CN107671278A - It is single-phase to contain high entropy corrosion resisting alloy powder of Mg and preparation method thereof - Google Patents
It is single-phase to contain high entropy corrosion resisting alloy powder of Mg and preparation method thereof Download PDFInfo
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- CN107671278A CN107671278A CN201710934308.7A CN201710934308A CN107671278A CN 107671278 A CN107671278 A CN 107671278A CN 201710934308 A CN201710934308 A CN 201710934308A CN 107671278 A CN107671278 A CN 107671278A
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- 239000000843 powder Substances 0.000 title claims abstract description 50
- 239000001997 corrosion-resisting alloy Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 41
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 12
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical group CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000498 ball milling Methods 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 238000005551 mechanical alloying Methods 0.000 claims abstract description 4
- 238000001238 wet grinding Methods 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 abstract description 37
- 230000007797 corrosion Effects 0.000 abstract description 36
- 239000000203 mixture Substances 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 description 57
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 28
- 239000000243 solution Substances 0.000 description 28
- 239000011780 sodium chloride Substances 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 238000006424 Flood reaction Methods 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B22F1/0003—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/042—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling using a particular milling fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
It is single-phase containing high entropy corrosion resisting alloy dusty materials of Mg and preparation method thereof the invention discloses one kind, belong to corrosion resisting alloy technical field.The chemical formula of the corrosion resisting alloy powder is MgxTiAlFeNiCr (x=0.6~1.4).Metal dust raw material, wherein Mg powder purity >=99.5% are weighed by chemical formula, remaining metal dust >=99%, the mesh of all raw material powder particle sizes >=200.The raw material claimed is poured into stainless cylinder of steel, mechanical alloying 80~120h of wet-milling, ratio of grinding media to material 20:1, controlling agent is normal heptane, and drum's speed of rotation is 300~500rpm.After ball milling terminates, removal normal heptane is vacuumized in glove box, is obtained by the high-entropy alloy powder of single FCC phase compositions.This method preparation technology is simple, efficient, yield is high, pollution-free, and obtained high-entropy alloy powder has the advantages of price is low, density is small and corrosion resistance is excellent.
Description
Technical field
The invention belongs to corrosion resisting alloy technical field, and in particular to a kind of single-phase high entropy corrosion resisting alloy powder containing Mg
Material system and preparation method thereof.
Background technology
High-entropy alloy is to develop very swift and violent a kind of alloy material in recent years, due to its can produce sluggish diffusion effect,
Distortion of lattice effect and " cocktail " effect grade height entropic effect, so as to cause a series of excellent specific property, such as：High intensity and hard
Decay resistance that degree, excellent anti-wear performance, resistance to elevated temperatures are become reconciled etc. [A.V.Kuznetsova,
D.G.Shaysultanov,N.D.Stepanov,G.A.Salishchev,O.N.Senkov,Materials Science and
Engineering A,533(2012),107.].Nearest people have developed a series of high entropy corrosion resisting alloy, such as：
AlCoCrFeNi2.1, CuCoCrNiFe, CuYZrTiHf, CoCrFeNiW, CuZrAlTiNi, AlCoCrFeTi and TiNbHfZrTi
Deng.These alloys have simple body-centered cubic (BCC) or face-centered cubic (FCC) crystal structure.Wherein, some alloys are shown
The corrosion potential higher than 304 stainless steels, lower corrosion current speed；Such as AlCoCrFeNi2.1High-entropy alloy powder is 10%
HCl solution and corrosion potential in 3.5wt% (weight ratio) NaCl solution and corrosion electric current density be respectively -0.6242, -
1.2736V with 0.2797,0.5560A/cm2, and 304L powder of stainless steel is in 10%HCl solution and 3.5wt%NaCl solution
Corrosion potential and corrosion electric current density be respectively -0.7280, -1.3224V and 0.6300,0.58260A/cm2, illustrate ratio
The more excellent decay resistance of stainless steel [P.P.Ding, A.Q.Mao, X.Zhang, X.Jin, B.Wang, M.Liu, Journal of
Alloys and Compounds,721(2017),609.]。
Current background technology shows that excellent high entropy corrosion resisting alloy has following characteristics：(1) dephasign is fewer in alloy
It is better, preferably by single simple BCC or FCC configuration phase composition；(2) the multicomponent element of alloy is transiting group metal elements,
Wherein most elements are heavy metal and yttrium；(3) the multicomponent element of alloy itself is BCC or FCC configuration.This
A little features are determined under existing preparation method, and the composition range for obtaining the high-entropy alloy of phase structure is narrower, preparation technology
It is difficult to control.Particularly, the constituent element of these high-entropy alloys is heavy metal and rare metal, add material weight and cost,
Reduce specific strength, the specific stiffness of material.Magnesium (Mg) is the eighth-largest element of earth reserves, have density it is small, it is cheap, than strong
Spend the advantages that high；In recent years, Mg and its alloy are widely applied to the fields such as engineering device, Aero-Space and biologic medical.
However, the shortcomings of Mg chemism is high, corrosion-resistant limits its application in more wide neighborhood.Although high-entropy alloy shows
Good decay resistance is shown；But because Mg crystal structure is more complicated close-packed hexagonal, the original with BCC or FCC configuration
Sub- arrangement mode differs greatly；In addition, the atomic radius of Mg elements and transition element differs greatly, it is former according to the formation of solid solution
Then, the high-entropy alloy prepared containing Mg's and with simple BCC or FCC configuration is very difficult.Therefore, there is presently no develop one
High entropy Mg containing alloy system of the kind with excellent corrosion resistance.
The content of the invention
For overcome the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of wide single-phase of composition range
Containing the high entropy corrosion resisting alloy powder systems of Mg, the alloy can use simple mechanical alloying ball grinding method to prepare, and be desirably to obtain
Alloy there is more excellent decay resistance, be with a wide range of applications in corrosion resistant alloy powder field.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
(1) present invention firstly provides a kind of hexa-atomic MgxThe single-phase high corrosion-resistant conjunctions of entropy of TiAlFeNiCr (x=0.6~1.4)
The material system at bronze end, its composition range are：It is 10.7~21.9% that Mg, which accounts for alloy atom percentage, Mg atomic ratios in alloy
After it is determined that, the dosage such as Ti, Al, Fe, Ni and Cr element accounts for obtain remaining atomic percent.
(2)MgxThe preparation of the single-phase high entropy corrosion resisting alloy powder of TiAlFeNiCr (x=0.6~1.4)：As described in (1)
Atomic percent weighs metal dust raw material respectively, weighs 30~50 grams altogether；Wherein the purity of Mg powder is not less than 99.5%, remaining gold
Belong to powder purity and be not less than 99%, all raw material powder particle sizes are not less than 200 mesh.The feed metal powder weighed by proportioning is fallen
Enter in stainless steel jar mill, by ratio of grinding media to material 20:1 adds stainless steel abrading-ball, is subsequently poured into normal heptane (purity is more than 99%) and floods
Ball material.Ball grinder is sealed, is put in 80~120h of mechanical alloying wet-milling on ball mill, the rotating speed of ball mill for 300~
500rpm, per 30min rotatings alternately once.After ball milling terminates, ball milling cover is removed in glove box and vacuumizes 1h, is obtained
The single-phase high entropy corrosion resisting alloy powder containing Mg.The powder is applied or sold directly as a kind of corrosion resistant material.
Compared with prior art, the present invention has following technique effect：
1st, the invention is successfully prepared a kind of hexa-atomic Mg firstxThe single-phase high entropy corrosion resistants of TiAlFeNiCr (x=0.6~1.4)
Lose alloy powder.Its composition is：It is 10.7~21.9% that Mg, which accounts for alloy atom percentage, after Mg atomic ratios determine in alloy, Ti,
The dosage such as Al, Fe, Ni and Cr element account for obtain remaining atomic percent；In this chemical composition ranges, high-entropy alloy ensure that
By single FCC phase compositions, it is achieved thereby that the application in the corrosion-resistant field of the high-entropy alloy containing Mg.
2nd, the inexpensive Mg elements of lightweight are incorporated into high entropy alloy material system by the invention, and Mg element proportions are big
(atomic percent be 10.7~21.9%), makes the alloy system of preparation have that density is small, cheap, application expands
The beneficial effect of (in addition to traditional high entropy corrosion resistant alloy application field, can be applied to anti-corrosion Mg based alloys and its coatings art).
3rd, the present invention is simple, easily-controllable, and small investment of production equipment, production process is pollution-free, and it is big to be easy to industrialization
Large-scale production；The alloy material system of preparation has excellent decay resistance.Compared with 304L powder of stainless steel, high entropy closes
Corrosion potential of the bronze end in 10%HCl solution and 3.5wt%NaCl solution is higher, the corruption in 3.5wt%NaCl solution
Erosion current density significantly reduces, small 5~6 orders of magnitude of etch ratio 304L powder of stainless steel, has very excellent resistance to
The characteristic of seawater corrosion.
Brief description of the drawings
Fig. 1 is containing the high entropy corrosion resisting alloy x-ray diffractogram of powder of Mg；
Wherein：(a) it is Mg0.6The X-ray diffractogram of the high entropy corrosion resisting alloy powder of TiAlFeNiCr；(b) it is
Mg1.0The X-ray diffractogram of the high entropy corrosion resisting alloy powder of TiAlFeNiCr；(c) it is Mg1.4The corrosion-resistant conjunction of the high entropys of TiAlFeNiCr
The X-ray diffractogram at bronze end.
Fig. 2 is polarization curve of the single-phase high entropy corrosion resisting alloy containing Mg in 3.5wt.%NaCl solution；
Wherein：(a) it is Mg0.6Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 3.5wt.%NaCl solution；
(b) it is Mg1.0Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 3.5wt.%NaCl solution；(c) it is
Mg1.4Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 3.5wt.%NaCl solution.
Fig. 3 is polarization curve of the single-phase high entropy corrosion resisting alloy containing Mg in 10wt.%HCl solution；
Wherein：(a) it is Mg0.6Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 10wt.%HCl solution；
(b) it is Mg1.0Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 10wt.%HCl solution；(c) it is
Mg1.4Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 10wt.%HCl solution.
Embodiment
In order to further appreciate that the technology contents of the present invention, it is made further below in conjunction with the drawings and specific embodiments
Description, but the present invention is not limited to following embodiments.
Embodiment 1
By Mg0.6TiAlFeNiCr composition weigh respectively Mg (mesh of granularity 200, purity 99.5%), Ti, Al, Fe, Ni and
Totally 40 grams of Cr powder (mesh of granularity 200, purity 99%).The elemental metals powder weighed is put into stainless steel jar mill, by ball
Expect ratio 20:1 adds stainless steel abrading-ball, is subsequently poured into normal heptane (purity is more than 99%) and floods ball and material, seals ball grinder lid.
Ball grinder is placed in wet ball grinding 90h in ball mill, drum's speed of rotation 400rpm.After ball milling terminates, taken out in glove box true
Empty 1h removes normal heptane, obtains by the Mg of single FCC configuration phase composition0.6The high entropy corrosion resistant alloy powder of TiAlFeNiCr is (see Fig. 1
(a)：Mg0.6The X-ray diffractogram of the high entropy corrosion resisting alloy powder of TiAlFeNiCr).Mg0.6The high entropy corrosion resistant alloys of TiAlFeNiCr
Powder has good decay resistance：Its difference of corrosion potential and corrosion electric current density in 3.5wt.%NaCl solution
For -0.25V and 8.96 × 10-6A/cm2(see Fig. 2 (a)：Mg0.6The high entropy corrosion resisting alloys of TiAlFeNiCr are in 3.5wt.%NaCl
Polarization curve in solution), corrosion potential and corrosion electric current density in 10wt.%HCl solution be respectively -0.39V and
0.57A/cm2(see Fig. 3 (a)：Mg0.6Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 10wt.%HCl solution).
Embodiment 2
By Mg1.0TiAlFeNiCr composition weigh respectively Mg (mesh of granularity 200, purity 99.5%), Ti, Al, Fe, Ni and
Totally 40 grams of Cr powder (mesh of granularity 200, purity 99%).The elemental metals powder weighed is put into stainless steel jar mill, by ball
Expect ratio 20:1 adds stainless steel abrading-ball, is subsequently poured into normal heptane (purity is more than 99%) and floods ball and material, seals ball grinder lid.
Ball grinder is placed in wet ball grinding 90h in ball mill, drum's speed of rotation 400rpm.After ball milling terminates, taken out in glove box true
Empty 1h removes normal heptane, obtains by the Mg of single FCC configuration phase composition1.0The high entropy corrosion resistant alloy powder of TiAlFeNiCr is (see Fig. 1
(b)：Mg1.0The X-ray diffractogram of the high entropy corrosion resisting alloy powder of TiAlFeNiCr).Mg1.0The high entropy corrosion resistant alloys of TiAlFeNiCr
Powder has good decay resistance：Its difference of corrosion potential and corrosion electric current density in 3.5wt.%NaCl solution
For -0.59V and 1.70 × 10-5A/cm2(see Fig. 2 (b)：Mg1.0The high entropy corrosion resisting alloys of TiAlFeNiCr are in 3.5wt.%NaCl
Polarization curve in solution), corrosion potential and corrosion electric current density in 10wt.%HCl solution be respectively -0.44V and
0.55A/cm2(see Fig. 3 (b)：Mg1.0Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 10wt.%HCl solution).
Embodiment 3
By Mg1.4TiAlFeNiCr composition weigh respectively Mg (mesh of granularity 200, purity 99.5%), Ti, Al, Fe, Ni and
Totally 40 grams of Cr powder (mesh of granularity 200, purity 99%).The elemental metals powder weighed is put into stainless steel jar mill, by ball
Expect ratio 20:1 adds stainless steel abrading-ball, is subsequently poured into normal heptane (purity is more than 99%) and floods ball and material, seals ball grinder lid.
Ball grinder is placed in wet ball grinding 90h in ball mill, drum's speed of rotation 400rpm.After ball milling terminates, taken out in glove box true
Empty 1h removes normal heptane, obtains by the Mg of single FCC configuration phase composition1.4The high entropy corrosion resistant alloy powder of TiAlFeNiCr is (see Fig. 1
(c)：Mg1.4The X-ray diffractogram of the high entropy corrosion resisting alloy powder of TiAlFeNiCr).Mg1.4The high entropy corrosion resistant alloys of TiAlFeNiCr
Powder has good decay resistance：Its difference of corrosion potential and corrosion electric current density in 3.5wt.%NaCl solution
It is -0.80V and 1.25 × 10-5A/cm2 (see Fig. 2 (c)：Mg1.4The high entropy corrosion resisting alloys of TiAlFeNiCr are in 3.5wt.%NaCl
Polarization curve in solution), corrosion potential and corrosion electric current density in 10wt.%HCl solution be respectively -0.45V and
0.58A/cm2 is (see Fig. 3 (c)：Mg1.4Polarization curve of the high entropy corrosion resisting alloys of TiAlFeNiCr in 10wt.%HCl solution).
Claims (2)
1. a kind of single-phase high entropy corrosion resisting alloy powder containing Mg, it is characterised in that the molecular formula of the alloy powder is
MgxTiAlFeNiCr, wherein：X=0.6~1.4.
2. the preparation method of the single-phase high entropy corrosion resisting alloy powder containing Mg as claimed in claim 1, it is characterised in that including as follows
Step：
(1) feed metal powder is weighed by the alloy atom percentage in alloy powder molecular formula；Wherein：The purity of Mg powder is not low
In 99.5%, remaining feed metal powder purity is not less than 99%, and all feed metal powder sizes are not less than 200 mesh；
(2) the feed metal powder weighed is poured into stainless steel jar mill, by ratio of grinding media to material 20:1 adds stainless steel abrading-ball, then
Pour into normal heptane and flood ball material；
(3) 80~120h of mechanical alloying wet-milling on ball mill is put in after ball grinder is sealed；The rotating speed of the ball mill is 300
~500rpm, per 30min rotatings alternately once；
(4) after ball milling terminates, ball milling cover is removed in glove box and is vacuumized, obtain the single-phase high entropy corrosion resisting alloy powder containing Mg
End.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109108273A (en) * | 2018-10-11 | 2019-01-01 | 中国人民解放军国防科技大学 | Preparation method of NbZrTiTa refractory high-entropy alloy powder and NbZrTiTa refractory high-entropy alloy powder |
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Cited By (1)
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|---|---|---|---|---|
| CN109108273A (en) * | 2018-10-11 | 2019-01-01 | 中国人民解放军国防科技大学 | Preparation method of NbZrTiTa refractory high-entropy alloy powder and NbZrTiTa refractory high-entropy alloy powder |
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