CN115341126B - High-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material - Google Patents
High-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material Download PDFInfo
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Abstract
The invention relates to a high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy material, which is characterized by comprising the following main components in percentage by mass: b:0.05 to 10.0 percent, cr is less than or equal to 10.0 percent or Al is less than or equal to 10.0 percent; the rest components are yttrium and unavoidable impurities; the grain size of the prepared yttrium-based alloy material is 10-50 mu m. The preparation method of the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material comprises the following steps: a. adopting a special vacuum smelting process, and carrying out raw material proportioning according to the following mass percent (%) of main raw material components when the raw materials are proportioned: b:0.05 to 10.0 percent, less than or equal to 10.0 percent of Cr or less than or equal to 10.0 percent of Al, and the balance of yttrium and unavoidable impurities. Carrying out special smelting on all the weighed raw materials after proportioning to obtain an alloy melt, and casting and forming; b. and c, sequentially carrying out hot forging or hot pressing, hot rolling, cold rolling, annealing, hydrogenation and other processes on the alloy cast ingot prepared in the step a, and finally preparing the high-temperature neutron slowing and absorption integrated composite shielding yttrium-based alloy material plate.
Description
Technical Field
The invention belongs to the technical field of nuclear energy special alloy materials, and particularly relates to an yttrium-based alloy material, in particular to a high-temperature neutron-resistant slowing and absorbing integrated composite shielding yttrium-based alloy material.
Background
The disclosure of this background section is only intended to increase the understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
With the continuous development of aviation nuclear power and vehicle-mounted nuclear power propulsion, a small nuclear reactor power supply is applied to various high-demand environments such as space operation and rapid track transfer. As an indispensable core component in a nuclear reactor, the performance of a neutron shielding material affects the performance of a nuclear reactor power supply. LiH (unstable, decomposition at about 600 ℃) and ZrH for neutron shielding of unmanned space stacks such as U.S., soviet Union and French 2 (decomposition at about 800 ℃ C.) TiH 2 (about 800 ℃ C. Decomposition). Whereas YH 2 The decomposition temperature of the catalyst reaches more than 1000 ℃ and is more stable. At present, due to the fact that the existing yttrium alloy has extremely large crystal grains and poor high-temperature oxidation resistance, high-temperature hydrogen-induced embrittlement and surface are easy to generate oxygen-nitrogen reaction, fast neutrons can be shielded, the thermal neutron shielding capability is weak, and engineering application is limited to a certain extent. Because the temperature of the shielding environment of the movable piles such as the space piles, the vehicle-mounted piles and the like is higher and higher, development of a light and efficient fast neutron and thermal neutron slowing and absorption integrated composite shielding new material with low density, strong shielding capability, high temperature resistance and high temperature oxidation resistance is urgently needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to overcome the defects of the existing materials and technologies and provide a high-temperature-resistant neutron slowing and absorbing integrated composite shielding yttrium-based alloy material for preparing the high-temperature-resistant neutron slowing and absorbing integrated composite shielding yttrium-based alloy material.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a high-temperature neutron moderating and absorbing integrated composite shielding yttrium-based alloy material, which is characterized by comprising the following main components in percentage by mass:
b:0.05 to 10.0 percent, cr is less than or equal to 10.0 percent, and Al is less than or equal to 10.0 percent; the rest components are yttrium and unavoidable impurities;
the grain size of the yttrium-based alloy material is 10-50 mu m.
Preferably, the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material is characterized by comprising the following main components in percentage by mass: b:0.05 to 5.0 percent, cr:0 to 6.0%, or Al:0 to 7.0 percent, and the rest components are yttrium and unavoidable impurities.
The invention provides a preparation method of a high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material, which comprises the following steps:
a. adopting a special vacuum smelting process, and carrying out raw material proportioning according to the following mass percent (%) of main raw material components when the raw materials are proportioned: b:0.05 to 10.0 percent, cr is less than or equal to 10.0 percent or Al is less than or equal to 10.0 percent; the rest components are yttrium and unavoidable impurities; carrying out special smelting on all the weighed raw materials after proportioning to obtain an alloy melt, and casting and forming;
b. and c, sequentially carrying out hot forging or hot pressing, hot rolling, cold rolling, annealing, hydrogenation and other processes on the alloy cast ingot prepared in the step a, and finally preparing the high-temperature neutron slowing and absorption integrated composite shielding yttrium-based alloy material plate.
Preferably, in the step a, a special vacuum melting process is adopted, and the prepared raw materials are put into special vacuumVacuum-pumping to 3×10 -3 Pa is above, and then high-purity argon is introduced as shielding gas; heating to 1700 deg.c at certain temperature raising rate for at least 10min to obtain molten alloy, and casting;
preferably, in the step b, the alloy ingot obtained by casting and forming the alloy melt prepared in the step a is subjected to hot pressing and hot rolling treatment, wherein the hot pressing temperature is controlled to be not lower than 800 ℃, the hot rolling temperature is controlled to be not lower than 850 ℃, the hot rolling is repeated for at least 3 times, and then the cold rolling is performed for at least 3 times;
preferably, annealing heat treatment in an argon protective atmosphere and hydrogenation process heat treatment are carried out, and then cooling is carried out to room temperature, so that the high-temperature neutron slowing and absorption integrated composite shielding yttrium-based alloy material plate is finally prepared.
Preferably, in the step a, the raw material ingredients are prepared according to the following mass percent (%): b:0.05 to 5.0 percent, cr:0 to 6.0 percent or Al:0 to 7.0 percent, and the rest components are yttrium and unavoidable impurities.
The invention provides a high-temperature-neutron-moderating and absorbing-integrated composite shielding yttrium-based alloy material or application of the yttrium-based alloy material prepared by the preparation method of the high-temperature-neutron-moderating and absorbing-integrated composite shielding yttrium-based alloy material in neutron moderating and absorbing-integrated composite shielding bodies in movable piles such as space piles, vehicle-mounted piles and the like.
One or more of the technical schemes of the invention has the following beneficial effects:
(1) LiH and ZrH for neutron shielding at present 2 And TiH 2 Compared with the yttrium-based alloy material for neutron moderating and absorbing integrated composite shielding, the yttrium-based alloy material for neutron moderating and absorbing integrated composite shielding has higher use temperature, can be used in an environment with high temperature of 600-1000 ℃, and is a high-efficiency high-temperature-resistant neutron moderating and absorbing integrated composite shielding material.
(2) The light high-efficiency high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material is subjected to hot rolling or hot pressing, annealing treatment, hydrogenation treatment and other processes within the component rangeAfter that, the crystal grains are fine, so that the crystal grains have higher strength and toughness, and the boron also has a larger thermal neutron absorption cross section, so that thermal neutrons can be absorbed, and the crystal grains are used for replacing LiH and ZrH for neutron shielding in future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderating and absorbing integrated composite shielding materials.
(3) The light high-efficiency high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material has the advantages of low density, high strength, high temperature resistance, good plastic toughness, corrosion resistance, radiation resistance and simple production process; the yttrium-based alloy material with the light and high-efficiency neutron moderating and absorbing integrated shielding can be used as a neutron moderating and absorbing integrated composite shielding body in a space pile, a vehicle-mounted pile and other movable piles.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The invention relates to a high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material, which is characterized by comprising the following main components in percentage by mass:
b:0.05 to 10.0 percent, cr is less than or equal to 10.0 percent or Al is less than or equal to 10.0 percent; the rest components are yttrium and unavoidable impurities;
wherein Cr and Al are not added at the same time.
Y has smaller density, and the hydrogenated yttrium hydride has higher decomposition temperature and excellent fast neutron shielding capability at high temperature.
The average thermal neutron absorption cross section of the B element reaches 750ba, and the B element has excellent thermal neutron absorption capacity and forms a high-melting point YB with yttrium 2 The amount of B used is preferably 0.05 to 5.0% for refining the crystal grains.
The Cr element can improve the high-temperature oxidation resistance of the yttrium-based alloy, and the Cr content is preferably 0-6.0%.
The Al element is capable of improving the high-temperature oxidation resistance of the yttrium-based alloy, and the use amount of Al is preferably 0 to 7.0%.
The invention relates to a preparation method of a high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material, which comprises the following steps:
a. adopting a special vacuum smelting process, and carrying out raw material proportioning according to the following mass percent (%) of main raw material components when the raw materials are proportioned: b:0.05 to 10.0 percent, less than or equal to 10.0 percent of Cr or less than or equal to 10.0 percent of Al, and the balance of yttrium and unavoidable impurities. Carrying out special smelting on all the weighed raw materials after proportioning to obtain an alloy melt, and casting and forming;
b. and c, sequentially carrying out hot forging or hot pressing, hot rolling, cold rolling, annealing, hydrogenation and other processes on the alloy cast ingot prepared in the step a, and finally preparing the high-temperature neutron slowing and absorption integrated composite shielding yttrium-based alloy material plate.
In a further embodiment of the present invention, in the step a, a special vacuum melting process is used to put the prepared raw materials into a special vacuum furnace, and vacuum is pumped to 3×10 -3 Pa is above, and then high-purity argon is introduced as shielding gas; heating to 1700 deg.c at certain temperature raising rate for at least 10min to obtain molten alloy, and casting;
in still another specific embodiment of the present invention, in the step b, the alloy ingot obtained by casting the alloy melt prepared in the step a is subjected to hot pressing and hot rolling treatment, wherein the hot pressing temperature is controlled to be not lower than 800 ℃, the hot rolling temperature is controlled to be not lower than 850 ℃, the repeated rolling is performed for at least 3 times, and then the cold rolling is performed for at least 3 times; then carrying out annealing heat treatment in an argon protective atmosphere and hydrogenation process heat treatment, and then cooling to room temperature to finally obtain the high-temperature neutron-resistant slowing and absorbing integrated composite shielding yttrium-based alloy material plate.
In a further specific embodiment of the present invention, in the step a, the raw material ingredients are mixed according to the following composition by mass percent (%): b:0.05 to 5.0 percent, cr:0 to 6.0 percent or Al:0 to 7.0 percent, and the rest components are yttrium and unavoidable impurities.
After hot rolling or hot pressing, annealing treatment, hydrogenation treatment and other processes are carried out within the component range of the invention, the prepared high-temperature-resistant neutron slowing and absorbing integrated composite shielding yttrium-based alloy material has the characteristic of light weight because Y has smaller density;
because the hydrogenated yttrium has higher decomposition temperature, cr and Al elements can improve the high-temperature oxidation resistance of yttrium-based alloy, and meanwhile, B and Y can form high-melting-point YB 2 The yttrium-based alloy material has high temperature resistance and high temperature oxidation resistance, has higher use temperature, and can be used in the environment of 600-1000 ℃.
Since B and Y can form high-melting YB 2 The yttrium-based alloy has fine crystal grains and the grain size is 10-50 mu m; the crystal grains are fine, so that the alloy has higher strength and better plasticity and toughness;
the boron has a larger thermal neutron absorption section, so that the Y has excellent capability of shielding fast neutrons at high temperature, and the prepared yttrium-based alloy can efficiently realize the slowing and absorption integration of the fast neutrons and the thermal neutrons;
therefore, the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the same series are compared with the prior LiH and ZrH 2 And TiH 2 Iso-alloy material, yttrium-based alloy of the inventionThe gold material has the characteristics of light weight, high temperature resistance, high temperature oxidation resistance, high strength, good plasticity and toughness, corrosion resistance, irradiation resistance, and capability of efficiently realizing the integration of fast neutron and thermal neutron slowing and absorption, and simple production process.
The invention will be further illustrated by the following examples
Example 1
In this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 0.05
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature-resistant composite neutron shielding yttrium-based alloy plate.
The experimental test shows that the grain size of the alloy material prepared by the embodiment is 10-50 mu m, can be used as a neutron moderating and absorbing integrated composite shielding material, and is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 2
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 0.5
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The experimental test shows that the grain size of the alloy material prepared by the embodiment is 10-50 mu m, can be used as a neutron moderating and absorbing integrated composite shielding material, and is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 3
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 2.0
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The test results show that the grain size of the alloy material prepared by the embodiment is 10-50 mu m, can be used as neutron moderating and absorbing integrated composite shielding material, and is the futureReplace LiH and ZrH for neutron shielding at present 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 4
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 5.0
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The experimental test shows that the grain size of the alloy material prepared by the embodiment is 10-30 mu m, can be used as a neutron moderating and absorbing integrated composite shielding material, and is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 5
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 8.0
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The experimental test shows that the grain size of the alloy material prepared by the embodiment is 10-50 mu m, can be used as a neutron moderating and absorbing integrated composite shielding material, and is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 6
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 10.0
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The experimental test shows that the alloy material prepared by the embodiment has the grain size of 10-50 mu m and can be used as neutron slowing and absorption integrated compositeThe shielding material is used for replacing LiH and ZrH for neutron shielding in future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 7
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 1.0
Cr 6.0
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The experimental test shows that the grain size of the alloy material prepared by the embodiment is 10-50 mu m, can be used as a neutron moderating and absorbing integrated composite shielding material, and is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Example 8
This embodiment is substantially the same as embodiment 1, except that:
in this embodiment, a preparation method of a high temperature resistant neutron slowing and absorption integrated composite shielding yttrium-based alloy material includes the following steps:
a. adopting a special vacuum melting process, and when raw materials are mixed, mixing the raw materials according to the following mass percent (%):
B 0.5
Al 5.0
y allowance
Mixing the weighed raw materials after proportioning, and then carrying out vacuum smelting to obtain an alloy melt;
b. and c, casting and forming the alloy melt prepared in the step a, and sequentially carrying out hot forging or hot pressing, hot rolling, annealing, hydrogenation and other processes on the alloy cast ingot obtained by casting to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy plate.
The experimental test shows that the grain size of the alloy material prepared by the embodiment is 10-50 mu m, can be used as a neutron moderating and absorbing integrated composite shielding material, and is used for replacing LiH and ZrH for neutron shielding in the future 2 And TiH 2 The optimal candidate materials of the series are high-efficiency high-temperature-resistant neutron moderation and absorption integrated composite shielding yttrium-based alloy materials.
Claims (11)
1. The preparation method of the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material is characterized by comprising the following steps of:
(a) Adopting a special vacuum smelting process, and when raw materials are proportioned, the main raw materials comprise the following components in percentage by mass: b:0.05 to 10.0 percent, less than or equal to 10.0 percent of Cr or less than or equal to 10.0 percent of Al, and the rest raw material components are yttrium and unavoidable impurities, and all the raw materials weighed after the proportioning are subjected to special smelting to obtain alloy melt, and casting and molding;
(b) And (c) sequentially carrying out hot forging or hot pressing, hot rolling, cold rolling, annealing, hydrogenation and other processes on the alloy cast ingot prepared in the step (a) to finally prepare the high-temperature neutron-resistant slowing and absorption integrated composite shielding yttrium-based alloy material plate.
2. The method for preparing the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material as claimed in claim 1, which is characterized in thatIn the step (a), a special vacuum melting process is adopted, the prepared raw materials are put into a special vacuum furnace, and the vacuum is pumped to 3 multiplied by 10 -3 Pa or above, and then introducing high-purity argon as shielding gas.
3. The method for preparing the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material according to claim 2, which is characterized in that the method comprises the steps of heating, heating to 1700 ℃ according to a certain heating rate, carrying out heat preservation and smelting for at least 10min to obtain an alloy melt, and casting and molding.
4. The method of claim 1, wherein in the step (b), the alloy ingot obtained by casting the alloy melt prepared in the step (a) is subjected to hot pressing and hot rolling, the hot pressing temperature is controlled to be not lower than 800 ℃, the hot rolling temperature is controlled to be not lower than 850 ℃, the hot rolling is repeated for at least 3 times, and then the cold rolling is performed for at least 3 times.
5. The method for preparing the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material according to claim 4, which is characterized in that after hot pressing, hot rolling and cold rolling treatment, annealing heat treatment in an argon protective atmosphere and hydrogenation process heat treatment are carried out, and then cooling is carried out to room temperature, so that the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material plate is finally prepared.
6. The method for preparing the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material according to claim 1, wherein in the step (a), raw material ingredients are prepared according to the following mass percent: b:0.05 to 5.0 percent, cr:0 to 6.0 percent or Al:0 to 7.0 percent, and the rest components are yttrium and unavoidable impurities.
7. The high-temperature neutron moderating and absorbing integrated composite shielding yttrium-based alloy material prepared by the preparation method of claim 1 is characterized by comprising the following main components in percentage by mass:
b:0.05 to 10.0 percent, cr is less than or equal to 10.0 percent or Al is less than or equal to 10.0 percent; the rest components are yttrium and unavoidable impurities;
the grain size of the yttrium-based alloy material is 10-50 mu m.
8. The high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material according to claim 7, wherein the mass percentage of B is 0.05-5.0%.
9. The high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material according to claim 7, wherein the mass percentage of Cr is 0-6.0%.
10. The high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material according to claim 7, wherein the mass percentage of Al is 0-7.0%.
11. The application of the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material prepared by the preparation method of any one of claims 1 to 6 or the high-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material of any one of claims 7 to 10 in neutron moderating and absorbing integrated composite shielding bodies in movable piles such as space piles, vehicle-mounted piles and the like.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211128393.5A CN115341126B (en) | 2022-09-16 | 2022-09-16 | High-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material |
| PCT/CN2023/108274 WO2024055747A1 (en) | 2022-09-16 | 2023-07-20 | Composite shielding yttrium-based alloy material, and preparation method therefor and use thereof |
Applications Claiming Priority (1)
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| CN116750718B (en) * | 2023-05-11 | 2024-04-30 | 有研资源环境技术研究院(北京)有限公司 | Hafnium hydride neutron absorption material and preparation method thereof |
| CN116253290B (en) * | 2023-05-11 | 2023-08-04 | 有研资源环境技术研究院(北京)有限公司 | Yttrium hydride moderating material, preparation method and application thereof |
| CN116640975B (en) * | 2023-05-11 | 2024-03-12 | 有研资源环境技术研究院(北京)有限公司 | Yttrium-based alloy, preparation method and application |
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| DE2116261A1 (en) * | 1971-04-02 | 1972-10-12 | Battelle Institut E V | Magnesium-lithium alloys - contg hydrogen as shields against fast neutrons |
| JP2002311190A (en) * | 2001-04-12 | 2002-10-23 | Toshiba Corp | Neutron shielding material, spent fuel storage rack, cask for spent fuel transportation and its production method |
| FR2918389B1 (en) * | 2007-07-06 | 2009-09-25 | Saft Groupe Sa | NEGATIVE ACTIVE MATERIAL FOR ACCUMULATOR NICKEL METAL HUDRURE |
| KR20100047510A (en) * | 2008-10-29 | 2010-05-10 | 한국원자력연구원 | Radiation shielding members including nano-particles as a radiation shielding materials and preparation method thereof |
| ITMI20090410A1 (en) * | 2009-03-18 | 2010-09-19 | Getters Spa | NON EVAPORABLE GETTER ALLOYS PARTICULARLY SUITABLE FOR HYDROGEN ABSORPTION |
| KR101290304B1 (en) * | 2012-05-18 | 2013-07-26 | 주식회사 대화알로이테크 | Manufacturing method of material for shielding and absorbing thermal neutron |
| CN106480348B (en) * | 2015-08-24 | 2018-03-20 | 湖南稀土院有限责任公司 | A kind of grey control rod absorbent material and preparation method thereof |
| CN106086692B (en) * | 2016-06-13 | 2017-12-05 | 上海大学 | Reactor spentnuclear fuel storing special steel base alloy material and preparation method thereof |
| CN109628816B (en) * | 2018-12-13 | 2020-11-03 | 有研工程技术研究院有限公司 | Gadolinium-iron alloy foil with high neutron absorption performance and preparation method thereof |
| CN109797309A (en) * | 2019-01-30 | 2019-05-24 | 中广核工程有限公司 | A kind of structure-function integration neutron absorber material High-Temperature Strengthening method |
| JP2021032712A (en) * | 2019-08-26 | 2021-03-01 | 国立大学法人大阪大学 | Neutron shielding material and method for producing the same |
| GB202019903D0 (en) * | 2020-12-16 | 2021-01-27 | Tokamak Energy Ltd | On the design of a composite hybride-metal to accommodate hydride decomposition |
| CN114804028B (en) * | 2022-05-09 | 2024-04-30 | 西安稀有金属材料研究院有限公司 | Crack-free yttrium hydride neutron moderating material for space reactor and preparation method thereof |
| CN115341126B (en) * | 2022-09-16 | 2023-07-11 | 上海核工程研究设计院股份有限公司 | High-temperature-resistant neutron moderating and absorbing integrated composite shielding yttrium-based alloy material |
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