CN109898005A - A kind of WVTaZrHf infusibility high-entropy alloy of high intensity and preparation method thereof - Google Patents
A kind of WVTaZrHf infusibility high-entropy alloy of high intensity and preparation method thereof Download PDFInfo
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- CN109898005A CN109898005A CN201910347837.6A CN201910347837A CN109898005A CN 109898005 A CN109898005 A CN 109898005A CN 201910347837 A CN201910347837 A CN 201910347837A CN 109898005 A CN109898005 A CN 109898005A
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- 239000000956 alloy Substances 0.000 title claims abstract description 49
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000005245 sintering Methods 0.000 claims abstract description 24
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 21
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 19
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 15
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 12
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 238000002490 spark plasma sintering Methods 0.000 claims 1
- 239000000470 constituent Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 11
- 238000010792 warming Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 4
- 239000000320 mechanical mixture Substances 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The invention discloses WVTaZrHf infusibility high-entropy alloys of a kind of high intensity and preparation method thereof, wherein the constituent element of WVTaZrHf infusibility high-entropy alloy includes W, V, Ta, Zr, Hf, each component is constituted by atomic percent are as follows: W 22.5~23.5%, V 22.5~23.5%, Ta 22.5~23.5%, Zr 6-10%, Hf 22.5~23.5%.The present invention usually improves the structure of alloy by adding Zr, Hf member, prepares the infusibility high entropy alloy material with close-packed hexagonal structure by discharge plasma sintering, and then improve the hardness and strength of infusibility high-entropy alloy.
Description
Technical field
The present invention relates to a kind of infusibility high-entropy alloy and preparation method thereof, specifically a kind of WVTaZrHf of high intensity
Infusibility high-entropy alloy and preparation method thereof.
Background technique
Due to being influenced by lanthanide contract, the atomic radius of hafnium is almost equal with zirconium, therefore the property extremely phase of hafnium and zirconium
Seemingly.The crystal structure of hafnium and zirconium is all close-packed hexagonal structure.Hafnium has the stronger ability for absorbing neutron, and can slow down nucleon
The rate of chain reaction inhibits " flame " of atomic reaction.Meanwhile with stronger high-temperature-resistant and anti-corrosion performance, and form
Material has the characteristics such as the strong, easy processing of plasticity, therefore becomes one of the important materials of atomic energy industry, is now widely used for
Manufacture the control rod and protective device of nuclear reactor.Zirconium have excellent corrosion resistance, high fusing point, superelevation hardness and
The characteristics such as intensity are widely used in aerospace, military project, nuclear reaction, atomic energy field.Zirconium can be used as " the dimension of metallurgical industry
Raw element ", plays its strong deoxidation, denitrogenates, the effect of desulfuration.
High-entropy alloy, the alloy of the alloy being made of a variety of essential elements, especially five yuan or more, and it is each main
Element atomic percentage with higher, generally between 5% to 35%, therefore can without a kind of atomic percent of element
More than 50%, and then become alloy with a kind of alloy material of element essential element.Research is found by high entropy effect
It influences, and the possessed mixing of when entropy of mixing of the more high-entropy alloy of element number often is much higher than to form intermetallic compound
Entropy, this effect can make intermetallic compound be difficult to occur, thus the formation for being easy to that there is the solid solution of simple structure, by a variety of
The randomness of the alloy system of metallic element composition is very big, and the alloy system entropy of mixing is larger at this time, then system is more stable, to have
Conducive to effective mixing between various elements so that each constituent element No- L aw Order and form simple crystalline phase, i.e. the generation center of area
Cubic crystal, body centred cubic crystal or Patterns for Close-Packed Hexagonal Crystal inhibit the formation of intermetallic compound brittlement phase.
Summary of the invention
The present invention provides WVTaZrHf infusibility high-entropy alloy of a kind of high intensity and preparation method thereof, by addition Zr,
Hf member usually improves the structure of alloy, and the infusibility high-entropy alloy with close-packed hexagonal structure is prepared by discharge plasma sintering
Material, and then improve the hardness and strength of infusibility high-entropy alloy.
Discharge plasma sintering is with heating rate is fast, sintering time is short, even tissue, the natural shape for being able to maintain raw material
The high feature of state, sintered body consistency is a kind of high-efficient, simple process preparation method.The present invention is using powder mixing machine
Method obtains composite granule, then prepares the good WVTaZrHf of the comprehensive performances such as hardness, intensity by discharge plasma sintering
Single-phase infusibility high entropy alloy material.
High-intensitive WVTaZrHf infusibility high-entropy alloy of the invention, constituent element include W, V, Ta, Zr, Hf, and each component is by original
Sub- percentage is constituted are as follows: and W22.5~23.5%, V22.5~23.5%, Ta22.5~23.5%, Zr6-10%, Hf22.5~
23.5%.
The preparation method of high-intensitive WVTaZrHf infusibility high-entropy alloy of the invention, includes the following steps:
Step 1: mixed powder
Five kinds of metal powders of W, V, Ta, Zr, Hf are measured according to the ratio and is placed in mechanical mixture in barrel mixer and obtains W-V-Ta-
Zr-Hf composite powder；
In step 1, Particle Sizes are as follows: W Powder Particle Size is 2 μm, and V Powder Particle Size is 25 μm, and Ta Powder Particle Size is 25 μm, Zr powder
Granularity is 28 μm, and Hf Powder Particle Size is 38 μm.(W fusing point: 3410 DEG C；V fusing point: 1890 DEG C, boiling point: 3000 DEG C；Ta fusing point: 2996
DEG C, boiling point: 5425 DEG C；Zr fusing point: 1852 DEG C, boiling point: 4377 DEG C, Hf fusing point: 2227 DEG C, boiling point: 4602 DEG C)
Step 2: sintering
W-V-Ta-Zr-Hf composite powder is packed into graphite jig, then mold is put into discharge plasma sintering furnace, it is right
It is sintered stove evacuation, then 800 DEG C is warming up to 100 DEG C/min and keeps the temperature 10 minutes, control pressure is no more than 25MPa；Then with
100 DEG C/min is warming up to 1500 DEG C and keeps the temperature 5 minutes, and pressure is controlled in sintering and is no more than 50MPa, is down to room temperature after heat preservation,
Room temperature is down to get W-V-Ta-Zr-Hf high entropy alloy material is arrived with 100 DEG C/min after heat preservation.
The beneficial effects of the present invention are embodied in:
The addition of Zr, Hf of the present invention improve the structure of alloy, are prepared by discharge plasma sintering with solid matter six
The infusibility high entropy alloy material of square structure, significantly improves the hardness and strength of infusibility high-entropy alloy.The difficulty that the present invention prepares
The close-packed hexagonal structure that molten high entropy alloy material tissue is, microscopic structure is uniform, and relative density is up to 99.9% or more, microhardness
576.3~600.2Hv of value is better than pure tungsten material (320~360Hv of microhardness).Compressive strength at room temperature 1207.6~
1439.4MPa。
Detailed description of the invention
Fig. 1 shows the X-ray diffractogram of the single-phase infusibility high-entropy alloy of W-V-Ta-Zr-Hf of the preparation of the embodiment of the present invention 2
Spectrum, showing that the present invention prepares alloy structure is that close-packed hexagonal is single-phase.
Fig. 2 shows the scanning electron of the single-phase infusibility high-entropy alloy of W-V-Ta-Zr-Hf of the preparation of the embodiment of the present invention 2 is aobvious
Micro mirror figure.
Fig. 3 shows the buckling resistant of the single-phase infusibility high-entropy alloy room temperature of W-V-Ta-Zr-Hf of the preparation of the embodiment of the present invention 2
Line.The intensity of material is significantly improved, and compression strength is 1439.4MPa, fracture elongation 8% at room temperature.
Specific embodiment
Technical solution of the present invention is described in further detail with specific embodiment with reference to the accompanying drawing.
Embodiment 1:
The single-phase infusibility high-entropy alloy of WVTaZrHf in the present embodiment, constituent element W, V, Ta, Zr, Hf, wherein each component is by original
Sub- percentage is constituted are as follows: W22.5%, V22.5%, Ta22.5%, Zr10%, Hf22.5%.
Particle Sizes are as follows: W Powder Particle Size is 2 μm, and V Powder Particle Size is 25 μm, and Ta Powder Particle Size is 25 μm, and Zr Powder Particle Size is 28
μm, Hf Powder Particle Size is 38 μm.
The preparation method of the single-phase infusibility high-entropy alloy of WVTaZrHf, includes the following steps: in the present embodiment
Step 1: mixed powder
Five kinds of metal powders of W, V, Ta, Zr, Hf are measured according to the ratio and is placed in mechanical mixture in barrel mixer and obtains W-V-Ta-
Zr-Hf composite powder；
Step 2: sintering
W-V-Ta-Zr-Hf composite powder is packed into graphite jig, then mold is put into discharge plasma sintering furnace, it is right
It is sintered stove evacuation, then 800 DEG C is warming up to 100 DEG C/min and keeps the temperature 10 minutes, control pressure is no more than 25MPa；Then with
100 DEG C/min is warming up to 1500 DEG C and keeps the temperature 5 minutes, and pressure is controlled in sintering and is no more than 50MPa, is down to room temperature after heat preservation,
Room temperature is down to get W-V-Ta-Zr-Hf high entropy alloy material is arrived with 100 DEG C/min after heat preservation.
The close-packed hexagonal structure that the crystal structure of high-entropy alloy is after sintering, tissue topography is more uniform, and relative density is reachable
99.1% or more of theoretical density, hardness and intensity with higher.Hardness mean value 581.2Hv is (micro- hard better than pure tungsten material
Spend 320~360Hv), the intensity of material is significantly improved, and compression strength is 1207.6MPa at room temperature.
Embodiment 2:
The single-phase infusibility high-entropy alloy of WVTaZrHf in the present embodiment, constituent element W, V, Ta, Zr, Hf, wherein each component is by original
Sub- percentage is constituted are as follows: W23%, V23%, Ta23%, Zr8%, Hf23%.
Particle Sizes are as follows: W Powder Particle Size is 2 μm, and V Powder Particle Size is 25 μm, and Ta Powder Particle Size is 25 μm, and Zr Powder Particle Size is 28
μm, Hf Powder Particle Size is 38 μm.
The preparation method of the single-phase infusibility high-entropy alloy of WVTaZrHf, includes the following steps: in the present embodiment
Step 1: mixed powder
Five kinds of metal powders of W, V, Ta, Zr, Hf are placed in mechanical mixture in barrel mixer according to a certain percentage and obtain W-
V-Ta-Zr-Hf composite powder；
Step 2: sintering
W-V-Ta-Zr-Hf composite granule is packed into graphite jig, then mold is put into discharge plasma sintering furnace, it is right
It is sintered stove evacuation, then 800 DEG C is warming up to 100 DEG C/min and keeps the temperature 10 minutes, control pressure is no more than 25MPa；Then with
100 DEG C/min is warming up to 1500 DEG C and keeps the temperature 5 minutes, and pressure is controlled in sintering and is no more than 50MPa, is down to room temperature after heat preservation,
Room temperature is down to get W-V-Ta-Zr-Hf high entropy alloy material is arrived with 100 DEG C/min after heat preservation.
The close-packed hexagonal structure that the crystal structure of high-entropy alloy is after sintering, even tissue, without obvious stomata, relative density
99.9% or more of accessibility theory density has high hardness and intensity.Hardness mean value 600.2Hv, it is (micro- better than pure tungsten material
320~360Hv of hardness), the intensity of material is significantly improved, and compression strength is 1439.4MPa at room temperature, and fracture elongation is
8%.
Embodiment 3:
The single-phase infusibility high-entropy alloy of WVTaZrHf in the present embodiment, constituent element W, V, Ta, Zr, Hf, wherein each component is by original
Sub- percentage is constituted are as follows: W23.5%, V23.5%, Ta23.5%, Zr6%, Hf23.5%.
Particle Sizes are as follows: W Powder Particle Size is 2 μm, and V Powder Particle Size is 25 μm, and Ta Powder Particle Size is 25 μm, and Zr Powder Particle Size is 28
μm, Hf Powder Particle Size is 38 μm.
The preparation method of the single-phase infusibility high-entropy alloy of WVTaZrHf, includes the following steps: in the present embodiment
Step 1: mixed powder
Five kinds of metal powders of W, V, Ta, Zr, Hf are placed in mechanical mixture in barrel mixer according to a certain percentage and obtain W-
V-Ta-Zr-Hf composite powder；
Step 2: sintering
W-V-Ta-Zr-Hf composite granule is packed into graphite jig, then mold is put into discharge plasma sintering furnace, it is right
It is sintered stove evacuation, then 800 DEG C is warming up to 100 DEG C/min and keeps the temperature 10 minutes, control pressure is no more than 25MPa；Then with
100 DEG C/min is warming up to 1500 DEG C and keeps the temperature 5 minutes, and pressure is controlled in sintering and is no more than 50MPa, is down to room temperature after heat preservation,
Room temperature is down to get W-V-Ta-Zr-Hf high entropy alloy material is arrived with 100 DEG C/min after heat preservation.
The close-packed hexagonal structure that the crystal structure of high-entropy alloy is after sintering organizes relatively uniform, coarse grains, without obvious
Stomata, 99.6% or more of relative density accessibility theory density, hardness and intensity with higher.Hardness mean value 576.3Hv, it is excellent
In pure tungsten material (320~360Hv of microhardness), the intensity of material is significantly improved, and compression strength is at room temperature
1327.3MPa。
Claims (4)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343932A (en) * | 2019-08-28 | 2019-10-18 | 合肥工业大学 | A kind of WVTaZrSc infusibility high-entropy alloy and preparation method thereof with high intensity |
| CN110538945A (en) * | 2019-09-19 | 2019-12-06 | 中国人民解放军陆军装甲兵学院 | Refractory high-entropy alloy stranded wire material, application and preparation method thereof |
| CN113652595A (en) * | 2021-08-23 | 2021-11-16 | 太原理工大学 | A kind of high-strength and high-toughness TiZrHfNbTaWx refractory high-entropy alloy and preparation method thereof |
| CN114941099A (en) * | 2022-05-26 | 2022-08-26 | 合肥工业大学 | A kind of high-strength and high-hardness W-Ta-V-Zr system refractory high-entropy alloy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950945A (en) * | 2016-06-29 | 2016-09-21 | 华南理工大学 | High-strength high-entropy alloy NbMoTaWVCr and preparation method thereof |
| US20170314097A1 (en) * | 2016-05-02 | 2017-11-02 | Korea Advanced Institute Of Science And Technology | High-strength and ultra heat-resistant high entropy alloy (hea) matrix composites and method of preparing the same |
| US20190024198A1 (en) * | 2017-07-19 | 2019-01-24 | The Industry & Academic Cooperation In Chungnam National University (Iac) | Precipitation Hardening High Entropy Alloy and Method of Manufacturing the Same |
| CN107096923B (en) * | 2017-04-28 | 2019-04-12 | 西安交通大学 | The preparation method of high-melting-point high-entropy alloy spherical powder based on laser gain material manufacture |
-
2019
- 2019-04-28 CN CN201910347837.6A patent/CN109898005B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170314097A1 (en) * | 2016-05-02 | 2017-11-02 | Korea Advanced Institute Of Science And Technology | High-strength and ultra heat-resistant high entropy alloy (hea) matrix composites and method of preparing the same |
| CN105950945A (en) * | 2016-06-29 | 2016-09-21 | 华南理工大学 | High-strength high-entropy alloy NbMoTaWVCr and preparation method thereof |
| CN107096923B (en) * | 2017-04-28 | 2019-04-12 | 西安交通大学 | The preparation method of high-melting-point high-entropy alloy spherical powder based on laser gain material manufacture |
| US20190024198A1 (en) * | 2017-07-19 | 2019-01-24 | The Industry & Academic Cooperation In Chungnam National University (Iac) | Precipitation Hardening High Entropy Alloy and Method of Manufacturing the Same |
Non-Patent Citations (1)
| Title |
|---|
| ZHIDONG HAN等: "Microstructure, phase stability and mechanical properties", 《PROGRESS IN NATURAL SCIENCE: MATERIALS INTERNATIONAL》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343932A (en) * | 2019-08-28 | 2019-10-18 | 合肥工业大学 | A kind of WVTaZrSc infusibility high-entropy alloy and preparation method thereof with high intensity |
| CN110538945A (en) * | 2019-09-19 | 2019-12-06 | 中国人民解放军陆军装甲兵学院 | Refractory high-entropy alloy stranded wire material, application and preparation method thereof |
| CN110538945B (en) * | 2019-09-19 | 2021-04-13 | 中国人民解放军陆军装甲兵学院 | Refractory high-entropy alloy stranded wire material, application and preparation method thereof |
| CN113652595A (en) * | 2021-08-23 | 2021-11-16 | 太原理工大学 | A kind of high-strength and high-toughness TiZrHfNbTaWx refractory high-entropy alloy and preparation method thereof |
| CN114941099A (en) * | 2022-05-26 | 2022-08-26 | 合肥工业大学 | A kind of high-strength and high-hardness W-Ta-V-Zr system refractory high-entropy alloy and preparation method thereof |
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