CN110684936B - Short-cut tungsten fiber reinforced vanadium-chromium-based composite material and preparation method thereof - Google Patents

Short-cut tungsten fiber reinforced vanadium-chromium-based composite material and preparation method thereof Download PDF

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CN110684936B
CN110684936B CN201911111853.1A CN201911111853A CN110684936B CN 110684936 B CN110684936 B CN 110684936B CN 201911111853 A CN201911111853 A CN 201911111853A CN 110684936 B CN110684936 B CN 110684936B
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composite material
vanadium
chromium
fiber reinforced
tungsten
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CN110684936A (en
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沈卫平
周雏蕾
王洪涛
王丽娜
朱梅婷
孙金娥
许志龙
刘振红
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Tianjin College University Of Science & Technology Beijing
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
    • C22C49/10—Refractory metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21B—FUSION REACTORS
    • G21B1/00—Thermonuclear fusion reactors
    • G21B1/11—Details
    • G21B1/13—First wall; Blanket; Divertor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/10—Nuclear fusion reactors

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
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Abstract

The invention provides a short-cut tungsten fiber reinforced vanadium-chromium-based composite material and a preparation method thereof, relates to the technical field of fusion reactor materials, can meet the dual requirements of low activation and low cost, and obtains a composite material with good obdurability, high temperature resistance and excellent comprehensive performance; the composite material comprises: short-cut tungsten fibers with the diameter of 0.1-0.25 mm and the length of 1-5 cm; metal vanadium powder with the average particle size of 10-80 microns; and metal chromium powder with the average particle size of 10-80 microns; the density is 97-99.1%, the tensile strength is 74-113 MPa, and the fracture toughness is 10.3-13.6 MPa.m1/2The thermal conductivity is 51 to 61W/(mK). The technical scheme provided by the invention is suitable for the preparation process of the chopped tungsten fiber reinforced vanadium-chromium-based composite material.

Description

Short-cut tungsten fiber reinforced vanadium-chromium-based composite material and preparation method thereof
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of fusion reactor materials, in particular to a short tungsten fiber reinforced vanadium-chromium-based composite material and a preparation method thereof.
[ background of the invention ]
In a nuclear fusion reactor, the working temperature of a structural support plate of a helium cold divertor is above 700 ℃, and high heat flow impact is borne, so that the component selection of the prepared material is required to ensure that the material has excellent mechanical and thermal properties under various service conditions.
Document 1(SMITH D L, CHUNG H M, LOOMIS B A, et al. reference variable diameter alloy V-4Cr-4Ti for fusion application [ J ]. J.Nucl. Mater.,1996,233: 356. 363.), document 2(KURTZ R J, ABE K, CHERNOV V W, KAZAKOV A, et al. critical issues and current status of variable diameter alloy for fusion application [ J.J.Nucl. Master.,2000,283:70-78.), document 3(CHUNG H M, LOOMIS B A, SMITH D L.development and testing of variable diameter alloy for fusion application [ J.J.J.J.J.J.J.J.J.M., 39156. 1996,239. the property of providing superior performance to other materials, which provide good creep properties for high strain application and low strain resistance to other materials, such as high strain resistance to the alloy. Pure vanadium has good plasticity and low strength, but is easy to oxidize and generate hydrogen embrittlement, and the problems of high-temperature oxidation resistance and hydrogen embrittlement resistance can be solved by adding alloy elements to improve the strength. Currently, the most studied alloys, V-4Cr-4Ti and V-5Cr-5Ti, will likely be the first wall candidate for the DOMO.
In the design process of the nuclear fusion reactor material, the requirement of low activation is met, and meanwhile, the problems of actual cost and the like are considered, so that the alloy material with excellent comprehensive performance is obtained.
Therefore, it is necessary to research a chopped tungsten fiber reinforced vanadium-chromium-based composite material and a preparation method thereof to meet the multiple requirements of low activation, high performance and low cost.
[ summary of the invention ]
In view of the above, the invention provides a chopped tungsten fiber reinforced vanadium-chromium-based composite material and a preparation method thereof, which can meet the dual requirements of low activation and low cost, and obtain a composite material with good toughness, high temperature resistance and excellent comprehensive performance.
In one aspect, the invention provides a chopped tungsten fiber reinforced vanadium-chromium-based composite material, which is characterized by comprising the following components in percentage by weight:
short-cut tungsten fibers with the diameter of 0.1-0.25 mm and the length of 1-5 cm;
metal vanadium powder with the average particle size of 10-80 microns;
and metal chromium powder with the average grain diameter of 10-80 microns.
The above aspects and any possible implementation manner further provide an implementation manner, wherein the density of the composite material is 97-99.1%, the tensile strength is 74-113 MPa, and the fracture toughness is 10.3-13.6 MPa-m1/2The thermal conductivity is 51 to 61W/(mK).
The above-described aspects and any possible implementations further provide an implementation in which the chopped tungsten fibers have a diameter of 0.20 millimeters.
The above aspect and any possible implementation manner further provide an implementation manner that the oxygen content of the chopped tungsten fibers is 0.039w%, the oxygen content of the chromium powder is 0.3w%, and the oxygen content of the vanadium powder is 0.41 w%.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the oxygen content of the composite material is 0.20-0.28 w%.
The above aspect and any possible implementation manner further provide an implementation manner, where the short-cut tungsten fibers account for 5-30% by volume of the composite material, the vanadium powder accounts for 30-50% by volume of the composite material, and the chromium powder accounts for 30-50% by volume of the composite material.
On the other hand, the invention provides a preparation method of a chopped tungsten fiber reinforced vanadium-chromium-based composite material, which is characterized by being suitable for preparing the composite material;
the preparation method comprises the following steps:
s1, mixing the short-cut tungsten fibers, vanadium powder and chromium powder to prepare a mixture;
s2, ball-milling the mixture under the protection of protective gas;
and S3, placing the ball-milled mixture into a hot isostatic pressing sheath for sintering to obtain the chopped tungsten fiber reinforced vanadium-chromium-based composite material.
The above aspects and any possible implementations further provide an implementation where the shielding gas is argon with a purity of 99.99% or more.
The above aspect and any possible implementation further provides an implementation in which the hot isostatic pressing capsule is a 20 low carbon steel.
As for the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the specific step of S3 includes:
s31, placing the mixture into a hot isostatic pressing sheath;
s32, heating, exhausting and sealing the hot isostatic pressing sheath;
s33, sintering the mixture to obtain the chopped tungsten fiber reinforced vanadium-chromium-based composite material;
the specific technological parameters of the sintering are as follows: the sintering temperature is 1300 ℃, the sintering pressure is 130MPa, and the heat preservation time is 3 h.
Compared with the prior art, the invention can obtain the following technical effects: the alloy material has the advantages that the dual requirements of low activation and low cost can be met, the toughness is good, the high temperature is resisted, and the alloy material with excellent comprehensive performance is obtained; the prepared composite material can be used as a support plate material of a fusion reactor helium cold divertor and a material of a fusion reactor tungsten part facing to plasma; when the short-cut tungsten fiber reinforced vanadium-chromium alloy is used as a support plate material and a plasma-oriented tungsten component support material, the short-cut tungsten fiber reinforced vanadium-chromium alloy has better obdurability and thermal conductivity than vanadium alloy, has higher melting point than CrZrCu, has smaller specific gravity than Ta and has low cost.
Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a W provided by one embodiment of the present inventionfThe tensile fracture morphology of the/VCr composite material;
FIG. 2 is a drawing of the present inventionAn embodiment provides WfA relation graph of the diameter of the/VCr composite material tungsten wire and the oxygen content of the alloy;
FIG. 3 is a W provided by one embodiment of the present inventionfA graph of the relationship between the diameter and the density of the/VCr composite material tungsten filament;
FIG. 4 is a W provided by one embodiment of the present inventionfA graph of the diameter of the/VCr composite material tungsten wire and the tensile strength;
FIG. 5 is a W provided by one embodiment of the present inventionfA relation graph of the diameter of the/VCr composite material tungsten wire and fracture toughness;
FIG. 6 is a W provided by one embodiment of the present inventionfThe diameter of the/VCr composite material tungsten wire is plotted against the thermal conductivity.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In order to satisfy the dual requirements of low activation and low cost and obtain an alloy material with excellent comprehensive properties, the following problems should be mainly considered:
(1) high temperature performance: w has good high-temperature performance, and Cr and V have inferior high-temperature performance.
(2) Hydrogen resistance problem: among all elements usable as a plasma-facing material, W is excellent in hydrogen resistance, and Cr and V are inferior in hydrogen resistance to W.
(3) The problem of oxidation: cr has good oxidation resistance and W and V have poor oxidation resistance.
(4) The problems of reinforcement and toughening are as follows: and reinforcing and toughening the vanadium-chromium alloy by using the chopped tungsten fibers.
(5) Problem of specific gravity: w has a large specific gravity and Cr and V have a small specific gravity.
(6) The cost of raw materials is as follows: v costs higher and W, Cr costs relatively lower.
Based on the consideration, the chopped tungsten fibers, the V powder and the Cr powder are used as raw materials, and the chopped tungsten fiber reinforced vanadium-chromium metal matrix composite is prepared by a powder metallurgy method. The composite material has good toughness, can resist high temperature of more than 700 ℃, can be used as a support plate material of a fusion reactor helium cold divertor, and can be used for preparing a novel fusion reactor material facing a plasma tungsten component.
When the short-cut tungsten fiber reinforced vanadium-chromium-based composite material is prepared:
short-cut tungsten fibers with the diameter of 0.1-0.25 mm and the length of 1-5 cm, vanadium powder with the average particle size of 10-80 microns and chromium powder with the average particle size of 10-80 microns, the purity of which is not less than 99.9%, are used as raw materials, and the mixture of the short-cut tungsten fibers, the vanadium powder and the chromium powder is placed in a hot isostatic pressing sheath after being ball-milled in argon gas for carrying out hot isostatic pressing sintering on the tungsten fiber reinforced vanadium-chromium alloy. The composite material comprises a tungsten fiber, a vanadium powder and a chromium powder, wherein the tungsten fiber accounts for 5-30% of the volume fraction of the whole composite material, the vanadium powder accounts for 30-50% of the volume fraction of the whole composite material, and the chromium powder accounts for 30-50% of the volume fraction of the whole composite material.
The density of the chopped tungsten fiber reinforced vanadium-chromium alloy is 97-99.1%, and the density of the reinforced vanadium-chromium alloy is 99.1% when the diameter of a tungsten filament is 0.20 mm; the tensile strength is 74-113 MPa, the maximum tensile strength of the tungsten wire with the diameter of 0.20 mm is 113MPa, which is higher than the tensile strength of the vanadium-chromium alloy by 83-90 MPa; the fracture toughness is 10.3-13.6 MPa.m1/2The maximum fracture toughness of the tungsten wire with a diameter of 0.20 mm is 13.6 MPa.m1/2(ii) a The thermal conductivity is 51-61W/(m.K), the thermal conductivity of the tungsten fiber is larger as the tungsten fiber is thicker, the thermal conductivity of the tungsten filament with the diameter of 0.20 mm is 52.6W/(m.K), and the thermal conductivity is higher than that of vanadium (30.98W/(m.K)), close to that of chromium (66.99W/(m.K)), and lower than that of tungsten (166.22W/(m.K)).
The oxygen content of the raw material tungsten filament is 0.039w% or less, the oxygen content of the chromium powder is 0.3w% or less, and the oxygen content of the vanadium powder is 0.41w% or less. The oxygen content of the composite material of the sintered short-cut tungsten fiber reinforced vanadium-chromium alloy is 0.20-0.28 w%, compared with chromium powder and vanadium powder, the oxygen content is reduced to a certain extent, and when the diameter of a tungsten filament is 0.25mm, the maximum reduction range is 0.20 w%.
Example 1:
the raw material is commercial coiled tungsten wire, and the tungsten content is more than 99.52 percent. After post-processing, cutting the crimped tungsten wire into short tungsten fibers with the lengths of 1-5 cm and the diameters of 0.1mm, 0.15mm, 0.2mm and 0.25mm respectively; selecting commercial vanadium powder, wherein the average particle size of vanadium powder particles is 24.5-24.6 mu m, and the purity is more than or equal to 99.9%; commercial chromium powder is selected, the average grain diameter of the chromium powder is 15.3-15.4 mu m, and the purity is more than or equal to 99.9%.
The tungsten fiber accounts for 15% of the volume fraction of the whole composite material, the vanadium powder accounts for 35% of the volume fraction of the whole composite material, and the chromium powder accounts for 50% of the volume fraction of the whole composite material. Adding short-cut tungsten fibers into mixed powder of vanadium powder and chromium powder, performing mechanical ball milling by using a horizontal planetary ball mill, using high-purity argon (the purity is more than or equal to 99.99%) as protective gas in order to prevent powder from being oxidized in the ball milling process, wherein the ball milling time is 16h, and the ball milling speed is 200 RPM.
Choose No. 20 low carbon steel as hot isostatic pressing canning material, fill after the mixed raw materials, carry out the seal welding of bleeding to the hot isostatic pressing canning, discharge in the ladle and remain air and powder surface adsorption's some gas between the powder pore in the cover, prevent that the canning from cracking and mixed raw materials when the sintering, the seal welding technology of bleeding is: gradually heating the hot isostatic pressing steel sheath filled with the mixed raw materials to 450 ℃, and then vacuumizing the hot isostatic pressing steel sheath when the vacuum degree reaches 2 x 10-3And (4) after Pa, keeping the temperature for 12 hours to ensure that the extraction opening is quickly sealed and welded after complete air extraction.
And (3) sintering the sealed and welded steel sheath filled with the mixed powder in a hot isostatic pressing device, wherein the sintering process parameters are as follows: the sintering temperature is 1300 ℃, the pressure is 130MPa, the heat preservation time is 3h, and then the sample is taken out after the furnace cooling to the normal temperature.
Tensile fracture of composite materialsThe appearance is shown in fig. 1, a plurality of tungsten fibers can be seen to be broken, which indicates that the chopped tungsten fibers have the reinforcing property; the phenomena of interface debonding, fiber pulling-out and crack deflection occur during crack propagation, which indicates that the chopped tungsten fiber has the toughening performance of inhibiting the crack propagation. And (3) performing performance test and analysis on the alloy materials prepared from the tungsten fibers with different diameters to obtain test results of figures 2-6. FIG. 2 is a graph showing the relationship between the diameter of the tungsten fiber and the oxygen content of the alloy, and it can be seen from FIG. 2 that the oxidation amount shows a change of decreasing first and then increasing and then decreasing greatly when the diameter of the tungsten fiber increases from 0.1mm to 0.25mm, but the general trend is significantly decreasing and reaches a minimum value of 0.20 w% at 0.25 mm; FIG. 3 is a graph showing the relationship between the diameter of the tungsten fiber and the density of the alloy, and it can be seen from FIG. 3 that as the particle size of the tungsten fiber increases from 0.10 mm to 0.25mm, the density of the alloy shows a change of decreasing after increasing, and the density is the largest at a tungsten wire diameter of 0.20 mm, reaching 99.1%; FIG. 4 is a graph showing the relationship between the diameter of a tungsten fiber and the tensile strength of the alloy, and it can be seen from FIG. 4 that as the diameter of the tungsten fiber increases from 0.1mm to 0.25mm, the tensile strength of the alloy changes from decreasing to increasing to decreasing, and the tensile strength is at a maximum of 113MPa at a diameter of 0.20 mm of the tungsten wire; FIG. 5 is a graph showing the relationship between the diameter of the tungsten fiber and the fracture toughness of the alloy, and it can be seen from FIG. 5 that the fracture toughness of the alloy changes from rising to falling as the diameter of the tungsten fiber increases from 0.1mm to 0.25mm, and the fracture toughness of the alloy is the largest at a diameter of 0.20 mm of the tungsten wire, which is 13.6MPa · m1/2(ii) a Fig. 6 is a graph showing the relationship between the diameter of the tungsten fiber and the thermal conductivity of the alloy, and it can be seen from fig. 6 that the thermal conductivity of the alloy changes from rising to falling after rising as the diameter of the tungsten fiber increases from 0.1mm to 0.25mm, but the general trend is obviously rising, and the thermal conductivity is maximum and reaches 61W/(m · K) when the diameter of the tungsten fiber is 0.25 mm.
The chopped tungsten fiber reinforced vanadium-chromium-based composite material and the preparation method thereof provided by the embodiment of the application are described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core ideas; meanwhile, for those skilled in the art, according to the idea of the present application, the specific embodiment and the application range may be changed, for example, adding a proper amount of titanium powder to vanadium powder and chromium powder. In view of the above, the description should not be taken as limiting the application.
As used in the specification and claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims (7)

1. The chopped tungsten fiber reinforced vanadium-chromium-based composite material is characterized by comprising the following raw materials:
short-cut tungsten fibers with the diameter of 0.1-0.25 mm and the length of 1-5 cm;
metal vanadium powder with the average particle size of 10-80 microns;
and metal chromium powder with the average particle size of 10-80 microns;
in the composite material, the chopped tungsten fibers account for 5-30% of the composite material by volume, the vanadium accounts for 30-50% of the composite material by volume, and the chromium accounts for 30-50% of the composite material by volume;
the density of the composite material is 97-99.1%, the tensile strength is 74-113 MPa, and the fracture toughness is 10.3-13.6 MPa.m1/2The thermal conductivity is 51-61W/(m.K);
the steps of the method of making the composite material include:
s1, mixing the short-cut tungsten fibers, vanadium powder and chromium powder to prepare a mixture;
s2, ball-milling the mixture under the protection of protective gas;
and S3, placing the ball-milled mixture into a hot isostatic pressing sheath for sintering to obtain the chopped tungsten fiber reinforced vanadium-chromium-based composite material.
2. The chopped tungsten fiber reinforced vanadium chromium based composite material according to claim 1 wherein the chopped tungsten fibers have a diameter of 0.20 mm.
3. The chopped tungsten fiber reinforced vanadium-chromium based composite material according to claim 1, wherein the oxygen content of the chopped tungsten fibers is 0.039w%, the oxygen content of the chromium powder is 0.3w%, and the oxygen content of the vanadium powder is 0.41 w%.
4. The chopped tungsten fiber reinforced vanadium-chromium based composite material according to claim 1, wherein the oxygen content of the composite material is 0.20 to 0.28 w%.
5. The chopped tungsten fiber reinforced vanadium-chromium-based composite material according to claim 1, wherein the protective gas is argon with a purity of not less than 99.99%.
6. The chopped tungsten fiber reinforced vanadium-chromium based composite material of claim 1 wherein the hot isostatic pressing capsule is a 20 mild steel.
7. The chopped tungsten fiber reinforced vanadium-chromium based composite material according to claim 1, wherein said specific step of S3 comprises:
s31, placing the mixture into a hot isostatic pressing sheath;
s32, heating, exhausting and sealing the hot isostatic pressing sheath;
s33, sintering the mixture to obtain the chopped tungsten fiber reinforced vanadium-chromium-based composite material;
the specific technological parameters of the sintering are as follows: the sintering temperature is 1300 ℃, the sintering pressure is 130MPa, and the heat preservation time is 3 h.
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CN102560292A (en) * 2012-02-29 2012-07-11 中国科学院等离子体物理研究所 Tungsten-based plasma facing material and preparation method thereof
CN106756375A (en) * 2017-01-03 2017-05-31 北京科技大学 A kind of vanadium alloy composite and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102560292A (en) * 2012-02-29 2012-07-11 中国科学院等离子体物理研究所 Tungsten-based plasma facing material and preparation method thereof
CN106756375A (en) * 2017-01-03 2017-05-31 北京科技大学 A kind of vanadium alloy composite and preparation method thereof

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