a drawing curve of an example corrosion-resistant high strength-toughness high damping multi-principal element alloy;
Detailed Description
The present invention is further illustrated by, but not limited to, the following examples.
Example 1:
the embodiment is a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy, which comprises the following raw materials in percentage by mass: fe:30.51%, co:32.19%, ni:32.06%, mo:5.24%, and the purity of the raw materials is more than 99.95% (weight percent).
The preparation method for the corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy comprises the following steps of:
(1) Pretreatment: grinding the surfaces of the raw materials by sand paper (400 #, 800#, 1000#, 1200#, 1500#, 2000 #) of different types to remove surface oxide skin and impurities, ultrasonically cleaning the raw materials in absolute ethyl alcohol for 20min, drying the raw materials in a drying oven for 1h, and proportioning the raw materials according to the proportion;
(2) Smelting cast ingot: placing the prepared raw materials into a crucible of a smelting furnace according to the placing requirement, wherein the simple substances of Fe, co and Ni serving as raw materials are placed on one side of a No. 1 crucible, the simple substance of Mo is placed on the other side of the No. 1 crucible, and a titanium block is placed in a No. 2 crucible; vacuumizing to 1.5X10 - 3 Under Pa, charging high-purity protective gas to make the pressure in the furnace be 0.4X10 5 ～0.5×10 5 Pa; firstly smelting titanium blocks to remove residual oxygen in a furnace, then moving an electrode to a No. 1 crucible to align with raw materials of Fe, co and Ni, controlling current to be 350-400A for smelting, and integrating the Fe, co and Ni into a molten metal, and controlling current to be 360-420A for smelting the Mo simple substance after the Mo simple substance is wrapped by the molten metal. The alloy is smelted and turned over for 5-7 times to ensure the uniformity of components; in order to prevent the defects such as cracks and the like of the alloy, when the alloy is smelted for the last time, controlling the current to be 180-200A aiming at the center of the ingot to be smelted for not less than 1min, and cooling the alloy along with a furnace after arc breaking to obtain a cake-shaped ingot;
(3) Homogenizing the alloy: homogenizing the obtained cast ingot for 3 hours at 1200 ℃ under high-purity protective gas, and then quenching with water, wherein the protective gas is argon;
(4) Machining: carrying out unidirectional multi-pass room-temperature rolling on the cast ingot after water quenching, wherein the single-pass rolling amount is controlled to be 7 mm/time, and the rolling deformation amount is controlled to be 90%, so as to obtain an alloy plate;
(5) And (3) heat treatment: and carrying out heat treatment on the obtained alloy plate for 3 hours at 800 ℃ under high-purity shielding gas, and then carrying out water quenching, wherein the shielding gas is argon. The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy plate is obtained.
Example 2:
the embodiment is a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy, which comprises the following raw materials in percentage by mass: fe:28.99%, co:30.59%, ni:30.46%, mo:9.96% and the purity of these raw materials is greater than 99.95%.
The preparation method for the corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy comprises the following steps of:
(1) Pretreatment: grinding the surfaces of the raw materials by sand paper (400 #, 800#, 1000#, 1200#, 1500#, 2000 #) of different types to remove surface oxide skin and impurities, ultrasonically cleaning the raw materials in absolute ethyl alcohol for 20min, drying the raw materials in a drying oven for 1h, and proportioning the raw materials according to the proportion;
(2) Smelting cast ingot: placing the prepared raw materials into a crucible of a smelting furnace according to the placing requirement, wherein the simple substances of Fe, co and Ni serving as raw materials are placed on one side of a No. 1 crucible, the simple substance of Mo is placed on the other side of the No. 1 crucible, and a titanium block is placed in a No. 2 crucible; vacuumizing to 1.5X10 - 3 Under Pa, charging high-purity protective gas to make the pressure in the furnace be 0.4X10 5 ～0.5×10 5 Pa; firstly smelting titanium blocks to remove residual oxygen in a furnace, then moving an electrode to a No. 1 crucible to align with raw materials of Fe, co and Ni, controlling current to be 350-400A for smelting, and integrating the Fe, co and Ni into a molten metal, and controlling current to be 360-420A for smelting the Mo simple substance after the Mo simple substance is wrapped by the molten metal. The alloy is smelted and turned over for 5-7 times to ensure the uniformity of components; in order to prevent the defects such as cracks and the like of the alloy, when the alloy is smelted for the last time, controlling the current to be 180-200A aiming at the center of the ingot to be smelted for not less than 1min, and cooling the alloy along with a furnace after arc breaking to obtain a cake-shaped ingot;
(3) Homogenizing the alloy: homogenizing the obtained cast ingot for 3 hours at 1200 ℃ under high-purity protective gas, and then quenching with water, wherein the protective gas is argon;
(4) Machining: carrying out unidirectional multi-pass room temperature rolling on the cast ingot after water quenching, wherein the single-pass rolling amount is controlled to be 5-10 mm/time, and the rolling deformation amount is controlled to be 90%, so as to obtain an alloy plate;
(5) And (3) heat treatment: and carrying out heat treatment on the obtained alloy plate for 3 hours at 800 ℃ under high-purity shielding gas, and then carrying out water quenching, wherein the shielding gas is argon. The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy plate is obtained.
Example 3:
the embodiment is a corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy, which comprises the following raw materials in percentage by mass: fe:27.61%, co:29.14%, ni:29.02%, mo:14.23% and the purity of the raw materials is more than 99.95%.
The preparation method for the corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy comprises the following steps of:
(1) Pretreatment: grinding the surfaces of the raw materials by sand paper (400 #, 800#, 1000#, 1200#, 1500#, 2000 #) of different types to remove surface oxide skin and impurities, ultrasonically cleaning the raw materials in absolute ethyl alcohol for 20min, drying the raw materials in a drying oven for 1h, and proportioning the raw materials according to the proportion;
(2) Smelting cast ingot: placing the prepared raw materials into a crucible of a smelting furnace according to the placing requirement, wherein the simple substances of Fe, co and Ni serving as raw materials are placed on one side of a No. 1 crucible, the simple substance of Mo is placed on the other side of the No. 1 crucible, and a titanium block is placed in a No. 2 crucible; vacuumizing to 1.5X10 - 3 Under Pa, charging high-purity protective gas to make the pressure in the furnace be 0.4X10 5 ～0.5×10 5 Pa; firstly smelting titanium blocks to remove residual oxygen in a furnace, then moving an electrode to a No. 1 crucible to align with raw materials of Fe, co and Ni, controlling current to be 350-400A for smelting, and integrating the Fe, co and Ni into a molten metal, and controlling current to be 360-420A for smelting the Mo simple substance after the Mo simple substance is wrapped by the molten metal. The alloy is smelted and turned over for 5-7 times to ensure the uniformity of components; in order to prevent the defects such as cracks and the like of the alloy, when the alloy is smelted for the last time, controlling the current to be 180-200A aiming at the center of the ingot to be smelted for not less than 1min, and cooling the alloy along with a furnace after arc breaking to obtain a cake-shaped ingot;
(3) Homogenizing the alloy: homogenizing the obtained cast ingot for 3 hours at 1200 ℃ under high-purity protective gas, and then quenching with water, wherein the protective gas is argon;
(4) Machining: carrying out unidirectional multi-pass room temperature rolling on the cast ingot after water quenching, wherein the single-pass rolling amount is controlled to be 5-10 mm/time, and the rolling deformation amount is controlled to be 90%, so as to obtain an alloy plate;
(5) And (3) heat treatment: and carrying out heat treatment on the obtained alloy plate for 3 hours at 800 ℃ under high-purity shielding gas, and then carrying out water quenching, wherein the shielding gas is argon. The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy plate is obtained.
Comparative example 1:
the mass percentages of the raw materials are as follows: fe:32.20%, co:33.97%, ni:33.83% and the purity of the raw materials is more than 99.95%.
The preparation process was carried out under the same conditions as in the examples.
Comparative example 2:
the mass percentages of the raw materials are as follows: fe:30.51%, co:32.19%, ni:32.06%, mo:5.24% and the purity of the raw materials is more than 99.95%.
In the preparation process of comparative example 2, the final heat treatment temperature was 500℃for 3 hours, and the other preparation process steps were the same as those of example.
Experimental data
Metallographic structure analysis, mechanical properties and damping performance tests were carried out on the alloy plates prepared in examples 1 to 3 and comparative examples 1 to 2, respectively. Fig. 1 is an XRD pattern of the alloy materials of examples 1 to 3, fig. 2 is a microstructure micro pattern of the alloy materials of examples 1 to 2, and the alloy materials of examples 1 to 3 are easy to obtain and have uniform microstructure and unidirectional FCC phase structure. Table 1 shows the mechanical properties and damping properties of the above example alloys and comparative example alloys.
TABLE 1
As can be seen from Table 1, the corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy prepared by the method has tensile strength of over 634MPa and elongation of over 28 percent. Whereas comparative example 1 has a tensile strength of only 523MPa, the tensile strength is significantly lower compared to the present invention; comparative example 2 has an elongation of only 17.6% and has poor toughness.
In summary, the mass percentages are as follows: mo: 5-15%, co: 27-32%, ni: 27-32%; the balance being iron. The corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy prepared by adopting the method of controlling current smelting at two sides in the same crucible and finally combining smelting has the advantages of high strength, high toughness, excellent corrosion resistance and good damping performance. The preparation process of the multi-principal element alloy is simple, easy to realize and suitable for damping structural materials in corrosive environments.
Claims (6)
1. The preparation method of the corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy comprises the following raw material components in percentage by mass: mo: 5-15%, co: 27-32%, ni: 27-32%; the balance of iron; the preparation method of the corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy is characterized by comprising the following steps of:
(1) Pretreatment: fe, co, ni, mo simple substances with purity more than 99.95% (mass fraction wt.%) are selected as raw materials, the surfaces of the raw materials are polished by sand paper to remove surface oxide skin and impurities, the raw materials are ultrasonically cleaned in absolute ethyl alcohol, dried in a drying oven and proportioned according to the raw material components;
(2) Smelting cast ingot: placing the prepared raw materials into a crucible of a smelting furnace according to the placing requirement, vacuumizing, and filling protective gas into the furnace; firstly smelting titanium blocks, respectively smelting Fe, co and Ni simple substances, and finally smelting Mo simple substances with higher melting points; the alloy is smelted and turned over for 5-7 times to ensure the uniformity of components; gradually reducing the smelting current after smelting is finished to enable the alloy to be slowly cooled, and obtaining an alloy cast ingot;
(3) Homogenizing the alloy: the alloy ingot is kept at a certain temperature for a period of time under high-purity protective gas, and then water quenching treatment is carried out;
(4) Machining: rolling the ingot after water quenching at room temperature to obtain an alloy plate;
(5) And (3) heat treatment: performing medium-temperature annealing treatment on the alloy plate under protective gas, and performing water quenching treatment to obtain the corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy;
in the smelting process of the step (2), the electrode is moved to a No. 1 crucible to be aligned with raw materials of Fe, co and Ni, the current is controlled to be 350-400A for smelting, the Fe, co and Ni are integrated into a metal liquid, the simple substance of Mo is wrapped by the metal liquid, the current is controlled to be 360-420A for smelting pure Mo, and the current is controlled to be 180-200A to be aligned with the center of an ingot for smelting for not less than 1min in the last smelting pass;
the homogenization temperature of the alloy is controlled between 1100 ℃ and 1300 ℃ for 2 to 24 hours, and the atmosphere is argon;
the mechanical processing is unidirectional multi-pass rolling, the single-pass rolling quantity is controlled to be 5-10 mm/time, and the rolling deformation quantity is controlled to be 50-95%;
the temperature of the heat treatment is controlled between 600 ℃ and 1000 ℃ for 0.5 to 12 hours, and the atmosphere is argon.
2. The method for preparing the corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy according to claim 1, wherein the ultrasonic cleaning time in the step (1) is not less than 20min, and the drying time is not less than 1h.
3. The method for preparing the corrosion-resistant high-strength high-toughness high-damping multi-element alloy according to claim 1, wherein the placing requirement of ingot casting in the step (2) is that an element Mo is placed in one side of a No. 1 crucible, an element Fe, co and Ni is placed in the other side of the No. 1 crucible, and a titanium block is placed in a No. 2 crucible.
4. The method for preparing the corrosion-resistant high-strength high-toughness high-damping multi-principal element alloy according to claim 1, wherein the homogenization temperature of the alloy is 1200 ℃ and the time is 2-4 h.
5. The method for preparing the corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy according to claim 2, wherein the heat treatment temperature is 750-850 ℃ and the time is 2-4 h.
6. The corrosion-resistant high-strength high-toughness high-damping multi-principal-element alloy is characterized by being prepared by the preparation method of the corrosion-resistant high-strength high-damping multi-principal-element alloy as claimed in any one of claims 1 to 5.
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| CN202211260524.5A CN115522111B (en) | 2022-10-14 | 2022-10-14 | Corrosion-resistant high-strength and high-toughness high-damping multi-principal-element alloy and preparation method thereof |
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| US3331715A (en) * | 1959-10-16 | 1967-07-18 | Westinghouse Electric Corp | Damping alloys and members prepared therefrom |
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| CN113564441A (en) * | 2021-07-19 | 2021-10-29 | 哈尔滨工程大学 | Fe-Ni-Co-Al-W alloy with super elasticity and preparation method thereof |
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| CN115074598A (en) * | 2022-07-19 | 2022-09-20 | 北京理工大学 | Multi-principal-element alloy with high damping performance and high strength and preparation process thereof |
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| GB1549280A (en) * | 1975-04-04 | 1979-08-01 | Zaidan Hojin Denki Jiki Zairyo | High damping capacity alloy |
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