CN106661670B - The method of deoxidation of Ti-Al systems alloy - Google Patents
The method of deoxidation of Ti-Al systems alloy Download PDFInfo
- Publication number
- CN106661670B CN106661670B CN201580046835.3A CN201580046835A CN106661670B CN 106661670 B CN106661670 B CN 106661670B CN 201580046835 A CN201580046835 A CN 201580046835A CN 106661670 B CN106661670 B CN 106661670B
- Authority
- CN
- China
- Prior art keywords
- alloy
- mass
- melting
- systems alloy
- content
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- C22C21/00—Alloys based on aluminium
Abstract
By Ti Al system's alloys of Al being made using the alloy material of oxygen containing more than 0.1 mass % be made of titanium material and aluminum, total, containing more than 40 mass % under the atmosphere of more than 1.33Pa, melt and keep by using the melting method of water cooling copper container, thus make the oxygen content of the Ti Al alloys reduce.
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 of titanium material and aluminum,
The Ti-Al systems alloy that the alloy material of total oxygen containing more than 0.1 mass % is made is except the method for deoxidation.
Background technology
In recent years, need to be continuously improved as the metal former material towards aircraft, automobile, Ti-Al systems alloy.Manufacturing this
Sample using active metal titanium is the Ti-Al systems alloy of principal component when titanium alloy, it is necessary to pollution caused by preventing the oxygen in melting,
Method (VAR), electron beam melting (EB), plasma-arc are melted using vacuum arc all the time 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 for 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 and lose in melting.That is, in industrial technology, it is for target composition by the alloy control of Ti-Al systems
Extremely difficult, as a result, present situation is to also result in the increase of manufacture cost.
In addition, for the few Ti-Al systems alloy of melting oxygen content, the few high-grade titanium material manufacture of oxygen content is used
Ti-Al systems alloy is effective, but high-grade titanium material is expensive, particularly has surging tendency in recent years, therefore
Though want using than high-grade titanium material oxygen content more than cheap titanium sponge, scrap feed material, rutile ore
(TiO2) etc. more low-grade titanium material grow to even greater heights to manufacture the demand of Ti-Al alloys.
Ti is active metal, impurity present in the atmosphere with 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 pollution was being studied always in the past.But present situation is, it is not easy to will once
The oxygen being dissolved in Ti removes, its research is few in itself, has such motion as shown below as the prior art.
In patent document 1, the hair of the manufacture method and hypoxemia Ti-Al systems alloy on hypoxemia Ti-Al systems alloy is disclosed
It is bright, recorded in its [0013] 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 being removed from the Al content formed than final goal the more liquation of the composition containing Al
Al is removed, so as to manufacture the Ti-Al systems alloy of final goal composition, 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
Al only as alloying element, and volatilization loss also occurs for Ti, although it may be said that manufacturer as hypoxemia Ti-Al systems alloy
Method is effective method, but needs and add Ti and Al more than neededly, worries the increase of manufacture cost.
In addition, in patent document 2, disclose the invention on 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 using Ti-Al as principal component
Melting in, with Ca deoxidations, by superfluous Ca evaporations remove and it is pollution-free uniformly melt, thus the hypoxemia Ti- of high-purity is provided
Al systems alloy and its manufacture method.”.
This method can be described as the effective ways for manufacturing hypoxemia Ti-Al systems alloy, be to add to melt by metal Ca
And the method that metal Ca removed, was subsequently used for multiple processes of the melting to homogenize, it is solid-solution in addition, being also due to metal Ca
It is to worry the increase of manufacture cost and manufacturing time, be not completely removed therefore, it is difficult to remove the method for residual Ca completely in titanium
The residual pollution of Ti-Al systems alloy, method of the change of various characteristics caused by Ca.
In patent document 3, the invention of the ingot casting manufacture method on TiAl-base alloy is disclosed, in its [0017] section
Oxygen content can be reduced in the Zone Full of ingot casting by recording.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 to below 800ppm, the oxygen content of Al raw materials is set to
Below 100ppm, and their oxygen content is set to below 2000ppm in the case where other alloying components are Cr, V, Nb,
Its oxygen content is set to below 3000ppm in the case where other alloying components are Mn ".
As 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 this method is to be closed using the low high-grade material of oxygen content to obtain the low TiAl bases of oxygen content
The method of gold, rather than the method using the higher low-grade Ti materials of oxygen content.In addition, only describe Al's in embodiment
The TiAl alloy that it is 30 mass % that content is relatively low.
In addition, in patent document 4, the invention of the casting method on Ti-Al alloy moulding is disclosed, describing to make
Melted for the titanium sponge of raw material, in the molten titanium, add 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 claim 2 and [0020] section is below 350ppm, in addition, real
It is 0.03wt% to apply and the oxygen content of titanium sponge has been recorded in example.
As it can be seen that the casting method of the Ti-Al alloy moulding described in patent document 4 is to use oxygen content as raw material
For high-grade titanium sponge of below 350ppm (equivalent to below 0.035 mass %), the low high-grade material of oxygen content is used
Expect to obtain the method for the low Ti-Al alloy moulding of oxygen content, rather than use the higher low-grade titanium material of oxygen content
Method.In addition, the Ti-Al alloy moulding that it is 34 mass % that the content that Al is only described in embodiment is relatively low.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 5-59466 publications
Patent document 2：Japanese Unexamined Patent Publication 5-140669 publications
Patent document 3：Japanese Unexamined Patent Publication 2009-113060 publications
Patent document 4：Japanese Unexamined Patent Publication 5-154642 publications
The content of the invention
Problems to be solved by the invention
The present invention completes to solve upper above-mentioned conventional problem, its problem is, there is provided a kind of Ti-Al systems alloy
Method of deoxidation, it also can easily be manufactured using the high low-grade titanium material of oxygen content even if high vacuum atmosphere is not set to
The Ti-Al systems alloy that target forms and oxygen content is few.
The means used to solve the problem
The method of deoxidation of Ti-Al systems alloy of the present invention is characterized in that, will using it is being made of titanium material and aluminum,
The Ti-Al systems of Al that the alloy material of total oxygen containing more than 0.1 mass % is made, containing more than 40 mass % close
Gold is melted and is kept by using the melting method of water cooling copper container, thus make above-mentioned Ti-Al systems under the atmosphere of more than 1.33Pa
The oxygen content of alloy reduces.
Additionally, it is preferred that before above-mentioned Ti-Al alloys are melted or in melting, add and coordinated 35~95 in calcium oxide
The CaO-CaF of the calcirm-fluoride of quality %2Fluxing agent.
Method, plasma-arc melting method, sensing are melted in addition, the above-mentioned melting method using water cooling copper container is preferably electric arc
Any of melting method.
Invention effect
The method of deoxidation of Ti-Al systems according to the present invention alloy, uses the low-grade of a height of more than the 0.1 mass % of oxygen content
And cheap titanium material, even if be not set to high vacuum atmosphere also can easily manufacture Al and Ti volatilization loss it is few (substantially
Do not reduce), target composition and the few Ti-Al systems alloy of oxygen content.
It should be noted that if it is 40 matter by the Al content obtained by the method for deoxidation of the Ti-Al systems alloy of the present invention
Measure more than % and the 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 40 mass % and the few Ti-Al systems alloy of oxygen content.
Brief description of the drawings
Fig. 1 is the chart for the relation for representing Al content and oxygen content in the Ti-Al systems alloy after melting.
Fig. 2 is expression CaO-CaF2The oxygen in Ti-Al systems alloy after the use level of calcirm-fluoride in fluxing agent and melting
The chart of the relation of content.
Fig. 3 is the chart for melting relation of the time with melting front and rear mass change for representing Ti-Al systems alloy sample.
Fig. 4 is the chart of the relation for the mass change for representing that the Al content of Ti-Al systems alloy sample is front and rear with melting.
Fig. 5 is the chart for the maximum oxygen amount being dissolved in expression Ti-Al systems alloy.
Embodiment
The inventors of the present invention in order to find using 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 be not set to high vacuum atmosphere also can easily manufacture Al and Ti volatilization loss it is few
The method of (not reducing substantially), the composition of target and the few Ti-Al systems alloy of 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 shown in 40 { 11 } 3147-3157 (1992) are phasor, are consolidated 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 inventors of the present invention are conceived to containing height
The solid solution oxygen concentration of the Ti-Al systems alloy of the Al of concentration is lower.As a result, find even with low-grade titanium material system
Make the Ti-Al systems alloy formed, if the Ti-Al systems alloy of the Al containing more than 40 mass %, even if then non-high vacuum atmosphere
Under, deoxygenation also carries out in the melting using water cooling copper container, moreover, the volatilization loss of Al, Ti can be manufactured easily
Few (not reducing substantially), the hypoxemia Ti-Al systems alloy of target composition, so that completing the present invention.
In addition, the result further studied also found, before melt Ti-Al systems alloy or melt, pass through by
The CaO-CaF for the special component composition not being dissolved in titanium2Fluxing agent is added as deoxygenation accelerating agent, so that the deoxidation is anti-
Should more reliably it carry out.It should be noted that add CaO-CaF to Ti-Al systems alloy2The deoxygenation that fluxing agent is brought is,
Al as the deoxidation product of Ti-Al systems alloy2O3It is solid-solution in added CaO-CaF2So as to which that embodies shows in fluxing agent
As the CaO-CaF2The fusing point of fluxing agent must be substantially below the 1800K for 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：It will be contained using being made of titanium material and aluminum, total
The Ti-Al systems alloy of Al that the alloy material of the oxygen of more than 0.1 mass % is made, containing more than 40 mass % exists
Under the atmosphere of more than 1.33Pa, method is melted by using the electric arc of water cooling copper container, plasma-arc 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, uses
Low-grade titanium sponge, scrap feed material, rutile ore (TiO2) etc..
In the making of Ti-Al systems alloy, low-grade titanium sponge, scrap feed material, rutile ore (TiO are used2) etc.
The reasons why titanium material more than oxygen content is, these titanium material are cheap and easy for should.These are made of titanium material and aluminum
Alloy material oxygen total content be set to 0.1 mass % above is the reasons why be, if the total of the oxygen in alloy material contains
Amount is less than 0.1 mass %, then the content of oxygen is seldom and deoxidation is not necessarily 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 the total content for 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 formed
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 is held also by using water-cooled copper
The electric arc of device melts method, plasma-arc melts method, induction melting method etc. and melts method progress.The deoxygenation is by containing in Al
Measure and oxygen concentration reduction is dissolved in high Ti-Al systems alloy, oversaturated oxygen bonds together to form Al with Al2O3So as to the phenomenon embodied.
That is, oxygen is with Al2O3Form discharged from Ti-Al systems alloy.If the Al content of Ti-Al systems alloy is more than 40 mass %, take off
Oxygen reaction carries out at a temperature of substantially more than the 1800K that Ti-Al systems alloy melts.
It should be noted that in the present invention, the Ti- that is made using the alloy material being made 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 %, more preferably 60 mass %, into one
Step is preferably 50 mass %.Ti-Al systems alloy is also containing impurity such as other alloying elements beyond Al, oxygen, if as alloy member
The content of the Al of element becomes excessive, then the ratio of Ti tails off and cannot be known as Ti-Al systems alloy.In addition, it is 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, it is fluxing by adding before Ti-Al alloys are melted or in melting
Agent can more reliably carry out deoxygenation as deoxygenation accelerating agent.Promote in the Ti-Al systems alloy as deoxygenation
Into agent addition fluxing agent be necessary for fusing point less than Ti-Al systems alloy melting temperature low melting point fluxing agent, the present invention in
Among low melting point fluxing agent, employ and most preferred CaO-CaF is thought from the viewpoint of performance, quality, cost2Fluxing agent.
When manufacturing the few Ti-Al systems alloy of oxygen content, by by the CaO-CaF2Fluxing agent is added to Ti-Al systems alloy
In further promoted so as to deoxygenation, if but as described above, CaO-CaF2The fusing point of fluxing agent is the molten of Ti-Al systems alloy
It is that then deoxygenation is not promoted about below 1800K to solve temperature.By fluxing agent addition so that the reasons why deoxygenation is promoted
It is, by deoxygenation and the Al that generates2O3Absorbed in fluxing agent, 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).
Embodying the Al/Al of this deoxygenation2O3Under equilibrium state, the K of formula (2) is certain, but the aAl based on deoxygenation does not almost have
Change, if therefore the aAl in following formula (2)2O3Reduce (infinite approach zero if being absorbed in fluxing agent), therewith
PO in formula (2)2(oxygen concentration) also reduces.
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 fluxing agent is less than 35 mass %, CaO-CaF2Fluxing agent
Fusing point is more than 1800K, it is impossible to obtains addition CaO-CaF2The facilitation for the deoxygenation that fluxing agent is brought.On the other hand, if
More than 95 mass % pollution caused by fluorine then occurs for the use level of calcirm-fluoride.Therefore, in the present invention, add and match somebody with somebody in calcium oxide
The CaO-CaF of the calcirm-fluoride of 35~95 mass % is closed2Fluxing agent.The CaO-CaF2The more preferably cooperation of the calcirm-fluoride of fluxing agent
Measure as 60~90 mass %.It should be noted that CaO-CaF2The additive amount of fluxing agent is quality 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 (not reducing substantially), the method that reduces oxygen content, but the content for Al, the Ti that can substantially allow
Reduced rate is less than 5.0%.That is, substantially represent less than 5.0%.
Embodiment
Hereinafter, enumerate embodiment and further illustrate the present invention, but the present invention limits from following embodiments originally, also may be used
Implemented with suitably being changed in the range of it can meet the purport of the present invention, these are all contained in the technology model of the present invention
In enclosing.
(relation of the Al content in Ti-Al systems alloy and the oxygen content after melting)
Plasma-arc melts method, fluxless addition
Melt, keep thereafter, so as to implement use by titanium by using using the 100kW plasma arc furnaces of water cooling copper container
The deoxidation of Ti-Al systems alloy that the alloy material that material and aluminum are formed is made, that oxygen content is 0.8 mass %.For
The influence that the Al content of research Ti-Al systems alloy brings deoxygenation caused by melting, has 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 to 100g, Ar is used only in plasma gas, and the pressure in melting is 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.
As can be seen from FIG. 1, the oxygen content after the melting of Ti-Al systems alloy of the Al content untill 10~30 mass % exists
Do not change before and after 0.8 mass %, but for Al content be more than 40 mass % Ti-Al systems alloy for melt after oxygen content
Reduce.From the result, the Al content of Ti-Al systems alloy if more than 40 mass %, then by melting and deoxygenation into
OK.
Plasma-arc melts method, has fluxing agent addition
In addition, in above-mentioned experiment melt after oxygen content reduce, Al content for 30 mass %, 40 mass %, 60 matter
The Ti-Al systems alloy of % is measured, in order to study addition CaO-CaF2The situation of the promotion for the deoxygenation that fluxing agent is brought, except adding
Add CaO-CaF2Beyond fluxing agent, it is set to and does not add identical condition during fluxing agent, implement based on plasma-arc
The deoxidation of the Ti-Al alloys of melting.It should be noted that CaO-CaF2The use level of calcirm-fluoride in fluxing agent is set to 80 matter
Measure %, CaO-CaF2The additive amount of fluxing agent is set to 5g.Show the result in Fig. 1.
As can be seen from FIG. 1, in addition CaO-CaF2In the case of fluxing agent, Al content is 40 mass %, 60 mass %
Under either case, all with not adding CaO-CaF2The situation of fluxing agent is compared, and further promotes deoxidation.In addition, after for melting
Ti-Al alloys in oxygen content (mass ratio, following oxygen content are all represented with mass ratio.) for, it is 40 matter in Al content
In the case of measuring %, CaO-CaF is not added2It is 5400ppm during fluxing agent, adds CaO-CaF2It is 2400ppm during fluxing agent, separately
Outside, in the case that Al content is 60 mass %, CaO-CaF is not added2It is 280ppm during fluxing agent, adds CaO-CaF2Fluxing agent
When be 220ppm.
Situation using titania meterial as titanium material
In addition, separately being melted by using using the 100kW plasma arc furnaces of water cooling copper container, keep thereafter, so that real
Apply the Ti-Al that be made using the alloy material being made of titania meterial and aluminum, oxygen content is 16.3 mass %
It is the deoxidation of alloy.At this time, the Al content of Ti-Al systems alloy is set to 60 mass %, implements addition CaO-CaF2Fluxing agent
Both situation and situation about not adding.It should be noted that Ar is used only in plasma gas, the pressure in melting is set to 1.20
×105Pa, CaO-CaF2The use level of calcirm-fluoride in fluxing agent is set to 80 mass %, CaO-CaF2The additive amount of fluxing agent is set
For 5g.
Melted, keep after Ti-Al systems alloy in oxygen content do not adding CaO-CaF2In the case of fluxing agent
For 540ppm or so, even titanium oxide is used for 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 fluxing agent, oxygen content in Ti-Al systems alloy is 330ppm or so, energy
Addition fluxing agent is enough identified through, further plays deoxidation effect.
Induction melting method, fluxless addition
In addition, method is melted instead of plasma-arc, using the induction melting method using water cooling copper container, with above-mentioned plasma
Electric arc, which melts method, similarly to be implemented to test from the deoxidation for the Ti-Al systems alloy that oxygen content is 0.8 mass %.In order to study Ti-Al
It is the influence that the Al content of alloy brings deoxygenation, distinguishes melting Al content for 37 mass %, 39 mass %, 51 matter
Measure the Ti-Al systems alloy of %.It should be noted that in each melting, meltage is set to 20kg, melts intracavitary atmosphere and is set to Ar, melts
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
The data that degree (Al content) melts the situation of method with the relation of oxygen concentration (oxygen content) and using plasma-arc are shown in the lump
Fig. 1.
As can be seen from FIG. 1, it is same with melting the situation of method using plasma-arc, it is attached more than 40 mass % from Al content
Near to start, the oxygen content after melting reduces.From the result, also melted in the case of induction melting method with plasma-arc
Method is same, is carried out if the Al content of Ti-Al systems alloy is changed into more than 40 mass % by melting and deoxygenation.
Induction melting method, have fluxing agent addition
In addition, it is 40 mass % for Al content, the Ti-Al systems alloy of 48 mass %, 59 mass %, in order to study addition
CaO-CaF2The promotion situation for the deoxygenation that fluxing agent is brought, implements based on the induction melting method using water cooling copper container
The deoxidation of Ti-Al alloys.It should be noted that in each melting, melt intracavitary atmosphere and be set to Ar, the pressure in melting is set to 7.0
×104Pa, CaO-CaF2The use level of calcirm-fluoride in fluxing agent is set to 80 mass %, CaO-CaF2The additive amount of fluxing agent is set
For the 10% of metal quality.Show the result in Fig. 1.
As can be seen from FIG. 1, in the case of using the induction melting method using water cooling copper container, CaO-CaF is not being added2Help
In the case of flux, Al content is 40 mass %, under the either case of 48 mass %, 59 mass %, all with not adding CaO-
CaF2Compared in the case of fluxing agent, further promote deoxidation.
(CaO-CaF2The use level of calcirm-fluoride in fluxing agent)
Ti-Al alloys using Al content for 40 mass %, change the CaO-CaF of addition2The calcirm-fluoride of fluxing agent is matched somebody with somebody
Resultant, afterwards all with the above embodiments under the same conditions, 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-CaF2Fluxing agent is paved with the Ti-Al before melting and closes in advance
Around gold.Show the result in Fig. 2.
Not add CaO-CaF2On the basis of oxygen content, that is, 5400ppm after melting in the case of fluxing agent, it have studied
Add CaO-CaF2The degree for the deoxygenation facilitation effect that fluxing agent is brought.As can be seen from FIG. 2, add and coordinate in calcium oxide
The CaO-CaF of 60~90 mass % of calcirm-fluoride2Most significant deoxygenation facilitation effect has been obtained during fluxing agent, but has been coordinated
Also there is big deoxygenation facilitation effect during more than 40 mass %.By the results showed that by adding in calcium oxide
The CaO-CaF of the calcirm-fluoride of 35~95 mass % is coordinated2Fluxing agent can obtain deoxidation effect.It should be noted that according to
Fig. 2 is understood, adds the CaO-CaF for having coordinated 30 mass % of calcirm-fluoride in calcium oxide2In the case of fluxing agent, deoxidation is not promoted
Into.This is because, CaO-CaF2The fusing point of fluxing agent is excessive and does not melt.
(change for melting the quality and Al content of front and rear Ti-Al systems alloy)
By studying the change of the quality and Al content that melt front and rear above-mentioned each sample, have rated Ti-Al systems alloy
Finished material rate caused by volatilization when being melted using 100kW plasma arc furnaces.At this time, Ar is used only in plasma gas,
Pressure in melting is set to 1.20 × 105Pa。
First, the relation of the mass change of the sample before and after melting the time and melting is shown in Fig. 3.As can be seen from FIG. 3,
The quality of sample does not change substantially before and after melting.Then, by the Al concentration (content) of sample with melting front and rear sample
The relation of mass change is shown in Fig. 4.As can be seen from FIG. 4, the quality of sample does not change substantially before and after melting, and Al is without because making
Volatilized with the melting of 100kW plasma arc furnaces.As knowen from these results, an example as the melting using water cooling copper container
The melting using plasma arc furnace in, in the melting of Ti-Al systems alloy, Al and Ti as alloying element are not
Volatilization.
In detail the present invention is illustrated with reference to specific embodiment, but to those skilled in the art obviously can be with
It is subject to various changes, modification 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) filed in months 4 days, Japanese patent application filed in 16 days January in 2015
Japanese patent application (Japanese Patent Application 2015-6765) filed in (Japanese Patent Application 2015-6764), 16 days January in 2015,2015 years
Japanese patent application (Japanese Patent Application 2015-131029) filed in June 30, its content are 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 for belonging to former material is useful.
Claims (3)
- A kind of 1. method of deoxidation of Ti-Al systems alloy, it is characterised in thatIt will be made using the alloy material of oxygen containing more than 0.1 mass % be made of titanium material and aluminum, total , the Ti-Al systems alloy of Al containing more than 40 mass % under the atmosphere of more than 10Pa, by using the molten of water cooling copper container Solution is melted and kept,Thus the oxygen content of Ti-Al systems alloy is made reduce.
- 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, the fluorination for having coordinated 35~95 mass % in calcium oxide is added The CaO-CaF of calcium2Fluxing agent.
- 3. the method for deoxidation of Ti-Al systems according to claim 1 or 2 alloy, wherein,The melting method using water cooling copper container melts method for electric arc, plasma-arc melts appointing in 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 CN106661670A (en) | 2017-05-10 |
| CN106661670B true CN106661670B (en) | 2018-05-04 |
Family
ID=56512486
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) |
Families Citing this family (4)
| 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 |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711039B2 (en) * | 1990-08-24 | 1995-02-08 | 京都大学長 | Intermetallic compound Al (3) Ti manufacturing method |
| 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 |
| JP2989053B2 (en) * | 1991-08-30 | 1999-12-13 | 株式会社神戸製鋼所 | Method for producing low oxygen Ti-Al alloy and low oxygen Ti-Al alloy |
| JP2989060B2 (en) * | 1991-11-15 | 1999-12-13 | 株式会社神戸製鋼所 | Low oxygen Ti-Al alloy and method for producing the same |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2673589C2 (en) | 2018-11-28 |
| 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 |
| CN106661670A (en) | 2017-05-10 |
| EP3190196A4 (en) | 2018-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106661670B (en) | The method of deoxidation of Ti-Al systems alloy | |
| JP4280539B2 (en) | Method for producing titanium alloy | |
| CN109047783A (en) | A kind of Al alloy powder and preparation method thereof | |
| RU2012105311A (en) | METHOD FOR PRODUCING AN ALLOY INGOT | |
| EP2712941B1 (en) | Alloy manufacturing method and alloy manufactured by means of same | |
| CN104233024A (en) | High-strength two-phase ultralight magnesium lithium alloy and preparation method thereof | |
| CN101623800B (en) | Magnesium-based brazing filler metal alloy and preparation method thereof | |
| CN103459063A (en) | Titanium slab for hot rolling and process for producing same | |
| CN103394826B (en) | A kind of process reducing extruded rod defect | |
| TWI518183B (en) | Corrosion resistant high nickel alloy and its manufacturing method | |
| WO2016035824A1 (en) | METHOD FOR DEOXIDIZING Ti-Al ALLOY | |
| CN105018789A (en) | Casting titanium alloy and preparation method thereof | |
| CN107312908A (en) | Improve the metallurgical method of MnS inclusion morphologies in a kind of non-hardened and tempered steel | |
| CN104233031A (en) | Microalloying AZ91 magnesium alloy with high strength and proper solderability and preparation method thereof | |
| JP6513530B2 (en) | Deoxidation method of Ti-Si alloy | |
| JP6982795B2 (en) | Manufacturing method of boron-containing stainless steel | |
| EP2374905B1 (en) | Manufacturing method of magnesium based alloy for high temperature | |
| CN112853129A (en) | Short-process preparation method of aluminum-titanium-containing alloy | |
| JP6544638B2 (en) | Method of manufacturing Ti-containing maraging steel and method of manufacturing preform thereof | |
| CN107148484B (en) | The method of deoxidation of Al-Nb-Ti system alloy | |
| KR101448597B1 (en) | High alloy steel and method for manufacturing the same | |
| CN106801205A (en) | A kind of enhanced bearing steel of tensile strength | |
| KR102378522B1 (en) | Aluminium alloy and method for manufacturing the same | |
| US11319614B2 (en) | Method for deoxidizing Al—Nb—Ti alloy | |
| CN114015926A (en) | Preparation method of high-V high-speed steel and high-V high-speed steel |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |