CN108950304A - One kind titanium alloy of TB6 containing zirconium and preparation method thereof - Google Patents
One kind titanium alloy of TB6 containing zirconium and preparation method thereof Download PDFInfo
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- CN108950304A CN108950304A CN201810876195.4A CN201810876195A CN108950304A CN 108950304 A CN108950304 A CN 108950304A CN 201810876195 A CN201810876195 A CN 201810876195A CN 108950304 A CN108950304 A CN 108950304A
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C14/00—Alloys based on titanium
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- C22C1/02—Making non-ferrous alloys by melting
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Abstract
The present invention provides one kind titanium alloys of TB6 containing zirconium, by mass percentage, including following components: Ti 34%~76%, Zr 10%~50%, V 9.0%~11%, Fe1.6%~2.2%, Al 2.6%~3.4%.In the present invention, the addition of the Zr element can effectively inhibit the generation for being insulated and being tempered ω phase, Zr and Ti belong to the IVth B race, and outermost electron arrangement mode having the same and similar mechanics and physical and chemical performance, nearly β phase according to the present invention contain zirtan with higher intensity and preferable plasticity.Record according to the embodiment, for the titanium alloy of TB6 containing zirconium of the present invention compared with the Ti-10V-2Fe-3Al titanium alloy of actual measurement, tensile strength maximum can be improved 47.56%.
Description
Technical field
The present invention relates to technical field of alloy, more particularly to one kind titanium alloy of TB6 containing zirconium and preparation method thereof.
Background technique
Titanium alloy T B6 belongs to the titanium alloy of nearly β type, because of itself and high specific strength, fabulous fracture toughness, good creep
With excellent corrosion resistance, the fields such as aerospace, biomedicine are widely applied to, but TB6 alloy passes through low temperature aging
Brittleness ω phase is easily precipitated afterwards, therefore deteriorating alloy plasticity should strongly avoid in actual operation.
Summary of the invention
The purpose of the present invention is to provide a kind of titanium alloy of TB6 containing zirconium and preparation method thereof with preferable plasticity.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides one kind titanium alloys of TB6 containing zirconium, by mass percentage, including following components:
Preferably, by mass percentage, the titanium alloy of TB6 containing zirconium includes following components:
The present invention also provides the preparation methods of the titanium alloy of TB6 containing zirconium described in above-mentioned technical proposal, comprising the following steps:
Alloy raw material is subjected to melting according to the composition proportion of the titanium alloy of TB6 containing zirconium, obtains alloy cast ingot；
The alloy cast ingot is subjected to hot rolling, obtains the titanium alloy of TB6 containing zirconium.
Preferably, the temperature of the melting is 2400~2600 DEG C, and the time of melting is 12~24 minutes.
Preferably, the melting carries out under inert atmosphere protection, and the pressure of the inert atmosphere is 0.04~
0.08MPa。
Preferably, the hot rolling is 4~6 passes, and the total deformation of hot rolling is 60%~70%.
Preferably, the temperature rolled per pass independently is 790~850 DEG C, and the time rolled per pass independently is 3~
7min。
The present invention provides one kind titanium alloys of TB6 containing zirconium, by mass percentage, including following components: Ti 34%~
76%, Zr 10%~50%, V 9.0%~11%, Fe1.6%~2.2%, Al 2.6%~3.4%.In the present invention, institute
The addition for stating Zr element can effectively inhibit the generation for being insulated and being tempered ω phase, and Zr and Ti belong to the IVth B race, and having the same
Outermost electron arrangement mode and similar mechanics and physical and chemical performance, nearly β phase according to the present invention, which contains zirtan, to be had more
High intensity and preferable plasticity.Record according to the embodiment, the Ti- of TB6 containing zirconium titanium alloy and actual measurement of the present invention
10V-2Fe-3Al titanium alloy is compared, and tensile strength maximum can be improved 47.56%.
Detailed description of the invention
Fig. 1 is tensile sample dimensional drawing of the invention；
Fig. 2 is the metallographic optical microscopy map for the titanium alloy of TB6 containing zirconium that embodiment 1 is prepared；
Fig. 3 is the metallographic optical microscopy map for the titanium alloy of TB6 containing zirconium that embodiment 2 is prepared；
Fig. 4 is the metallographic optical microscopy map for the titanium alloy of TB6 containing zirconium that embodiment 3 is prepared；
Fig. 5 is the metallographic optical microscopy map for the titanium alloy of TB6 containing zirconium that embodiment 4 is prepared；
Fig. 6 is the metallographic optical microscopy map for the titanium alloy of TB6 containing zirconium that embodiment 5 is prepared.
Specific embodiment
The present invention provides one kind titanium alloys of TB6 containing zirconium, by mass percentage, including following components:
In the present invention, if without specified otherwise, all raw material components are commercial product well known to those skilled in the art.
Based on mass percentage, the titanium alloy of TB6 containing zirconium of the present invention contains 34%~76% Ti, preferably
45%~65%, more preferably 50%~60%.
Based on mass percentage, the titanium alloy of TB6 containing zirconium of the present invention contains 10%~50% Zr, preferably
20%~40%, more preferably 25%~35%.
In the present invention, the Zr can form unlimited solid solution with Ti, improve the intensity and plasticity of alloy.Zr element
It causes blunt current potential more negative compared with Ti, even if can still be passivated under weak oxide environment, improves Surface Creation dense oxidation film
Ability improves the corrosion resistance of alloy.In the present invention, the Zr content can realize Zr and two kinds of members of Ti within the above range
Complementation of the element in mechanical property and corrosion resistance can promote the mechanical property and corrosion resistant of alloy by solid solution strengthening effect
Corrosion energy.
Based on mass percentage, the titanium alloy of TB6 containing zirconium of the present invention contains 9.0%~11% V, preferably
9.5%~10.5%, more preferably 9.8%~10.2%.
In the present invention, the vanadium reduces the phase transition temperature of alloy, and alloy is made to form the ability enhancing of β phase, enhancing
The harden ability and hot-working strengthening effect of titanium alloy.
Based on mass percentage, the titanium alloy of TB6 containing zirconium of the present invention contains 1.6%~2.2% Fe, preferably
1.7%~2.1%, more preferably 1.9%~2.0%.
In the present invention, low-alloyed elasticity modulus can drop in the addition of the iron, promote the mechanical property of alloy, and show
Write the wear-resisting property for improving alloy.
Based on mass percentage, the titanium alloy of TB6 containing zirconium of the present invention contains 2.6%~3.4% Al, preferably
2.8%~3.2%, more preferably 2.9%~3.1%.
In the present invention, the aluminium can greatly improve the specific strength of titanium alloy.In the present invention, Zr element is largely added
The heat resistance of alloy can be improved, to supply the shortcomings that heat resistance declines after V element adds.The addition of Mo can supply greatly
Spot corrosion after measuring Zr addition is endangered and is influenced.The generation of ω phase can be effectively suppressed in the addition of Al and Zr.The present invention also provides upper
State the preparation method of the titanium alloy of TB6 containing zirconium described in technical solution, comprising the following steps:
Alloy raw material is subjected to melting according to the composition proportion of the titanium alloy of TB6 containing zirconium, obtains alloy cast ingot；
The alloy cast ingot is subjected to hot rolling, obtains the titanium alloy of TB6 containing zirconium.
Alloy raw material is carried out melting according to the composition proportion of the titanium alloy of TB6 containing zirconium by the present invention, obtains alloy cast ingot.
The present invention does not have special restriction to the type of the alloy raw material, is used for molten alloy using well known to those skilled in the art
Alloy raw material.In the present invention, the alloy raw material preferably includes titanium, zirconium, vanadium and iron and aluminium.The present invention is to the conjunction
The form and purity of golden raw material do not have any special restriction, using commercial product well known to those skilled in the art.?
In the present invention, the titanium can be selected specifically to technical grade titanium sponge；The zirconium can be specifically chosen sponge zirconium；The vanadium can be with
It is selected specifically to pure vanadium；The iron can be selected specifically to pure iron；The aluminium can be selected specifically to fine aluminium.
In the present invention, preferably the alloy raw material is pre-processed before carrying out the melting, the pretreatment
Preferably the alloy raw material is ultrasonically treated in organic solvent.In the present invention, the organic solvent is preferably nothing
Water-ethanol.Operation no any special restriction of the present invention to the ultrasound, using ultrasound well known to those skilled in the art
Process ultrasound simultaneously achievees the purpose that clean alloy raw material.After the completion of ultrasound, the present invention is preferably to the alloy after the ultrasound
Raw material carries out air-dried.The present invention air-dries no any special restriction to described, is air-dried using well known to those skilled in the art
Condition.
In the present invention, the temperature of the melting is preferably 2400~2600 DEG C, more preferably 2450~2550 DEG C, optimal
It is selected as 2480~2520 DEG C；The time of the melting is preferably 12~24 minutes, more preferably 15~20 minutes, most preferably 16
~18 minutes.
In the present invention, the melting preferably carries out under inert atmosphere protection；The present invention does not have the inert atmosphere
Any special restriction, using inert atmosphere well known to those skilled in the art；The pressure of the inert atmosphere is preferably
0.04~0.08MPa, more preferably 0.05~0.07MPa；In the present invention, preferably first to melting ring before being filled with inert gas
Border vacuumizes, and the vacuum degree of the vacuum is preferably 3 × 10-3Pa~7 × 10-3Pa, more preferably 4 × 10-3Pa~6 × 10- 3Pa。
The present invention, by ingot overturning, then carries out melting next time preferably after each melting time, in the present invention, described
The number of melting is preferably 4~8 times, and more preferably 5~6 times；The time of each melting is preferably 2~4 minutes, more preferably
It is 2.5~3.5 minutes, most preferably 2.8~3.2 minutes.In the present invention, the overturning can guarantee the ingredient of alloy cast ingot
More evenly.
The present invention does not have special restriction to the specific method of the melting, using melting well known to those skilled in the art
The method of titanium alloy carries out melting.Can specifically be selected as non-consumable Vacuum Arc melting in the present invention, it is described it is non-from
The operating current of consumption Vacuum Arc melting can be selected specifically to 500A.
After obtaining alloy cast ingot, the alloy cast ingot is carried out hot rolling by the present invention, obtains the titanium alloy of TB6 containing zirconium.In this hair
In bright, the hot rolling is preferably 4~6 passes, more preferably 5 passages；In the present invention, the temperature rolled per pass
It is independently preferably 790~850 DEG C, more preferably 800~840 DEG C, most preferably 810~830 DEG C；It is described per pass to roll
Time is independently preferably 3~7min, more preferably 4~6min, most preferably 4.5~5.5min.In the present invention, the heat
The total deformation rolled is preferably 60%~70%, and more preferably 62%~68%, most preferably 64%~66%.
Before carrying out hot rolling, the alloy cast ingot is preferably heat-treated by the present invention, and the heat treatment is preferably by institute
The temperature that alloy cast ingot is heated to the hot rolling is stated, and keeps the temperature 0.2~1 hour, preferably 0.4~0.8 hour, more preferably
0.5~0.6 hour.In the present invention, the heating rate of the heating is preferably 8~12 DEG C/min, more preferably 9~11 DEG C/
min。
In the present invention, the machining property of alloy can be improved in the multi- pass rolling.
After the completion of hot rolling, the present invention preferably successively cools down the product of the hot rolling, and polishing obtains the titanium of TB6 containing zirconium
Alloy.The present invention any special restriction no to the cooling will be closed using cooling procedure well known to those skilled in the art
Gold is cooled to room temperature；For the present invention to the no any special restriction of polishing, use is well known to those skilled in the art
Bruting process polishes to alloy and achievees the purpose that the oxide layer for removing alloy ingot surface.
Titanium alloy of TB6 containing zirconium provided by the invention and preparation method thereof is described in detail below with reference to embodiment,
But they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
76g technical grade titanium sponge, 10g sponge zirconium, the pure vanadium of 9.4g, 2.0g pure iron, 2.6g fine aluminium are dipped in dehydrated alcohol,
Drying in air after ultrasonic cleaning；
Pretreated above-mentioned raw materials are put into the water jacketed copper crucible in non-consumable Vacuum Arc smelting furnace, are in vacuum degree
5×10-3Pa, pressure is carries out non-consumable vacuum melting under the nitrogen atmosphere of 0.06MPa, smelting temperature is 2500 DEG C, melting
Operating current in journey is 500A, is overturn ingot casting six times, and every overturning is primary, melting 3 minutes, obtains alloy cast ingot.
Alloy cast ingot is put into Muffle furnace and is warming up to 850 DEG C with the rate of heat addition of 10 DEG C/min, and after heat preservation 0.5 hour
It takes out rapidly and carries out rolling deformation on double-roll rolling mill, rolling temperature is 850 DEG C, and using multi-pass deformation, each drafts is
2mm, the final deformation amount of alloy reach 65%, ingot casting deform per pass between keep the temperature 5 minutes at 850 DEG C, final thickness is
5mm, it is cooling after last time deforms, it polishes the superficial oxidation layer of alloy sheets clean, the titanium alloy of TB6 containing zirconium is made.
Fig. 2 is the metallographic microstructure figure for the high strength titanium alloy that the present embodiment is prepared, as shown in Figure 2, described to contain
Zirconium TB6 titanium alloy is mainly made of coarse β crystal grain, and after hot rolling processing, Original β grain occurs to be crushed, and realizes refinement
The purpose of crystal grain, makes mechanical property get a promotion.
Embodiment 2
66.6g technical grade titanium sponge, 20g sponge zirconium, the pure vanadium of 9.0g, 1.6g pure iron, 2.8g fine aluminium are dipped in dehydrated alcohol
In, drying in air after ultrasonic cleaning；
Pretreated above-mentioned raw materials are put into the water jacketed copper crucible in non-consumable Vacuum Arc smelting furnace, are in vacuum degree
5×10-3Pa, pressure is carries out non-consumable vacuum melting under the nitrogen atmosphere of 0.06MPa, smelting temperature is 2500 DEG C, melting
Operating current in journey is 500A, is overturn ingot casting six times, and every overturning is primary, melting 3 minutes, obtains alloy cast ingot.
Alloy cast ingot is put into Muffle furnace and is warming up to 830 DEG C with the rate of heat addition of 10 DEG C/min, and after heat preservation 0.5 hour
It takes out rapidly and carries out rolling deformation on double-roll rolling mill, rolling temperature is 830 DEG C, and using multi-pass deformation, each drafts is
2mm, the final deformation amount of alloy reach 65%, ingot casting deform per pass between keep the temperature 5 minutes at 830 DEG C, final thickness is
5mm, it is cooling after last time deforms, it polishes the superficial oxidation layer of alloy sheets clean, the titanium alloy of TB6 containing zirconium is made.
Fig. 3 is the metallographic microstructure figure for the high strength titanium alloy that the present embodiment is prepared, from the figure 3, it may be seen that described contain
Zirconium TB6 titanium alloy is mainly made of more coarse β crystal grain, and Original β grain is refined after Zr addition, and microscopic structure obtains
Improve, original after hot rolling processing, Original β grain occurs to be crushed, and realizes the purpose of refinement crystal grain, obtains mechanical property
It is promoted.
Embodiment 3
54.8g technical grade titanium sponge, 30g sponge zirconium, the pure vanadium of 10.0g, 2.2g pure iron, 3.0g fine aluminium are dipped in dehydrated alcohol
In, drying in air after ultrasonic cleaning；
Pretreated above-mentioned raw materials are put into the water jacketed copper crucible in non-consumable Vacuum Arc smelting furnace, are in vacuum degree
5×10-3Pa, pressure is carries out non-consumable vacuum melting under the nitrogen atmosphere of 0.06MPa, smelting temperature is 2500 DEG C, melting
Operating current in journey is 500A, is overturn ingot casting six times, and every overturning is primary, melting 3 minutes, obtains alloy cast ingot.
Alloy cast ingot is put into Muffle furnace and is warming up to 810 DEG C with the rate of heat addition of 10 DEG C/min, and after heat preservation 0.5 hour
It takes out rapidly and carries out rolling deformation on double-roll rolling mill, rolling temperature is 810 DEG C, and using multi-pass deformation, each drafts is
2mm, the final deformation amount of alloy reach 65%, ingot casting deform per pass between keep the temperature 5 minutes at 810 DEG C, final thickness is
5mm, it is cooling after last time deforms, it polishes the superficial oxidation layer of alloy sheets clean, the titanium alloy of TB6 containing zirconium is made.
Fig. 4 is the metallographic microstructure figure for the high strength titanium alloy that the present embodiment is prepared, as shown in Figure 4, described to contain
Zirconium TB6 titanium alloy is mainly made of β crystal grain, Zr addition after, Original β grain is further refined, microscopic structure obtain into
One step improves, and original after hot rolling processing, Original β grain occurs to be crushed, and the addition together with Zr element realizes refinement crystal grain
Purpose, so that mechanical property is got a promotion.
Embodiment 4
45g technical grade titanium sponge, 40g sponge zirconium, the pure vanadium of 10.5g, 1.8g pure iron, 2.7g fine aluminium are dipped in dehydrated alcohol
In, drying in air after ultrasonic cleaning；
Pretreated above-mentioned raw materials are put into the water jacketed copper crucible in non-consumable Vacuum Arc smelting furnace, are in vacuum degree
5×10-3Pa, pressure is carries out non-consumable vacuum melting under the nitrogen atmosphere of 0.06MPa, smelting temperature is 2500 DEG C, melting
Operating current in journey is 500A, is overturn ingot casting six times, and every overturning is primary, melting 3 minutes, obtains alloy cast ingot.
Alloy cast ingot is put into Muffle furnace and is warming up to 800 DEG C with the rate of heat addition of 10 DEG C/min, and after heat preservation 0.5 hour
It takes out rapidly and carries out rolling deformation on double-roll rolling mill, rolling temperature is 800 DEG C, and using multi-pass deformation, each drafts is
2mm, the final deformation amount of alloy reach 65%, ingot casting deform per pass between keep the temperature 5 minutes at 800 DEG C, final thickness is
5mm, it is cooling after last time deforms, it polishes the superficial oxidation layer of alloy sheets clean, the titanium alloy of TB6 containing zirconium is made.
Fig. 5 is the metallographic microstructure figure for the high strength titanium alloy that the present embodiment is prepared, as shown in Figure 5, described to contain
Zirconium TB6 titanium alloy is mainly made of β crystal grain, Zr addition after, Original β grain is further refined, microscopic structure obtain into
One step improves, and original after hot rolling processing, Original β grain occurs to be crushed, and the addition together with Zr element realizes refinement crystal grain
Purpose, so that mechanical property is got a promotion.
Embodiment 5
34g technical grade titanium sponge, 50g sponge zirconium, the pure vanadium of 11g, 1.6g pure iron, 3.4g fine aluminium are dipped in dehydrated alcohol,
Drying in air after ultrasonic cleaning；
Pretreated above-mentioned raw materials are put into the water jacketed copper crucible in non-consumable Vacuum Arc smelting furnace, are in vacuum degree
5×10-3Pa, pressure is carries out non-consumable vacuum melting under the nitrogen atmosphere of 0.06MPa, smelting temperature is 2500 DEG C, melting
Operating current in journey is 500A, is overturn ingot casting six times, and every overturning is primary, melting 3 minutes, obtains alloy cast ingot.
Alloy cast ingot is put into Muffle furnace and is warming up to 790 DEG C with the rate of heat addition of 10 DEG C/min, and after heat preservation 0.5 hour
It takes out rapidly and carries out rolling deformation on double-roll rolling mill, rolling temperature is 790 DEG C, and using multi-pass deformation, each drafts is
2mm, the final deformation amount of alloy reach 65%, ingot casting deform per pass between keep the temperature 5 minutes at 790 DEG C, final thickness is
5mm, it is cooling after last time deforms, it polishes the superficial oxidation layer of alloy sheets clean, the titanium alloy of TB6 containing zirconium is made.
Fig. 6 is the metallographic microstructure figure for the high strength titanium alloy that the present embodiment is prepared, it will be appreciated from fig. 6 that described contain
Zirconium TB6 titanium alloy is mainly made of comparatively fine β crystal grain, and after Zr addition, Original β grain refinement is significant, and microscopic structure obtains
To greatly improving, original after hot rolling processing, Original β grain occurs to be crushed, and the addition together with Zr element realizes refinement crystalline substance
The purpose of grain, makes mechanical property get a promotion.
Embodiment 6
The titanium alloy of TB6 containing zirconium that Examples 1 to 5 is prepared is cut out using wire cutting to the stretching sample with a thickness of 2mm
(GBT228-2002), each sample at least cuts out 3 tensile samples as shown in Figure 1, it is ensured that the repeatability of data carries out
Tension test, and its mechanical property related data is obtained, it is measured using room temperature uniaxial tensile test, measuring instrument model
The universal testing machine of Instron5982, the whole stretching displacement with extensometer detection sample, rate of extension is set as 5 ×
10-3s-1.Its mechanical experimental results is as shown in table 1:
Table 1: the Mechanics Performance Testing for the titanium alloy of TB6 containing zirconium that Examples 1 to 5 is prepared
As shown in Table 1, high strength titanium alloy of the present invention resists compared with the Ti-10V-2Fe-3Al titanium alloy of actual measurement
Tensile strength maximum improves 47.56%.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. one kind titanium alloy of TB6 containing zirconium, by mass percentage, including following components:
2. the titanium alloy of TB6 containing zirconium as described in claim 1, which is characterized in that by mass percentage, including following components:
3. the preparation method of the titanium alloy of TB6 containing zirconium of any of claims 1 or 2, comprising the following steps:
Alloy raw material is subjected to melting according to the composition proportion of the titanium alloy of TB6 containing zirconium, obtains alloy cast ingot；
The alloy cast ingot is subjected to hot rolling, obtains the titanium alloy of TB6 containing zirconium.
4. preparation method as claimed in claim 3, which is characterized in that the temperature of the melting is 2400~2600 DEG C, described
The time of melting is 12~24 minutes.
5. preparation method as claimed in claim 3, which is characterized in that the melting carries out under inert atmosphere protection, described
The pressure of inert atmosphere is 0.04~0.08MPa.
6. preparation method as claimed in claim 3, which is characterized in that the hot rolling is 4~6 passes, total change of hot rolling
Shape amount is 60%~70%.
7. preparation method as claimed in claim 6, which is characterized in that the temperature rolled per pass independently is 790~850
DEG C, the time rolled per pass independently is 3~7min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113186426A (en) * | 2021-05-06 | 2021-07-30 | 河北科技大学 | Zirconium-based composite material and preparation method thereof |
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| CN107746991A (en) * | 2017-09-29 | 2018-03-02 | 北京金宇顺达科技股份有限公司 | A kind of titanium alloy and preparation method thereof |
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| Title |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113186426A (en) * | 2021-05-06 | 2021-07-30 | 河北科技大学 | Zirconium-based composite material and preparation method thereof |
| CN113186426B (en) * | 2021-05-06 | 2022-02-11 | 河北科技大学 | Zirconium-based composite material and preparation method thereof |
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Application publication date: 20181207 |