CN107746989A - A kind of superhigh intensity Ti Al Zr Mo Cr system's beta-titanium alloys and its Technology for Heating Processing - Google Patents
A kind of superhigh intensity Ti Al Zr Mo Cr system's beta-titanium alloys and its Technology for Heating Processing Download PDFInfo
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Abstract
A kind of superhigh intensity Ti Al Zr Mo Cr system's beta-titanium alloys and its Technology for Heating Processing, Ti Al Zr Mo Cr systems beta-titanium alloy is subjected to solution treatment, then carries out Ageing Treatment；Wherein, Ti Al Zr Mo Cr systems beta-titanium alloy by weight percentage, includes 4.5~5.5% Al, 3.5~4.5% Zr, 9.5~10.5% Mo and 2.5~3.5% Cr, surplus Ti.Alloy of the present invention can obtain the intensity of superelevation after melting, forging and strenthen-toughening mechanizm while have plasticity concurrently.Alloy of the present invention adds a certain amount of neutral element Zr again while Al is added so that α phases obtain further reinforcing；The addition of high quality percentage Mo elements is strengthening β matrixes.Further, since Mo low diffusion rate, it can also reduce temperature sensitivity of the alloy when two-phase section forges, and expand alloy process window.
Description
Technical field
The invention belongs to technical field of alloy material, and in particular to a kind of superhigh intensity Ti-Al-Zr-Mo-Cr systems β titaniums close
Gold and its Technology for Heating Processing.
Technical background
Since first commercial beta-titanium alloy Ti-13-11-3 of nineteen fifty-two is born and is successfully applied to SR-71 blackbird opportunities of combat,
Beta-titanium alloy due to its have high intensity, excellent plasticity and toughness matching and good cold forming capability be constantly subjected to it is both domestic and external
Extensive concern.Especially near β and metastable beta alloy, it has the performance advantage of two phase alloys and beta alloy concurrently, in work nearly ten years
Quickly development is obtained in industry application.
The high-strength alloy of early stage mostly has higher Mo equivalents, and the α of Dispersed precipitate is obtained by solid solution plus Ageing Treatment
Mutually so as to reinforced alloys.It is typical to represent β-C alloy, the Ti-15-3 alloys for having west, and TB2, TB3 alloy of China.This
Class alloy is due to high beta stable element content, easy the defects of forming segregation and β spots in fusion process, while in timeliness mistake
In journey formed grain boundary α phase and without separate out area (PFZ) tendency it is strong.In recent years using VT-22, Ti5553, TB10 and β-CEZ as generation
The new beta alloy of table effectively overcomes above mentioned problem.By reducing the easily segregation element content such as Cr, Fe and controlling smelter
Skill so that the formability of β spots substantially reduces.Meanwhile low Mo equivalents improve α phase nuclear driving forces, when changing alloy
Imitate dynamics so that α phases are evenly distributed, so as to obtain excellent mechanical property.However, by taking Ti-5553 alloys as an example, should
Alloy has excellent strong plasticity matching and fatigue behaviour in 1200MPa ranks, with the further rise of alloy strength, modeling
Property is remarkably decreased.The TB10 alloys of the domestic coloured institute's research and development in Beijing pass through appropriate Technology for Heating Processing RmIt can reach 1300MPa levels
Not, it has been successfully applied in the orbital cabin of Divine Land two and satellite and the rocket connection system, but in the Service Environment of higher intensity, its
Using also restrained.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of superhigh intensity Ti-Al-Zr-Mo-Cr systems β titaniums
Alloy and its Technology for Heating Processing.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy, by weight percentage, including 4.5~5.5%
Al, 3.5~4.5% Zr, 9.5~10.5% Mo and 2.5~3.5% Cr, surplus be Ti and inevitably it is miscellaneous
Prime element.
The improvement that the present invention enters one is, by weight percentage, includes 5~5.1% Al, 4.06~4.15%
Zr, 9.8%~10% Mo, 3.03~3.15% Cr, surplus are Ti and inevitable impurity.
The improvement that the present invention enters one is, when Ti-Al-Zr-Mo-Cr systems beta-titanium alloy being carried out into solution treatment, then being carried out
Effect processing.
The improvement that the present invention enters one is, carries out solution treatment, then carries out the detailed process of Ageing Treatment and be：In two-phase
The progress 3h solution treatment of 780~800 DEG C of area, water quenching to room temperature, then carries out 8 hours timeliness at 580~600 DEG C.
The improvement that the present invention enters one is, carries out solution treatment, then carries out the detailed process of Ageing Treatment and be：Exist first
Progress 40~45min the solution treatment of 865~885 DEG C of monophase field, then slowly cools to 580~600 with 3~5 DEG C/min cooling rates
DEG C, and it is incubated 6~8h.
The improvement that the present invention enters one is that Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made by the following method：Select phase
The raw material answered, using cold crucible levitation melting method, enter stove and to carry out multiple smelting in suspension and obtain ingot casting, ingot casting by raw material is in bulk
Cogging forging, high temperature forging and heat treatment after forging are carried out after stripping off the skin and cutting rising head and obtains Ti-Al-Zr-Mo-Cr systems β titaniums
Alloy.
The improvement that the present invention enters one is that Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made by the following method：By Ti-
32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al and titanium sponge, sponge zirconium it is well mixed according to proportioning and it is in bulk enter stove, with
After carry out cold crucible levitation melting, be passed through argon gas in fusion process, induced-current is 350~400A, power frequency is 20~
25KHz, continue 3~5min of holding after alloy is completely melt, cooling obtains ingot casting, then carries out cogging forging and height to ingot casting
Warm forging is made, and obtains Ti-Al-Zr-Mo-Cr systems beta-titanium alloy.
The improvement that the present invention enters one is that the cogging temperature of cogging forging is 1020~1050 DEG C, and soaking time is
90min, deflection are not less than 60%.
The improvement that the present invention enters one is that the temperature of high temperature forging is 930~950 DEG C, and deflection is not less than 50%.
Compared with prior art, the invention has the advantages that：
The present invention is designed a kind of new by critical Mo Equivalent methods and the d electron theories based on first-principles calculations
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy, the alloy can obtain superhigh intensity and suitable plasticity after appropriate heat treatment,
Its room temperature tensile intensity RmNot less than 1500MPa, elongation after fracture A is 11%.Alloy is adding 4.5~5.5% mass fractions
While Al, the Zr elements for being also added into 3.5~4.5% mass fractions further strengthen α phases.Under normal circumstances, beta-titanium alloy is near
Deformation start from the preferential slidings of isometric α phases, stress concentration is then produced at boundary, so as to open the sliding in β matrixes.
By Al, Zr complex intensifying, the stress level that isometric α phases in alloy start deformation can be improved, so as to obtain high intensity.Simultaneously
Isomorphism beta stable element Mo containing 9.5~10.5% mass fractions in alloy.Due to Mo diffusion speed low in bcc-Ti
Rate, temperature sensitivity of the alloy when two-phase section forges can be reduced, expand alloy process window, reduce organizational controls difficulty.
Other Mo addition inhibits the generation of Ti-Cr eutectoid reactions, improves alloy heat endurance.
The present invention by Ti-Al-Zr-Mo-Cr systems beta-titanium alloys by carrying out solution treatment, then carries out Ageing Treatment, can obtain
The intensity of superelevation has plasticity concurrently simultaneously.Alloy of the present invention adds a certain amount of neutral element Zr again while Al is added so that α
Mutually obtain further strengthen；The addition of high quality percentage Mo elements is strengthening β matrixes.Further, since Mo low diffusion
Speed, it can also reduce temperature sensitivity of the alloy when two-phase section forges, and expand alloy process window.
Further, alloy first in two-phase section solution treatment, water cooling, then carries out timeliness, air cooling after forging；The present invention is logical
The composite construction of isometric α phases, corynebacterium α phases and small and dispersed lenticular α phases, the conjunction of such a tissue can be obtained by crossing above-mentioned technique
The gold not only intensity with superelevation but also with good plasticity.
Further, alloy carries out monophase field solution treatment first after forging, proper temperature is slowly cooled to stove, with laggard
Row timeliness, air cooling (BASCA techniques).The present invention can obtain thick sheet α phases by above-mentioned Technology for Heating Processing, in coarse alpha piece
Tiny α phases are separated out between layer, the alloy of such a tissue has higher intensity and acceptable plasticity.
Brief description of the drawings
Fig. 1 is dissolved for 790 DEG C/3h of alloy, the microscopic structure after 600 DEG C/8h timeliness.
Fig. 2 is dissolved for 790 DEG C/3h of alloy, the Typical tensile curve of 600 DEG C/8h timeliness.
Fig. 3 is dissolved for 790 DEG C/3h of alloy, the stretching fracture of 600 DEG C/8h timeliness.
Fig. 4 is the microscopic structure after alloy BASCA techniques.
Fig. 5 is the stretching fracture after alloy BASCA techniques.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Titanium alloy of the present invention can obtain excellent strong plasticity matching, its room temperature by appropriate strenthen-toughening mechanizm technique
Tensile strength RmNot less than 1500MPa, elongation after fracture A is 11%.
The strong beta-titanium alloy of superelevation of the present invention is made up of the composition of following percentage by weight：4.5~5.5% Al, 3.5~
4.5% Zr, 9.5~10.5% Mo and 2.5~3.5% Cr, surplus are Ti and inevitable impurity element.
Preferably, it is made up of the composition of following percentage by weight：5~5.1% Al, 4.06~4.15% Zr, 9.8%
~10% Mo, 3.03~3.15% Cr, surplus are Ti and inevitable impurity.
The preparation method of the strong beta-titanium alloy of superelevation of the present invention comprises the following steps：Used different from conventional titanium alloy smelting
Vacuum consumable electrode arc furnace (VAR), the present invention use advanced cold crucible levitation melting method (CCLM).Selected according to being actually needed
Type of feed is selected, calculates and raw material proportioning and is well mixed according to alloying component, raw material is in bulk to enter stove and to carry out 3 smelting in suspension and obtain
Obtain ingot casting.Ingot casting carries out cogging, high temperature forging and heat treatment after forging after stripping off the skin and cutting rising head and obtains superstrength alloy
Sheet material.
Specifically, the raw material involved by the alloy melting includes：Al-Mo, Ti-Mo intermediate alloy, pure Cr, fine aluminium beans, 0 grade
Titanium sponge and sponge zirconium.It is first according to design composition, by Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al, titanium sponge
And sponge zirconium carry out alloying ingredient, be well mixed after it is in bulk enter stove, followed by cold crucible vacuum levitation melting (CCLM) skill
Art carries out alloy melting.It is passed through 400MPa high-purity argon gas in fusion process, induced-current is 350~400A, power frequency 20
~25KHz, continue to keep 3min after alloy is completely melt.To ensure that composition is uniform, for alloy through 3 meltings, second and third time molten
Ingot casting overturns shove charge end to end during refining, obtains ingot casting, and cogging forging and high temperature are carried out after rising head is then cut off to Φ 120mm ingot castings
Forging.Cogging temperature is 1020~1050 DEG C, soaking time 90min, and deflection is not less than 60%.High temperature forging temperature is
930~950 DEG C, deflection is not less than 50%, the sheet alloy that final acquisition thickness is 20mm.
Embodiment 1
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made up of the composition of following percentage by weight：5~5.1% Al, 4.06~
4.15% Zr, 9.8%~10% Mo, 3.03~3.15% Cr, surplus are Ti and inevitable impurity element.
Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al titanium sponges and sponge zirconium are pressed according to above-mentioned design composition
It is well mixed according to proportioning and it is in bulk enter stove, then carry out CCLM meltings, 400MPa high-purity argon gas, induced electricity be passed through in fusion process
It is 20~25KHz to flow for 350~400A, power frequency, continues to keep 3min after alloy is completely melt.To ensure that composition is equal
Even, alloy is through 3 meltings, and ingot casting overturns shove charge end to end during second and third melting.Surveyed using ICP-AES and elemental analyser
Alloying component and impurity content are measured, as shown in table 1.Using metallographic method and DSC differential thermal analyses measure alloy phase change point, so that it is determined that
Alloy hot-working and Technology for Heating Processing；Cogging forging and high temperature forging then are carried out to Φ 120mm ingot castings, obtaining thickness is
20mm Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material.Wherein, cogging temperature is 1050 DEG C, soaking time 90min, deformation
Amount is not less than 60%；High temperature forging temperature is 950 DEG C, and deflection is not less than 50%.
The technic metal composition (wt%) of table 1
To the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material that thickness obtained above is 20mm, in 790 DEG C of progress of two-phase section
3h solution treatment, water quenching to room temperature, then carry out 8 hours timeliness at 600 DEG C.
The tissue of acquisition is organized as shown in figure 1, because alloy final forging temperature, solid solution reason temperature are respectively positioned on below transformation temperature
Middle typical isometric α phases occur, size is about 2~3 μm.In addition, the sheet α phases for having about 0.3 μm of thickness in alloy generate, alloy
Small and dispersed lenticular α phases are formed in 600 DEG C of timeliness.Such a composite construction cause alloy not only the intensity with superelevation but also with
Excellent plasticity.
Fig. 2 is dissolved for 790 DEG C/3h of alloy, stresses typical-strain curve after 600 DEG C/8h timeliness.According to GB/
The requirement of T228.1-2010 standards, it is as follows to measure alloy mechanical property：Tensile strength RmFor 1518.3, yield strength Rp0.2For
1480.5MPa, elongation after fracture A are 11.2%.
Fig. 3 shows the dimple appearance on Alloy Fracture, and micropore is distributed with shaft-like, the inside such as dimple is in substantially, and it is allusion quotation
The ductile fracture fracture of type
Embodiment 2
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made up of the composition of following percentage by weight：5~5.1% Al, 4.06~
4.15% Zr, 9.8%~10% Mo, 3.03~3.15% Cr, surplus are Ti and inevitable impurity element.
Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al titanium sponges and sponge zirconium are pressed according to above-mentioned design composition
It is well mixed according to proportioning and it is in bulk enter stove, then carry out CCLM meltings, 400MPa high-purity argon gas, induced electricity be passed through in fusion process
It is 20~25KHz to flow for 350~400A, power frequency, continues to keep 3min after alloy is completely melt.To ensure that composition is equal
Even, alloy is through 3 meltings, and ingot casting overturns shove charge end to end during second and third melting.Surveyed using ICP-AES and elemental analyser
Alloying component and impurity content are measured, as shown in table 1.Using metallographic method and DSC differential thermal analyses measure alloy phase change point, so that it is determined that
Alloy hot-working and Technology for Heating Processing；Cogging forging and high temperature forging then are carried out to Φ 120mm ingot castings, obtaining thickness is
20mm Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material.Wherein, cogging temperature is 1050 DEG C, soaking time 90min, deformation
Amount is not less than 60%；High temperature forging temperature is 950 DEG C, and deflection is not less than 50%.
BASCA heat treatments are carried out to sheet alloy obtained above, 875 DEG C are carried out at 40min solid solutions first in monophase field
Reason, then slowly cools to 580 DEG C, and be incubated 6h with 3 DEG C/min cooling rates.Due to the cooldown rate that above-mentioned technique is slower, β crystal boundaries
Place forms obvious grain boundary α phase, transgranular to form a large amount of α synusia, and Dispersed precipitate tiny secondary α phases between coarse alpha lamella, such as
Shown in Fig. 4.Such a tissue typically has higher fracture toughness, due to the presence of the secondary α phases of disperse, also with high intensity.According to
According to the requirement of GB/T228.1-2010 standards, it is as follows to measure alloy mechanical property：Tensile strength RmFor 1540.6, yield strength Rp0.2
For 1458.2MPa, elongation after fracture A is 6.4%.Fig. 5 shows the dimple appearance on Alloy Fracture, and dimple is in isometric substantially
Micropore is distributed with shape, inside, is ductile fracture fracture.
Embodiment 3
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made up of the composition of following percentage by weight：4.5~5% Al, 3.5~
4% Zr, 9.5%~9.7% Mo, 2.5~3% Cr, surplus are Ti and inevitable impurity element.
Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al titanium sponges and sponge zirconium are pressed according to above-mentioned design composition
It is well mixed according to proportioning and it is in bulk enter stove, then carry out CCLM meltings, 400MPa high-purity argon gas, induced electricity be passed through in fusion process
Flow for 350A, power frequency 20KHz, continue to keep 3min after alloy is completely melt, cooling, obtain ingot casting.To ensure into
Point uniform, for alloy through 3 meltings, ingot casting overturns shove charge end to end during second and third melting, obtains Φ 120mm ingot castings.Then to Φ
120mm ingot castings carry out cogging forging and high temperature forging, obtain the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy plate that thickness is 20mm
Material.Wherein, cogging temperature is 1020 DEG C, soaking time 90min, and deflection is not less than 60%；High temperature forging temperature is 950
DEG C, deflection is not less than 50%.
To the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material that thickness obtained above is 20mm, in 780 DEG C of progress of two-phase section
3h solution treatment, water quenching to room temperature, then carry out 8 hours timeliness at 580 DEG C.
Embodiment 4
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made up of the composition of following percentage by weight：5.3~5.5% Al, 4.3
~4.5% Zr, 10%~10.5% Mo, 3.3~3.5% Cr, surplus are Ti and inevitable impurity element.
Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al titanium sponges and sponge zirconium are pressed according to above-mentioned design composition
It is well mixed according to proportioning and it is in bulk enter stove, then carry out CCLM meltings, 400MPa high-purity argon gas, induced electricity be passed through in fusion process
Flow for 400A, power frequency 25KHz, continue to keep 4min after alloy is completely melt, cooling, obtain ingot casting.To ensure into
Point uniform, for alloy through 3 meltings, ingot casting overturns shove charge end to end during second and third melting, obtains Φ 120mm ingot castings.Then to Φ
120mm ingot castings carry out cogging forging and high temperature forging, obtain the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy plate that thickness is 20mm
Material.Wherein, cogging temperature is 1030 DEG C, soaking time 90min, and deflection is not less than 60%；High temperature forging temperature is 940
DEG C, deflection is not less than 50%.
To the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material that thickness obtained above is 20mm, in 800 DEG C of progress of two-phase section
3h solution treatment, water quenching to room temperature, then carry out 8 hours timeliness at 590 DEG C.
Embodiment 5
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is subjected to solution treatment, then carries out Ageing Treatment；Wherein, Ti-Al-Zr-
Mo-Cr systems beta-titanium alloy by weight percentage, includes 4.5~4.8% Al, 3.6~3.8% Zr, 9.8~9.9% Mo
And 2.5~2.8% Cr, surplus is Ti and inevitable impurity element.
Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al titanium sponges and sponge zirconium are pressed according to above-mentioned design composition
It is well mixed according to proportioning and it is in bulk enter stove, then carry out CCLM meltings, 400MPa high-purity argon gas, induced electricity be passed through in fusion process
Flow for 360A, power frequency 22KHz, continue to cool down after keeping 5min after alloy is completely melt.To ensure that composition is uniform, close
For gold through 3 meltings, ingot casting overturns shove charge end to end during second and third melting, obtains Φ 120mm ingot castings.Then to Φ 120mm ingot castings
Cogging forging and high temperature forging are carried out, obtains the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material that thickness is 20mm.Wherein, open
Base temperature is 1040 DEG C, soaking time 90min, and deflection is not less than 60%；High temperature forging temperature is 930 DEG C, and deflection is not
Less than 50%.
BASCA heat treatments are carried out to sheet alloy obtained above, 865 DEG C are carried out at 45min solid solutions first in monophase field
Reason, then slowly cools to 590 DEG C, and be incubated 8h with 4 DEG C/min cooling rates.
Embodiment 6
Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is subjected to solution treatment, then carries out Ageing Treatment；Wherein, Ti-Al-Zr-
Mo-Cr systems beta-titanium alloy by weight percentage, include 5~5.2% Al, 4~4.1% Zr, 10.3~10.5% Mo with
And 3~3.2% Cr, surplus is Ti and inevitable impurity element.
Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al titanium sponges and sponge zirconium are pressed according to above-mentioned design composition
It is well mixed according to proportioning and it is in bulk enter stove, then carry out CCLM meltings, 400MPa high-purity argon gas, induced electricity be passed through in fusion process
Flow for 380A, power frequency 21KHz, continue to cool down after keeping 3min after alloy is completely melt.To ensure that composition is uniform, close
For gold through 3 meltings, ingot casting overturns shove charge end to end during second and third melting, obtains Φ 120mm ingot castings.Then to Φ 120mm ingot castings
Cogging forging and high temperature forging are carried out, obtains the Ti-Al-Zr-Mo-Cr systems beta-titanium alloy sheet material that thickness is 20mm.Wherein, open
Base temperature is 1050 DEG C, soaking time 90min, and deflection is not less than 60%；High temperature forging temperature is 930 DEG C, and deflection is not
Less than 50%.
BASCA heat treatments are carried out to sheet alloy obtained above, 885 DEG C are carried out at 50min solid solutions first in monophase field
Reason, then slowly cools to 600 DEG C, and be incubated 6h with 5 DEG C/min cooling rates.
Alloy of the present invention can obtain the intensity of superelevation after melting, forging and strenthen-toughening mechanizm while have modeling concurrently
Property.Room temperature tensile intensity RmFor 1518.3, yield strength Rp0.2For 1480.5MPa, elongation after fracture A is 11.2%.The present invention closes
Gold adds a certain amount of neutral element Zr again while Al is added so that α phases obtain further reinforcing；High quality percentage
The addition of Mo elements is strengthening β matrixes.Further, since Mo low diffusion rate, it can also reduce alloy and be forged in two-phase section
When temperature sensitivity, expand alloy process window.
Claims (9)
- A kind of 1. superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy, it is characterised in that by weight percentage, including 4.5~ 5.5% Al, 3.5~4.5% Zr, 9.5~10.5% Mo and 2.5~3.5% Cr, surplus are Ti and can not kept away The impurity element exempted from.
- 2. a kind of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 1, it is characterised in that by weight Percentages are measured, include 5~5.1% Al, 4.06~4.15% Zr, 9.8%~10% Mo, 3.03~3.15% Cr, surplus are Ti and inevitable impurity.
- 3. a kind of Technology for Heating Processing of the superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy based on described in claim 1, it is special Sign is, Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is carried out into solution treatment, then carry out Ageing Treatment.
- 4. a kind of Technology for Heating Processing of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 3, it is special Sign is, carries out solution treatment, then carries out the detailed process of Ageing Treatment and be：In two-phase section, 780~800 DEG C are carried out at 3h solid solutions Reason, water quenching to room temperature, then carry out 8 hours timeliness at 580~600 DEG C.
- 5. a kind of Technology for Heating Processing of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 3, it is special Sign is, carries out solution treatment, then carries out the detailed process of Ageing Treatment and be：Carry out 40 865~885 DEG C of monophase field first~ 45min solution treatment, 580~600 DEG C then are slowly cooled to 3~5 DEG C/min cooling rates, and be incubated 6~8h.
- 6. a kind of Technology for Heating Processing of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 3, it is special Sign is that Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made by the following method：Corresponding raw material is selected, is suspended using cold crucible Method of smelting, enter stove and to carry out multiple smelting in suspension and obtain ingot casting by raw material is in bulk, ingot casting is carried out after stripping off the skin and cutting rising head Cogging forging, high temperature forging and heat treatment after forging obtain Ti-Al-Zr-Mo-Cr systems beta-titanium alloy.
- 7. a kind of Technology for Heating Processing of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 6, it is special Sign is that Ti-Al-Zr-Mo-Cr systems beta-titanium alloy is made by the following method：By Ti-32Mo, Al-62Mo intermediate alloy, pure Cr, pure Al and titanium sponge, sponge zirconium it is well mixed according to proportioning and it is in bulk enter stove, then carry out cold crucible levitation melting, melt Argon gas is passed through during refining, induced-current is 350~400A, and power frequency is 20~25KHz, is continued after alloy is completely melt 3~5min is kept, cooling obtains ingot casting, then carries out cogging forging and high temperature forging to ingot casting, obtains Ti-Al-Zr-Mo-Cr It is beta-titanium alloy.
- 8. a kind of Technology for Heating Processing of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 7, it is special Sign is that the cogging temperature of cogging forging is 1020~1050 DEG C, soaking time 90min, and deflection is not less than 60%.
- 9. a kind of Technology for Heating Processing of superhigh intensity Ti-Al-Zr-Mo-Cr systems beta-titanium alloy according to claim 7, it is special Sign is that the temperature of high temperature forging is 930~950 DEG C, and deflection is not less than 50%.
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