CN106636744A - WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot and preparation method thereof - Google Patents
WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot and preparation method thereof Download PDFInfo
- Publication number
- CN106636744A CN106636744A CN201611149346.3A CN201611149346A CN106636744A CN 106636744 A CN106636744 A CN 106636744A CN 201611149346 A CN201611149346 A CN 201611149346A CN 106636744 A CN106636744 A CN 106636744A
- Authority
- CN
- China
- Prior art keywords
- wsti64e
- melting
- electrode
- scale
- alloy casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot which is composed of the following elements in percentage by weight: 5.8-6.5% of Al, 3.6-4.4% of V, 0.10-0.25% of Fe, 0.01-0.05% of C, 0.05-0.12% of O, less than 0.03% of N, less than 0.0125% of H, and the balance of Ti and inevitable impurities. The total amount of the impurity elements does not exceed 0.10%. The invention also discloses a preparation method of the titanium alloy. The WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot has the advantages of high transverse and longitudinal uniformity of chemical components and lower impurity content, successfully makes a breakthrough in the chemical component uniformity control technology of industrial 5t and 8t large-size cast ingots, reduces the burning loss of the aluminum element in the smelting process, effectively controls the interstitial element content, and avoids the niggerheads formed by the high-melting-point vanadium element and other metallurgical defects.
Description
Technical field
The invention belongs to titanium alloy technical field, and in particular to a kind of WSTi64E high damage tolerances super large-scale titanium alloy
Ingot casting, the invention further relates to the preparation method of above-mentioned WSTi64E high damage tolerances super large-scale titan alloy casting ingot.
Background technology
In Aeronautics and Astronautics and navigational field, titanium alloy parts need long-term steady under the conditions of high speed, high pressure and vibration etc.
Fixed to be on active service, alloy just ruptures when being often not up to ultimate strength.In order to improve the service life of titanium alloy parts and steady
Qualitative, designer proposes damage tolerance requirements, i.e. alloy to titanium alloy rod bar on the basis of static strength is kept, with relatively low
Crack growth rate, higher fracture toughness and anti-fatigue performance.Using the simple technological approaches for changing alloy composition
It is difficult to solve high intensity, the contradiction between high-fracture toughness and low crack growth rate performance, it is necessary to reduce nitrogen and hydrogen in alloy
Etc. objectionable impurities elements, the interstitial element with reinforcing effect such as carbon, oxygen and ferrum is rationally controlled, dislocation migration speed could be reduced
Rate, it is to avoid form formation of crack, finally meet damage tolerance design requirement.The titan alloy casting ingot for obtaining high-purity high uniformity is to improve
One of effective ways of damage tolerance.
WSTi64E nominal compositions are Ti-6Al-4V, are the one kind grown up on the basis of general T i-6Al-4V alloy
High damage tolerance diphasic titanium alloy, it is whole that large scale rod bar, slab or forging prepared by the alloy can be used in large-scale wide-bodied aircraft
The large scale parts such as frame, engine blower drum and ocean bathyscaph shell are manufactured.Big specification titanium is in preparation process
Tend to segregation, resistance of deformation and the phenomenon such as rate of deformation is uneven, and then reduce the damage of alloy
Tolerance limit performance.
Compared with other elements, under 2200K, the saturated vapour pressure of aluminium element is about the saturation of 240Pa, titanium and v element
Vapour pressure is 10-2The Pa orders of magnitude, but the close 1900K of titanium alloy fusing point, in liquid titanium alloy melt, hydrogen, oxygen and nitrogen unit
Element easily forms gas, and aluminium element is then raised with melt temperature, and rate of volatilization is consequently increased, and Volatile Elements are easily in earthenware
Crucible wall condenses to form skull；By contrast, v element is then difficult fusing, is also possible to form niggerhead form at a lower temperature
It is mingled with saturated vapor pressure difference between metallurgical imperfection, therefore different elements firmly and hinders lifting ingot chemistry uniformity.
In vacuum consumable arc-melting technique, consumable arc-melting electrode block is prepared with simple metal and titanium sponge form,
Vacuum consumable smelting twice is carried out again, it is impossible to the alloying element content such as precise control aluminum and vanadium, it is also possible to form rich niobium form
Niggerhead defect.Therefore, alloying element allocate mode into and smelting technology is key prepared by WSTi64E alloys.
The content of the invention
It is an object of the invention to provide a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot, solves routine
Method of smelting prepares the aluminium element segregation that WSTi64E alloys are produced and the metallurgical imperfection problem being mingled with firmly.
It is a further object of the present invention to provide the preparation side of above-mentioned WSTi64E high damage tolerances super large-scale titan alloy casting ingot
Method.
The technical solution adopted in the present invention is, a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot, according to
Percentage by weight has following elementary composition：Al：5.8%～6.5%, V：3.6%～4.4%, Fe：0.10%～0.25%, C：
0.01%～0.05%, O：0.05%～0.12%, N<0.03%, H<0.0125%, balance of Ti and inevitable impurity,
Impurity element total amount is less than 0.10%, and above weight percentages of components sum is 100%.
Feature of the present invention is also resided in,
V, Fe element is respectively derived from the graininess aluminum-vanadium alloy that content of vanadium is 40.0%～60.0%, and iron content is
50.0%～70.0% graininess alfer.
Al elements come from aluminium shot and graininess aluminum vanadium and alfer；C element is more than from purity
99.0% powdered graphite, titania powder of the O elements from purity more than 99.0%.
Another kind of technical scheme of the present invention is, above-mentioned WSTi64E high damage tolerances super large-scale titanium alloy casting
The preparation method of ingot, specifically includes following steps：
Step 1, prepares electrode：
By granular aluminum-vanadium alloy, alfer, and aluminium shot, carbon dust and titanium dioxide powder, and little particle titanium sponge
Single-piece electrode batch mixing is carried out, and is pressed into electrode block；
Step 2, welds consutrodes：
The electrode block obtained with clamp step 1, is welded as electrode block using non-tungsten electrode argon protection plasma case
Consutrodes；
Step 3, carries out obtaining step 2 consutrodes carrying out three vacuum melting using vacuum consumable electrode arc furnace, obtains final product
To WSTi64E titan alloy casting ingots.
Of the invention the characteristics of, also resides in,
The content of vanadium of graininess aluminum-vanadium alloy is 40.0%～60.0% in step 1, the iron content of graininess alfer
For 50.0%～70.0%, carbon dust is powdered graphite of the purity more than 99.0%.
Electrode is square electrode in step 2.
The electric current of electrode welding is 300～500A in step 2, and weldingvoltage is 40～50V.
Melting once parameter is in step 3：Crucible specification Φ 560～Φ 640mm, melt initial vacuum degree≤2.0Pa, leak rate
≤ 1.5Pa/min, melting 30～40V of voltage, melting 12～18kA of electric current, stabilising arc 3.0～10.0A of current DC, cool time 4
～8h.
Crucible specification Φ 640～Φ 850mm in step 3, melt initial vacuum degree≤1.8Pa, and leak rate≤1.2Pa/min melts
Refining 30～40V of voltage, melting 14～24kA of electric current, stabilising arc electric current exchange 5.0～12.0A, cool time 6～8h.
Three smelting parameters are in step 3：Crucible specification Φ 720～Φ 920mm, melt initial vacuum degree≤1.5Pa, leak rate
≤ 1.0Pa/min, melting 32～40V of voltage, melting 20～28kA of electric current, stabilising arc electric current exchanges 8.0～18.0A, cool time 6
～8h.
The invention has the beneficial effects as follows, the present invention replaces block pure vanadium and pure using graininess aluminum vanadium and ferro-aluminum intermediate alloy
Ferrum, from high-grade 0.83～12.7mm little particle titanium sponges, the oxygen content and other impurity elements in strict control raw material
Content, using the high-purity carbon dust of addition and titanium dioxide powder precise control interstitial element content.Single-piece electrode is adopted before electrode compacting
Batch mixing, is sufficiently mixed uniform；Electrode completes whole electrode welding process in non-tungsten electrode vacuum plasma welding box, it is to avoid tungsten or
The pollution and anodizing of other impurities；Three meltings are carried out using vacuum consumable electrode arc furnace, fusion process is to vacuum, leakage
The parameters such as gas rate are strictly controlled, and the horizontal and vertical uniformity of whole ingot chemistry is improved, impurity element
Content is reduced.Industrial 5 tonnes and 8 tonnes of super large-scale ingot chemistry uniformity controlling technologies are successfully breached, is controlled
Scaling loss of the aluminium element in fusion process, it is to avoid high-melting-point v element forms the metallurgical imperfections such as niggerhead, effectively solves
The problems such as content control, lot stability of component segregation, impurity and interstitial element, it is adaptable to Φ 720～Φ 920mm specifications
The industrialized production of WSTi64E titan alloy casting ingots.The WSTi64E titan alloy casting ingots for preparing can be used in processing big template
Material, overall grid beam and annular forging piece, it is adaptable to manufacture marine pressure container, wide-bodied aircraft fuselage and big-block engine drum etc.
Key components and partss.
Description of the drawings
Fig. 1 is 5 points of the ingot casting longitudinal direction sampling schematic diagram to being obtained using the inventive method；
Fig. 2 is the horizontal 9 points of samplings schematic diagram of ingot casting to being obtained using the inventive method；
Fig. 3 is 5 point Al of ingot casting longitudinal direction, the V element content distribution figure that present example 3 is obtained；
Fig. 4 is the horizontal 9 point Al chemical composition content scattergrams of ingot casting that present example 3 is obtained；
Fig. 5 is the horizontal 9 point V chemical composition content scattergrams of ingot casting that present example 3 is obtained.
In figure, 1. ingot casting, 2. longitudinal sample point, 3. horizontal sample point.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in detail.
A kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot of the present invention, has following unit according to percentage by weight
Element composition：Al：5.8%～6.5%, V：3.6%～4.4%, Fe：0.10%～0.25%, C：0.01%～0.05%, O：
0.05%～0.12%, N<0.03%, H<0.0125%, balance of Ti and inevitable impurity, impurity element total amount does not surpass
0.15% is crossed, above weight percentages of components sum is 100%.
Above-mentioned WSTi64E high damage tolerances super large-scale titan alloy casting ingot preparation method, specifically includes following steps：
Step 1, prepares electrode：
It is according to each element percentage by weight：Al：5.8%～6.5%, V：3.6%～4.4%, Fe：0.10%～
0.25%, C：0.01%～0.05%, O：0.05%～0.12%, N<0.03%, H<0.0125%, balance of Ti and can not keep away
The impurity exempted from, impurity element total amount is less than 0.10%, and above weight percentages of components sum is 100%, calculates alloy proportion
And the graininess aluminum-vanadium alloy that content of vanadium is 40.0%～60.0% is weighed respectively, iron content is 50.0%～70.0% granule
Shape alfer, and graininess aluminium shot, carbon dust and titanium dioxide powder, with the little particle titanium sponge that granularity is 0.83～12.7mm
Single-piece electrode batch mixing is carried out, and electrode block, pressing pressure >=20MPa, press time >=4s are pressed into large hydraulic press.
Wherein carbon dust is powdered graphite of the purity more than 99.0%；Titanium dioxide powder purity is more than 99.0%.
Step 2, welds consutrodes：
Clamp electrode block is used, electrode block is welded into by a square electricity using non-tungsten electrode argon protection plasma case
Pole, as consutrodes, the electric current of electrode welding is 300～500A, and weldingvoltage is 40～50V；
Solder joint requires to be silver gray or faint yellow, prevents the metallurgical imperfections such as solder joint is aoxidized and high density is mingled with.
Step 3, carries out obtaining step 2 consutrodes carrying out three vacuum melting using vacuum consumable electrode arc furnace：
Melting once：Step 2 is obtained into consutrodes and is placed in crucible specification Φ 560～Φ 640mm, molten initial vacuum degree≤
2.0Pa, leak rate≤1.5Pa/min, melting 30～40V of voltage, melting 12～18kA of electric current, stabilising arc current DC 3.0～
10.0A, cool time 4～8h, to carrying out chamfered to ingot casting in lathe after the completion of melting；
Secondary smelting：Ingot casting after melting once and chamfering is inverted and melting again, crucible 640～Φ of specification Φ
850mm, molten initial vacuum degree≤1.8Pa, leak rate≤1.2Pa/min, melting 30～40V of voltage, melting 14～24kA of electric current, surely
Arc current exchange 5.0～12.0A, cool time 6～8h, to carrying out chamfered to ingot casting in lathe after the completion of melting；
Three meltings：Ingot casting after secondary smelting and chamfering is inverted and melting again, crucible 720～Φ of specification Φ
920mm, molten initial vacuum degree≤1.5Pa, leak rate≤1.0Pa/min, melting 32～40V of voltage, melting 20～28kA of electric current, surely
Arc current exchanges 8.0～18.0A, and cool time, 6～8h, that is, obtained WSTi64E titan alloy casting ingots.
The present invention replaces block pure vanadium and pure iron using graininess aluminum vanadium and ferro-aluminum intermediate alloy, from high-grade 0.83～
12.7mm little particle titanium sponges, the oxygen content and other impurity contents in strict control raw material, using addition high-purity carbon
Powder and titanium dioxide powder precise control interstitial element content.Single-piece electrode batch mixing is adopted before electrode compacting, is sufficiently mixed uniform；Electricity
Pole completes whole electrode welding process in non-tungsten electrode vacuum plasma welding box, it is to avoid pollution and the electricity of tungsten or other impurities
Pole aoxidizes；Three meltings are carried out using vacuum consumable electrode arc furnace, fusion process is strictly controlled to parameters such as vacuum, leak rates
System, the horizontal and vertical uniformity of whole ingot chemistry is improved, impurity content reduce.Successfully breach work
5 tonnes and 8 tonnes super large-scale ingot chemistry uniformity controlling technologies of industry, control burning of the aluminium element in fusion process
Damage, it is to avoid high-melting-point v element forms the metallurgical imperfections such as niggerhead, effectively solves component segregation, impurity and interstitial element
Content control, lot stability the problems such as, it is adaptable to the industrialization of Φ 720～Φ 920mm specification WSTi64E titan alloy casting ingots
Production.The WSTi64E titan alloy casting ingots for preparing can be used in processing large-sized sheet material, overall grid beam and annular forging piece, be suitable for
In key components and partss such as manufacture marine pressure container, wide-bodied aircraft fuselage and big-block engine drums.
Embodiment 1
Step 1, be according to each element percentage by weight：Al6.5%, V4.4%, Fe0.25%, C0.05%, O0.10%,
Balance of Ti and inevitable impurity, impurity element total amount is less than 0.15%, and above weight percentages of components sum is
100%, the graininess aluminum-vanadium alloy that content of vanadium is 40.0%～60.0% is weighed respectively, iron content is 50.0%～70.0%
Graininess alfer, and graininess aluminium shot, carbon dust and titanium dioxide powder, with the little particle sea that granularity is 0.83～12.7mm
Continuous titanium carries out single-piece electrode batch mixing；
Step 2, pours the raw material that step 1 mixes into large hydraulic press die cavity and is pressed into dense electrodes block, press power
20MPa, dwell time 4s；
Step 3, uses clamp electrode block, and plasma case is protected by the electrode block welding for suppressing using non-tungsten electrode argon
For consutrodes, welding current 300A, weldingvoltage 40V, solder joint requirement is silver gray or faint yellow, prevents solder joint from aoxidizing and high
The metallurgical imperfections such as density inclusions；
Step 4, the consutrodes obtained to step 2 using vacuum consumable electrode arc furnace carry out three vacuum melting, specially：
Melting once：Crystallizer specification Φ 560mm, melts initial vacuum degree≤2.0Pa, melting voltage 30V～35V, melting electricity
Stream 12kA～14kA, leak rate control adopts direct current 3A～5A, cool time after melting in below 1.5Pa/min, stabilising arc electric current
4.0 hours, to carrying out chamfered to ingot casting in lathe after the completion of melting；
Secondary smelting：Ingot casting after melting once and chamfering is inverted and melting again, crystallizer specification Φ 640mm, melts
Initial vacuum degree≤1.8Pa, melting voltage 30V～35V, melting electric current 14kA～16kA；Leak rate control 1.2Pa/min with
Under, stabilising arc electric current is using exchange 5A～8A, cool time 6.0 hours after melting, to carrying out to ingot casting in lathe after the completion of melting
Chamfered；
Three meltings：Ingot casting after secondary smelting and chamfering is inverted and melting again；Crystallizer specification Φ 720mm, melts
Initial vacuum degree≤1.5Pa, melting voltage 32V～37V, melting electric current 20kA～22kA；Leak rate control 1.0Pa/min with
Under, using exchange 8A～11A, cool time 6.0 hours after melting obtain the WSTi64E titanium alloy castings of Φ 720mm to stabilising arc electric current
Ingot.
Embodiment 2
Step 1, be according to each element percentage by weight：Al6.2%, V4.0%, Fe0.15%, C0.03%,
O0.095%, balance of Ti and inevitable impurity, impurity element total amount is less than 0.15%, above weight percentages of components
Sum is 100%, weighs the graininess aluminum-vanadium alloy that content of vanadium is 40.0%～60.0% respectively, iron content is 50.0%～
70.0% graininess alfer, and graininess aluminium shot, carbon dust and titanium dioxide powder, are 0.83～12.7mm's with granularity
Little particle titanium sponge carries out single-piece electrode batch mixing；
Step 2, pours the raw material that step 1 mixes into large hydraulic press die cavity and is pressed into dense electrodes block, press power
25MPa, dwell time 6s；
Step 3, uses clamp electrode block, and plasma case is protected by the electrode block welding for suppressing using non-tungsten electrode argon
For consutrodes, welding current 400A, weldingvoltage 45V, solder joint requirement is silver gray or faint yellow, prevents solder joint from aoxidizing and high
The metallurgical imperfections such as density inclusions；
Step 4, the consutrodes obtained to step 2 using vacuum consumable electrode arc furnace carry out three vacuum melting, specially：
Melting once：Crystallizer specification Φ 640mm, melts initial vacuum degree≤2.0Pa, melting voltage 32V～37V, melting electricity
Stream 14kA～16kA, leak rate control adopts direct current 5A～8A, cool time after melting in below 1.5Pa/min, stabilising arc electric current
6.0 hours, to carrying out chamfered to ingot casting in lathe after the completion of melting；
Secondary smelting：Ingot casting after melting once and chamfering is inverted and melting again, crystallizer specification Φ 720mm, melts
Initial vacuum degree≤1.8Pa, melting voltage 32V～37V, melting electric current 18kA～20kA；Leak rate control 1.2Pa/min with
Under, stabilising arc electric current is using exchange 8A～10A, cool time 6.0 hours after melting, to carrying out to ingot casting in lathe after the completion of melting
Chamfered；
Three meltings：Ingot casting after secondary smelting and chamfering is inverted and melting again；Crystallizer specification Φ 850mm, melts
Initial vacuum degree≤1.5Pa, melting voltage 34V～40V, melting electric current 20kA～22kA；Leak rate control 1.0Pa/min with
Under, using exchange 10A～12A, cool time 7.0 hours after melting obtain the WSTi64E titanium alloys of Φ 850mm to stabilising arc electric current
Ingot casting.
Embodiment 3
Step 1, be according to each element percentage by weight：Al5.8%, V3.6%, Fe0.10%, C0.01%, O0.05%,
Balance of Ti and inevitable impurity, impurity element total amount is less than 0.15%, and above weight percentages of components sum is
100%, the graininess aluminum-vanadium alloy that content of vanadium is 40.0%～60.0% is weighed respectively, iron content is 50.0%～70.0%
Graininess alfer, and graininess aluminium shot, carbon dust and titanium dioxide powder, with the little particle sea that granularity is 0.83～12.7mm
Continuous titanium carries out single-piece electrode batch mixing；
Step 2, pours the raw material that step 1 mixes into large hydraulic press die cavity and is pressed into dense electrodes block, press power
28MPa, dwell time 6s；
Step 3, uses clamp electrode block, and plasma case is protected by the electrode block welding for suppressing using non-tungsten electrode argon
For consutrodes, welding current 500A, weldingvoltage 50V, solder joint requirement is silver gray or faint yellow, prevents solder joint from aoxidizing and high
The metallurgical imperfections such as density inclusions；
Step 4, the consutrodes obtained to step 2 using vacuum consumable electrode arc furnace carry out three vacuum melting, specially：
Melting once：Crystallizer specification Φ 720mm, melts initial vacuum degree≤2.0Pa, melting voltage 35V～40V, melting electricity
Stream 16kA～18kA, leak rate control adopts direct current 8A～10A, cool time after melting in below 1.5Pa/min, stabilising arc electric current
8.0 hours, to carrying out chamfered to ingot casting in lathe after the completion of melting；
Secondary smelting：Ingot casting after melting once and chamfering is inverted and melting again, crystallizer specification Φ 850mm, melts
Initial vacuum degree≤1.8Pa, melting voltage 35V～40V, melting electric current 22kA～24kA；Leak rate control 1.2Pa/min with
Under, stabilising arc electric current is using exchange 10A～12A, cool time 8.0 hours after melting, to entering to ingot casting in lathe after the completion of melting
Row chamfered；
Three meltings：Ingot casting after secondary smelting and chamfering is inverted and melting again；Crystallizer specification Φ 920mm, melts
Initial vacuum degree≤1.5Pa, melting voltage 35V～40V, melting electric current 24kA～28kA；Leak rate control 1.0Pa/min with
Under, using exchange 16A～18A, cool time 8.0 hours after melting obtain the WSTi64E titanium alloys of Φ 920mm to stabilising arc electric current
Ingot casting.
According to shown in Fig. 1 and 2, being respectively Φ 720mm, Φ 850mm and Φ 920mm to obtained specification in embodiment
9 points of longitudinal head of 5 tons, 5 tons and 8 tonnes industrial large-sized ingot castings of WSTi64E alloys, upper, middle and lower, 5 points of tail and cross section are taken
Sample and chemical composition detect that the stability between each position each element distributed components of data display ingot casting and batch is preferable；
And to ingot casting head, in, afterbody position section carry out X-ray transmission, as a result show and do not find any component segregation and metallurgical imperfection；
Φ 920mm specifications WSTi64E titan alloy casting ingot longitudinal direction 5 points and horizontal 9 o'clock chemical composition analysis results minute that wherein example 3 is obtained
Not as shown in Fig. 3,4,5 (vertical coordinate is element weight percent), wherein 5 chemical compositions in longitudinal direction are listed in table 1, Fig. 4, figure
The content distribution of the 5 different sample points for representing each element respectively.It can be seen that each element distributed components.
The 5 chemical composition lists in longitudinal direction of the Φ 920mm specifications WSTi64E titan alloy casting ingot of table 1
From test result, the WSTi64E titanium alloy technical grades using the smelting technology technology production of the present invention are large-scale
Ingot casting composition is uniform, and lot stability is good, it is adaptable to industrialized production.
Claims (10)
1. a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot, it is characterised in that have following according to percentage by weight
It is elementary composition：Al：5.8%～6.5%, V：3.6%～4.4%, Fe：0.10%～0.25%, C：0.01%～0.05%, O：
0.05%～0.12%, N<0.03%, H<0.0125%, balance of Ti and inevitable impurity, impurity element total amount does not surpass
0.10% is crossed, above weight percentages of components sum is 100%.
2. a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 1, it is characterised in that
V, Fe element is respectively derived from the graininess aluminum-vanadium alloy that content of vanadium is 40.0%～60.0%, and iron content is 50.0%～
70.0% graininess alfer.
3. a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 1, it is characterised in that
The Al elements come from aluminium shot and graininess aluminum vanadium and alfer；C element is more than 99.0% from purity
Powdered graphite, titania powder of the O elements from purity more than 99.0%.
4. a kind of preparation method of WSTi64E high damage tolerances super large-scale titan alloy casting ingot, it is characterised in that specifically include with
Lower step：
Step 1, prepares electrode：
By granular aluminum-vanadium alloy, alfer, and aluminium shot, carbon dust and titanium dioxide powder, and little particle titanium sponge is carried out
Single-piece electrode batch mixing, and it is pressed into electrode block；
Step 2, welds consutrodes：
The electrode block obtained with clamp step 1, consumable is welded as using non-tungsten electrode argon protection plasma case by electrode block
Electrode；
Step 3, carries out obtaining step 2 consutrodes carrying out three vacuum melting using vacuum consumable electrode arc furnace, that is, obtain
WSTi64E titan alloy casting ingots.
5. the preparation method of a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 4, its
It is characterised by, the content of vanadium of graininess aluminum-vanadium alloy described in step 1 is 40.0%～60.0%, the ferrum of graininess alfer
Content is 50.0%～70.0%, and carbon dust is powdered graphite of the purity more than 99.0%.
6. the preparation method of a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 4, its
It is characterised by, electrode described in step 2 is square electrode.
7. the preparation method of a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 4, its
It is characterised by, the electric current of electrode welding described in step 2 is 300～500A, and weldingvoltage is 40～50V.
8. the preparation method of a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 4, its
It is characterised by, melting once parameter described in step 3 is：Crucible specification Φ 560～Φ 640mm, melt initial vacuum degree≤2.0Pa,
Leak rate≤1.5Pa/min, melting 30～40V of voltage, melting 12～18kA of electric current, stabilising arc 3.0～10.0A of current DC are cold
But 4～8h of time.
9. the preparation method of a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 4, its
It is characterised by, the 640～Φ 850mm of crucible specification Φ described in step 3, melts initial vacuum degree≤1.8Pa, leak rate≤1.2Pa/
Min, melting 30～40V of voltage, melting 14～24kA of electric current, stabilising arc electric current exchange 5.0～12.0A, cool time 6～8h.
10. the preparation method of a kind of WSTi64E high damage tolerances super large-scale titan alloy casting ingot according to claim 4,
Characterized in that, three smelting parameters are described in step 3：Crucible specification Φ 720～Φ 920mm, molten initial vacuum degree≤
1.5Pa, leak rate≤1.0Pa/min, melting 32～40V of voltage, melting 20～28kA of electric current, stabilising arc electric current exchange 8.0～
18.0A, cool time 6～8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149346.3A CN106636744A (en) | 2016-12-14 | 2016-12-14 | WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149346.3A CN106636744A (en) | 2016-12-14 | 2016-12-14 | WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106636744A true CN106636744A (en) | 2017-05-10 |
Family
ID=58825197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611149346.3A Pending CN106636744A (en) | 2016-12-14 | 2016-12-14 | WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106636744A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438368A (en) * | 2019-07-31 | 2019-11-12 | 西部超导材料科技股份有限公司 | A kind of super large-scale Ti80 alloy cast ingot and preparation method thereof |
| CN110997957A (en) * | 2017-07-18 | 2020-04-10 | 卡本特科技公司 | Customized titanium alloy, TI-64,23+ |
| CN115485403A (en) * | 2020-03-16 | 2022-12-16 | 犹他大学研究基金会 | Method for producing titanium alloy products |
| CN115584405A (en) * | 2022-10-26 | 2023-01-10 | 湖南湘投金天钛业科技股份有限公司 | Titanium alloy ingot, preparation method thereof and titanium alloy product |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139670A (en) * | 2007-10-17 | 2008-03-12 | 西北有色金属研究院 | Technique for processing titanium alloy sheet material |
| CN101825200A (en) * | 2009-10-16 | 2010-09-08 | 东港市东方高新金属材料有限公司 | Titanium alloy TC4 hot-rolled tube and production method thereof |
| CN102230097A (en) * | 2011-03-31 | 2011-11-02 | 西北有色金属研究院 | Preparation method of titanium alloy bars |
| CN102513479A (en) * | 2011-11-18 | 2012-06-27 | 宝鸡市金盛伟业稀有金属有限公司 | Production process for large-diameter fine isometric crystal tissue titanium alloy bar |
| CN102888531A (en) * | 2012-07-13 | 2013-01-23 | 中国科学院金属研究所 | Alpha+beta type titanium alloy wire for 960MPa intensity level electron beam fused deposition rapid-forming members |
| CN104532060A (en) * | 2014-12-22 | 2015-04-22 | 西安西工大超晶科技发展有限责任公司 | Ti-6Al-4V improved titanium alloy and processing method thereof |
| CN104831120A (en) * | 2015-04-17 | 2015-08-12 | 河北恒祥钛合金制品有限公司 | Titanium alloy seamless tube and manufacturing method thereof |
| CN105618508A (en) * | 2016-03-23 | 2016-06-01 | 攀钢集团成都钢钒有限公司 | Thin-walled TC4 titanium alloy seamless tube and production method thereof |
| CN105642879A (en) * | 2016-01-14 | 2016-06-08 | 鞍山东大激光科技有限公司 | Spherical TC4 titanium alloy powder used for laser 3D printing and preparation method thereof |
| CN105970019A (en) * | 2016-05-13 | 2016-09-28 | 大连盛辉钛业有限公司 | Medical high-strength Ti-6Al-4V alloy wire and preparation technique and application thereof |
| CN106119606A (en) * | 2016-08-26 | 2016-11-16 | 西部超导材料科技股份有限公司 | A kind of WSTi45561 superhigh intensity titanium alloy and preparation method thereof |
-
2016
- 2016-12-14 CN CN201611149346.3A patent/CN106636744A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139670A (en) * | 2007-10-17 | 2008-03-12 | 西北有色金属研究院 | Technique for processing titanium alloy sheet material |
| CN101825200A (en) * | 2009-10-16 | 2010-09-08 | 东港市东方高新金属材料有限公司 | Titanium alloy TC4 hot-rolled tube and production method thereof |
| CN102230097A (en) * | 2011-03-31 | 2011-11-02 | 西北有色金属研究院 | Preparation method of titanium alloy bars |
| CN102513479A (en) * | 2011-11-18 | 2012-06-27 | 宝鸡市金盛伟业稀有金属有限公司 | Production process for large-diameter fine isometric crystal tissue titanium alloy bar |
| CN102888531A (en) * | 2012-07-13 | 2013-01-23 | 中国科学院金属研究所 | Alpha+beta type titanium alloy wire for 960MPa intensity level electron beam fused deposition rapid-forming members |
| CN104532060A (en) * | 2014-12-22 | 2015-04-22 | 西安西工大超晶科技发展有限责任公司 | Ti-6Al-4V improved titanium alloy and processing method thereof |
| CN104831120A (en) * | 2015-04-17 | 2015-08-12 | 河北恒祥钛合金制品有限公司 | Titanium alloy seamless tube and manufacturing method thereof |
| CN105642879A (en) * | 2016-01-14 | 2016-06-08 | 鞍山东大激光科技有限公司 | Spherical TC4 titanium alloy powder used for laser 3D printing and preparation method thereof |
| CN105618508A (en) * | 2016-03-23 | 2016-06-01 | 攀钢集团成都钢钒有限公司 | Thin-walled TC4 titanium alloy seamless tube and production method thereof |
| CN105970019A (en) * | 2016-05-13 | 2016-09-28 | 大连盛辉钛业有限公司 | Medical high-strength Ti-6Al-4V alloy wire and preparation technique and application thereof |
| CN106119606A (en) * | 2016-08-26 | 2016-11-16 | 西部超导材料科技股份有限公司 | A kind of WSTi45561 superhigh intensity titanium alloy and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110997957A (en) * | 2017-07-18 | 2020-04-10 | 卡本特科技公司 | Customized titanium alloy, TI-64,23+ |
| CN110438368A (en) * | 2019-07-31 | 2019-11-12 | 西部超导材料科技股份有限公司 | A kind of super large-scale Ti80 alloy cast ingot and preparation method thereof |
| CN115485403A (en) * | 2020-03-16 | 2022-12-16 | 犹他大学研究基金会 | Method for producing titanium alloy products |
| CN115584405A (en) * | 2022-10-26 | 2023-01-10 | 湖南湘投金天钛业科技股份有限公司 | Titanium alloy ingot, preparation method thereof and titanium alloy product |
| CN115584405B (en) * | 2022-10-26 | 2023-11-03 | 湖南湘投金天钛业科技股份有限公司 | Titanium alloy cast ingot, preparation method thereof and titanium alloy product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110951974B (en) | Titanium alloy ingot and preparation method thereof | |
| CN108546834B (en) | Purification smelting method for nickel-based high-temperature alloy master alloy | |
| CN106119606A (en) | A kind of WSTi45561 superhigh intensity titanium alloy and preparation method thereof | |
| CN107177753B (en) | A method of controlling big specification TC4-DT titan alloy casting ingot solidified structure | |
| Yang et al. | Inclusions in wrought superalloys: a review | |
| CN105861877A (en) | WSTi64311SC heat-resistant titanium alloy and preparation method thereof | |
| CN106636744A (en) | WSTi64E high-damage-tolerance super-large-size titanium alloy cast ingot and preparation method thereof | |
| CN104313363A (en) | Smelting method for titanium-niobium alloy ingot | |
| CN110527843B (en) | Preparation method of high-niobium titanium alloy homogeneous ingot | |
| JP5048222B2 (en) | Method for producing long ingots of active refractory metal alloys | |
| CN102912186A (en) | Method for preparing TC4 titanium alloy ingot casting through electron beam cold bed hearth smelting | |
| CN109161697A (en) | A method of non-metallic inclusion in control powder metallurgy high-temperature alloy master alloy | |
| CN104278167B (en) | Manufacturing method of high-quality titanium-aluminum alloy target | |
| CN111549244A (en) | Preparation method of Ti35 titanium alloy ingot | |
| CN111254318A (en) | Fine smelting and purifying method for large-size nickel-titanium shape memory alloy cast ingot | |
| CN106756081A (en) | The preparation method of big specification Ti Al Nb series alloy fines crystalline substance ingot casting | |
| CN103526038B (en) | A kind of high-strength high-plasticity TWIP steel esr production method | |
| CN107385244B (en) | A kind of electron beam covers the method that induced coagulation technology High Purity prepares nickel base superalloy | |
| CN110527868A (en) | A kind of Ti153 large scale alloy cast ingot vacuum consumable electrode arc furnace smelting technology | |
| CN112921196B (en) | Preparation method of corrosion-resistant Ti35 titanium alloy ingot | |
| CN110317967A (en) | A method of improving big specification TC4 titan alloy casting ingot solidified structure | |
| CN109536749A (en) | A kind of preparation method and its high temperature alloy of high temperature alloy | |
| CN108660320A (en) | A kind of low-aluminium high titanium-type high temperature alloy electroslag remelting process | |
| CN110205652B (en) | Preparation method and application of copper-scandium intermediate alloy | |
| CN104498770B (en) | A kind of WSTi2815SC Burn-Resistant Titanium Alloys and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |