CN108893629A - A kind of erosion resistant titanium alloy and preparation method thereof - Google Patents
A kind of erosion resistant titanium alloy and preparation method thereof Download PDFInfo
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- CN108893629A CN108893629A CN201810876100.9A CN201810876100A CN108893629A CN 108893629 A CN108893629 A CN 108893629A CN 201810876100 A CN201810876100 A CN 201810876100A CN 108893629 A CN108893629 A CN 108893629A
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Abstract
The present invention provides a kind of erosion resistant titanium alloys, based on mass content, including Pd 0.04~0.25%, Zr (0,50%] and surplus Ti.The content of strict control each element of the present invention, in the present invention, the Pd element main function are to improve its anti-crevice corrosion ability, improve the anti-pollution of titanium alloy surface hydrogen-absorbing ability；Simultaneously on the basis of Pd element, in conjunction with the addition of Zr element, since Zr is more negative relative to the blunt current potential of cause of Ti as passive metal, passivation ability is stronger, is easier to generate passivating film in alloy surface, corrosion resistance of the alloy in a variety of corrosive mediums gets a promotion.The experimental results showed that erosion resistant titanium alloy provided by the invention compared with the comparative alloy (Ti-0.04Pd) that same treatment technique obtains, resistance to corrosion in sodium chloride solution promotes amplitude up to 11.28~66.29%.
Description
Technical field
The present invention relates to titanium alloy technical field, in particular to a kind of erosion resistant titanium alloy and preparation method thereof.
Background technique
Titanium alloy has a wide range of applications advantage with a series of advantages such as its high specific strength, high ratio modulus, corrosion-resistant,
The numerous areas such as ocean engineering, aerospace, biomedicine, metallurgy, chemical industry, light industry are paid attention to.
As titanium or titanium alloy is by wide hair application, the nowadays continuous development of medicine and the continuous concern to human health, life
Object medical domain proposes more stringent requirement to the performance of titanium alloy, and conventional titanium alloy is in elasticity modulus and corrosion-resistant aspect
Be difficult to meet the requirement of body implanting material instantly, as body implanting material, should have lower elasticity modulus, avoid due to
Stress-shielding effect and the skeleton damage generated and generation situations such as osteoporosis, should also have excellent corrosion resistance
Can, to meet the normal service situation under human body fluid environment for a long time.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of erosion resistant titanium alloys and preparation method thereof.The present invention provides
Titanium alloy there is good corrosion resistance, and elasticity modulus is low, meets body implanting material to elasticity modulus and corrosion-resistant
The requirement of property.
The present invention provides a kind of erosion resistant titanium alloys, based on mass content, including Pd 0.04~0.25%, Zr (0,
50%] and the Ti of surplus.
Preferably, the erosion resistant titanium alloy includes the Ti of Pd 0.04~0.25%, Zr 5~40% and surplus.
Preferably, the erosion resistant titanium alloy contains the mesh basket tissue of lath-shaped α ' phase composition；Lath-shaped α ' the phase
Width is 0.62~3.99 μm.
The present invention also provides the preparation methods of the erosion resistant titanium alloy described in above-mentioned technical proposal, include the following steps：
(1) cast alloy base will be obtained after alloy raw material melting；
(2) the cast alloy base for obtaining the step (1) carries out solution treatment, obtains solid solution state base；
(3) the solid solution state base that the step (2) obtains is made annealing treatment, obtains erosion resistant titanium alloy.
Preferably, melting is vacuum arc melting in the step (1), the temperature of the vacuum arc melting is 2000~
2500℃。
Preferably, melting is repeated 5 times or more in the step (1).
Preferably, the holding temperature of solution treatment is 750~900 DEG C in the step (2), the soaking time of solution treatment
For 60~90min, the type of cooling of solution treatment is water quenching.
Preferably, the insulating process of step (2) solution treatment and the middle insulating process made annealing treatment of step (3) are independent
Ground carries out under protective atmosphere.
Preferably, the holding temperature made annealing treatment in the step (3) is 400~500 DEG C, the soaking time of annealing
For 2~3h, the type of cooling of annealing is cold with furnace.
The present invention provides a kind of erosion resistant titanium alloys, based on mass content, including Pd 0.04~0.25%, Zr (0,
50%] and the Ti of surplus.The content of strict control each element of the present invention, in the present invention, the Pd element main function is to mention
Its high anti-crevice corrosion ability, improves the anti-pollution of titanium alloy surface hydrogen-absorbing ability；Simultaneously on the basis of Pd element,
In conjunction with the addition of Zr element, since Zr is more negative relative to the blunt current potential of cause of Ti as passive metal, passivation ability is stronger, is easier to
Alloy surface generates passivating film, and corrosion resistance of the alloy in a variety of corrosive mediums gets a promotion.The experimental results showed that this
Invent provide erosion resistant titanium alloy with same treatment technique obtain comparative alloy (Ti-0.04Pd) compared with, in chlorination
Resistance to corrosion in sodium solution promotes amplitude up to 11.28~66.29%.
Detailed description of the invention
Fig. 1 is the metallographic optical microscopy map of titanium alloy made from embodiment 1；
Fig. 2 is the metallographic optical microscopy map of titanium alloy made from embodiment 2；
Fig. 3 is the metallographic optical microscopy map of titanium alloy made from embodiment 3；
Fig. 4 is the metallographic optical microscopy map of titanium alloy made from embodiment 4；
Fig. 5 is the metallographic optical microscopy map of titanium alloy made from embodiment 5；
Fig. 6 is the metallographic optical microscopy map of titanium alloy made from embodiment 6；
Fig. 7 is tensile property of the present invention test tensile sample dimensional drawing.
Specific embodiment
The present invention provides the present invention provides a kind of erosion resistant titanium alloys, based on mass content, including Pd 0.04~
0.25%, Zr (0,50%] and surplus Ti.
Erosion resistant titanium alloy provided by the invention, based on mass content, including Pd 0.04~0.25%, preferably 0.1~
0.2%, more preferably 0.15%.In the present invention, the Pd element main function is to improve its anti-crevice corrosion ability, is improved
The anti-pollution of titanium alloy surface hydrogen-absorbing ability.
Erosion resistant titanium alloy provided by the invention, based on mass content, including Zr (0,50%], further preferably Zr 5
~40%, preferably 10~30%, further preferably 15~25%, more preferably 20~22%.In the present invention, Zr and Ti
It can infinitely be dissolved, the Zr element being dissolved into Ti matrix plays the role of solution strengthening；Simultaneously because the addition meeting of Zr element
Cause distortion of lattice, these defects will lead in nucleation process, and nucleation point increases, and the density of forming core increases, and it is thin to play crystal grain
Change to effect；Zr is dissolved into Ti matrix, improve the intensity and corrosion resistance of alloy, makes its inoic acid, alkali, salt
There is excellent anti-corrosion capability in medium, and the biocompatibility of Zr is excellent；The addition of Zr element, not only can be strong by being dissolved
Change, the mechanical property of refined crystalline strengthening mechanism promotion alloy, optimized alloy microscopic structure enhances the corrosion resistance of alloy, moreover it is possible to
It is appropriate to reduce alloy phase transition temperature.And on the basis of Pd, in conjunction with the addition of Zr element, since Zr is as passive metal phase
Current potential blunt for the cause of Ti is more negative, and passivation ability is stronger, is easier to generate passivating film in alloy surface, alloy is in a variety of corrosive mediums
In corrosion resistance get a promotion.
Erosion resistant titanium alloy provided by the invention, based on mass content, in addition to above-mentioned each element, the Ti including surplus.
In the present invention, the erosion resistant titanium alloy preferably comprises the mesh basket of lath-shaped α ' martensitic phase (i.e. α ' phase) composition
Tissue.In the present invention, the width of the high-strength corrosion-resistant erosion titanium alloy middle plate strip shape α ' phase is preferably 0.62~3.99 μm, into one
Preferably 0.89~1.64 μm of step；Lath is refined, and the obdurability of erosion resistant titanium alloy is improved.
The present invention also provides the preparation methods of the erosion resistant titanium alloy described in above-mentioned technical proposal, include the following steps：
(1) cast alloy base will be obtained after alloy raw material melting；
(2) the cast alloy base for obtaining the step (1) carries out solution treatment, obtains solid solution state base；
(3) the solid solution state base that the step (2) obtains is made annealing treatment, obtains erosion resistant titanium alloy.
The present invention will obtain cast alloy base after alloy raw material melting.The present invention is to the type of the alloy raw material without spy
Different restriction uses the alloy raw material of titanium alloy smelting well known to those skilled in the art can obtain the titanium alloy of target components
Subject to.In the present invention, the alloy raw material preferably includes titanium sponge, sponge zirconium, fine aluminium, pure niobium and pure tantalum.The present invention is to each
The ratio of kind alloy raw material does not have special restriction, and final alloying component can be made to meet the requirements.
In the present invention, the melting is preferably vacuum arc melting, and the temperature of the vacuum arc melting is preferably
2000~2500 DEG C, more preferably 2200~2400 DEG C, most preferably 2250~2300 DEG C；The time of the melting is preferably 3
~5min, more preferably 4min.In the present invention, the vacuum degree of the vacuum arc melting is preferably 0.04~0.05MPa,
It is carried out under the conditions of certain argon gas.When using vacuum arc melting, vacuum degree in furnace chamber is preferably first evacuated to 9 × 10 by the present invention- 3Pa hereinafter, be passed through argon gas again；The intake of the argon gas is to meet the amount of electric arc melting ionized gas.This hair
The bright specific embodiment to the vacuum arc melting does not have particular/special requirement, is using well-known to those skilled in the art
It can.The present invention using first vacuumize be passed through argon gas again by the way of can be avoided Ti and Zr first in the event of high temperatures, it is a large amount of to inhale
Nitrogen is inhaled in hydrogen oxygen uptake, is aoxidized, moreover it is possible to provide ionized gas for electric arc melting.
The present invention in melting, grow up to the preferential forming core of β phase during Solid State Transformation by melting liquid, obtains β phase green body, is
The phase transition of subsequent solution treatment and ageing treatment provides basis.
In the present invention, 5 times or more, further preferably 6~10 times are preferably repeated in the melting, obtain after melting
Cast alloy base.In the present invention, when melting is repeated, progress of the melting preferably in vacuum arc melting furnace；
Specifically：Raw metal is subjected to melting in arc-melting furnace, obtains melting liquid；Then cooling obtains slab, then overturns casting
Melting is carried out after base, obtains melting liquid again, cools down melting liquid, the slab obtained, with this 5 times or more repeatedly, it is ensured that obtain again
As cast condition base ingredient it is uniform.
Before the melting, the alloy raw material is preferably cleaned by ultrasonic by the present invention；The present invention is to the ultrasonic cleaning
Specific embodiment there is no particular/special requirement, using well-known to those skilled in the art.
After obtaining cast alloy base, the cast alloy base is carried out solution treatment by the present invention, obtains solid solution state base.At this
In invention, the holding temperature of the solution treatment is preferably 750~900 DEG C, and further preferably 770~890 DEG C, more preferably
785~880 DEG C.In the present invention, the soaking time of the solution treatment is preferably 0.5~1h, further preferably 35~
55min, more preferably 45~50min.In the present invention, the type of cooling of the solution treatment is preferably water quenching.The present invention couple
The specific embodiment of the solution treatment does not have particular/special requirement, is using embodiment well-known to those skilled in the art
It can.In the present invention, the insulating process of the solution treatment preferably carries out under protective atmosphere, and the protective atmosphere is specially argon
Gas shielded atmosphere.In the present invention, the solution treatment process obtains the α ' martensitic phase that can produce strengthening effect；And α '
Martensitic phase tissue is more tiny, and alloy strength can be improved.There is { 0001 } during β opposite α ' phase transition in the present invention
α ' // { 110 } β and<11-20>α′//<111>The Bo Gesi orientation relationship of β, there are the orientations that 12 kinds are likely to form α ' phase, are able to
Form staggered α ' phase mesh basket tissue.
After obtaining solid solution state base, the present invention makes annealing treatment the cast alloy base, obtains high-strength corrosion-resistant erosion titanium and closes
Gold.In the present invention, the holding temperature of the annealing is preferably 400~500 DEG C, and further preferably 430~480 DEG C,
More preferably 450~475 DEG C；The soaking time of the annealing is preferably 2~3h, further preferably 2.2~2.8h, more
Preferably 2.5h；The type of cooling of the annealing is preferably cold with furnace.In the present invention, the heat preservation of the annealing
Cheng Youxuan is carried out under protective atmosphere, and the protective atmosphere is specially argon atmosphere.In the present invention, at the annealing
Reason can effectively eliminate the residual stress formed in fusion process and eliminate part microscopic defect, keep alloying component further equal
It homogenizes, also improves alloy corrosion resistance while improving alloy processing performance.
After annealing, the present invention removes surface scale after being preferably cooled to room temperature annealed state alloy, obtains
Erosion resistant titanium alloy.In the present invention, the mode of the cooling is preferably furnace cooling；Present invention preferably employs the modes of polishing
Remove surface scale.
In order to further illustrate the present invention, below with reference to embodiment to erosion resistant titanium alloy provided by the invention and its preparation
Method is described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
By alloying component Ti-5Zr-0.25Pd (mass percent) ingredient, technical grade titanium sponge 94.75g, sponge zirconium are weighed
5g, pure palladium 0.25g are dipped in dehydrated alcohol, are air-dried after ultrasonic cleaning, and the water-cooled copper of non-consumable vacuum arc melting furnace is placed in
In crucible, the vacuum degree in furnace chamber will be extracted into 9 × 10-3Pa is hereinafter, be filled with high-purity argon gas as protection gas before electric arc melting after, often
Arc temperature is about 2500 DEG C or so when secondary melting, and smelting time is about 3 minutes or so, and cooling obtains after each melting
Ingot casting, then overturning processing is carried out to ingot casting and carries out melting, with this melting-casting ingot casting melt back and overturning ingot casting 6 times to protect
It is uniform to demonstrate,prove the ingot casting ingredient finally obtained.
It then takes out alloy cast ingot and is put into vacuum/atmosphere tube type furnace (limited public affairs of the Tianjin SK-G06143 middle ring experimental electric furnace
Department) in, solution treatment is carried out after being filled with protection gas argon gas：In 900 DEG C of heat preservation 60min, then from tube furnace take out and it is rapid
Carry out water quenching.
Then the alloy cast ingot after solution treatment is placed again into vacuum/atmosphere tube type furnace and is made annealing treatment, is controlled
The holding temperature of annealing is 500 DEG C, and soaking time 120min cools to room temperature with the furnace later.
It is taken out after alloy pig is completely cooling, careful polishes off the oxide layer of alloy ingot surface, and is cleaned and air-dried,
Obtain erosion resistant titanium alloy.
Embodiment 2
By alloying component Ti-10Zr-0.04Pd (mass percent) ingredient, technical grade titanium sponge 84.8g, sponge zirconium are weighed
10g and pure palladium 0.2g are dipped in dehydrated alcohol, are air-dried after ultrasonic cleaning, and the water-cooled copper of non-consumable vacuum arc melting furnace is placed in
In crucible, the vacuum degree in furnace chamber will be extracted into 9 × 10-3Pa is hereinafter, be filled with high-purity argon gas as protection gas before electric arc melting after, often
Arc temperature is about 2500 DEG C or so when secondary melting, and smelting time is about 3 minutes or so, and cooling obtains after each melting
Ingot casting, then overturning processing is carried out to ingot casting and carries out melting, with this melting-casting ingot casting melt back and overturning ingot casting 8 times to protect
It is uniform to demonstrate,prove the ingot casting ingredient finally obtained.
It then takes out alloy cast ingot and is put into vacuum/atmosphere tube type furnace (limited public affairs of the Tianjin SK-G06143 middle ring experimental electric furnace
Department) in, solution treatment is carried out after being filled with protection gas argon gas：In 890 DEG C of heat preservation 35min, then from tube furnace take out and it is rapid
Carry out water quenching.
Then the alloy cast ingot after solution treatment is placed again into vacuum/atmosphere tube type furnace and is made annealing treatment, is controlled
The holding temperature of annealing is 480 DEG C, and soaking time 130min cools to room temperature with the furnace later.
It is taken out after alloy pig is completely cooling, careful polishes off the oxide layer of alloy ingot surface, and is cleaned and air-dried,
Obtain erosion resistant titanium alloy.
Embodiment 3
By alloying component Ti-20Zr-0.04Pd (mass percent) ingredient, technical grade titanium sponge 74.84g, sponge are weighed
Zirconium 20g and pure palladium 0.16g are dipped in dehydrated alcohol, are air-dried after ultrasonic cleaning, and the water of non-consumable vacuum arc melting furnace is placed in
In cold copper crucible, the vacuum degree in furnace chamber will be extracted into 8 × 10-3Pa is hereinafter, be filled with high-purity argon gas as protection gas before electric arc melting
Afterwards, arc temperature is about 2500 DEG C or so when each melting, and smelting time is about 3 minutes or so, cold after each melting
But ingot casting is obtained, then overturning processing is carried out to ingot casting and carries out melting, with this melting-casting ingot casting melt back and overturning ingot casting 10
The secondary ingot casting ingredient finally obtained with guarantee is uniform.
It then takes out alloy cast ingot and is put into vacuum/atmosphere tube type furnace (limited public affairs of the Tianjin SK-G06143 middle ring experimental electric furnace
Department) in, solution treatment is carried out after being filled with protection gas argon gas：In 880 DEG C of heat preservation 45min, then from tube furnace take out and it is rapid
Carry out water quenching.
Then the alloy cast ingot after solution treatment is placed again into vacuum/atmosphere tube type furnace and is made annealing treatment, is controlled
The holding temperature of annealing is 450 DEG C, and soaking time 140min cools to room temperature with the furnace later.
It is taken out after alloy pig is completely cooling, careful polishes off the oxide layer of alloy ingot surface, and is cleaned and air-dried,
Obtain erosion resistant titanium alloy.
Embodiment 4
By alloying component Ti-30Zr-0.04Pd (mass percent) ingredient, technical grade titanium sponge 64.88g, sponge are weighed
Zirconium 30g and pure palladium 0.12g are dipped in dehydrated alcohol, are air-dried after ultrasonic cleaning, and the water of non-consumable vacuum arc melting furnace is placed in
In cold copper crucible, the vacuum degree in furnace chamber will be extracted into 9 × 10-3Pa is hereinafter, be filled with high-purity argon gas as protection gas before electric arc melting
Afterwards, arc temperature is about 2500 DEG C or so when each melting, and smelting time is about 3 minutes or so, cold after each melting
But ingot casting is obtained, then overturning processing is carried out to ingot casting and carries out melting, with this melting-casting ingot casting melt back and overturning ingot casting 6
The secondary ingot casting ingredient finally obtained with guarantee is uniform.
It then takes out alloy cast ingot and is put into vacuum/atmosphere tube type furnace (limited public affairs of the Tianjin SK-G06143 middle ring experimental electric furnace
Department) in, solution treatment is carried out after being filled with protection gas argon gas：In 785 DEG C of heat preservation 50min, then from tube furnace take out and it is rapid
Carry out water quenching.
Then the alloy cast ingot after solution treatment is placed again into vacuum/atmosphere tube type furnace and is made annealing treatment, is controlled
The holding temperature of annealing is 430 DEG C, and soaking time 150min cools to room temperature with the furnace later.
It is taken out after alloy pig is completely cooling, careful polishes off the oxide layer of alloy ingot surface, and is cleaned and air-dried,
Obtain erosion resistant titanium alloy.
Embodiment 5
By alloying component Ti-40Zr-0.04Pd (mass percent) ingredient, technical grade titanium sponge 54.92g, sponge are weighed
Zirconium 40g and pure palladium 0.08g are dipped in dehydrated alcohol, are air-dried after ultrasonic cleaning, and the water of non-consumable vacuum arc melting furnace is placed in
In cold copper crucible, the vacuum degree in furnace chamber will be extracted into 9 × 10-3Pa is hereinafter, be filled with high-purity argon gas as protection gas before electric arc melting
Afterwards, arc temperature is about 2500 DEG C or so when each melting, and smelting time is about 3 minutes or so, cold after each melting
But ingot casting is obtained, then overturning processing is carried out to ingot casting and carries out melting, with this melting-casting ingot casting melt back and overturning ingot casting 6
The secondary ingot casting ingredient finally obtained with guarantee is uniform.
It then takes out alloy cast ingot and is put into vacuum/atmosphere tube type furnace (limited public affairs of the Tianjin SK-G06143 middle ring experimental electric furnace
Department) in, solution treatment is carried out after being filled with protection gas argon gas：In 770 DEG C of heat preservation 55min, then from tube furnace take out and it is rapid
Carry out water quenching.
Then the alloy cast ingot after solution treatment is placed again into vacuum/atmosphere tube type furnace and is made annealing treatment, is controlled
The holding temperature of annealing is 415 DEG C, and soaking time 165min cools to room temperature with the furnace later.
It is taken out after alloy pig is completely cooling, careful polishes off the oxide layer of alloy ingot surface, and is cleaned and air-dried,
Obtain erosion resistant titanium alloy.
Embodiment 6
By alloying component Ti-50Zr-0.04Pd (mass percent) ingredient, technical grade titanium sponge 44.96g, sponge are weighed
Zirconium 50g and pure palladium 0.04g are dipped in dehydrated alcohol, are air-dried after ultrasonic cleaning, and the water of non-consumable vacuum arc melting furnace is placed in
In cold copper crucible, the vacuum degree in furnace chamber will be extracted into 9 × 10-3Pa is hereinafter, be filled with high-purity argon gas as protection gas before electric arc melting
Afterwards, arc temperature is about 2500 DEG C or so when each melting, and smelting time is about 3 minutes or so, cold after each melting
But ingot casting is obtained, then overturning processing is carried out to ingot casting and carries out melting, with this melting-casting ingot casting melt back and overturning ingot casting 7
The secondary ingot casting ingredient finally obtained with guarantee is uniform.
It then takes out alloy cast ingot and is put into vacuum/atmosphere tube type furnace (limited public affairs of the Tianjin SK-G06143 middle ring experimental electric furnace
Department) in, solution treatment is carried out after being filled with protection gas argon gas：In 750 DEG C of heat preservation 60min, then from tube furnace take out and it is rapid
Carry out water quenching.
Then the alloy cast ingot after solution treatment is placed again into vacuum/atmosphere tube type furnace and is made annealing treatment, is controlled
The holding temperature of annealing is 400 DEG C, and soaking time 180min cools to room temperature with the furnace later.
It is taken out after alloy pig is completely cooling, careful polishes off the oxide layer of alloy ingot surface, and is cleaned and air-dried,
Obtain erosion resistant titanium alloy.
Metallographic structure observation is carried out to the titanium alloy that Examples 1 to 6 obtains respectively, as a result respectively as shown in figs. 1 to 6.By
Fig. 1 is it is found that 1 gained titanium alloy of embodiment is by the mesh basket tissue of comparatively fine lath-shaped α ' phase composition；As shown in Figure 2, real
Apply the mesh basket tissue of the comparatively fine lath-shaped α ' phase composition of titanium alloy that example 2 obtains；From the figure 3, it may be seen that the titanium that embodiment 3 obtains
Alloy by comparatively fine lath-shaped α ' phase composition mesh basket tissue；As shown in Figure 4, the titanium alloy that embodiment 4 obtains is by tiny
Lath-shaped α ' phase composition mesh basket tissue, original β crystal boundary is high-visible and Original β grain is refined；As shown in Figure 5, real
Titanium alloy that example 5 obtains is applied by comparatively fine acicular α ' phase composition mesh basket tissue；It will be appreciated from fig. 6 that the titanium that embodiment 6 obtains
Alloy is by comparatively fine acicular α ' phase composition mesh basket tissue；In Fig. 1~6, original β crystal boundary is high-visible and Original β grain
Further refined.
Comparative example 1
It is Ti-0.04Pd titanium alloy that composition of alloy is prepared in the way of embodiment 1.
Titanium alloy made from Examples 1 to 6 and comparative example 1 is cut out into tensile sample as shown in FIG. 6 respectively with wire cutting,
Tension test is carried out, thus to obtain its mechanical property related data, test result is as shown in table 1.
The Mechanics Performance Testing and crystallite dimension result for the titanium alloy that 1 Examples 1 to 6 of table and comparative example 1 obtain
As shown in Table 1, make the surrender of alloy in the titanium alloy that the present invention obtains by the mesh basket tissue of lath-shaped α phase composition
Intensity, tensile strength are greatly improved, and promote amplitude up to 21.4~129.5% compared to comparative alloy yield strength,
Tensile strength promotes amplitude up to 9.4~116.6%.
Titanium alloy made from Examples 1 to 6 is cut out with wire cutting having a size of 10mm × 10mm × 2mm salt respectively simultaneously
Mist test sample, every piece of titanium alloy ingot cut out 5 samples, it is ensured that the repeatability of experiment；It is tested with the face 10mm × 10mm
Face, with bakelite powder to other in metallographic test pointing machine (XQ-1 of model Shanghai metallographic mechanical equipment Co., Ltd)
Non-test face is sealed processing, polishes after tested face is polishing to 3000# with sand paper after taking-up, cleans and dries up table
Face is examination with GB/T 10125-1997 then using salt mist tester (BY-120A, Beijing win space Xiang and reaches Instrument Ltd.)
It tests and carries out neutral salt spray test according in the case where concentration is 5% sodium chloride solution environment, it is successively right according to the testing standard in table 2
Sample cleaning, weighing, placement, observation, maintenance, adjustment etc., the test period is 1440 hours (two months), rotten thus to obtain it
Performance-related data is lost, test result is as shown in table 3.
Table 2：Salt spray test testing experiment standard of the present invention
The salt spray test test result for the titanium alloy that 3 Examples 1 to 6 of table and comparative example 1 obtain
As shown in Table 3, in the present invention, the increase of Zr content keeps its corrosion resistance more excellent, with same treatment technique
The comparative alloy (Ti-0.04Pd) of acquisition compares, resistance to corrosion in sodium chloride solution promoted amplitude up to 11.28~
66.29%.
As can be seen from the above embodiments, for the present invention by the content of control each element, tensile strength and yield strength are equal
It is improved significantly, is also significantly improved in the resistance to corrosion in sodium chloride solution.
The above is only a preferred embodiment of the present invention, it is not intended to limit the present invention in any form.It should
It points out, for those skilled in the art, without departing from the principle of the present invention, if can also make
Dry improvements and modifications, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (9)
1. a kind of erosion resistant titanium alloy, based on mass content, including Pd 0.04~0.25%, Zr (0,50%] and surplus Ti.
2. erosion resistant titanium alloy according to claim 1, which is characterized in that the erosion resistant titanium alloy includes Pd 0.04
~0.25%, the Ti of Zr 5~40% and surplus.
3. erosion resistant titanium alloy according to claim 1 or 2, which is characterized in that the erosion resistant titanium alloy contains lath
The mesh basket tissue of shape α ' phase composition；The width of the lath-shaped α ' phase is 0.62~3.99 μm.
4. the preparation method of erosion resistant titanium alloy described in claims 1 to 3 any one, which is characterized in that including following step
Suddenly：
(1) cast alloy base will be obtained after alloy raw material melting；
(2) the cast alloy base for obtaining the step (1) carries out solution treatment, obtains solid solution state base；
(3) the solid solution state base that the step (2) obtains is made annealing treatment, obtains erosion resistant titanium alloy.
5. the preparation method according to claim 4, which is characterized in that melting is vacuum arc melting in the step (1),
The temperature of the vacuum arc melting is 2000~2500 DEG C.
6. preparation method according to claim 4 or 5, which is characterized in that melting is repeated 5 times in the step (1)
More than.
7. the preparation method according to claim 4, which is characterized in that the holding temperature of solution treatment in the step (2)
It is 750~900 DEG C, the soaking time of solution treatment is 60~90min, and the type of cooling of solution treatment is water quenching.
8. the preparation method according to claim 4, which is characterized in that the insulating process of step (2) solution treatment and
The insulating process made annealing treatment in step (3) independently carries out under protective atmosphere.
9. the preparation method according to claim 4, which is characterized in that the holding temperature made annealing treatment in the step (3)
It is 400~500 DEG C, the soaking time of annealing is 2~3h, and the type of cooling of annealing is cold with furnace.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109936A (en) * | 1985-11-08 | 1987-05-21 | Nippon Mining Co Ltd | Titanium alloy having superior corrosion resistance |
| JPH0741889A (en) * | 1991-09-27 | 1995-02-10 | Agency Of Ind Science & Technol | Titanium alloy for living body |
| JP2001003127A (en) * | 1999-04-23 | 2001-01-09 | Terumo Corp | Ti-Zr ALLOY |
| EP1318204A1 (en) * | 2001-12-04 | 2003-06-11 | SHERA-Werkstofftechnologie GmbH & Co.KG | Titanium-Zirconium alloy |
| CN1570167A (en) * | 2004-04-29 | 2005-01-26 | 大连盛辉钛业有限公司 | Medical titanium alloy for teeth outer part |
| CN101886189A (en) * | 2010-04-08 | 2010-11-17 | 厦门大学 | Beta titanium alloy and preparation method thereof |
| CN103602840A (en) * | 2013-11-05 | 2014-02-26 | 燕山大学 | Preparation method of titanium zirconium base alloy |
| CN107746995A (en) * | 2017-10-19 | 2018-03-02 | 宝鸡市金海源钛标准件制品有限公司 | A kind of medical titanium alloy and preparation method thereof |
-
2018
- 2018-08-03 CN CN201810876100.9A patent/CN108893629B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62109936A (en) * | 1985-11-08 | 1987-05-21 | Nippon Mining Co Ltd | Titanium alloy having superior corrosion resistance |
| JPH0741889A (en) * | 1991-09-27 | 1995-02-10 | Agency Of Ind Science & Technol | Titanium alloy for living body |
| JP2001003127A (en) * | 1999-04-23 | 2001-01-09 | Terumo Corp | Ti-Zr ALLOY |
| EP1318204A1 (en) * | 2001-12-04 | 2003-06-11 | SHERA-Werkstofftechnologie GmbH & Co.KG | Titanium-Zirconium alloy |
| CN1570167A (en) * | 2004-04-29 | 2005-01-26 | 大连盛辉钛业有限公司 | Medical titanium alloy for teeth outer part |
| CN101886189A (en) * | 2010-04-08 | 2010-11-17 | 厦门大学 | Beta titanium alloy and preparation method thereof |
| CN103602840A (en) * | 2013-11-05 | 2014-02-26 | 燕山大学 | Preparation method of titanium zirconium base alloy |
| CN107746995A (en) * | 2017-10-19 | 2018-03-02 | 宝鸡市金海源钛标准件制品有限公司 | A kind of medical titanium alloy and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会: "《中华人民共和国国家标准 钛及钛合金牌号和化学成分》", 30 December 2016 * |
| 蒋晓军: "高强度TiZrAl合金的制备及组织性能研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
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