CN106661670A - Method for deoxidizing ti-al alloy - Google Patents
Method for deoxidizing ti-al alloy Download PDFInfo
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- CN106661670A CN106661670A CN201580046835.3A CN201580046835A CN106661670A CN 106661670 A CN106661670 A CN 106661670A CN 201580046835 A CN201580046835 A CN 201580046835A CN 106661670 A CN106661670 A CN 106661670A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/003—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals by induction
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/04—Refining by applying a vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
Abstract
A Ti-Al alloy having an Al content of at least 40% by mass, said alloy being produced using an alloy material comprising a titanium material and an aluminum material and having a total oxygen content of at least 0.1% by mass, is melted and held in an atmosphere of at least 1.33 Pa according to a melting process incorporating a water-cooled copper vessel, thereby reducing the oxygen content of the Ti-Al based alloy.
Description
Technical field
The present invention relates to a kind of method of deoxidation of Ti-Al systems alloy, its be from using it is being made up of titanium material and aluminum,
Method of the Ti-Al systems alloy that total alloy material containing oxygen more than 0.1 mass % is made except deoxygenating.
Background technology
In recent years, as the metal former material towards aircraft, automobile, Ti-Al systems alloy need improve constantly.Manufacturing this
During the titanium alloys such as the Ti-Al systems alloy with active metal titanium as principal component of sample, needs prevent pollution caused by the oxygen in melting,
All the time method (VAR), electron beam melting (EB), plasma-arc are melted using vacuum arc and melt method (PAM), vacuum sense
Method (VIM), water-cooled copper formula induction melting method (CCIM) etc. should be melted and melt method.
In above-mentioned melting method, melting method as VAR, EB, VIM is the melting of the melting that alloy is carried out under vacuum atmosphere
Method, in the melting of Ti-Al systems alloy, using such melting method in the case of, serve not only as the Al of alloying element, and Ti
Also volatilize in melting and lose.That is, in industrial technology, Ti-Al systems alloy is controlled into target composition is
Extremely difficult, as a result, present situation is to also result in the increase of manufacturing cost.
In addition, for the few Ti-Al systems alloy of melting oxygen content, using the few high-grade titanium material manufacture of oxygen content
Ti-Al systems alloy is effective, but high-grade titanium material is expensive, particularly have the tendency of in recent years it is surging, therefore
Although wanting to use more than the oxygen content than high-grade titanium material but cheap titanium sponge, scrap feed material, rutile ore
(TiO2) etc. more low-grade titanium material grow to even greater heights the demand that manufactures Ti-Al alloys.
Ti is active metal, and impurity present in the atmosphere for melting, particularly extremely strong with the bonding force of oxygen, therefore is reduced
From the oxygen of outside intake in melting, the countermeasure for how preventing polluting was being studied always in the past.But present situation is, it is not easy to will once
The oxygen of the solid solution in Ti is removed, and its research itself is few, has such motion shown below as prior art.
In patent document 1, disclose with regard to the manufacture method of hypoxemia Ti-Al systems alloy and sending out for hypoxemia Ti-Al systems alloy
It is bright, record in its [0013rd] section, " if higher than 1 × 10-2Al is forcibly removed under the vacuum atmosphere of Torr, then liquation therewith
In oxygen amount also reduce, by forcibly removing from the Al content constituted than the final goal more liquation of the composition containing Al
Remove Al such that it is able to the Ti-Al systems alloy of final goal composition is manufactured, while oxygen can be made to be reduced to below 200ppm.”.
That is, the manufacture method of the hypoxemia Ti-Al systems alloy that patent document 1 is recorded is less than 1.33Pa (1 × 10-2Torr)
Pressure high vacuum atmosphere under manufacture the method for hypoxemia Ti-Al systems alloy, in the melting under such high vacuum atmosphere, no
Only as the Al of alloying element, and also there is volatilization loss in Ti, although it may be said that as the manufacturer of hypoxemia Ti-Al systems alloy
Method is effective method, but needs and add more than neededly Ti and Al, worries the increase of manufacturing cost.
In addition, in patent document 2, disclose the invention with regard to hypoxemia Ti-Al system's alloys and its manufacture method, its
[0010] section is recorded, " present invention is for solving the above problems a little, it is therefore intended that, in the alloy system with Ti-Al as principal component
Melting in, use Ca deoxidations, superfluous Ca evaporations are removed and pollution-free uniform melting, thus highly purified hypoxemia Ti- is provided
Al systems alloy and its manufacture method.”.
The method can be described as the effective ways for manufacturing hypoxemia Ti-Al systems alloy, be melted through metal Ca additions
And the method that metal Ca removed, was subsequently used for multiple operations of the melting for homogenizing, in addition, be also due to metal Ca being solid-solution in
In titanium, therefore, it is difficult to the method for completely removing residual Ca, is to worry the increase of manufacturing cost and manufacturing time, be not completely removed
Residual Ca caused by Ti-Al systems alloy pollution, the method for the change of various characteristics.
In patent document 3, the invention of the ingot casting manufacture method with regard to TiAl-base alloy is disclosed, in its [0017th] section
Recording can reduce oxygen content in the Zone Full of ingot casting.In addition, described in its claim 1, " a kind of TiAl-base alloy
Ingot casting manufacture method, it is characterised in that the oxygen content of Ti raw materials is set into below 800ppm, the oxygen content of Al raw materials is set to
Below 100ppm, and their oxygen content is set into below 2000ppm in the case where other alloying components are Cr, V, Nb,
Its oxygen content is set into below 3000ppm in the case where other alloying components are Mn ".
It can be seen that, the ingot casting manufacture method of the TiAl-base alloy described in patent document 3 can be described as that ingot casting can be reduced
The effective ways of oxygen content, but the method is to obtain the low TiAl bases of oxygen content using the low high-grade material of oxygen content to close
The method of gold, rather than using the method for the higher low-grade Ti materials of oxygen content.In addition, only describing Al's in embodiment
Content is relatively low be 30 mass % TiAl alloy.
In addition, in patent document 4, disclosing the invention of the casting method with regard to Ti-Al alloy mo(u)lding, describe and will make
Titanium sponge for raw material is melted, and in the molten titanium, adds the aluminium as raw material, modulate the titanium of the titanium containing ormal weight and aluminium-
Aluminium alloy, the oxygen content that the titanium sponge has been recorded in its section of claim 2 and [0020th] is below 350ppm, in addition, real
Apply recorded in example titanium sponge oxygen content be 0.03wt%.
It can be seen that, the casting method of the Ti-Al alloy mo(u)lding described in patent document 4 is to use oxygen content as raw material
For high-grade titanium sponge of below 350ppm (below 0.035 mass %), using the low high-grade material of oxygen content
Method of the material to obtain the low Ti-Al alloy mo(u)lding of oxygen content, rather than using the higher low-grade titanium material of oxygen content
Method.In addition, the content that Al is only described in embodiment it is relatively low be 34 mass % Ti-Al alloy mo(u)lding.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 5-59466 publication
Patent document 2：Japanese Unexamined Patent Publication 5-140669 publication
Patent document 3：Japanese Unexamined Patent Publication 2009-113060 publications
Patent document 4：Japanese Unexamined Patent Publication 5-154642 publication
The content of the invention
Problems to be solved by the invention
The present invention is completed to solve the problems, such as above-mentioned conventional, and its problem is, there is provided a kind of Ti-Al systems alloy
Method of deoxidation, it uses the high low-grade titanium material of oxygen content, even if be not set to high vacuum atmosphere also can be easily manufactured
Target is constituted and the few Ti-Al systems alloy of oxygen content.
Means for solving the problem
The method of deoxidation of Ti-Al systems alloy of the present invention is characterised by, will using it is being made up of titanium material and aluminum,
Total alloy material containing oxygen more than 0.1 mass % is made, the Ti-Al systems containing Al more than 40 mass % close
Gold is melted and is kept under the atmosphere of more than 1.33Pa by using the melting method of water-cooled copper container, thus makes above-mentioned Ti-Al systems
The oxygen content of alloy is reduced.
Additionally, it is preferred that before above-mentioned Ti-Al alloys are melted or in melting, being added in calcium oxide and having coordinated 35～95
The CaO-CaF of the calcirm-fluoride of quality %2Flux.
In addition, the melting method of above-mentioned use water-cooled copper container is preferably electric arc melts method, plasma-arc melting method, sensing
Any one in melting method.
Invention effect
The method of deoxidation of Ti-Al systems of the invention alloy, using more than a height of 0.1 mass % of oxygen content low-grade
And cheap titanium material, even if be not set to high vacuum atmosphere also can be easily manufactured Al and Ti volatilization loss it is few (substantially
Do not reduce), target composition and the few Ti-Al systems alloy of oxygen content.
If it should be noted that being 40 matter by the Al content obtained by the method for deoxidation of the Ti-Al systems alloy of the present invention
Amount more than the % and few Ti-Al systems alloy of oxygen content is diluted with hypoxemia titanium, then can be easier to and to be manufactured inexpensively Al content low
In the few Ti-Al systems alloy of 40 mass % and oxygen content.
Description of the drawings
Fig. 1 is the chart for representing the Al content in the Ti-Al systems alloy after melting and the relation of oxygen content.
Fig. 2 is expression CaO-CaF2The oxygen in Ti-Al systems alloy after the use level of the calcirm-fluoride in flux and melting
The chart of the relation of content.
Fig. 3 is the chart of the relation of the mass change before and after representing the melting time of Ti-Al systems alloy sample and melting.
Fig. 4 is the chart of the relation of the mass change before and after representing the Al content of Ti-Al systems alloy sample and melting.
Fig. 5 is the chart for representing the maximum oxygen amount of solid solution in Ti-Al systems alloy.
Specific embodiment
The present inventor etc. in order to find use low-grade titanium sponge, scrap feed material, rutile ore (TiO2) etc. it is a large amount of
Oxygen containing low-grade titanium material, even if being not set to, high vacuum atmosphere can also be easily manufactured Al and the volatilization loss of Ti is few
The method of the few Ti-Al systems alloy of (substantially not reducing), the composition of target and oxygen content, has made intensive studies.
According to X.L.Li, R.Hillel, F.Teyssandier, S.K.Choi, andF.J.J.Van.Loo, Acta
Metall.Mater., 3 yuan of the Ti-Al-O for illustrating in 40 { 11 } 3147-3157 (1992) are phasor, solid in Ti-Al systems alloy
Molten maximum oxygen amount is envisioned for relation as the dotted line shown in Fig. 5.By the fact, the present inventor etc. is conceived to containing high
The solid solution oxygen concentration step-down of the Ti-Al systems alloy of the Al of concentration.As a result, finding even with low-grade titanium material system
The Ti-Al systems alloy made, if the Ti-Al systems alloy containing Al more than 40 mass %, even if then not high vacuum atmosphere
Under, deoxygenation is also carried out in the melting using water-cooled copper container, and, the volatilization loss of Al, Ti can be easily manufactured
Few (substantially not reducing), the hypoxemia Ti-Al systems alloy of target composition, so that completing the present invention.
In addition, the result further studied also finds, before Ti-Al systems alloy is melted or in melting, by inciting somebody to action
The CaO-CaF of the special component composition of the not solid solution in titanium2Flux adds as deoxygenation accelerator, so as to the deoxidation is anti-
Should more reliably carry out.It should be noted that adding CaO-CaF to Ti-Al systems alloy2The deoxygenation that flux brings is,
As the Al of the deoxidation product of Ti-Al systems alloy2O3It is solid-solution in added CaO-CaF2So as to showing for embodying in flux
As the CaO-CaF2The fusing point of flux must be substantially below the 1800K of the melting temperature for being speculated as Ti-Al systems alloy.
Hereinafter, the present invention is further described based on embodiment.
The method of deoxidation of Ti-Al systems alloy of the present invention is：To be contained using being made up of titanium material and aluminum, total
Ti-Al systems that the alloy material of oxygen more than 0.1 mass % is made, containing Al more than 40 mass % alloy exists
Under the atmosphere of more than 1.33Pa, method, plasma-arc are melted by using the electric arc of water-cooled copper container and melts method, induction melting method
Melt and keep Deng melting method, the method for thus reducing the oxygen content of above-mentioned Ti-Al alloys, as above-mentioned titanium material, is used
Low-grade titanium sponge, scrap feed material, rutile ore (TiO2) etc..
In the making of Ti-Al systems alloy, using low-grade titanium sponge, scrap feed material, rutile ore (TiO2) etc.
The reasons why titanium material more than oxygen content is, these titanium material are cheap and easy for should.These are made up of titanium material and aluminum
Total content of oxygen of alloy material be set to the reasons why more than 0.1 mass % being and be, if the total of the oxygen in alloy material contains
Amount is less than 0.1 mass %, then the content of oxygen is little and deoxidation there is no need in itself.It should be noted that in the present invention, oxygen contains
The upper limit of amount is not specified by, but the upper limit of total content of the oxygen for thinking actually to contain in above-mentioned alloy material is 25.0 mass %
Left and right.
In addition, the Ti-Al systems alloy that above-mentioned use is made by the alloy material that titanium material and aluminum are constituted
The reasons why Al content is set to more than 40 mass % is, if the Al content in Ti-Al systems alloy is more than 40 mass %, even
Under the atmosphere of more than 1.33Pa rather than under high vacuum atmosphere, the deoxygenation of Ti-Al systems alloy using water-cooled copper also by being held
The electric arc of device melts the melting methods such as method, plasma-arc melting method, induction melting method to be carried out.The deoxygenation is by containing in Al
Solid solution oxygen concentration is reduced in the high Ti-Al systems alloy of amount, and oversaturated oxygen bonds together to form Al with Al2O3So as to the phenomenon for embodying.
That is, oxygen is with Al2O3Form discharge from Ti-Al systems alloy.If the Al content of Ti-Al systems alloy is more than 40 mass %, take off
Oxygen reacts to be carried out at a temperature of substantially more than the 1800K melted in Ti-Al systems alloy.
It should be noted that in the present invention, the Ti- being made using the alloy material being made up of titanium material and aluminum
The upper limit of the Al content of Al systems alloy does not have special provision, but preferred upper limit is 70 mass %, and more preferably 60 mass % enter one
Step is preferably 50 mass %.Ti-Al systems alloy also containing impurity such as other alloying elements, the oxygen beyond Al, if as alloy unit
The content of the Al of element becomes excessive, then the ratio of Ti tails off and can not be referred to as Ti-Al systems alloy.In addition, being set to more than 1.33Pa
Atmosphere under, its upper limit is not specified by, but is contemplated that the actual upper limit is 5.33 × 105Pa or so.In addition, atmosphere pressures
Preferred lower limit is 10Pa, more preferably 1.0 × 102Pa, from the easy degree grade of control climate, is particularly preferably set to
1.0×104More than Pa.
In addition, when carrying out the deoxidation of Ti-Al systems alloy, before Ti-Al alloys are melted or in melting, being fluxed by addition
Agent can more reliably carry out deoxygenation as deoxygenation accelerator.Promote as deoxygenation in the Ti-Al systems alloy
Enter agent addition flux be necessary for fusing point less than Ti-Al systems alloy melting temperature low melting point flux, the present invention in
Among low melting point flux, employ from from the viewpoint of performance, quality, cost and think most preferred CaO-CaF2Flux.
When the few Ti-Al systems alloy of oxygen content is manufactured, by by the CaO-CaF2Flux is added to Ti-Al systems alloy
In further promoted so as to deoxygenation, if but as described above, CaO-CaF2The fusing point of flux is the molten of Ti-Al systems alloy
Then deoxygenation is not promoted solution temperature i.e. about below 1800K.By flux addition so as to deoxygenation be promoted the reasons why
It is the Al generated by deoxygenation2O3Absorbed in flux, thus Al2O3Activity reduce, therewith oxygen concentration drop
It is low.
It should be noted that Al deoxygenations can be represented that reaction constant can be represented by formula (2) by following formula (1).
In the Al/Al for embodying this deoxygenation2O3Under poised state, the K of formula (2) is certain, but is not almost had based on the aAl of deoxygenation
Change, if therefore the aAl in following formula (2)2O3Reduce (infinite approach zero if being absorbed in flux), therewith
PO in formula (2)2(oxygen concentration) is also reduced.
2Al(inAl)+3/2O2(inTi-Al)=Al2O3Formula (1)
K=aAl2O3/(aAl2·PO2 3/2) formula (2)
In CaO-CaF2In the case that the use level of the calcirm-fluoride of flux is less than 35 mass %, CaO-CaF2Flux
Fusing point is more than 1800K, it is impossible to obtain adding CaO-CaF2The facilitation of the deoxygenation that flux brings.On the other hand, if
Then there is pollution caused by fluorine more than 95 mass % in the use level of calcirm-fluoride.Therefore, in the present invention, it is added in calcium oxide and matches somebody with somebody
The CaO-CaF of the calcirm-fluoride of 35～95 mass % is closed2Flux.The CaO-CaF2The more preferably cooperation of the calcirm-fluoride of flux
Measure as 60～90 mass %.It should be noted that CaO-CaF2Functionality, quality and appealing design of the addition of flux relative to Ti-Al systems alloy
Choosing is set to 5～20% quality.
It should be noted that the method for deoxidation for illustrating the Ti-Al systems alloy of the present invention is Al, Ti of Ti-Al systems alloy
Volatilization loss few (substantially not reducing), make the method that oxygen content reduces, but the content of Al, the Ti that substantially can be allowed
Reduced rate is less than 5.0%.That is, substantially representing less than 5.0%.
Embodiment
Hereinafter, enumerate embodiment and further illustrate the present invention, but the present invention is not limited by following embodiments originally, also may be used
Implemented with suitably being changed in the range of the purport that can meet the present invention, these are all contained in the technology model of the present invention
In enclosing.
(relation of the oxygen content after Al content and melting in Ti-Al systems alloy)
Plasma-arc melts method, fluxless addition
By being melted with the 100kW plasma arc furnaces using water-cooled copper container, keep thereafter, so as to implement using by titanium
The deoxidation of Ti-Al systems that alloy material is made, that oxygen content the is 0.8 mass % alloy that material and aluminum are constituted.For
The Al content of research Ti-Al systems alloy to melting caused by the impact that brings of deoxygenation, prepared to use Al content respectively
Ti-Al systems alloy for 10 mass %, 20 mass %, 30 mass %, 40 mass %, 50 mass %, 60 mass % is made
Sample.It should be noted that each sample is set into 100g, plasma gas only uses Ar, the pressure in melting to be set to 1.20
×105Pa.The Al concentration (Al content) in Ti-Al systems alloy after being melted, kept using 100kW plasma arc furnaces
Fig. 1 is shown in the relation of the oxygen concentration (oxygen content) after melting.
It can be seen from Fig. 1, the oxygen content after the melting of Ti-Al systems alloy of the Al content to 10～30 mass % exists
It is not changed in before and after 0.8 mass %, but oxygen content after melting for Al content is Ti-Al systems alloys more than 40 mass %
Reduce.From the result, if more than mass % of Al content 40 of Ti-Al systems alloy, then by melting, deoxygenation enters
OK.
Plasma-arc melts method, has flux to add
In addition, in above-mentioned test melt after oxygen content reduce, Al content be 30 mass %, 40 mass %, 60 matter
The Ti-Al systems alloy of amount %, in order to study addition CaO-CaF2The situation of the promotion of the deoxygenation that flux brings, except adding
Plus CaO-CaF2Beyond flux, it is set to, with without identical condition during flux, implement based on plasma-arc
The deoxidation of the Ti-Al alloys of melting.It should be noted that CaO-CaF2The use level of the calcirm-fluoride in flux is set to 80 matter
Amount %, CaO-CaF2The addition of flux is set to 5g.Show the result in Fig. 1.
It can be seen from Fig. 1, in addition CaO-CaF2In the case of flux, Al content is 40 mass %, 60 mass %
Under either case, all with without CaO-CaF2The situation of flux is compared, and further promotes deoxidation.In addition, after for melting
Ti-Al alloys in oxygen content (mass ratio, following oxygen content is all represented with mass ratio.) for, it is 40 matter in Al content
In the case of amount %, without CaO-CaF2It is 5400ppm during flux, adds CaO-CaF2It is 2400ppm during flux, separately
Outward, in the case that Al content is 60 mass %, without CaO-CaF2It is 280ppm during flux, adds CaO-CaF2Flux
When be 220ppm.
Using titania meterial as titanium material situation
In addition, separately being kept thereafter, so as to reality by being melted with the 100kW plasma arc furnaces using water-cooled copper container
Apply using that alloy material is made, the Ti-Al that oxygen content is 16.3 mass % being made up of titania meterial and aluminum
It is the deoxidation of alloy.Now, the Al content of Ti-Al systems alloy is set to 60 mass %, implements addition CaO-CaF2Flux
Situation with without both situations.It should be noted that plasma gas only uses Ar, the pressure in melting to be set to 1.20
×105Pa, CaO-CaF2The use level of the calcirm-fluoride in flux is set to 80 mass %, CaO-CaF2The addition of flux sets
For 5g.
Melted, keep after Ti-Al systems alloy in oxygen content without CaO-CaF2In the case of flux
For 540ppm or so, even titanium oxide is used for into raw material, oxygen content is also considerably sent out more than material as 10 mass %
Wave deoxidation effect.In addition CaO-CaF2In the case of flux, the oxygen content in Ti-Al systems alloy is 330ppm or so, energy
Enough it is identified through adding flux, further plays deoxidation effect.
Induction melting method, fluxless addition
In addition, replace plasma-arc to melt method, using the induction melting method using water-cooled copper container, with above-mentioned plasma
Electric arc melts method similarly to be implemented from the deoxidation of the Ti-Al systems alloy that oxygen content is 0.8 mass % to test.In order to study Ti-Al
It is impact that the Al content of alloy is brought to deoxygenation, respectively melting Al content is 37 mass %, 39 mass %, 51 matter
The Ti-Al systems alloy of amount %.It should be noted that in each melting, meltage is set to 20kg, melts atmosphere in chamber and be set to Ar, melt
Pressure in solution is set to 7.0 × 104Pa.The Al in Ti-Al systems alloy after use feeling is answered calciner to be melted, kept is dense
Degree (Al content) is melted the data of the situation of method with the relation of oxygen concentration (oxygen content) and using plasma-arc and is shown in the lump
Fig. 1.
It is same with the situation that method is melted using plasma-arc it can be seen from Fig. 1, it is attached more than 40 mass % from Al content
Closely start, the oxygen content after melting is reduced.From the result, in the case of induction melting method also with plasma-arc melt
Method is same, and by melting, deoxygenation is carried out if the Al content of Ti-Al systems alloy is changed into more than 40 mass %.
Induction melting method, there is flux to add
In addition, for the Ti-Al systems alloy that Al content is 40 mass %, 48 mass %, 59 mass %, in order to study addition
CaO-CaF2The promotion situation of the deoxygenation that flux brings, implements based on the induction melting method for using water-cooled copper container
The deoxidation of Ti-Al alloys.It should be noted that in each melting, melting atmosphere in chamber and being set to Ar, the pressure in melting is set to 7.0
×104Pa, CaO-CaF2The use level of the calcirm-fluoride in flux is set to 80 mass %, CaO-CaF2The addition of flux sets
For the 10% of metal quality.Show the result in Fig. 1.
It can be seen from Fig. 1, using the induction melting method using water-cooled copper container in the case of, without CaO-CaF2Help
In the case of flux, Al content is under 40 mass %, 48 mass %, the either case of 59 mass %, all with without CaO-
CaF2Compare in the case of flux, further promote deoxidation.
(CaO-CaF2The use level of the calcirm-fluoride in flux)
Using the Ti-Al alloys that Al content is 40 mass %, change the CaO-CaF of addition2The calcirm-fluoride of flux is matched somebody with somebody
Resultant, afterwards all under the conditions of with the above embodiments identical, by using the plasma electric of 100kW plasma arc furnaces
Arc melts the deoxidation for implementing Ti-Al alloys.It should be noted that CaO-CaF2Flux is paved with advance the Ti-Al before melting and closes
Around gold.Show the result in Fig. 2.
With without CaO-CaF2The oxygen content after melting in the case of flux is on the basis of 5400ppm, to have studied
Addition CaO-CaF2The degree of the deoxygenation facilitation effect that flux brings.It can be seen from Fig. 2, it is added in calcium oxide and coordinates
The CaO-CaF of mass % of calcirm-fluoride 60～902Most significant deoxygenation facilitation effect is obtained during flux, but has been coordinated
Also there is big deoxygenation facilitation effect when more than 40 mass %.From the result of the test, by being added on calcium oxide in
The CaO-CaF of the calcirm-fluoride of 35～95 mass % is coordinated2Flux can obtain deoxidation effect.It should be noted that according to
Fig. 2 understands, is added in calcium oxide and has coordinated the CaO-CaF of mass % of calcirm-fluoride 302In the case of flux, deoxidation is not promoted
Enter.This is because, CaO-CaF2The fusing point of flux is too high and does not melt.
(quality of the Ti-Al systems alloy before and after melting and the change of Al content)
The quality of the above-mentioned each sample before and after being melted by research and the change of Al content, have rated Ti-Al systems alloy
The finished material rate that volatilization when being melted using 100kW plasma arc furnaces is brought.Now, plasma gas only uses Ar,
Pressure in melting is set to 1.20 × 105Pa。
First, the relation of the mass change of the sample before and after melting time and melting is shown in into Fig. 3.It can be seen from Fig. 3,
The quality of sample is not changed in substantially before and after melting.Then, by the sample before and after the Al concentration (content) of sample and melting
The relation of mass change is shown in Fig. 4.It can be seen from Fig. 4, the quality of sample is not changed in substantially before and after melting, and Al is without because making
Volatilized with the melting of 100kW plasma arc furnaces.From these results, as one of the melting using water-cooled copper container
Use plasma arc furnace melting in, in the melting of Ti-Al systems alloy, as alloying element Al and Ti not
Volatilization.
Illustrate the present invention with reference to specific embodiment in detail, but to those skilled in the art obviously can be with
Various changes, modification in addition without departing from the spirit and scope in the present invention.
The application based on Japanese patent application (Japanese Patent Application 2014-180431) filed in September in 2014 4 days, 2014 years 9
Japanese patent application (Japanese Patent Application 2014-180432), Japanese patent application filed in 16 days January in 2015 filed in the moon 4
(Japanese Patent Application 2015-6764), Japanese patent application (Japanese Patent Application 2015-6765) filed in 16 days January in 2015,2015 years
Japanese patent application (Japanese Patent Application 2015-131029) filed in June 30, its content is incorporated by reference this specification
In.
Industrial applicability
In accordance with the invention it is possible to the low Ti-Al systems alloy of oxygen content is manufactured inexpensively, as the gold towards aircraft, automobile
The manufacture method of category former material is useful.
Claims (3)
1. the method for deoxidation of a kind of Ti-Al systems alloy, it is characterised in that
To be made using alloy material containing oxygen more than 0.1 mass % be made up of titanium material and aluminum, total
, the Ti-Al systems alloy containing Al more than 40 mass % under the atmosphere of more than 1.33Pa, by using water-cooled copper container
Melting method melts and keeps,
Thus making the oxygen content of Ti-Al systems alloy reduces.
2. the method for deoxidation of Ti-Al systems according to claim 1 alloy, wherein,
Before the Ti-Al alloys are melted or in melting, it is added in calcium oxide and has coordinated the fluorination of 35～95 mass %
The CaO-CaF of calcium2Flux.
3. the method for deoxidation of Ti-Al systems according to claim 1 and 2 alloy, wherein,
The melting method of the use water-cooled copper container is that electric arc melts appointing in method, plasma-arc melting method, induction melting method
It is a kind of.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-180431 | 2014-09-04 | ||
| JP2014180432 | 2014-09-04 | ||
| JP2014180431 | 2014-09-04 | ||
| JP2014-180432 | 2014-09-04 | ||
| JP2015-006765 | 2015-01-16 | ||
| JP2015-006764 | 2015-01-16 | ||
| JP2015006764 | 2015-01-16 | ||
| JP2015006765 | 2015-01-16 | ||
| JP2015-131029 | 2015-06-30 | ||
| JP2015131029A JP6392179B2 (en) | 2014-09-04 | 2015-06-30 | Method for deoxidizing Ti-Al alloy |
| PCT/JP2015/074970 WO2016035824A1 (en) | 2014-09-04 | 2015-09-02 | METHOD FOR DEOXIDIZING Ti-Al ALLOY |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106661670A true CN106661670A (en) | 2017-05-10 |
| CN106661670B CN106661670B (en) | 2018-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580046835.3A Active CN106661670B (en) | 2014-09-04 | 2015-09-02 | The method of deoxidation of Ti-Al systems alloy |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170283906A1 (en) |
| EP (1) | EP3190196B1 (en) |
| JP (1) | JP6392179B2 (en) |
| CN (1) | CN106661670B (en) |
| AU (1) | AU2015312896B2 (en) |
| RU (1) | RU2673589C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809013A (en) * | 2020-12-30 | 2021-05-18 | 中国科学院过程工程研究所 | Preparation method of Ti-6Al-4V alloy powder |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11319614B2 (en) | 2014-11-04 | 2022-05-03 | Kobe Steel, Ltd. | Method for deoxidizing Al—Nb—Ti alloy |
| US11377714B2 (en) | 2017-02-23 | 2022-07-05 | Kobe Steel, Ltd. | Method for producing Ti-Al alloy |
| JP7412197B2 (en) * | 2020-02-03 | 2024-01-12 | 株式会社神戸製鋼所 | Method for manufacturing Ti-Al alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103732A (en) * | 1990-08-24 | 1992-04-06 | Univ Kyoto | Manufacture of intermetallic compound al3 ti |
| JPH0559466A (en) * | 1991-08-30 | 1993-03-09 | Kobe Steel Ltd | Production of low oxygen ti-al alloy and low oxygen ti-al alloy |
| JPH05140669A (en) * | 1991-11-15 | 1993-06-08 | Kobe Steel Ltd | Low oxygen ti-al alloy and its manufacture |
| CN1420189A (en) * | 2001-11-21 | 2003-05-28 | 中国科学院金属研究所 | Process for vacuum induction smelting Ti-Al alloy |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3046349B2 (en) * | 1990-11-14 | 2000-05-29 | ゼネラル・エレクトリック・カンパニイ | Method of treating titanium-aluminum modified with chromium and niobium |
| US5102450A (en) * | 1991-08-01 | 1992-04-07 | General Electric Company | Method for melting titanium aluminide alloys in ceramic crucible |
| JP3125393B2 (en) * | 1991-12-06 | 2001-01-15 | 日本鋼管株式会社 | Casting method of titanium-aluminum alloy casting |
| US5332545A (en) * | 1993-03-30 | 1994-07-26 | Rmi Titanium Company | Method of making low cost Ti-6A1-4V ballistic alloy |
| US6004368A (en) * | 1998-02-09 | 1999-12-21 | Hitchiner Manufacturing Co., Inc. | Melting of reactive metallic materials |
| RU2269584C1 (en) * | 2004-07-30 | 2006-02-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Titanium-base alloy |
| JP5048222B2 (en) * | 2005-04-01 | 2012-10-17 | 株式会社神戸製鋼所 | Method for producing long ingots of active refractory metal alloys |
| RU2463365C2 (en) * | 2010-09-27 | 2012-10-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | METHOD TO PRODUCE INGOT OF PSEUDO β-TITANIUM ALLOY, CONTAINING (4,0-6,0)%Al, (4,5-6,0)% Mo, (4,5-6,0)% V, (2,0-3,6)%Cr, (0,2-0,5)% Fe, (0,1-2,0)%Zr |
-
2015
- 2015-06-30 JP JP2015131029A patent/JP6392179B2/en active Active
- 2015-09-02 EP EP15838357.0A patent/EP3190196B1/en active Active
- 2015-09-02 CN CN201580046835.3A patent/CN106661670B/en active Active
- 2015-09-02 RU RU2017110549A patent/RU2673589C2/en active
- 2015-09-02 US US15/508,384 patent/US20170283906A1/en not_active Abandoned
- 2015-09-02 AU AU2015312896A patent/AU2015312896B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103732A (en) * | 1990-08-24 | 1992-04-06 | Univ Kyoto | Manufacture of intermetallic compound al3 ti |
| JPH0559466A (en) * | 1991-08-30 | 1993-03-09 | Kobe Steel Ltd | Production of low oxygen ti-al alloy and low oxygen ti-al alloy |
| JPH05140669A (en) * | 1991-11-15 | 1993-06-08 | Kobe Steel Ltd | Low oxygen ti-al alloy and its manufacture |
| CN1420189A (en) * | 2001-11-21 | 2003-05-28 | 中国科学院金属研究所 | Process for vacuum induction smelting Ti-Al alloy |
Non-Patent Citations (2)
| Title |
|---|
| 任觉世: "《工业矿产资源开发利用手册》", 31 January 1993, 武汉工业大学出版社 * |
| 鲁岩檀等: "《青工车工操作技术要领图解速查手册》", 31 July 2008, 山东科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809013A (en) * | 2020-12-30 | 2021-05-18 | 中国科学院过程工程研究所 | Preparation method of Ti-6Al-4V alloy powder |
| CN112809013B (en) * | 2020-12-30 | 2022-05-27 | 中国科学院过程工程研究所 | Preparation method of Ti-6Al-4V alloy powder |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2673589C2 (en) | 2018-11-28 |
| CN106661670B (en) | 2018-05-04 |
| AU2015312896B2 (en) | 2018-10-18 |
| EP3190196B1 (en) | 2019-05-01 |
| JP2016135907A (en) | 2016-07-28 |
| RU2017110549A3 (en) | 2018-10-08 |
| AU2015312896A1 (en) | 2017-03-30 |
| EP3190196A1 (en) | 2017-07-12 |
| JP6392179B2 (en) | 2018-09-19 |
| RU2017110549A (en) | 2018-10-08 |
| US20170283906A1 (en) | 2017-10-05 |
| EP3190196A4 (en) | 2018-03-28 |
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