CN108588454A - A kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy and preparation method thereof - Google Patents
A kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy and preparation method thereof Download PDFInfo
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- CN108588454A CN108588454A CN201810626954.1A CN201810626954A CN108588454A CN 108588454 A CN108588454 A CN 108588454A CN 201810626954 A CN201810626954 A CN 201810626954A CN 108588454 A CN108588454 A CN 108588454A
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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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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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
- C22C1/10—Alloys containing non-metals
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- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
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Abstract
A kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy of present invention offer and preparation method thereof.Vanadium aluminium molybdenum ferro-niobium intermediate alloy provided by the invention includes the Al of the Fe of the Nb of the Mo of the V of 30~36wt%, 20~24wt%, 9~13wt%, 5~7wt% and surplus based on mass content.Vanadium aluminium molybdenum ferro-niobium intermediate alloy provided by the invention is by designing alloying component, make vanadium aluminium molybdenum ferro-niobium intermediate alloy fusing point and density all close to matrix sponge titanium, and component segregation is smaller, when being used for TC27 titanium alloy smeltings instead of AlMo60, AlV85, AlNb70 and metal Fe, can reduce with the fusing point of matrix sponge titanium difference and density contrast, be effectively prevented the generation of component segregation.The experimental results showed that vanadium aluminium molybdenum ferro-niobium intermediate alloy fusing point provided by the invention is 1670~1680 DEG C, density is 4.95~5.01g/cm3, component segregation is smaller.Preparation method provided by the invention is simple, easily controllable, is suitable for large-scale industrial production.
Description
Technical field
The present invention relates to technical field of metal material, are related to intermediate alloy, especially a kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy
And preparation method thereof.
Background technology
TC27 titanium alloys are a kind of alpha+beta two-phase titaniums for novel high-strength/tenacity high-hardenability that China has independent intellectual property right
Alloy, nominal composition Ti-5Al-4Mo-6V-2Nb-1Fe, it has, and specific strength is high, fracture toughness is high, formability is good and anti-
The advantages that stress corrosion ability is strong belongs to damage tolerance Type Titanium Alloy, can be widely applied for the fields such as Aeronautics and Astronautics, military project
Important load component.The alloy can be refined well in certain heat processing technique undertissue, good to obtain
Strengthen effect and tough matching.
Raw material currently used for the production of TC27 titanium alloys are in addition to matrix sponge titanium (fusing point：1675 DEG C, density：4.50g/
cm3) except, further include AlMo60 (fusing points：1570 DEG C, density：4.97g/cm3), AlV85 (fusing points：1890 DEG C, density：
5.14g/cm3), AlNb70 (fusing points：1630 DEG C, density：5.19g/cm3) three kinds of binary intermediate alloy and metal Fe (fusing points：
1535 DEG C, density：7.87g/cm3), maximum fusing point difference and density contrast are respectively 355 DEG C and 3.37g/ between this five kinds of raw material
cm3.The mode of TC27 titanium alloy generally use VAR (vacuum consumable arc-melting) carries out melting, and this method belongs to consecutive solidification
Process, big fusing point difference and density contrast can cause the serious component segregation problem of TC27 titanium alloys.
Invention content
The purpose of the present invention is to provide a kind of vanadium aluminium molybdenum ferro-niobium intermediate alloys and preparation method thereof.Vanadium provided by the invention
Aluminium molybdenum ferro-niobium intermediate alloy (fusing point：1670~1680 DEG C, density：4.95~5.01g/cm3) and matrix sponge titanium (fusing point：
1675 DEG C, density：4.50g/cm3) fusing point and density it is close, when being used for TC27 titanium alloy smeltings, can be good at solving
Component segregation problem.
The present invention provides a kind of vanadium aluminium molybdenum ferro-niobium intermediate alloys, based on mass content, including the V of 30~36wt%, 20
The Al of the Mo of~24wt%, the Nb of 9~13wt%, the Fe of 5~7wt% and surplus.
Preferably, the vanadium aluminium molybdenum ferro-niobium intermediate alloy include the V of 32~34wt%, the Mo of 21~23wt%, 10~
The Al of the Nb of 12wt%, the Fe of 5~7wt% and surplus.
Preferably, the vanadium aluminium molybdenum ferro-niobium intermediate alloy fusing point is 1673~1677 DEG C.
Preferably, the vanadium aluminium molybdenum ferro-niobium intermediate alloy density is 4.97~4.99g/cm3。
The present invention also provides a kind of preparation methods of above-mentioned vanadium aluminium molybdenum ferro-niobium intermediate alloy, it is characterised in that：Including with
Lower step：
(1) by Al, V2O5、MoO3、Fe2O3And Nb2O5It is dried；
(2) step (1) is according to 100 parts of Al, 73~83 parts of V2O5, 39~45 parts of MoO3, 8~12 parts of Fe2O3, 18~24
Part Nb2O5Weigh each raw material；
(3) each raw material that the step (2) weighs up are sufficiently mixed, obtain mixed material；
(4) by the mixed material shove charge at normal temperatures of the step (3), alloy smelting is carried out using aluminothermy smelting outside stove
Refining, obtains vanadium aluminium molybdenum ferro-niobium intermediate alloy.
Preferably, the preparation method of the vanadium aluminium molybdenum ferro-niobium intermediate alloy, according to 100 parts of Al, 76~80 parts of V2O5, 41~
43 parts of MoO3, 9~11 parts of Fe2O3, 20~22 parts of Nb2O5Weigh each raw material.
The advantages of the present invention：
Vanadium aluminium molybdenum ferro-niobium intermediate alloy provided by the invention makes vanadium aluminium molybdenum ferro-niobium intermediate alloy by designing alloying component
Fusing point and density are all close to matrix sponge titanium, and component segregation is smaller, are used instead of AlMo60, AlV85, AlNb70 and metal Fe
When TC27 titanium alloy smeltings, can reduce with the fusing point of matrix sponge titanium difference and density contrast, be effectively prevented component segregation
Occur.The experimental results showed that vanadium aluminium molybdenum ferro-niobium intermediate alloy fusing point provided by the invention is 1670~1680 DEG C, density 4.95
~5.01g/cm3, component segregation is smaller.
Specific implementation mode
The present invention provides a kind of vanadium aluminium molybdenum ferro-niobium intermediate alloys, based on mass content, including the V of 30~36wt%, 20
The Al of the Mo of~24wt%, the Nb of 9~13wt%, the Fe of 5~7wt% and surplus.In the present invention, in the vanadium aluminium molybdenum ferro-niobium
Between alloy preferably include the V of 32~34wt%, the Mo of 21~23wt%, the Nb of 10~12wt%, the Fe of 5~7wt% and surplus
Al.In the present invention, the vanadium aluminium molybdenum ferro-niobium intermediate alloy fusing point is preferably 1673~1677 DEG C.In the present invention, described
Vanadium aluminium molybdenum ferro-niobium intermediate alloy density is preferably 4.97~4.99g/cm3.In the present invention, described V, Mo, Nb, Fe and Al match
Than make vanadium aluminium molybdenum ferro-niobium intermediate alloy fusing point and density all close to matrix sponge titanium.
The present invention also provides a kind of preparation methods of above-mentioned vanadium aluminium molybdenum ferro-niobium intermediate alloy, it is characterised in that：It is preferred that wrapping
Include following steps：
(1) by Al, V2O5、MoO3、Fe2O3And Nb2O5It is dried；
(2) step (1) is according to 100 parts of Al, 76~80 parts of V2O5, 41~43 parts of MoO3, 9~11 parts of Fe2O3, 20~22
Part Nb2O5Weigh each raw material；
(3) each raw material that the step (2) weighs up are sufficiently mixed, obtain mixed material；
(4) by the mixed material shove charge at normal temperatures of the step (3), alloy smelting is carried out using aluminothermy smelting outside stove
Refining, obtains vanadium aluminium molybdenum ferro-niobium intermediate alloy.
In the present invention, the purity of the Al is 99.7% or more；The V2O5Purity be 99.8% or more；It is described
MoO3Purity be 99.9% or more；The Fe2O3Purity be 99.4% or more；The Nb2O5Purity be 99.9% or more.
Present invention aluminothermy preferably outside the stove is smelted preceding to Al, V2O5、MoO3、Fe2O3And Nb2O5It is dried.At this
In invention, the temperature of the drying is preferably 110~130 DEG C, more preferably 115~125 DEG C；The time of the drying is preferably
6h or more, more preferably 8~12h, most preferably 9~11h.In the present invention, the drying can remove the moisture in raw material,
It prevents that serious splash occurs in aluminothermy smelting process.
In order to further illustrate the present invention, with reference to embodiment to vanadium aluminium molybdenum ferro-niobium intermediate alloy provided by the invention and
Preparation method is described in detail, but cannot they be interpreted as limiting the scope of the present invention.
Embodiment 1:
1, the V for being 99.8% or more by Al that purity is 99.7% or more, purity2O5, purity be 99.9% or more
MoO3, purity be 99.4% or more Fe2O3The Nb for being 99.9% or more with purity2O5It is dried, dry temperature is 110
DEG C, the dry time is 6h.
2, subsequently according to 100 parts of Al, 73 parts of V2O5, 39 parts of MoO3, 8 parts of Fe2O3, 18 parts of Nb2O5Weigh each raw material.
3, each raw material weighed up are sufficiently mixed, obtain mixed material.
4, by mixed material shove charge at normal temperatures, alloy smelting is carried out using aluminothermy smelting outside stove, obtains vanadium aluminium molybdenum niobium
Iron intermediate alloy.
Chemical composition analysis is carried out to vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment, obtains that the results are shown in Table 1.
The fusing point of vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment is 1671 DEG C, density 4.95g/cm3。
Embodiment 2:
1, the V for being 99.8% or more by Al that purity is 99.7% or more, purity2O5, purity be 99.9% or more
MoO3, purity be 99.4% or more Fe2O3The Nb for being 99.9% or more with purity2O5It is dried, dry temperature is 130
DEG C, the dry time is 12h.
2, subsequently according to 100 parts of Al, 83 parts of V2O5, 45 parts of MoO3, 12 parts of Fe2O3, 24 parts of Nb2O5Weigh each raw material.
3, each raw material weighed up are sufficiently mixed, obtain mixed material.
4, by mixed material shove charge at normal temperatures, alloy smelting is carried out using aluminothermy smelting outside stove, obtains vanadium aluminium molybdenum niobium
Iron intermediate alloy.
Chemical composition analysis is carried out to vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment, obtains that the results are shown in Table 1.
The fusing point of vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment is 1679 DEG C, density 5.00g/cm3。
Embodiment 3:
1, the V for being 99.8% or more by Al that purity is 99.7% or more, purity2O5, purity be 99.9% or more
MoO3, purity be 99.4% or more Fe2O3The Nb for being 99.9% or more with purity2O5It is dried, dry temperature is 120
DEG C, the dry time is 10h.
2, subsequently according to 100 parts of Al, 78 parts of V2O5, 42 parts of MoO3, 10 parts of Fe2O3, 21 parts of Nb2O5Weigh each raw material.
3, each raw material weighed up are sufficiently mixed, obtain mixed material.
4, by mixed material shove charge at normal temperatures, alloy smelting is carried out using aluminothermy smelting outside stove, obtains vanadium aluminium molybdenum niobium
Iron intermediate alloy.
Chemical composition analysis is carried out to vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment, obtains that the results are shown in Table 1.
The fusing point of vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment is 1675 DEG C, density 4.98g/cm3。
Embodiment 4:
1, the V for being 99.8% or more by Al that purity is 99.7% or more, purity2O5, purity be 99.9% or more
MoO3, purity be 99.4% or more Fe2O3The Nb for being 99.9% or more with purity2O5It is dried, dry temperature is 115
DEG C, the dry time is 11h.
2, subsequently according to 100 parts of Al, 76 parts of V2O5, 43 parts of MoO3, 9 parts of Fe2O3, 20 parts of Nb2O5Weigh each raw material.
3, each raw material weighed up are sufficiently mixed, obtain mixed material.
4, by mixed material shove charge at normal temperatures, alloy smelting is carried out using aluminothermy smelting outside stove, obtains vanadium aluminium molybdenum niobium
Iron intermediate alloy.
Chemical composition analysis is carried out to vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment, obtains that the results are shown in Table 1.
The fusing point of vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment is 1674 DEG C, density 4.97g/cm3。
Embodiment 5:
1, the V for being 99.8% or more by Al that purity is 99.7% or more, purity2O5, purity be 99.9% or more
MoO3, purity be 99.4% or more Fe2O3The Nb for being 99.9% or more with purity2O5It is dried, dry temperature is 120
DEG C, the dry time is 9h.
2, subsequently according to 100 parts of Al, 80 parts of V2O5, 41 parts of MoO3, 11 parts of Fe2O3, 22 parts of Nb2O5Weigh each raw material.
3, each raw material weighed up are sufficiently mixed, obtain mixed material.
4, by mixed material shove charge at normal temperatures, alloy smelting is carried out using aluminothermy smelting outside stove, obtains vanadium aluminium molybdenum niobium
Iron intermediate alloy.
Chemical composition analysis is carried out to vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment, obtains that the results are shown in Table 1.
The fusing point of vanadium aluminium molybdenum ferro-niobium intermediate alloy manufactured in the present embodiment is 1677 DEG C, density 4.99g/cm3。
Vanadium aluminium molybdenum ferro-niobium master alloy chemistries wt% in 1 embodiment of the present invention of table
As can be seen from the above embodiments, vanadium aluminium molybdenum ferro-niobium intermediate alloy stable components provided by the invention, impurity content
It is relatively low.
The above is only a preferred embodiment of the present invention, it is not intended to limit the present invention in any form.It should
It points out, for those skilled in the art, without departing from the principle of the present invention, if can also make
Dry improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy, based on mass content, including the Mo of the V of 30~36wt%, 20~24wt%, 9
The Al of the Nb of~13wt%, the Fe of 5~7wt% and surplus.
2. vanadium aluminium molybdenum ferro-niobium intermediate alloy according to claim 1, it is characterised in that：The vanadium aluminium molybdenum ferro-niobium intermediate alloy
Fusing point is 1670~1680 DEG C.
3. vanadium aluminium molybdenum ferro-niobium intermediate alloy according to claim 1, it is characterised in that：The vanadium aluminium molybdenum ferro-niobium intermediate alloy
Density is 4.95~5.01g/cm3。
4. vanadium aluminium molybdenum ferro-niobium intermediate alloy according to claim 1, it is characterised in that：V including 32~34wt%, 21~
The Al of the Mo of 23wt%, the Nb of 10~12wt%, the Fe of 5~7wt% and surplus.
5. the preparation method of the vanadium aluminium molybdenum ferro-niobium intermediate alloy according to Claims 1 to 4 any claim, feature exist
In：According to 100 parts of Al, 73~83 parts of V2O5, 39~45 parts of MoO3, 8~12 parts of Fe2O3, 18~24 parts of Nb2O5Weigh each former material
Material carries out the outer aluminothermy of stove and smelts, obtains vanadium aluminium molybdenum ferro-niobium intermediate alloy.
6. preparation method according to claim 5, it is characterised in that：The purity of the Al is 99.7% or more；The V2O5
Purity be 99.8% or more；The MoO3Purity be 99.9% or more；The Fe2O3Purity be 99.4% or more；It is described
Nb2O5Purity be 99.9% or more.
7. preparation method according to claim 5, it is characterised in that：The outer aluminothermy smelting of the stove includes the following steps：
(1) by Al, V2O5、MoO3、Fe2O3And Nb2O5It is dried；
(2) by the step (1) according to 100 parts of Al, 73~83 parts of V2O5, 39~45 parts of MoO3, 8~12 parts of Fe2O3, 18~24 parts
Nb2O5Weigh each raw material；
(3) each raw material that the step (2) weighs up are sufficiently mixed, obtain mixed material；
(4) by the mixed material shove charge at normal temperatures of the step (3), alloy smelting is carried out using aluminothermy smelting outside stove, is obtained
To vanadium aluminium molybdenum ferro-niobium intermediate alloy.
8. preparation method according to claim 7, it is characterised in that：In the step (1) dry temperature be 110~
130℃；The time of the drying is 6h or more.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226641A (en) * | 2020-10-21 | 2021-01-15 | 威海职业学院 | Molybdenum niobium silicon aluminum carbon intermediate alloy and preparation method thereof |
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| CN112226641A (en) * | 2020-10-21 | 2021-01-15 | 威海职业学院 | Molybdenum niobium silicon aluminum carbon intermediate alloy and preparation method thereof |
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