CN108203778A - Zr base biomedical alloys and preparation method thereof - Google Patents
Zr base biomedical alloys and preparation method thereof Download PDFInfo
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- CN108203778A CN108203778A CN201810035948.9A CN201810035948A CN108203778A CN 108203778 A CN108203778 A CN 108203778A CN 201810035948 A CN201810035948 A CN 201810035948A CN 108203778 A CN108203778 A CN 108203778A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C16/00—Alloys based on zirconium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/02—Making non-ferrous alloys by melting
Abstract
The invention discloses a kind of Zr bases biomedical alloy and preparation method thereof, the weight percent composition of Zr base biomedical alloys is：Niobium 10.5~19%, titanium 0%~30%, surplus are zirconium and inevitable impurity element.Preparation method includes the following steps：(1) raw material is weighed according to proportioning, is sent into the reaction vessel of vacuum melting furnace and is mixed, multiple vacuum melting is carried out under the protection of inert gas, obtain frit reaction liquid；(2) cold water is persistently led to the bottom of reaction vessel, is quickly cooled down frit reaction liquid, until temperature is cooled to room temperature, obtains Zr base biomedical alloys.The Zr bases biomedical alloy of the present invention has low modulus, the advantages that low magnetic susceptibility and excellent mechanical property, not only solve the stress shielding problem that implant metal is likely to result in, and be conducive to reduce the magnetic susceptibility of Metal Substrate biological implantation material, reduce the influence to MRI (magnetic resonance detection) artifact.
Description
Technical field
The invention belongs to metal-base composites technical fields, and in particular to a kind of Zr bases biomedical alloy and its preparation
Method.
Background technology
Bio-medical material is for clinical diagnosis, treatment, reparation or replacement tissue or organ or promotes its function
Functional material.The instrument of the organ and medical treatment aspect of bio-medical material and human body has association, at present all over the world
Numerous scholars are carrying out it in-depth study, bio-medical material oneself indispensable through becoming investigation of materials field one
Point.The general requirement of bio-medical material：(1) have to comply with the regulation in relation to standard, should have the reaction of nontoxic, apyrogeneity,
Not teratogenesis, it is not carcinogenic, do not cause allergic reaction, not the immunologic mechanism of interference body, have good blood compatibility and tissue
Compatibility etc..(2) good biological stability.For being chronically implanted internal bio-medical material, the structural behaviour of material must
It must stablize.(3) good mechanical performance.Good mechanical performance is one of key factor of biomaterial and hinders biology
One of an important factor for Materials.Mechanical performance generally comprise the intensity of material, elasticity, fatigue durability, wearability, size,
Moulding processability etc..
Ti and Ti alloys are widely used in bio-medical field at present, especially for the research of β-Ti alloys
It is especially prominent with application.Although β-Ti alloys have lower elasticity modulus, the overwhelming majority remains above skeleton (10-
Modulus ranges 30GPa) be easy to cause stress shielding effect, are unfavorable for bone healing.In addition, with medicine detection technique
It continues to develop, the particularly fast development of nuclear magnetic resonance technique proposes implant material higher performance requirement, although Ti
It is paramagnetic material, it is magnetic relatively low, but still nuclear magnetic resonance image can be influenced by mentioning titanium alloy implant there are many report
Quality forms artifact region.Therefore it designs a kind of mechanical property more to match with human body natural's bone, there is good biology
The bio-medical material of compatibility and low magnetic susceptibility seems more important.
Zr elements belong to same family with Ti elements in the periodic table of elements, and the two is there are many similar property, from Zr-Ti bis-
In first phasor as can be seen that at any temperature, Zr and Ti can be mutually dissolved.Zr simple substance has very excellent plasticity,
In biomedical alloy field, Zr be it is a kind of possess that excellent corrosion resistance, histocompatbility be good, avirulent metal, often
It is often used as alloy element to be added in Ti alloys, improves the mechanical performance of alloy.In addition, Zr has the elasticity lower than Ti
Modulus and magnetic susceptibility, therefore, bio-medical Zr alloys have very extensive application prospect, are expected to work out and more meet human body bone
The alternative materials of bone requirement.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of low modulus, low magnetic susceptibility, tool
There are Zr base biomedical alloys of excellent mechanical property and preparation method thereof, which can reduce pair as bio-medical material
The influence of magnetic resonance detection artifact.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of Zr bases biomedical alloy, the weight percent composition of the Zr bases biomedical alloy are：Niobium 10.5~
19%, titanium 0%~30%, surplus is zirconium and inevitable impurity element.
Preferably, the weight percent composition of the Zr bases biomedical alloy is：Niobium 14~18%, titanium 0%~16%,
Surplus is zirconium and inevitable impurity element.
When carrying out alloy design using traditional experimental method, a large amount of time, waste of materials and fund are often consumed,
And success rate is relatively low.The present invention calculates CALPHAD method combination first principles using material science, to Ti-Nb-Zr ternarys
System has carried out assessment and ingredient prediction, calculates the elasticity modulus of Ti-Nb-Zr ternary systems, and reliable calculate has been supplied to predict knot
Fruit, then carried out a large amount of smelting trials according to prediction result is calculated, it is determined that the Zr base biomedical alloys of Yi Shang ingredient, elasticity
Modulus is more matched with skeleton, is prevented stress shielding effect, is conducive to symphysis；Mechanical property is good, corrosion-resistant
Performance is good, more stablize, can mitigate physiological environment to be implanted into material corrosion, reduce induce implant around inflammation it is general
Rate, while there is relatively low magnetic susceptibility, the influence that alloy implantation material is imaged MRI can be mitigated.
In addition, the present invention uses Zr, as alloy substrate, Nb, Ti are as alloy element.Zr, Nb, Ti belong to nontoxic, raw
The element that object compatibility is good, stablizes, wherein Nb belong to β phase stabilizing elements, can reduce β → α transition temperatures, be quickly cooled down
During, alloy has little time that β → α transformations occur so that most of β phases remain.Zr, Nb element have preferable modeling
Property, Nb add in matrix after under the premise of base plastic is not influenced, the intensity of alloy can be improved.Zr elements are with Ti elements in member
Belong to same family in plain periodic table, the two is there are many similar property, from Zr-Ti binary phase diagramls as can be seen that in any temperature
Under degree, Zr and Ti can be mutually dissolved.The addition of Ti, can improve the intensity of alloy, corrosion resistance, while to alloy
Plasticity influences smaller.
At room temperature, the magnetic susceptibility of pure Ti is 3.2 × 10-6cm3The magnetic susceptibility of/g, pure Zr are about 1.28 × 10-6cm3/g.With
Zr elements are base, can substantially reduce Zr alloy magnetic susceptibility, reduce the region that artifact is formed in MRI detection process, can solve
Metal Substrate is implanted into material in the problems in MRI (magnetic resonance detection).
Room temperature is quickly cooled to, alloy has little time to occur β to α phase transition, in addition, Nb is β phase stable elements, the addition of Nb
It can remain the β phases under high temperature so that in alloy is mainly mutually the β phases of low modulus.
Preferably, in the Zr bases biomedical alloy, the weight percent of the total content of Nb and Ti is 14%~34%.
Preferably, in the Zr bases biomedical alloy, the weight percent of the total content of Nb and Ti for 10.5%~
49%.
Preferably, the elasticity modulus of the Zr bases biomedical alloy is 10~25GPa, the compression yield limit for 400~
800MPa preferably matches with skeleton mechanical property.
The inventive concept total as one, the present invention also provides a kind of preparation sides of above-mentioned Zr base biomedical alloys
Method includes the following steps：
(1) raw material is weighed according to proportioning, is sent into the reaction vessel of vacuum melting furnace and is mixed, in the guarantor of inert gas
Shield is lower to carry out multiple vacuum melting, obtains frit reaction liquid；
(2) cold water is persistently led to the bottom of reaction vessel, is quickly cooled down frit reaction liquid, until temperature is cooled to room temperature,
Obtain Zr base biomedical alloys.
Preferably, in the step (1), the temperature of vacuum melting is 3000 DEG C ± 200 DEG C, each smelting time for 70~
90 seconds, melting number was 5~7 times.
Preferably, in the step (1), in each fusion process, gas washing 3 times repeatedly.
Preferably, in the step (1), the vacuum degree control of vacuum melting is 2 × 10-3Pa~4 × 10-3Pa。
Preferably, in the step (1), the inert gas is argon gas.
Compared with prior art, the advantage of the invention is that：
1st, it is of the invention using Zr as matrix element, with the most of biomedical alloy phase using Ti as matrix before
Than Zr base biomedical alloy corrosion resistances are more preferable, and plasticity is stronger, more stablize, particularly in the springform with Zr alloys
Amount is lower, magnetic susceptibility is lower, can effectively reduce the pseudo- shadow zone generated during MRI to image, preferably meets Metal Substrate life
The demand of object medical material development provides the selection of more implantation materials for medical worker.
2.Nb elements not only have the advantages that nontoxic, good biocompatibility as a kind of alloy element, and cost compared with
Low, Nb is β phase stabilizing elements, can reduce β → α transition temperatures, makes the β phases for containing a large amount of low elastic modulus in alloy, together
When, the addition of Nb elements, under the premise of smaller on the influence of Zr alloy plasticities, moreover it is possible to improve the intensity of alloy, corrosion resistance.
3. Zr- (14-18) Nb-xTi (x=0~16) biomedical alloy of the present invention, elasticity modulus is 10~25GPa,
It is more matched with skeleton elasticity modulus (10-30GPa), the influence of implant material stress shielding can be alleviated, be conducive to
The healing of bone.The compression yield limit be 400~800MPa, have good mechanical property, preferably with skeleton mechanics
Performance matches so that implant material has longer service life, mitigates the pain that patient frequently replaces implantation material.
Description of the drawings
Fig. 1 is the SEM figures of the Zr base biomedical alloys of the embodiment of the present invention 1.
Fig. 2 is the stress-strain curve diagram of the Zr base biomedical alloys of the embodiment of the present invention 1~5.
Fig. 3 is the XRD spectrum before the Zr base biomedical alloy compressive deformations of the embodiment of the present invention 1~5.
Fig. 4 is the XRD spectrum after the Zr base biomedical alloy compressive deformations of the embodiment of the present invention 1~5.
Fig. 5 is the SEM figures of the Zr base biomedical alloys of the embodiment of the present invention 2.
Fig. 6 is the SEM figures of the Zr base biomedical alloys of the embodiment of the present invention 3.
Fig. 7 is the SEM figures of the Zr base biomedical alloys of the embodiment of the present invention 4.
Fig. 8 is the SEM figures of the Zr base biomedical alloys of the embodiment of the present invention 5.
Specific embodiment
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Embodiment 1：
The Zr base biomedical alloys of a kind of low modulus of the present invention, low magnetic susceptibility, weight percent composition are：Nb：
16%, surplus is zirconium and inevitable impurity element.
The Zr base biomedical alloys of the present embodiment are made by following methods：
(1) raw material is weighed, Zr corresponding, Nb is weighed according to the weight percent of designed each raw material components respectively
Grain, Zr, Nb purity in more than 99.99wt%, holding particle size as possible is consistent.
(2) raw material after weighing is uniformly mixed.
(3) melting raw material：By wiped clean in non-consumable vacuum melting furnace, holding furnace is interior to be cleaned, then will be in step (2)
Raw material be put into the copper crucible of non-consumable vacuum melting furnace, start to vacuumize, vacuum degree control is 3 × 10-3Pa is passed through argon gas
Remaining air is removed, melting is carried out under the protection of argon gas, smelting temperature is at 3000 DEG C；The smelting time of each sample is 80
Second, remelting 6 times repeatedly.In the process, gas washing 3 times repeatedly.
(4) alloy by melting in step (3) cools down in copper crucible, and in the process, copper crucible is in the protection of argon gas
Under prevent alloy from being contacted with air, cold water persistently is led to copper crucible bottom, ensures being quickly cooled down for alloy, is taken after being cooled to room temperature
Go out, obtain Zr-16Nb biomedical alloy ingot castings.
The detection of Zr bases biomedical alloy made from the present embodiment：
The Compressive Mechanical Properties of Zr-16Nb biomedical alloys obtained by above-mentioned preparation process are tested, after melting
Ingot casting the cylinder of 3 × 6mm of φ is cut by wire cutting machine, the sample after cutting is carried out at room temperature using Shimadzu testing machine
Compressive Mechanical Properties are tested, and modulus of elasticity in comperssion, compression yield strength, compressive ultimate strength and the compression plasticity for obtaining sample become
Shape amount.It can be obtained by Fig. 2, the elasticity modulus of Zr-16Nb alloy samples is 14.6494GPa, and yield limit is
629.30MPa, maximal compressed stress 1566.07MPa, amount of plastic deformation 58.2127%.The Zr- observed by SEM
The microstructure of 16Nb alloys is as shown in Figure 1.Diffraction maximum before and after the deformation obtained by XRD is distributed respectively such as the institutes of Fig. 3 and 4
Show, it can be seen that before and after compressive deformation, the phase composition of Zr-16Nb is most β phases and a small amount of α ' phases, this is because
During being quickly cooled down, have little time that β → α phase transition occurs, only a small amount of β is changed into metastable α ' phases.
Embodiment 2：
The Zr base biomedical alloys of a kind of low modulus of the present invention, low magnetic susceptibility, weight percent composition are：Nb：
16%, Ti：4%, surplus is zirconium and inevitable impurity element.
The Zr base biomedical alloys of the present embodiment are made by following methods：
(1) raw material is weighed, Zr corresponding, Nb is weighed according to the weight percent of designed each raw material components respectively
Grain, Ti, Zr, Nb, Ti purity in more than 99.99wt%, holding particle size as possible is consistent.
(2) raw material after weighing is uniformly mixed.
(3) melting raw material：By wiped clean in non-consumable vacuum melting furnace, holding furnace is interior to be cleaned, then will be in step (2)
Raw material be put into the copper crucible of non-consumable vacuum melting furnace, start to vacuumize, vacuum degree control is 3 × 10-3Pa is passed through argon gas
Remaining air is removed, melting is carried out under the protection of argon gas, smelting temperature is at 3000 DEG C；The smelting time of each sample is 80
Second, remelting 6 times repeatedly.In the process, gas washing 3 times repeatedly.
(4) alloy by melting in step (3) cools down in copper crucible, and in the process, copper crucible is in the protection of argon gas
Under prevent alloy from being contacted with air, persistently to the water flowing of copper crucible bottom, ensure being quickly cooled down for alloy, taken after being cooled to room temperature
Go out, obtain Zr-16Nb-4Ti biomedical alloy ingot castings.
The detection of Zr bases biomedical alloy made from the present embodiment：
The Compressive Mechanical Properties of Zr-16Nb-4Ti biomedical alloys obtained by above-mentioned preparation process are tested, it will be molten
Ingot casting after refining is cut into the cylinder of 3 × 6mm of φ by wire cutting machine, and room temperature is carried out to the sample after cutting using Shimadzu testing machine
Under Compressive Mechanical Properties test, obtain the modulus of elasticity in comperssion of sample, compression yield strength, compressive ultimate strength and compression modeling
Property deflection.It can be obtained by Fig. 2, the elasticity modulus of Zr-16Nb-4Ti alloy samples is 14.9834GPa, and yield limit is
637.36MPa, maximal compressed stress 1229.81MPa, amount of plastic deformation 52.1188%.Here under maximal compressed stress
The possible cause of drop is since sample size has deviation to cause during the cutting process.It is closed by the Zr-16Nb-4Ti that SEM is observed
The microstructure of gold is as shown in Figure 5.Diffraction maximum distribution before and after the deformation obtained by XRD is as shown in Figure 3,4, it can be seen that
Before and after compressive deformation, the phase composition of Zr-16Nb-4Ti is most β phases and a small amount of α ' phases.
Embodiment 3：
The Zr base biomedical alloys of a kind of low modulus of the present invention, low magnetic susceptibility, weight percent composition are：Nb：
16%, Ti：8%, surplus is zirconium and inevitable impurity element.
The Zr base biomedical alloys of the present embodiment are made by following methods：
(1) raw material is weighed, Zr corresponding, Nb is weighed according to the weight percent of designed each raw material components respectively
Grain, Ti, Zr, Nb, Ti purity in more than 99.99wt%, holding particle size as possible is consistent.
(2) raw material after weighing is uniformly mixed.
(3) melting raw material：By wiped clean in non-consumable vacuum melting furnace, holding furnace is interior to be cleaned, then will be in step (2)
Raw material be put into the copper crucible of non-consumable vacuum melting furnace, start to vacuumize, vacuum degree control is 3 × 10-3Pa is passed through argon gas
Remaining air is removed, melting is carried out under the protection of argon gas, smelting temperature is at 3000 DEG C；The smelting time of each sample is 80
Second, remelting 6 times repeatedly.In the process, gas washing 3 times repeatedly.
(4) alloy by melting in step (3) cools down in copper crucible, and in the process, copper crucible is in the protection of argon gas
Under prevent alloy from being contacted with air, persistently to the water flowing of copper crucible bottom, ensure being quickly cooled down for alloy, taken after being cooled to room temperature
Go out, obtain Zr-16Nb-8Ti biomedical alloy ingot castings.
The detection of Zr bases biomedical alloy made from the present embodiment：
The Compressive Mechanical Properties of Zr-16Nb-8Ti biomedical alloys obtained by above-mentioned preparation process are tested, it will be molten
Ingot casting after refining is cut into the cylinder of 3 × 6mm of φ by wire cutting machine, and room temperature is carried out to the sample after cutting using Shimadzu testing machine
Under Compressive Mechanical Properties test, obtain the modulus of elasticity in comperssion of sample, compression yield strength, compressive ultimate strength and compression modeling
Property deflection.It can be obtained by Fig. 2, the elasticity modulus of Zr-16Nb-8Ti alloy samples is 19.6897GPa, and yield limit is
638.56MPa, maximal compressed stress 1546.23MPa, amount of plastic deformation 54.5056%.The Zr- observed by SEM
The microstructure of 16Nb-8Ti alloys is as shown in Figure 6.Diffraction maximum distribution before and after the deformation obtained by XRD is respectively such as Fig. 3,4
It is shown, it can be seen that before and after compressive deformation, the phase composition of Zr-16Nb-8Ti is most β phases and a small amount of α ' phases.
Embodiment 4：
The Zr base biomedical alloys of a kind of low modulus of the present invention, low magnetic susceptibility, weight percent composition are：Nb：
16%, Ti：12%, surplus is zirconium and inevitable impurity element.
The Zr base biomedical alloys of the present embodiment are made by following methods：
(1) raw material is weighed, Zr corresponding, Nb is weighed according to the weight percent of designed each raw material components respectively
Grain, Ti, Zr, Nb, Ti purity in more than 99.99wt%, holding particle size as possible is consistent.
(2) raw material after weighing is uniformly mixed.
(3) melting raw material：By wiped clean in non-consumable vacuum melting furnace, holding furnace is interior to be cleaned, then will be in step (2)
Raw material be put into the copper crucible of non-consumable vacuum melting furnace, start to vacuumize, vacuum degree control is 3 × 10-3Pa is passed through argon gas
Remaining air is removed, melting is carried out under the protection of argon gas, smelting temperature is at 3000 DEG C；The smelting time of each sample is 80
Second, remelting 6 times repeatedly.In the process, gas washing 3 times repeatedly.
(4) alloy by melting in step (3) cools down in copper crucible, and in the process, copper crucible is in the protection of argon gas
Under prevent alloy from being contacted with air, persistently to the water flowing of copper crucible bottom, ensure being quickly cooled down for alloy, taken after being cooled to room temperature
Go out, obtain Zr-16Nb-12Ti biomedical alloy ingot castings.
The detection of Zr bases biomedical alloy made from the present embodiment：
The Compressive Mechanical Properties of Zr-16Nb-12Ti biomedical alloys obtained by above-mentioned preparation process are tested, it will be molten
Ingot casting after refining is cut into the cylinder of 3 × 6mm of φ by wire cutting machine, and room temperature is carried out to the sample after cutting using Shimadzu testing machine
Under Compressive Mechanical Properties test, obtain the modulus of elasticity in comperssion of sample, compression yield strength, compressive ultimate strength and compression modeling
Property deflection.It can be obtained by Fig. 2, the elasticity modulus of Zr-16Nb-12Ti alloy samples is 20.5665GPa, yield limit
For 641.38MPa, maximal compressed stress 1740.91MPa, amount of plastic deformation 54.1317%.The Zr- observed by SEM
The microstructure of 16Nb-12Ti alloys is as shown in Figure 7.Diffraction maximum before and after the deformation obtained by XRD is distributed such as Fig. 3,4 institutes
Show, it can be seen that before and after compressive deformation, the phase composition of Zr-16Nb-12Ti is most β phases and minimal amount of α ' phases.
Embodiment 5：
The Zr base biomedical alloys of a kind of low modulus of the present invention, low magnetic susceptibility, weight percent composition are：Nb：
16%, Ti：16% and inevitable impurity element, Zr, Nb, Ti purity are in more than 99.99wt%.
The Zr base biomedical alloys of the present embodiment are made by following methods：
(1) raw material is weighed, Zr corresponding, Nb is weighed according to the weight percent of designed each raw material components respectively
Grain, Ti, Zr, Nb, Ti purity in more than 99.99wt%, holding particle size as possible is consistent.
(2) raw material after weighing is uniformly mixed.
(3) melting raw material：By wiped clean in non-consumable vacuum melting furnace, holding furnace is interior to be cleaned, then will be in step (2)
Raw material be put into the copper crucible of non-consumable vacuum melting furnace, start to vacuumize, vacuum degree control is 3 × 10-3Pa is passed through argon gas
Remaining air is removed, melting is carried out under the protection of argon gas, smelting temperature is at 3000 DEG C；The smelting time of each sample is 80
Second, remelting 6 times repeatedly.In the process, gas washing 3 times repeatedly.
(4) alloy by melting in step (3) cools down in copper crucible, and in the process, copper crucible is in the protection of argon gas
Under prevent alloy from being contacted with air, persistently to the water flowing of copper crucible bottom, ensure being quickly cooled down for alloy, taken after being cooled to room temperature
Go out, obtain Zr-16Nb-16Ti biomedical alloy ingot castings.
The detection of Zr bases biomedical alloy made from the present embodiment：
The Compressive Mechanical Properties of Zr-16Nb-16Ti biomedical alloys obtained by above-mentioned preparation process are tested, it will be molten
Ingot casting after refining is cut into the cylinder of 3 × 6mm of φ by wire cutting machine, and room temperature is carried out to the sample after cutting using Shimadzu testing machine
Under Compressive Mechanical Properties test, obtain the modulus of elasticity in comperssion of sample, compression yield strength, compressive ultimate strength and compression modeling
Property deflection.It can be obtained by Fig. 2, the elasticity modulus of Zr-16Nb-16Ti alloy samples is 20.4661GPa, yield limit
For 642.82MPa, maximal compressed stress 1784.34MPa, amount of plastic deformation 54.0206%.The Zr- observed by SEM
The microstructure of 16Nb-16Ti alloys is as shown in Figure 8.Diffraction maximum before and after the deformation obtained by XRD is distributed such as Fig. 3,4 institutes
Show, it can be seen that before and after compressive deformation, the phase composition of Zr-16Nb-16Ti is most β phases and minimal amount of α ' phases.
It is it is necessary to described herein finally：Above example is served only for making technical scheme of the present invention further detailed
Ground explanation, it is impossible to be interpreted as limiting the scope of the invention, those skilled in the art's the above according to the present invention
Some the nonessential modifications and adaptations made all belong to the scope of protection of the present invention.It is it is necessary to described herein finally：With
Upper embodiment is served only for being described in more detail technical scheme of the present invention, it is impossible to be interpreted as to the scope of the present invention
Limitation, some nonessential modifications and adaptations that those skilled in the art's the above according to the present invention is made belong to
Protection scope of the present invention.
Claims (8)
1. a kind of Zr bases biomedical alloy, which is characterized in that the weight percent of the Zr bases biomedical alloy, which forms, is：
Niobium 10.5~19%, titanium 0%~30%, surplus are zirconium and inevitable impurity element.
2. a kind of Zr bases biomedical alloy, which is characterized in that the weight percent of the Zr bases biomedical alloy, which forms, is：
Niobium 14~18%, titanium 0%~16%, surplus are zirconium and inevitable impurity element.
3. Zr bases biomedical alloy according to claim 1 or 2, which is characterized in that the Zr bases biomedical alloy
Elasticity modulus for 10~25GPa, the compression yield limit is 400~800MPa.
4. a kind of preparation method of such as claims 1 to 3 any one of them Zr base biomedical alloys, includes the following steps：
(1) raw material is weighed according to proportioning, is sent into the reaction vessel of vacuum melting furnace and is mixed, under the protection of inert gas
Multiple vacuum melting is carried out, obtains frit reaction liquid；
(2) cold water is persistently led to the bottom of reaction vessel, is quickly cooled down frit reaction liquid, until temperature is cooled to room temperature, obtains
Zr base biomedical alloys.
5. the preparation method of Zr bases biomedical alloy according to claim 4, which is characterized in that in the step (1),
The temperature of vacuum melting is 3000 DEG C ± 200 DEG C, and each smelting time is 70~90 seconds, and melting number is 5~7 times.
6. the preparation method of Zr bases biomedical alloy according to claim 5, which is characterized in that in the step (1),
In each fusion process, gas washing 3 times repeatedly.
7. the preparation method of Zr bases biomedical alloy according to claim 5 or 6, which is characterized in that the step (1)
In, the vacuum degree control of vacuum melting is 2 × 10-3Pa~4 × 10-3Pa。
8. the preparation method of Zr bases biomedical alloy according to claim 7, which is characterized in that in the step (1),
The inert gas is argon gas.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763852A (en) * | 2020-05-20 | 2020-10-13 | 东南大学 | Biomedical implanted zirconium alloy and preparation method thereof |
| CN111795923A (en) * | 2020-08-24 | 2020-10-20 | 兰州金川科力远电池有限公司 | Method for rapidly testing corrosion resistance of hydrogen storage alloy powder |
| CN113403502A (en) * | 2021-07-28 | 2021-09-17 | 燕山大学 | Low-elasticity-modulus zirconium alloy and preparation method thereof |
| CN114277283A (en) * | 2021-12-28 | 2022-04-05 | 南京理工大学 | Omega-rich medical zirconium-based alloy and preparation method thereof |
| CN114657414A (en) * | 2022-03-16 | 2022-06-24 | 宝鸡永祥泰金属材料有限公司 | Novel titanium-zirconium alloy material and preparation method thereof |
| CN114984306A (en) * | 2022-03-17 | 2022-09-02 | 中南大学 | Method for constructing biological protein mineralized coating on surface of Zr-based alloy |
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