CN113549803A - Low-neutron-absorption ZrTiNbAlV refractory casting high-entropy alloy and preparation method thereof - Google Patents
Low-neutron-absorption ZrTiNbAlV refractory casting high-entropy alloy and preparation method thereof Download PDFInfo
- Publication number
- CN113549803A CN113549803A CN202110735016.7A CN202110735016A CN113549803A CN 113549803 A CN113549803 A CN 113549803A CN 202110735016 A CN202110735016 A CN 202110735016A CN 113549803 A CN113549803 A CN 113549803A
- Authority
- CN
- China
- Prior art keywords
- alloy
- target
- entropy alloy
- zrtinbalv
- neutron absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 80
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 79
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 26
- 238000005266 casting Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 239000010955 niobium Substances 0.000 description 10
- 239000010936 titanium Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000012071 phase Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 241000271567 Struthioniformes Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910000756 V alloy Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005502 phase rule Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C16/00—Alloys based on zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a low neutron absorption ZrTiNbAlV refractory casting high-entropy alloy and a preparation method thereof, wherein selected elements of the high-entropy alloy have low neutron absorption cross sections: zr-0.185 target, Ti-6.09 target, Nb-1.15 target, Al-0.231 target, V-5.08 target; the expression of the alloy is ZraTibNbcAldVeIn the alloy expression, a, b, c, d and e respectively represent the atomic percentage of each element, and the following conditions are satisfied: 20-40 at.%, 20-35 at.%, 10-30 at.%, 2-25 at.%, and 100 as a + b + c + d + e. The preparation method is simple, the alloy can be subjected to casting operation after being smelted, and the heat treatment after casting can be used or not. The process has strong controllability and is easy to realize industrial production.
Description
Technical Field
The invention relates to a refractory casting high-entropy alloy with a low neutron absorption cross section and excellent mechanical properties and a preparation method thereof, belongs to the technical field of metal materials, and is mainly applied to nuclear reaction components.
Background
The traditional alloy generally takes one or two elements as main components, and other trace elements are added to obtain the requirements of certain specific properties, but according to Gibbs Phase Rule, the excessive addition of the alloy element types can generate intermetallic compounds in the alloy, once brittle compounds are generated, the alloy properties can be seriously affected, and the alloy properties are reduced. Therefore, in the conventional design concept, when certain excellent properties can be achieved, the kinds of alloying elements should be reduced as much as possible.
For high entropy alloys, the concept of composition design is quite different from that of traditional alloy design. The high-entropy alloy contains at least 5 elements, and the content of each element is 5-35% (at.%), namely, the main and secondary elements, solvent and solute are not among the elements. Although the type and content of elements do not follow Gibbs phase fraction when the alloy is designed, the resulting high entropy alloy does not have an excessive number of phases and harmful intermetallic compounds. And due to the high entropy effect, the lattice distortion effect, the delayed diffusion effect and the cocktail effect of the high-entropy alloy, the alloy shows excellent mechanical property, good wear resistance, high-temperature oxidation resistance, high-temperature creep resistance, corrosion resistance, good magnetoelectric property, high resistivity and the like. By combining the above, the high-entropy alloy has better application prospect, and the flexible design idea greatly widens the field of engineering materials.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a refractory high-entropy alloy with a low neutron absorption cross section and excellent mechanical properties, which has great application potential in the field of metal materials and a preparation method of the refractory high-entropy alloy, aiming at solving the problems that the existing high-entropy alloy cannot have a low neutron absorption cross section and excellent mechanical properties and simultaneously solves the problem that the alloy cannot be directly cast or has poor casting performance and the structure of the alloy must be strengthened by deformation control.
The technical scheme is as follows: the invention relates to a refractory casting high-entropy alloy with a low neutron absorption cross section and excellent mechanical properties and a preparation method thereof, wherein the expression of the refractory high-entropy alloy is ZraTibNbcAldVeIn the alloy expression, a, b, c, d and e respectively represent the atomic percentage of each element, and the following conditions are satisfied: 30-40 at.%, 20-35 at.%, 10-30 at.%, 2-25 at.%, and 100 as a + b + c + d + e.
The refractory high-entropy alloy comprises the following components:
the basis of component design is as follows: saad Sheikh proposes a new method to optimize the intrinsic plasticity of RHEAs by controlling the Valence Electron Concentration (VEC), BCC refractory high entropy alloys consisting of metals of transition groups iv, v and vi are plastic when VEC is less than 4.5 and brittle when VEC is greater than 4.6. In order to obtain refractory high-entropy alloy with low neutron absorption cross section and excellent mechanical property, Zr, Ti, Nb, Al and V are selected as matrix phase elements, wherein the neutron absorption cross section among the Zr, Nb and Al is low, the strength and plasticity of the alloy are improved by adding the Ti element, and the stacking fault energy is reduced by adding the V element, so that the plasticity is improved. Because the content is close, the alloy shows higher mixing entropy, and the effect of mixing enthalpy among elements is inhibited; the valence electron numbers of the elements are small, the VEC can be less than 4.5 by adjusting the distribution ratio, and the obtained high-entropy alloy has certain plasticity.
The invention relates to a refractory casting high-entropy alloy with a low neutron absorption cross section and excellent mechanical properties and a preparation method thereof, which comprises the following steps:
the method comprises the following steps: the raw materials are prepared according to the components and the mol percentage of the ZrTiNbAlV high-entropy alloy, and the components and the mol percentage thereof are as follows: 30-40 at.% Zr, 20-35 at.% Ti, 15-30 at.% Nb, 2-25 at.% Al and 2-25 at.% V.
Step two: the alloy raw materials are sequentially subjected to mixing melting, refining and casting molding under the protection of vacuum or inert gas.
Step three: the mixed melting and refining mode is thatVacuum degree lower than 10-1Pa or smelting for 2-20 minutes under the protection of inert gas, and utilizing electromagnetic stirring or mechanical stirring in the smelting process.
Step four: the melt casting temperature is above 100 ℃ of the alloy liquid phase line.
Compared with the prior art, the invention has the advantages that: (1) the invention provides a refractory high-entropy alloy with a low neutron absorption cross section and excellent mechanical properties. The neutron absorption cross section of the refractory high-entropy alloy is 2.0-3.0 targets, the yield strength is 850MPa, the tensile strength is 900MPa, and the elongation is 16% in an as-cast state. (2) The preparation method of the refractory casting high-entropy alloy is simple, and the alloy can be subjected to casting operation after being smelted, and can be subjected to heat treatment after casting or not. The process has strong controllability and is easy to realize industrial production.
Drawings
FIG. 1 is an example XRD plot;
FIG. 2 is a tensile engineering stress-strain curve of an example.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, the numerical values set forth in these examples do not limit the scope of the invention. Techniques, methods known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The present invention is described in further detail below with reference to the attached drawings.
Selecting metal zirconium, metal titanium, metal niobium, metal aluminum and metal vanadium, wherein the high-entropy alloy comprises the following components (atom percentage): 35.0 Zr, 30.0 Ti, 20.0 Nb, 10.0 Al, 5.0V.
Smelting into an ingot by vacuum arc induction smelting; smelting is carried out in the protection of argon, and a magnetic stirring technology is utilized to uniformly mix the metal solution in the smelting process; and then the cast ingot is suction cast into a rod shape under the protection of argon.
The neutron absorption cross section of the example is 2.0308 target, the average hardness in the as-cast condition is 360HV, the yield strength is 850MPa, the tensile strength is 900MPa, and the elongation is 16%.
FIG. 1 shows Zr35Ti30Nb20Al10V5An XRD pattern of the high-entropy alloy in an as-cast state shows that the alloy is in a BCC structure; FIG. 2 shows example Zr35Ti30Nb20Al10V5The high-entropy alloy is stretched under an as-cast condition to form a stress-strain curve.
The elements selected by the design of the invention all have lower neutron absorption cross sections, and because the valence electron concentration of each element is lower, according to an idea proposed by Saad Sheikh, when VEC is less than 4.5, the refractory high-entropy alloy composed of metals in IV, V and VI families has plasticity, and when VEC is more than 4.6, the refractory high-entropy alloy has brittleness, and the VEC is less than 4.5 by adjusting the element proportion, so that the refractory high-entropy alloy with plasticity is obtained.
The refractory high-entropy alloy has yield strength of 850MPa, tensile strength of 900MPa, elongation of 16% and excellent comprehensive mechanical properties in an as-cast state. The materials used for the nuclear reactor primary loop comprise nickel-based high-temperature alloy, stainless steel, vanadium alloy and the like. The nickel-based high-temperature alloy shows excellent radiation resistance and corrosion resistance, but mechanical properties at room temperature need to be improved, taking classical GH169 as an example, the yield strength of the nickel-based high-temperature alloy at room temperature is lower, the yield strength is-550 MPa, the tensile strength is-965 MPa, the elongation is-30%, but the neutron absorption cross section is-3.541 target, the neutron absorption interface of the nickel-based high-temperature alloy is 2.0-3.0 target and is lower than GH169 nickel-based alloy-75%, and the nuclear reaction efficiency can be improved in application. For 316 and 316L stainless steel which is widely applied, the mechanical property is lower than that of the invention, the yield strength is 310MPa at room temperature, the tensile strength is 620MPa, the elongation is 30 percent, the neutron absorption cross section is 3.0 target which is higher than 43 percent of the high-entropy alloy of the invention, and the mechanical property at room temperature is far lower than that of the high-entropy alloy of the invention. Meanwhile, the above alloys are all in a deformed state, and it is difficult to directly prepare a member by casting.
A low neutron absorption ZrTiNbAlV refractory casting high-entropy alloy and a preparation method thereof, wherein selected elements of the high-entropy alloy have low neutron absorption cross sections: zr-0.185 target, Ti-6.09 target, Nb-1.15 target, Al-0.231 target, V-5.08 target. The expression of the alloy is ZraTibNbcAldVeIn the alloy expression, a, b, c, d and e respectively represent the atomic percentage of each element, and the following conditions are satisfied: 20-40 at.%, 20-35 at.%, 10-30 at.%, 2-25 at.%, and 100 as a + b + c + d + e. The method comprises the following steps: the alloy raw materials are sequentially subjected to mixing melting, refining and casting molding under the protection of vacuum or inert gas. Wherein the mixing, melting and refining mode is that the vacuum degree is lower than 10-1Pa or smelting for 2-20 minutes under the protection of inert gas, and utilizing electromagnetic stirring or mechanical stirring in the smelting process. Wherein the melt casting temperature is above 100 ℃ of the alloy liquid phase line.
The invention belongs to the technical field of alloy materials and preparation thereof, and particularly relates to a low neutron absorption ZrTiNbAlV refractory cast high-entropy alloy and a preparation method thereof, which are characterized in that selected elements have low neutron absorption cross sections: zr-0.185 target, Ti-6.09 target, Nb-1.15 target, Al-0.231 target, V-5.08 target. The expression of the high-entropy alloy is ZraTibNbcAldVeIn the alloy expression, a, b, c, d and e respectively represent the atomic percentage of each element, and the following conditions are satisfied: 20-40 at.%, 20-35 at.%, 10-30 at.%, 2-25 at.%, and 2-25 at.%, a + b + c + d + e 100. The preparation method of the refractory high-entropy alloy comprises the following steps: firstly, preparing raw materials according to components and mole percentage; smelting in a vacuum induction or vacuum arc smelting furnace and directly casting into a casting, and casting under the protection of inert gas. The Valence Electron Concentration (VEC) is less than 4.5 by optimally designing the element proportion. The alloy has yield strength of 850MPa, tensile strength of 900MPa, elongation of 16% and neutron absorption cross section of 2.0-3.0 target in an as-cast state. The alloy has considerable strength and plasticity, is a castable alloy, can be directly cast into a casting, and has wide application prospect in the key high-tech fields of nuclear power and the like.
Claims (2)
1. A low neutron absorption ZrTiNbAlV refractory cast high entropy alloy, characterized in that the elements selected from the high entropy alloy have a low neutron absorption cross section: zr-0.185 target, Ti-6.09 target, Nb-1.15 target, Al-0.231 target, V-5.08 target; the expression of the alloy is ZraTibNbcAldVeIn the alloy expression, a, b, c, d and e respectively represent the atomic percentage of each element, and the following conditions are satisfied: 20-40 at.%, 20-35 at.%, 10-30 at.%, 2-25 at.%, and 100 as a + b + c + d + e.
2. The preparation method of the low neutron absorption ZrTiNbAlV refractory cast high-entropy alloy according to claim 1, characterized by comprising the following steps:
the method comprises the following steps: the raw materials are prepared according to the components and the mol percentage of the ZrTiNbAlV high-entropy alloy, and the components and the mol percentage thereof are as follows: 30-40 at.% Zr, 20-35 at.% Ti, 15-30 at.% Nb, 2-25 at.% Al, and 2-25 at.% V;
step two: sequentially carrying out mixing melting, refining and casting molding on alloy raw materials under the protection of vacuum or inert gas;
step three: the mixed melting and refining mode is that the vacuum degree is lower than 10-1Smelting for 2-20 minutes under the protection of Pa or inert gas, and utilizing electromagnetic stirring in the smelting processStirring or mechanically stirring;
step four: the melt casting temperature is above 100 ℃ of the alloy liquid phase line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110735016.7A CN113549803A (en) | 2021-06-30 | 2021-06-30 | Low-neutron-absorption ZrTiNbAlV refractory casting high-entropy alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110735016.7A CN113549803A (en) | 2021-06-30 | 2021-06-30 | Low-neutron-absorption ZrTiNbAlV refractory casting high-entropy alloy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113549803A true CN113549803A (en) | 2021-10-26 |
Family
ID=78131099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110735016.7A Pending CN113549803A (en) | 2021-06-30 | 2021-06-30 | Low-neutron-absorption ZrTiNbAlV refractory casting high-entropy alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113549803A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115595488A (en) * | 2022-10-20 | 2023-01-13 | 上海大学（Cn） | Low-density medium-entropy alloy with low neutron absorption and preparation method and application thereof |
| CZ309673B6 (en) * | 2022-10-05 | 2023-07-05 | Univerzita Karlova | High-entropy radiation-resistant alloy and processing it |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160130660A (en) * | 2015-05-04 | 2016-11-14 | 한국과학기술연구원 | Bcc alloys with strong resistance against high temperature neutron irradiation damage |
| CN107419154A (en) * | 2017-07-24 | 2017-12-01 | 北京科技大学 | One kind has hyperelastic TiZrHfNbAl high-entropy alloys and preparation method thereof |
| CN108220742A (en) * | 2018-03-14 | 2018-06-29 | 北京理工大学 | A kind of microalloying Ti-Zr-Hf-V-Nb-Ta infusibility high-entropy alloys and preparation method thereof |
| CN110714154A (en) * | 2019-10-15 | 2020-01-21 | 哈尔滨工程大学 | ZrTiHfNbTa high-entropy alloy and preparation method thereof |
| CN112708817A (en) * | 2020-12-21 | 2021-04-27 | 重庆大学 | High-plasticity low-neutron absorption cross-section refractory high-entropy alloy material and preparation method thereof |
-
2021
- 2021-06-30 CN CN202110735016.7A patent/CN113549803A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160130660A (en) * | 2015-05-04 | 2016-11-14 | 한국과학기술연구원 | Bcc alloys with strong resistance against high temperature neutron irradiation damage |
| CN107419154A (en) * | 2017-07-24 | 2017-12-01 | 北京科技大学 | One kind has hyperelastic TiZrHfNbAl high-entropy alloys and preparation method thereof |
| CN108220742A (en) * | 2018-03-14 | 2018-06-29 | 北京理工大学 | A kind of microalloying Ti-Zr-Hf-V-Nb-Ta infusibility high-entropy alloys and preparation method thereof |
| CN110714154A (en) * | 2019-10-15 | 2020-01-21 | 哈尔滨工程大学 | ZrTiHfNbTa high-entropy alloy and preparation method thereof |
| CN112708817A (en) * | 2020-12-21 | 2021-04-27 | 重庆大学 | High-plasticity low-neutron absorption cross-section refractory high-entropy alloy material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ309673B6 (en) * | 2022-10-05 | 2023-07-05 | Univerzita Karlova | High-entropy radiation-resistant alloy and processing it |
| CN115595488A (en) * | 2022-10-20 | 2023-01-13 | 上海大学（Cn） | Low-density medium-entropy alloy with low neutron absorption and preparation method and application thereof |
| CN115595488B (en) * | 2022-10-20 | 2023-09-29 | 上海大学 | Low-neutron-absorption low-density medium-entropy alloy and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101240389B (en) | High Fe contained zirconium alloy compositions having excellent corrosion resistance and preparation method thereof | |
| CN113549803A (en) | Low-neutron-absorption ZrTiNbAlV refractory casting high-entropy alloy and preparation method thereof | |
| CN113430445A (en) | FeCrNiAlMoNb high-entropy alloy and preparation method thereof | |
| CN113549804A (en) | Low-neutron-absorption ZrTiNbAlTa refractory casting high-entropy alloy and preparation method thereof | |
| CN113737078B (en) | High-strength and high-plasticity multi-stage heterostructure medium-entropy alloy and preparation method thereof | |
| CN113462948A (en) | ZrTiNbAlV low-neutron absorption cross-section refractory high-entropy alloy and preparation method thereof | |
| CN106995902B (en) | A kind of FeCrAl based alloy cladding materials and preparation method thereof | |
| CN114807718A (en) | Excellent thermal stability coherent nanophase reinforced medium entropy alloy and preparation method thereof | |
| CN101935778B (en) | Zirconium-based alloy for nuclear reactors and preparation method thereof | |
| CN105238957A (en) | High-property nickel-base superalloy and production method thereof | |
| CN111349816A (en) | Novel Ti-1300F high-strength high-toughness titanium alloy and preparation method thereof | |
| CN110004320B (en) | High-strength high-conductivity Cu-Ag-Sc alloy and preparation method thereof | |
| CN113549805A (en) | ZrTiNbAlTa low-neutron absorption cross-section refractory high-entropy alloy and preparation method thereof | |
| CN101654752A (en) | Zirconium-tin-niobium system zirconium alloy used by nuclear reactor | |
| CN1039067A (en) | cobalt-free nickel-based alloy | |
| CN105441717B (en) | A kind of nuclear power core structural material zirconium-base alloy | |
| CN115976426B (en) | High-strength and high-toughness martensitic heat-resistant steel | |
| CN102212718A (en) | Low tin-zirconium alloy material for nuclear reactor fuel assembly | |
| CN105624467A (en) | Alpha titanium alloy containing Fe and Mn alloy elements | |
| CN107236904B (en) | A kind of nuclear reactor FeCrAl base alloy material and preparation method thereof | |
| CN109971999A (en) | A kind of 1500MPa grades of superelevation be strong, in tough titanium alloy | |
| CN114318093A (en) | Low-cost high-strength high-modulus cast magnesium alloy and preparation method thereof | |
| CN103898365A (en) | Zirconium-based alloy for water-cooled nuclear reactor | |
| CN113584368A (en) | Low-density dual-phase silicide enhanced refractory high-entropy alloy and preparation method thereof | |
| CN112030053A (en) | Light multi-principal-element alloy applied to high-temperature environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211026 |
|
| RJ01 | Rejection of invention patent application after publication |