CN106119742B - A kind of titanium carbide crystal whisker toughened magnesium alloy bio-medical material of titanium oxide - Google Patents
A kind of titanium carbide crystal whisker toughened magnesium alloy bio-medical material of titanium oxide Download PDFInfo
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- CN106119742B CN106119742B CN201610482541.1A CN201610482541A CN106119742B CN 106119742 B CN106119742 B CN 106119742B CN 201610482541 A CN201610482541 A CN 201610482541A CN 106119742 B CN106119742 B CN 106119742B
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 63
- 239000013078 crystal Substances 0.000 title claims abstract description 40
- 239000003519 biomedical and dental material Substances 0.000 title claims abstract description 23
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims abstract 4
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 title abstract 4
- BAQNULZQXCKSQW-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[Ti+4].[Ti+4] BAQNULZQXCKSQW-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 238000007872 degassing Methods 0.000 claims abstract description 5
- 238000007731 hot pressing Methods 0.000 claims abstract description 5
- 239000011812 mixed powder Substances 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000470 constituent Substances 0.000 claims abstract description 3
- 238000005056 compaction Methods 0.000 claims abstract 2
- 239000011777 magnesium Substances 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052779 Neodymium Inorganic materials 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 229910000480 nickel oxide Inorganic materials 0.000 abstract 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 abstract 2
- 210000000988 bone and bone Anatomy 0.000 description 10
- 239000011572 manganese Substances 0.000 description 8
- 239000007943 implant Substances 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 229910001069 Ti alloy Inorganic materials 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000012567 medical material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 206010065687 Bone loss Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007789 gas Substances 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
- 238000002513 implantation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000012890 simulated body fluid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/06—Titanium or titanium alloys
-
- 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
- C22C49/04—Light metals
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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
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Inorganic Chemistry (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention belongs to the titanium carbide crystal whisker toughened magnesium alloy bio-medical material of biomedical materials field, particularly nickel oxide.By magnesium alloy substrate material powder and the powder constituent of titanium oxide titanium carbide crystal whisker, magnesium alloy substrate powder is set uniformly to be mixed with titanium oxide titanium carbide crystal whisker powder using mechanical mixing, vacuum-sintering after vacuum heating degasification after mixed-powder cold compaction, hot pressing ingot is by waiting channel deformation to obtain the titanium carbide crystal whisker toughened magnesium alloy bio-medical material of titanium oxide.The present invention is particularly suitable for bio-medical material, applies also for requiring the parts of high intensity and high-wearing feature because the toughness, wearability, intensity of the titanium carbide crystal whisker toughened magnesium alloy of in-situ preparation nickel oxide significantly improve, such as high-end sport car magnesium alloy hub.
Description
Technical field
The invention belongs to biomedical materials field, particularly titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical
Material.
Background technology
At present, the bio-medical material of clinical practice, such as skeleton implant, cardiac stent are closed using stainless steel and titanium more
Gold, stainless steel and titanium alloy have good biocompatibility, decay resistance and mechanical property, therefore stainless steel and titanium alloy
Application it is very extensive, got the nod in clinical medicine circle.Material is implanted into for the existing metal bone such as stainless steel and titanium alloy,
There is the problem of the mechanical compatibility difference with biological bone.Stainless steel, the tensile strength of titanium alloy etc materials are higher than natural bone
More than 5.3 times, modulus of elasticity is even more high more than 11 times.The skeleton implants such as stainless steel, titanium alloy produce to body local bone tissue
Raw very big " stress shielding " effect, can induce blocking property bone loss.Cause original life of skeleton implant and surrounding
Between area of new bone undergrowth and skeleton implant and biological bone around thing bone fragilityization, skeleton implant because
Stress concentration triggers inflammation.Develop new mechanics and biocompatibility more preferably bio-medical material is very necessary.Meanwhile
The operation of skeleton implant is taken out, and adds pain, time and the expense of medical person, and therefore, research and development is high tough
And the medical material that can be degraded in vivo is one of important directions of current medical field development.And the elasticity of magnesium alloy
Modulus（45GPa）It closer to the modulus of elasticity (20GPa) of people's bone, can effectively reduce " stress-shielding effect ", promote symphysis.
Magnesium alloy has certain toughness, is the beneficial element of human body simultaneously, therefore uses magnesium alloy with high strength and ductility as medical degradable
Biomaterial is feasible, but magnesium alloy is mostly magnesium alloy at present, and wherein aluminium is harmful metal, therefore is limited
Application of the magnesium alloy in human body, therefore, it is very necessary to develop new magnesium alloy with high strength and ductility biomedical material.
Based on above-mentioned purpose, present invention exploitation is a kind of without aluminium, corrosion resistant magnesium alloy with high strength and ductility biomedical material, adopts
Titanium oxide-titanium carbide crystal whisker comes the intensity of toughening magnesium alloy material, good toughness and hardness in new magnesium alloy
Method.The present invention magnesium alloy substrate material chemical composition and percentage by weight be：C：0~0.8%, Nd：1~4%, Mn
：0~0.8%, Zn：0.1~1.0%, Zr：0.3~0.8%, remaining is Mg.The existing magnesium alloy materials in China exist at present
In patent 101837145A, have as the addition of the precious metal elements such as Ag through research, analysis shows, but performance raising has
Limit.Therefore, the purpose of titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material is passed through in the present invention.
The content of the invention
The purpose of patent of the present invention is：It is to overcome above-mentioned prior art deficiency, there is provided a kind of stable processing technology, production
Cost is cheap, non-pollution discharge, the titanium oxide-titanium carbide crystal whisker toughened magnesium alloy biology doctor that production can be organized under normal conditions
With material, the biomedical material such as more traditional stainless steel, titanium alloy has more preferable biocompatibility, more conventional magnesium alloy life
The toughness of thing medical material is substantially improved.
The invention provides a kind of titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material, it is characterised in that：Should
Material forms the titanium oxide-titanium carbide crystal whisker aligned and magnesium alloy substrate material composition along extruding streamline, and diameter of whiskers is
200-800nm, the volume total amount of In-sltu reinforcement phase is in 0.05-0.10.
The present invention is as follows by the following technical programs：Titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material
Then powder closes magnesium by magnesium alloy substrate material powder and titanium oxide-titanium carbide crystal whisker powder constituent using mechanical mixing
Golden matrix powder uniformly mixes with titanium oxide-titanium carbide crystal whisker powder, 10 after mixed-powder cold compaction-6Hold in the palm vacuum condition under by
Step heating degasification, then the vacuum-sintering 1-4 hours under the conditions of 500-600 DEG C, 50-200Mpa, hot pressing ingot are logical at 300-400 DEG C
Die channel turning is crossed as 90oEqual channel angular pressing（ECAP）Deformation.
Test shows that obtained titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material has high-strength tenacity.
Scheme material requested is prepared by following specific steps：
（1）The preparation of titanium oxide-titanium carbide crystal whisker：
The preparation technology of titanium oxide-titanium carbide crystal whisker powder is：Titanium oxide-titanium carbide crystal whisker persursor material chemical composition
For：TiO2, C, Mn, NaCl, its quality proportioning is：（45.4~48.2）：（45.6~50.8）：（0.1~0.9）：（1.0~
8.1）.The precursor composite powder that can generate titanium oxide-titanium carbide crystal whisker prepared in proportion is added into absolute ethyl alcohol in ball milling
Mechanization ball milling is carried out in machine 24 hours, acquisition has the ultra-fine precursor composite powder of 200-800nm crystallite dimensions, and powder is filled
Enter in crystal vessel, under argon gas atmosphere protection and 1300 DEG C -1600 DEG C of temperature conditionss, insulation 90min-180min synthesis.
TiO2+3C=（Heating）TiC+2CO↑
（2）It is prepared by magnesium alloy substrate material powder：
The chemical composition and percentage by weight of magnesium alloy substrate material be：C：0~0.8%, Nd：1~4%, Mn：0~
0.8%, Zn：0.1~1.0%, Zr：0.3~0.8%, remaining is Mg.
The present invention is obtains optimal comprehensive mechanical property and biology corrosive nature, further by each component weight of alloy
Amount percentage is limited to C：0~0.2%, Nd：3~3.5%, Mn：0.2~0.6%, Zn：0.1~0.4%, Zr：0.6~
0.8%, remaining is Mg.Absolute ethyl alcohol is added to carry out mechanization ball milling 24 in ball mill the magnesium alloy powder prepared in proportion small
When, acquisition has 50-150 μm of crystallite dimension superfines.
The present invention strictly controls Fe, Cu, Al etc. miscellaneous to obtain optimal comprehensive mechanical property and biology corrosive nature
The content of matter：Mg degree of purity is more than or equal to 99.99%；Zn degree of purity is more than or equal to 99.999%；Except Mg, Nd, Mn,
Tramp element total amount beyond Zn, Zr is not more than 0.3%.
（3）Titanium oxide-titanium carbide crystal whisker and magnesium alloy substrate material mixed-powder：
Weight content of the titanium oxide-titanium carbide in magnesium alloy bio-medical material is 5-10%, by titanium oxide-titanium carbide
Whisker is by weight percentage with magnesium alloy substrate material（5-10）:（95-90）Ratio be formulated as titanium oxide-titanium carbide crystal whisker
Toughening magnesium alloy bio-medical material powder.
The effect difference of basic asphalt mixture element is as follows in the present invention：
Nd addition can ensure that there is magnesium alloy good Precipitation to strengthen the effect with solution strengthening, while Nd
Addition can increase substantially the electrode potential of magnesium alloy substrate, reduce the potential difference of matrix and the galvanic corrosion of the second phase, from
And significantly improve the corrosion resisting property of magnesium alloy.In addition, Nd belongs to a kind of LREE, there is preferable biological safety.
Zn is the element that cell growth development has a major impact, and is the necessary micronutrient element of human body, and Zn's adds
The intensity of alloy can be improved by entering, while effectively facilitate the generation of the non-basal slip of magnesium alloy at room temperature, improve the plasticity of magnesium alloy
Working ability.
Mn addition is necessary material when forming normal bone, there is many effects, micro necessary to be the mankind
Element, the biological function of all life is all closely related with manganese element on the earth.
Zr as grain refiner, can notable crystal grain thinning, further improve obdurability, the corrosion resistance of alloy.
The in-situ preparation titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material is without special equipment（It need not adopt
With equipment such as vacuum melting furnace, HTHPs）, it can organize to produce in conventional magnesium alloy factory, small investment of the present invention is quick,
Can quickly be recouped capital outlay cost.
Compared with existing casting medical magnesium alloy technology, the system of in-situ preparation titanium oxide-titanium carbide crystal whisker toughened magnesium alloy
Preparation Method has the following advantages that：
（1）Toughness, wearability, intensity significantly improve, and the poor mechanical property of the 2 hours extruded samples in interval is less than 6%, and this will
Be advantageous to high-volume, the steady production of small size dentistry material.It is tiny to strengthen particle size, is evenly distributed, tissue stabilization
Property it is high, with being well combined in magnesium alloy substrate.Toughness, hardness and the anti-wear performance of material significantly improve, and are particularly suitable for
The application of the medical materials such as skeleton implant, apply also for requiring the parts of high intensity and high-wearing feature, it is such as high-end
Sport car magnesium alloy hub.
（2）Microstructure stability is good, will not decompose toxic gas or poisonous dissolved matter, have to the health of customer
Place, for the present invention because enhancing particle is that reaction in-situ generates in a vacuum with magnesium alloy particles, the technology stability of production is high.
Embodiment
Highly preferred embodiment of the present invention is given below：It is by the chemical composition and percentage by weight of magnesium alloy substrate material：
C：0.2%, Nd：3%, Mn：0.5%, Zn：0.4%, Zr：0.7%, remaining is Mg：95.2% ratio prepares magnesium alloy base
Body material, add absolute ethyl alcohol to carry out mechanization ball milling in ball mill 24 hours the magnesium alloy powder prepared in proportion, obtain
With 50-150 μm of crystallite dimension superfines.It is by titanium oxide-titanium carbide crystal whisker persursor material chemical composition：TiO2, C,
Mn, NaCl, its quality proportioning are： 47：46：0.3：6.7.Titanium oxide-titanium carbide crystal whisker can be generated by what is prepared in proportion
Precursor composite powder adds absolute ethyl alcohol to carry out mechanization ball milling in ball mill 24 hours, and acquisition has 200-800nm crystal grain
The ultra-fine precursor composite powder of size.It is 8 by weight percentage by titanium oxide-titanium carbide crystal whisker and magnesium alloy substrate material:92
Ratio be formulated as titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material powder.Then made using mechanical mixing
Magnesium alloy substrate powder uniformly mixes with titanium oxide-titanium carbide crystal whisker powder, 10 after mixed-powder cold compaction-6Hold in the palm vacuum condition
Under progressively heat degasification, then at 550 DEG C, vacuum-sintering 2 hours under the conditions of 100Mpa, hot pressing ingot is led at 350 DEG C by mould
Road turning is 90oEqual channel angular pressing（ECAP）Deformation.Then T6 processing is carried out, and carries out performance test.Under the technique
The medium plasticity magnesium alloy of high intensity (tensile strength 411MPa, yield strength 370MPa, elongation percentage 6.3% can be obtained
).Corrosion rate under simulated body fluid environment is 0.27mm/year.Orthopaedics inner implantation material bone plate, nail etc. can be met
It is required that.
Claims (3)
- A kind of 1. titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material, it is characterized in that by magnesium alloy substrate material powder End and the powder constituent of titanium oxide-titanium carbide crystal whisker, make magnesium alloy substrate powder and titanium oxide-titanium carbide using mechanical mixing Whisker powder uniformly mixes, vacuum-sintering after vacuum heating degasification after mixed-powder cold compaction, and hot pressing ingot is by waiting channel deformation Obtain titanium oxide-titanium carbide crystal whisker toughened magnesium alloy bio-medical material；（a）The chemical composition and percentage by weight of magnesium alloy substrate material be：C：0~0.2%, Nd：3~3.5%, Mn：0.2 ~0.6%, Zn：0.1~0.4%, Zr：0.6~0.8%, remaining is Mg；（b）10 after the cold reality of mixed-powder-6Degasification is progressively heated under support vacuum condition, then at 500-600 DEG C, 50-200MP a Under the conditions of vacuum-sintering 1-4 hours；（c）Hot pressing ingot is 90 by die channel turning at 300-400 DEG CoEqual channel angular pressing（ECAP）Deformation obtains.
- 2. a kind of titanium oxide according to claim 1-titanium carbide crystal whisker toughened magnesium alloy bio-medical material, it is characterized in that The precursor composite powder of titanium oxide-titanium carbide crystal whisker adds absolute ethyl alcohol to carry out mechanization ball milling in ball mill 24 hours, obtains There must be the ultra-fine precursor composite powder of 200-800nm crystallite dimensions.
- 3. a kind of titanium oxide according to claim 1-titanium carbide crystal whisker toughened magnesium alloy bio-medical material, its feature It is：Magnesium alloy powder adds absolute ethyl alcohol to carry out mechanization ball milling in ball mill 24 hours, and acquisition has 50-150 μm of crystal grain chi Very little superfines.
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| CN107974567A (en) * | 2018-01-30 | 2018-05-01 | 山东建筑大学 | A kind of preparation process and method of controllable medical degraded magnesium alloy |
| CN108285987A (en) * | 2018-02-01 | 2018-07-17 | 山东建筑大学 | The preparation method of copper oxide-vanadium carbide particle enhancing antibacterial medical magnesium alloy materials |
| CN108179318B (en) * | 2018-02-01 | 2020-06-26 | 山东建筑大学 | Preparation method of high-strength degradable nano medical titanium-magnesium-silicon composite material |
| CN108193071B (en) * | 2018-02-07 | 2020-05-08 | 山东建筑大学 | Continuous extrusion preparation method of titanium-based renewable porous nanocomposite |
| CN111805306B (en) * | 2020-06-19 | 2022-04-22 | 佛山市逸合生物科技有限公司 | Polishing process of medical titanium implant |
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| CN1837392A (en) * | 2006-04-03 | 2006-09-27 | 重庆大学 | Composite material of magnesium alloy and method for preparing the same |
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| CN1837392A (en) * | 2006-04-03 | 2006-09-27 | 重庆大学 | Composite material of magnesium alloy and method for preparing the same |
| CN104689368A (en) * | 2015-02-25 | 2015-06-10 | 上海交通大学 | Degradable three-dimensional porous magnesium-based biomaterial and preparation method thereof |
| CN104894419A (en) * | 2015-02-26 | 2015-09-09 | 南昌大学 | Method for reinforcing magnesium matrix composite by using magnesium oxide-coated graphene |
| CN105063618A (en) * | 2015-08-22 | 2015-11-18 | 山东建筑大学 | Method for preparing hydroxyapatite film layer on magnesium alloy surface |
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