CN109161725A - A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying - Google Patents
A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying Download PDFInfo
- Publication number
- CN109161725A CN109161725A CN201811048247.5A CN201811048247A CN109161725A CN 109161725 A CN109161725 A CN 109161725A CN 201811048247 A CN201811048247 A CN 201811048247A CN 109161725 A CN109161725 A CN 109161725A
- Authority
- CN
- China
- Prior art keywords
- powder
- tnzs
- ball milling
- mixed
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000956 alloy Substances 0.000 title claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 17
- 238000005275 alloying Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 27
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 20
- 239000011812 mixed powder Substances 0.000 claims abstract description 16
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 14
- 238000000713 high-energy ball milling Methods 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 229910052718 tin Inorganic materials 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims description 13
- 238000005245 sintering Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 238000000498 ball milling Methods 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000010936 titanium Substances 0.000 abstract description 34
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 18
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000001272 pressureless sintering Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000005551 mechanical alloying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910007739 Sn5Ti6 Inorganic materials 0.000 description 1
- 229910005644 SnTi Inorganic materials 0.000 description 1
- 229910005638 SnTi3 Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical class [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
- C22C1/0458—Alloys based on titanium, zirconium or hafnium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
一种Co合金化的Ti‑24Nb‑4Zr‑7.9Sn‑5Co合金的制备方法，其特征在于：它包括以下步骤：首先，它以Ti、Nb、Zr、Sn、Co粉末为原材料经高能球磨制备成混合粉末制备。然后，将混合粉末进行常规模压处理。最后，将模压所得压块进行真空无压烧结处理，获得硬度、弹性磨高，摩擦系数小，抗腐蚀性能高，生物相容性较好的5wt.％Co/TNZS钛基材料。本发明很好的解决了TNZS合金存在的问题，并且制备工艺简单，经济性优良。
A preparation method of Co-alloyed Ti-24Nb-4Zr-7.9Sn-5Co alloy, characterized in that: it comprises the following steps: firstly, it is prepared by high-energy ball milling with Ti, Nb, Zr, Sn, Co powders as raw materials Prepared as a mixed powder. Then, the mixed powder is subjected to conventional pressure treatment. Finally, vacuum pressureless sintering is performed on the compact obtained by molding to obtain a 5wt.%Co/TNZS titanium-based material with high hardness, elastic wear, low friction coefficient, high corrosion resistance and good biocompatibility. The invention solves the problems existing in the TNZS alloy well, and has simple preparation process and excellent economy.
Description
Technical field
The present invention relates to field of metal preparation, especially a kind of preparation method of TNZS sill, specifically
A kind of higher hardness, elasticity modulus；Lower coefficient of friction；Strong corrosion resistance；The more preferably titanium-based material of biocompatibility
The preparation method of material.
Background technique
TNZS alloy (Ti-24Nb-4Zr-7.9Sn) not only has the spies such as lower elasticity modulus, excellent corrosion resistance
Property, and also there is excellent processing forming and corresponding mechanical property, these advantages become it smoothly nowadays to cure
With one of the preferred material of implant.But bio-medical TNZS alloy, however it remains elasticity modulus is high, and friction factor is high, rubs
Many defects such as polishing machine is poor and biocompatibility is poor are wiped, its extensive use on clinical medicine is seriously limited.
Co can accelerate the diffusion rate of alloy internal particle, improve whole densification degree, subtract sample internal flaw
Less, intensity increases, and then improves the microhardness of material, and the elasticity modulus of Co itself is higher, to the elasticity for promoting alloy
Modulus has certain facilitation.Co can reduce its corrosion current density, thus to a certain extent improve material in
Corrosion resistance, therefore Elemental redistribution, the organizational composition of material are changed so as to improve titanium-based material by addition Co metallic element
The overall performance of material value with higher and important meaning.
As far as the applicant is aware, there has been no add Co metallic element in TNZS titanium base material and use powder so far
Metallurgy method prepares the report of 5wt.%Co/TNZS.
Summary of the invention
The purpose of the present invention is for existing TNZS alloy, there are elasticity modulus height, friction factor height, friction and abrasion
The problems such as energy difference and poor biocompatibility, invents a kind of Co using " high-energy ball milling-compression molding-vacuum non-pressure sintering "
The preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of alloying, it prepares 5wt.%Co/TNZS by addition Co powder.Institute
The 5wt.%Co/TNZS of acquisition have higher hardness, elasticity modulus, lesser coefficient of friction, stronger corrosion resistance, preferably
Biocompatibility, and preparation method is easy to operate, easy realization, economical.
The technical scheme is that
A kind of preparation method of Ti-24Nb-4Zr-7.9Sn (5wt.%Co/TNZS) alloy of Co alloying, it is characterized in that
It the following steps are included:
Step 1, prepared by high-energy ball milling mixed-powder: first preparing 5wt.%Co/TNZS mixed-powder after high-energy ball milling, sets
In 60 DEG C of heat preservation 4h drying, sieving in vacuum oven；
Step 2, the method for conventional molding processing: mixed-powder prepared by step 1 is manufactured in Nantong forging equipment factory
(pressing pressure 18Mpa, pressure maintaining 3min) is pressed to get required briquetting with a thickness of the left side 4mm in YB32-100 hydraulic press
It is right；
Step 3, vacuum non-pressure sintering is handled: the briquetting of step 2 compression moulding being placed on WZS-20 type double-chamber vacuum and is burnt
Freezing of a furnace carries out pressureless sintering.Wherein vacuum degree 1 × 10-1Pa, 10 DEG C/min of heating rate.Sintering process is first pre-burning to 600 ±
10 DEG C of heat preservation 2h are warming up to 800 ± 10 DEG C of heat preservation 2h, then are warming up to 1000 ± 10 DEG C of heat preservation 2h, are finally warming up to 1250 ± 10
DEG C heat preservation 2h, subsequent furnace cooling.
The parameter of high-energy ball milling are as follows: planetary ball mill, ball material mass ratio are 10:1,400r/min ball milling 72h, ball milling
50min shuts down 10min.
The mass percent of 5wt.%Co/TNZS mixed-powder each component is respectively Ti powder: 59.1%, Nb powder: 24%, Zr
Powder: 4%, Sn powder: 7.9%, Co powder: 5%.
The beneficial effects of the present invention are:
(1) PM technique that the present invention is combined by " high-energy ball milling-routine molding-vacuum non-pressure sintering ", is obtained
Distributed components TNZS metal alkyl materials, for titanium provide one kind can industrialized production preparation method.
(2) hardness of 5wt.%Co/TNZS titanium base material prepared by the present invention is that 1045.6HV ratio TNZS (560.1HV) is mentioned
It is high by 86.7%；Elasticity modulus is that 73.69Gpa ratio TNZS (45.21Gpa) improves about 63%；Coefficient of friction is 0.4913 ratio
TNZS (0.5035) reduces 2.4%；Corrosion potentials are -0.71Vm-226.8% has been improved than TNZS (- 0.97V)；Cell
Proliferation is promoted obvious.
(3) present invention is applicable not only to the preparation of TNZS base titanium alloy, applies also for the preparation of various model titaniums.
(4) easy to operate, the easy realization of 5wt.%Co/TNZS alloy provided by the invention and preparation method thereof, economy are excellent
It is good.
The present invention is made using the PM technique that high-energy ball milling twice is combined with routine molding, vacuum non-pressure sintering
Standby 5wt.%Co/TNZS titanium base material, increases substantially the comprehensive performance of TNZS sill.
Detailed description of the invention
Fig. 1 (a) is the XRD diffraction pattern of TNZS powder after ball milling in comparative example of the present invention.
Fig. 1 (b) is the XRD diffraction pattern of 5wt.%Co/TNZS powder after ball milling of the embodiment of the present invention.
Fig. 2 (a) is the XRD diffraction pattern of TNZS titanium base material after being sintered in comparative example of the present invention.
Fig. 2 (b) is the XRD diffraction pattern of 5wt.%Co/TNZS titanium base material after being sintered in the embodiment of the present invention.
Fig. 3 is TNZS titanium base material, 5wt.%Co/TNZS titanium base material elasticity modulus after being sintered in comparative example of the present invention
Figure.
Fig. 4 is TNZS titanium base material, the anticorrosive voltage of 5wt.%Co/TNZS titanium base material after being sintered in comparative example of the present invention
Figure.
Fig. 5 (a) is TNZS titanium base material coefficient of friction figure after being sintered in comparative example of the present invention
Fig. 5 (b) is the coefficient of friction figure of 5wt.%Co/TNZS titanium base material after being sintered in the embodiment of the present invention.
Fig. 6 (a) is the cell attachment SEM figure of TNZS titanium base material after being sintered in comparative example of the present invention.
Fig. 6 (b) is the cell attachment SEM figure of 5wt.%Co/TNZS titanium base material after being sintered in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention is described further.
Embodiment 1.
A kind of preparation method of 5wt.%Co/TNZS titanium base material, comprising the following steps:
Step 1, prepared by high-energy ball milling mixed-powder: preparing 5wt.%Co/TNZS mixed-powder (the quality percentage of each component
Than being respectively Ti powder: 59.1%, Nb powder: 24%, Zr powder: 4%, Sn powder: 7.9%, Co powder: 5%) through high-energy ball milling (planet ball
Grinding machine, ball material mass ratio are 10:1, and 400r/min ball milling 72h, ball milling 50min shut down 10min) after, it is placed in vacuum oven
4h is kept the temperature under the conditions of 60 DEG C, is then cooled to room temperature taking-up to it, and crossing 300 meshes can be obtained required composite powder.
Step 2, the method for conventional molding processing: mixed-powder prepared by step 1 is manufactured in Nantong forging equipment factory
(pressing pressure 18Mpa, pressure maintaining 3min) is pressed to get required briquetting (diameter φ in YB32-100 hydraulic press
30mm, with a thickness of 4mm or so)；
Step 3, vacuum non-pressure sintering is handled: the briquetting of step 2 compression moulding being placed on WZS-20 type double-chamber vacuum and is burnt
Freezing of a furnace carries out pressureless sintering.Wherein vacuum degree 1 × 10-1Pa, 10 DEG C/min of heating rate.Sintering process is first pre-burning to 600 ±
10 DEG C of heat preservation 2h are warming up to 800 ± 10 DEG C of heat preservation 2h, then are warming up to 1000 ± 10 DEG C of heat preservation 2h, are finally warming up to 1250 ± 10
DEG C heat preservation 2h, subsequent furnace cooling.
Obvious using 5wt.%Co/TNZS mixed-powder mechanical alloying phenomenon made from above-mentioned steps, Fig. 1 (b) is this
The XRD diffracting spectrum of resulting 5wt.%Co/TNZS powder after embodiment high-energy ball milling, through analyzing, containing α-Ti (Nb, Zr),
Metallic compound (Sn between β-Ti (Nb, Zr), Ti-Sn3Ti5、Sn5Ti6、Sn3Ti2) and simple substance Sn, additionally contain CoTi2,
And there is widthization in diffraction maximum, illustrates that composite granule has occurred a degree of mechanical alloying and reaches after high-energy ball milling
The effect of powder fining.Fig. 2 (b) is the XRD diffracting spectrum of the 5wt.%Co/TNZS alloy obtained after vacuum non-pressure sintering,
It analyzes, α-Ti (Nb, Zr), β-Ti (Nb, Zr), SnTi is contained in alloy3, Sn3Ti5In addition phase is known by XRD spectrum
Co is mainly with CoTi in 5wt.%Co/TNZS2Exist with the form of CoTi.
Comparative example.
The preparation method of TNZS:
This comparative example and embodiment 1 are similar, the difference is that not adding Co powder, the mass percent of each component is respectively
Ti powder: 64.1%, Nb powder: 24%, Zr powder: 4%, Sn powder: 7.9%)
Fig. 1 (a) is the XRD diffracting spectrum for the TNZS powder that high energy is asked after mill, predominantly detects α-Ti (Nb, Zr), β-Ti
(Nb, Zr) and simple substance Sn these three titanium-silicon compounds；Fig. 2 (a) is the XRD diffraction pattern of TNZS alloy after vacuum non-pressure sintering
Spectrum, predominantly detects α-Ti (Nb, Zr), β-Ti (Nb, Zr), SnTi3, Sn3Ti5Phase.
Embodiment and comparative example comparison are found, as seen in figures 3-6, addition metal nano Co powder carries out after alloying
The comprehensive performance of 5wt.%Co/TNZS alloy obtained is better than TNZS, wherein the hardness of 5wt.%Co/TNZS alloy improves
86.7%；Elasticity modulus improves about 63%；Coefficient of friction reduces 2.4%；Corrosion current reduces 96.9%；The increasing of cell
It is obvious to grow promotion.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (4)
1. a kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying, it is characterized in that it is mixed by high-energy ball milling
Powder preparation, conventional molding processing and vacuum non-pressure sintering composition；
The high-energy ball milling mixed-powder preparation refers to a certain proportion of Ti, Nb, Zr, Sn, Co powder after high-energy ball milling
It is placed in drying in vacuum oven, sieving obtains 5wt.%Co/TNZS mixed-powder；
The conventional molding processing, which refers to, is placed in mixed-powder in mold by certain mass, compression moulding on a hydraulic press；
The vacuum non-pressure sintering, which refers to, is placed on compression molding gained briquetting in vacuum sintering furnace, carries out burning without pressure to it
Knot；
The mass percent of each component is respectively Ti powder in the 5wt.%Co/TNZS mixed-powder: 59.1%, Nb powder:
24%, Zr powder: 4%, Sn powder: 7.9%, Co powder: 5%.
2. according to the method described in claim 1, it is characterized in that the equipment of 5wt.%Co/TNZS mixed-powder high-energy ball milling is
Planetary ball mill, ball milling parameter: ball material quality is to shut down 10min than 10:1,400r/min ball milling 72h, ball milling 50min.
3. according to the method described in claim 1, it is characterized in that mixed-powder after the described conventional molding with a thickness of
4mm；Pressing pressure is 18MPa, pressure maintaining 3min.
4. according to the method described in claim 1, it is characterized in that the vacuum non-pressure sintering parameter are as follows: vacuum degree 1 × 10- 1Pa, 10 DEG C/min of heating rate；It first burns to 600 ± 10 DEG C of heat preservation 2h, is warming up to 800 ± 10 DEG C of heat preservation 2h, then be warming up to 1000
± 10 DEG C of heat preservation 2h are finally warming up to 1250 ± 10 DEG C of heat preservation 2h, subsequent furnace cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811048247.5A CN109161725A (en) | 2018-09-10 | 2018-09-10 | A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811048247.5A CN109161725A (en) | 2018-09-10 | 2018-09-10 | A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109161725A true CN109161725A (en) | 2019-01-08 |
Family
ID=64894470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811048247.5A Pending CN109161725A (en) | 2018-09-10 | 2018-09-10 | A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109161725A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486371A (en) * | 2000-12-20 | 2004-03-31 | 株式会社丰田中央研究所 | Titanium alloy with high elastic deformation ability and its manufacturing method |
| CN101078067A (en) * | 2007-07-02 | 2007-11-28 | 北京科技大学 | Method for self-spreading high-temperature synthesis of TiCo porous material |
| CN104232995A (en) * | 2014-09-23 | 2014-12-24 | 华南理工大学 | High-toughness ultrafine-grain composite titanium alloy and application and preparation method thereof |
| CN105274375A (en) * | 2015-10-29 | 2016-01-27 | 江苏大学 | Method for compounding and preparing high-elastic-modulus Ti-based material based on nano ceramic particles |
-
2018
- 2018-09-10 CN CN201811048247.5A patent/CN109161725A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486371A (en) * | 2000-12-20 | 2004-03-31 | 株式会社丰田中央研究所 | Titanium alloy with high elastic deformation ability and its manufacturing method |
| CN101078067A (en) * | 2007-07-02 | 2007-11-28 | 北京科技大学 | Method for self-spreading high-temperature synthesis of TiCo porous material |
| CN104232995A (en) * | 2014-09-23 | 2014-12-24 | 华南理工大学 | High-toughness ultrafine-grain composite titanium alloy and application and preparation method thereof |
| CN105274375A (en) * | 2015-10-29 | 2016-01-27 | 江苏大学 | Method for compounding and preparing high-elastic-modulus Ti-based material based on nano ceramic particles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105274375B (en) | Based on the compound method for preparing high elastic modulus Ti sills of nano-ceramic particle | |
| CN102134660B (en) | Functionally gradient hard alloy with cubic phase-rich surface and preparation method thereof | |
| CN103924144B (en) | A kind of soap-free emulsion polymeization phase ultrafine WC hard alloy preparation method | |
| CN110423930A (en) | A kind of high entropy ceramic-metal composite of Ultra-fine Grained and preparation method thereof | |
| CN104313391B (en) | A kind of Ti-Mg alloy material and its preparation method and application | |
| CN102312129B (en) | Method for preparing titanium niobium zirconium tin biomedical titanium alloys by discharge plasma sintering | |
| CN105522152B (en) | A kind of method of 3D printing rare earth titanium alloy material | |
| CN100554457C (en) | The method of self-spreading high-temperature synthesis of TiCo porous material | |
| CN110592426B (en) | High-hardness high-temperature-resistant TiC + TiB reinforced titanium-based composite material generated by solid-phase in-situ reaction and preparation method thereof | |
| CN105648270B (en) | Rare earth titanium alloy material prepared by a kind of 3D printing | |
| CN105603255B (en) | A kind of 3D printing prepares medical titanium alloy material | |
| CN102133641B (en) | Powder metallurgy method of Ti-6Al-4V alloy | |
| CN105950983A (en) | Production method of powder metallurgy gear | |
| CN110373561A (en) | A kind of method that power forging prepares high-compactness Fine Grain Ti Alloy | |
| CN108441706A (en) | A kind of high-entropy alloy enhancing nickel aluminium composite material and preparation method thereof | |
| CN111893348B (en) | A kind of preparation method of nickel-titanium alloy material | |
| CN104894420B (en) | A kind of preparation method of titanium niobium zirconium base calcium pyrophosphate Biocomposite material | |
| CN106119604B (en) | A kind of Y2O3Ti 8Si 1.4Zr alloys of alloying and preparation method thereof | |
| CN109182811A (en) | A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Ag alloying | |
| CN106244852B (en) | A kind of Ti 8Si alloys of Zr alloyings and preparation method thereof | |
| CN104878244B (en) | A kind of titanium almag target and preparation method thereof | |
| CN109161725A (en) | A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Co alloying | |
| CN109055818A (en) | A kind of preparation method of the Ti-24Nb-4Zr-7.9Sn alloy of Cu alloying | |
| WO2022105438A1 (en) | Tih2-based preparation method for ti-nb-sn bone repair alloy by powder metallurgy | |
| CN116356173A (en) | High-strength high-entropy alloy binding phase nanoscale hard alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190108 |