CN103834844B - A kind of V, Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof - Google Patents
A kind of V, Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof Download PDFInfo
- Publication number
- CN103834844B CN103834844B CN201410090686.8A CN201410090686A CN103834844B CN 103834844 B CN103834844 B CN 103834844B CN 201410090686 A CN201410090686 A CN 201410090686A CN 103834844 B CN103834844 B CN 103834844B
- Authority
- CN
- China
- Prior art keywords
- alloy
- aluminum
- alloying
- phase
- copper crucible
- 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.)
- Expired - Fee Related
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 89
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 82
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 46
- 229910010038 TiAl Inorganic materials 0.000 title claims abstract description 41
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 31
- 238000005275 alloying Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000011572 manganese Substances 0.000 claims abstract description 50
- 239000010955 niobium Substances 0.000 claims abstract description 36
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 25
- 230000008018 melting Effects 0.000 claims abstract description 25
- 230000006698 induction Effects 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 15
- QNTVPKHKFIYODU-UHFFFAOYSA-N aluminum niobium Chemical compound [Al].[Nb] QNTVPKHKFIYODU-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 14
- HIMLGVIQSDVUJQ-UHFFFAOYSA-N aluminum vanadium Chemical compound [Al].[V] HIMLGVIQSDVUJQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 241000446313 Lamella Species 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 238000009750 centrifugal casting Methods 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000003475 lamination Methods 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 239000004484 Briquette Substances 0.000 claims description 6
- -1 rafifinal Chemical compound 0.000 claims description 6
- VYMDGNCVAMGZFE-UHFFFAOYSA-N phenylbutazonum Chemical compound O=C1C(CCCC)C(=O)N(C=2C=CC=CC=2)N1C1=CC=CC=C1 VYMDGNCVAMGZFE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 238000005204 segregation Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 15
- 244000137852 Petrea volubilis Species 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000010892 electric spark Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004626 scanning electron microscopy Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005088 metallography Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Abstract
A kind of V, Mn alloying β phase solidifies high Nb TiAl alloy and preparation method thereof, belongs to technical field of alloy.The molar content of element is: the Nb of Al, 5～15% of 43%～45%, the V of not higher than 0.5%, the Mn and the Ti of surplus of not higher than 1.0% and inevitable impurity.According to composition by raw material by compound stalk forming, titanium sponge being placed in during briquetting die inside edge, high-purity aluminium lamination, aluminum niobium intermediate alloy layer, electrolytic manganese lamella, aluminum vanadium intermediate alloy layer and sponge titanium layer are placed in layering the most from bottom to top.Being put into by briquetting can be in the water jacketed copper crucible vacuum induction suspension smelting furnace of centrifugal casting, and evacuation melting obtains melt, makes melt mixed uniform；It is cast to melt in the most preheated and metal mold mould of centrifugal rotation be centrifuged rotated mold filing, and furnace cooling.The present invention has obtained that even tissue is tiny and TiAl alloy without obvious segregation.
Description
Technical field
The present invention relates to a kind of high Nb containing TiAl based alloy and preparation technology thereof, particularly relate to a kind of V,
Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof, belongs to alloy technology neck
Territory.
Background technology
TiAl alloy due to its low-density, low-expansion coefficient, high specific strength, high elastic modulus with
And the preferably advantage such as high temperature and creep resistance antioxygenic property it is considered to be have application prospect very much
Lightening fire resistant structural material, can be applicable to the field such as Aeronautics and Astronautics and automobile.But,
TiAl alloy temperature-room type plasticity is low and the shortcoming such as hot-working character difference limits it and extensively applies.Science
Worker by the result of grinding in a large number in terms of the tissue of TiAl alloy, plasticity and deformation is shown,
β phase solidifies mechanical property and the hot-working character that can be effectively improved TiAl alloy.Along with
TiAl alloy develops towards temperature high performance high direction, and Nb element becomes in TiAl alloy very
Important a kind of addition element, it can improve intensity and the high-temperature oxidation resistance of TiAl alloy
Energy.Existing research is only the high Nb containing TiAl based alloy concentrating on single interpolation β phase stable element,
And solidify the preparation of high Nb containing TiAl based alloy material and polynary β phase about multi-element alloyed β phase
There is not been reported in stable element V and Mn Physical Metallurgy behavior in high Nb containing TiAl based alloy.
Summary of the invention
It is an object of the invention to provide a kind of by adding polynary β during alloy melting
Phase stable element V and Mn makes alloy graining route be transformed into by traditional peritectic reaction solidification
β phase solidifies, and then V, Mn alloying β phase improving alloy material structure property solidifies height
Nb-TiAl alloy material and preparation method thereof.
V, Mn alloying β phase of the present invention solidifies high Nb containing TiAl based alloy material, its feature
Being, the molar content of its element is: 43～the Al of 45%, 5～15%(preferably 8%)
Nb, the V of not higher than 0.5%, the Mn and the Ti of surplus of not higher than 1% and inevitable
Impurity.
V, Mn alloying β phase of the present invention solidifies the preparation method of high Nb containing TiAl based alloy,
Realized by following step:
(1), following raw material is weighed: in titanium sponge, rafifinal, aluminum niobium intermediate alloy, aluminum vanadium
Between alloy and electrolytic manganese sheet；Wherein control moles the hundred of Al, Nb, V, Mn and Ti element
Point content is the Nb of Al, 5～15% of 43%～45%, the V of not higher than 0.5%, not higher than
The Mn of 1% and surplus are Ti and inevitable impurity；
(2), the raw material that step (1) claims is carried out compound stalk forming by metallic briquette machine,
First titanium sponge is placed in during briquetting mould surrounding inside edge, the region then surrounded at titanium sponge
The most each layer in inside is respectively high-purity aluminium lamination, aluminum niobium intermediate alloy layer, aluminum vanadium intermediate alloy
Layer, electrolytic manganese lamella and sponge titanium layer；
(3) briquetting that step (2) obtains is put into can the water jacketed copper crucible of centrifugal casting true
In empty induction suspending smelting furnace, before melting, metal mold mould is preheated to 300～350 DEG C, water
Cold copper crucible vacuum induction melting furnace is evacuated to 1.0～3.0 × 10-3Mbar, with
20～30kw/min(preferred 20kw/min) rate of rise is by water jacketed copper crucible vacuum induction melting
Stove monitor system stops increasing power after rising to 160～170kw, then molten under firm power
Refining 200～250s obtains melt, makes melt mixed uniform；
(4) melt in step (3) is cast to the most preheated and gold of centrifugal rotation
Belonging in mold die, centrifuge speed is preferably 120r/min, forms V, Mn alloying β
Solidification high Nb containing TiAl based alloy ingot casting, and furnace cooling mutually.
In step of the present invention (1), the quality purity of titanium sponge is 99.78%, the quality of rafifinal
Purity is 99.99%, and the quality purity of aluminum niobium intermediate alloy is 99.86%, the matter of electrolytic manganese sheet
Amount purity is 99.99%, and the quality purity of aluminum vanadium intermediate alloy is 99.6%；Each raw material is city
Sell product.
Present invention determine that the optimal addn scope of V and Mn, in Material Coagulating Process,
The addition of V and Mn changes the solidification route of alloy, traditional L → L+ β → α →... become
For L → L+ β → β →..., the high Nb containing TiAl based alloy microscopic structure obtained is the most tiny, and nothing
Substantially segregation occurs, the β phase of formation mainly appears on lamella colony grain boundaries and in netted point
Cloth.Fine uniform, without obvious segregation tissue be conducive to alloy hot-workability, improve alloy
Combination property.
The present invention obtained uniform tiny and without obvious segregation TiAl alloy tissue, and adopt
With water jacketed copper crucible vacuum induction suspension smelting furnace melting and carry out centrifugal casting, technical process letter
Single easily operation.
Accompanying drawing explanation
V, Mn alloying β phase of Fig. 1 embodiment 1 solidifies high Nb containing TiAl based alloy
Ti-45Al-8Nb-0.5V-1.0Mn cast alloy optical microstructure figure；
V, Mn alloying β phase of Fig. 2 embodiment 1 solidifies high Nb containing TiAl based alloy
Ti-45Al-8Nb-0.5V-1.0Mn cast alloy X-ray diffraction spectrogram；
V, Mn alloying β phase of Fig. 3 embodiment 1 solidifies high Nb containing TiAl based alloy
Ti-45Al-8Nb-0.5V-1.0Mn cast alloy scanning electron microscopy；
V, Mn alloying β phase of Fig. 4 embodiment 2 solidifies high Nb containing TiAl based alloy
Ti-43Al-8Nb-0.1V-0.1Mn cast alloy optical microstructure figure；
V, Mn alloying β phase of Fig. 5 embodiment 2 solidifies high Nb containing TiAl based alloy
Ti-43Al-8Nb-0.1V-0.1Mn cast alloy X-ray diffraction spectrogram；
V, Mn alloying β phase of Fig. 6 embodiment 2 solidifies high Nb containing TiAl based alloy
Ti-43Al-8Nb-0.1V-0.1Mn cast alloy scanning electron microscopy；
V, Mn alloying β phase of Fig. 7 embodiment 3 solidifies high Nb containing TiAl based alloy
Ti-44Al-8Nb-0.5V-0.35Mn cast alloy optical microstructure figure；
V, Mn alloying β phase of Fig. 8 embodiment 3 solidifies high Nb containing TiAl based alloy
Ti-44Al-8Nb-0.5V-0.35Mn cast alloy X-ray diffraction spectrogram；
V, Mn alloying β phase of Fig. 9 embodiment 3 solidifies high Nb containing TiAl based alloy
Ti-44Al-8Nb-0.5V-0.35Mn cast alloy scanning electron microscopy.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described, but the present invention is not limited to following
Embodiment.The capacity of following vacuum induction suspension smelting furnace is 5 kilograms.
Embodiment 1
V, Mn alloying β phase of the present embodiment solidify high Nb containing TiAl based alloy preparation by under
State step realize: one, weigh following raw material: titanium sponge, rafifinal, aluminum niobium intermediate alloy,
Electrolytic manganese sheet and aluminum vanadium intermediate alloy, wherein Ti46at.%, Al45at.%, Nb8at.%, V
0.5at.%、Mn1.0at.%；Two, raw material step one claimed is carried out by metallic briquette machine
Compound stalk forming, is first placed in titanium sponge die inside edge, then surrounds at titanium sponge during briquetting
Intra-zone portion from bottom to top be layered placement high-purity aluminium lamination, aluminum niobium intermediate alloy layer, electrolytic manganese
Lamella, aluminum vanadium intermediate alloy layer and sponge titanium layer；Three, the briquetting that step 2 obtains is put into
Can be in the water jacketed copper crucible vacuum induction suspension smelting furnace of centrifugal casting, by metal mold before melting
It is preheated to 350 DEG C, water jacketed copper crucible vacuum induction melting furnace is evacuated to 3.0 × 10-3mbar；
Four, with 20kw/min rate of rise by water jacketed copper crucible vacuum induction melting furnace monitor system liter
Stopping increasing power to 170kw, then under firm power, melting 220s obtains melt, makes
Melt mixed is uniform；Five, melt is cast to preheating after and in the metal mold of centrifugal rotation,
Centrifuge speed is preferably 120r/min, and cast ingot dimension is φ 60 × 180mm, and furnace cooling,
Obtain Ti-45Al-8Nb-0.5V-1.0Mn alloy cast ingot.
Electric spark wire cutting method is used to cut 15 × 15 × 10mm sample from ingot casting.Metallographic
It is ground to 3000 mesh through abrasive paper for metallograph from 180 mesh with scanned sample, then carries out on polished machine
Mechanical polishing, throws by electropolisher, essence the most again；X-ray diffraction sample through washing sand paper from
180 mesh are ground to 1000 mesh, then clean surface with ultrasonic vibration machine；Transmission sample is 0.5mm
Thick thin slice, is ground to 40um with sand paper thick, then uses double spray thinning technique to prepare.Utilize gold
Phase microscope is observed the microscopic structure of Ti-45Al-8Nb-0.5V-1.0Mn and is found, TiAl alloy
It is organized as tiny equiaxed grain structure, sees Fig. 1；XRD (X-ray diffractometer) is utilized to carry out point
Analysis finds, except α in alloy2Outside γ phase, also β phase occurs, sees Fig. 2；Utilization is swept
Retouching ultramicroscope and electron probe is analyzed finding, white exposes and is mainly distributed on sheet layer crystal
Roll into a ball grain boundaries and in net distribution, see Fig. 3.
Embodiment 2
V, Mn alloying β phase of the present embodiment solidify high Nb containing TiAl based alloy preparation by under
State step realize: one, weigh following raw material: titanium sponge, rafifinal, aluminum niobium intermediate alloy,
Electrolytic manganese sheet and aluminum vanadium intermediate alloy, wherein Ti48.8at.%, Al43at.%, Nb8at.%,
V0.1at%、Mn0.1at.%；Two, raw material step one claimed is entered by metallic briquette machine
Row compound stalk forming, is first placed in titanium sponge die inside edge, then encloses at titanium sponge during briquetting
The intra-zone become is layered placement high-purity aluminium lamination, aluminum niobium intermediate alloy layer, electrolytic manganese from bottom to top
Lamella, aluminum vanadium intermediate alloy layer and sponge titanium layer；Three, the briquetting that step 2 obtains is put into
Can be in the water jacketed copper crucible vacuum induction suspension smelting furnace of centrifugal casting, by metal mold before melting
Mould is preheated to 310 DEG C, water jacketed copper crucible vacuum induction melting furnace is evacuated to 1.2 ×
10-3mbar；Four, with 20kw/min rate of rise, water jacketed copper crucible vacuum induction melting furnace is melted
Downlink power stops increasing power after rising to 160kw, and then under firm power, melting 200s obtains
Melt, makes melt mixed uniform；Five, melt is cast to after preheating and the gold of centrifugal rotation
Belonging in casting mold, centrifuge speed is preferably 120r/min, and cast ingot dimension is φ 60 × 180mm,
And furnace cooling, obtain Ti-43Al-8Nb-0.1V-0.1Mn alloy cast ingot.
Electric spark wire cutting method is used to cut 15 × 15 × 10mm sample, metallographic from ingot casting
It is ground to 3000 mesh through abrasive paper for metallograph from 180 mesh with scanned sample, then throws by electropolisher, essence；
X-ray diffraction sample is ground to 1000 mesh through washing sand paper from 180 mesh, more clear with dehydrated alcohol
Washing surface, transmission sample is the thin slice that 0.5mm is thick, is ground to 40um with sand paper thick, then uses
Prepared by double spray thinning techniques.Utilize metallography microscope sem observation Ti-43Al-8Nb-0.1V-0.1Mn's
Microscopic structure finds, the tissue of TiAl alloy, in tiny equiaxed grain structure, is shown in Fig. 4；Utilize
XRD (X-ray diffractometer) is analyzed finding, except α in alloy2Outside γ phase, also have
β phase occurs, sees Fig. 5；Scanning electron microscope and electron probe is utilized to be analyzed finding,
White exposes and is mainly distributed on lamella colony grain boundaries and in net distribution, sees Fig. 6.
Embodiment 3
V, Mn alloying β phase of the present embodiment solidify high Nb containing TiAl based alloy preparation by under
State step realize: one, weigh following raw material: titanium sponge, rafifinal, aluminum niobium intermediate alloy,
Electrolytic manganese sheet and aluminum vanadium intermediate alloy, wherein Ti47.15at.%, Al44at.%, Nb8at.%,
V0.5at%、Mn0.35at.%；Two, raw material step one claimed is entered by metallic briquette machine
Row compound stalk forming, is first placed in titanium sponge die inside edge, then encloses at titanium sponge during briquetting
The intra-zone become is layered placement high-purity aluminium lamination, aluminum niobium intermediate alloy layer, electrolytic manganese from bottom to top
Lamella, aluminum vanadium intermediate alloy layer and sponge titanium layer；Three, the briquetting that step 2 obtains is put into
Can be in the water jacketed copper crucible vacuum induction suspension smelting furnace of centrifugal casting, by metal mold before melting
Mould is preheated to 330 DEG C, water jacketed copper crucible vacuum induction melting furnace is evacuated to 2.4 ×
10-3mbar；Four, with 20kw/min rate of rise, water jacketed copper crucible vacuum induction melting furnace is melted
Downlink power stops increasing power after rising to 170kw, and then under firm power, melting 240s obtains
Melt, makes melt mixed uniform；Five, melt is cast to after preheating and the gold of centrifugal rotation
Belonging in casting mold, centrifuge speed is preferably 120r/min, and cast ingot dimension is φ 60 × 180mm,
And furnace cooling, obtain Ti-44Al-8Nb-0.5V-0.35Mn compound ingot casting.
Electric spark wire cutting method is used to cut 15 × 15 × 10mm sample, metallographic from ingot casting
It is ground to 3000 mesh through abrasive paper for metallograph from 180 mesh with scanned sample, then throws by electropolisher, essence；
X-ray diffraction sample is ground to 1000 mesh through washing sand paper from 180 mesh, more clear with dehydrated alcohol
Washing surface, transmission sample is the thin slice that 0.5mm is thick, is ground to 40um with sand paper thick, then uses
Prepared by double spray thinning techniques.Utilize metallography microscope sem observation Ti-44Al-8Nb-0.5V-0.35Mn
Microscopic structure find, TiAl alloy tissue in tiny equiaxed grain structure, see Fig. 7；Profit
It is analyzed finding, except α in alloy with XRD (X-ray diffractometer)2Outside γ phase,
Also have β phase to occur, see Fig. 8；Scanning electron microscope and electron probe is utilized to be analyzed sending out
Existing, white exposes and is mainly distributed on lamella colony grain boundaries and in net distribution, sees Fig. 9.
Embodiment 4
(1), following raw material is weighed: titanium sponge, rafifinal, aluminum niobium intermediate alloy, electrolysis chromium
Sheet and electrolytic manganese sheet；The Mole percent wherein controlling Al, Nb, V, Mn and Ti element contains
Amount is Al, the Nb of 8%, 0.1～the Mn of the V of 0.5%, 0.1～1.0% of 43%～45% and remaining
The Ti of amount and impurity；
(2), the raw material that step (1) claims is carried out compound stalk forming by metallic briquette machine,
First titanium sponge is placed in during briquetting die inside edge, the sections bottom then surrounded at titanium sponge
During high-purity aluminium lamination, aluminum niobium intermediate alloy layer, electrolytic manganese lamella, aluminum vanadium are placed in layering from bottom to top
Between alloy-layer and sponge titanium layer；
(3) briquetting that step (2) obtains is put into can the water jacketed copper crucible of centrifugal casting true
In empty induction suspending smelting furnace, before melting, metal mold mould is preheated to 300～350 DEG C, water
Cold copper crucible vacuum induction melting furnace is evacuated to 1.0～3.0 × 10-3Mbar, with
20～30kw/min(preferred 20kw/min) rate of rise is by water jacketed copper crucible vacuum induction melting
Stove monitor system stops increasing power after rising to 160～170kw, then molten under firm power
Refining 200～250s obtains melt, makes melt mixed uniform；
(4) melt in step (3) is cast to the most preheated and gold of centrifugal rotation
Belonging in mold die, centrifuge speed is preferably 120r/min, forms the alloying Han V, Mn
β phase solidifies high Nb containing TiAl based alloy ingot casting, and furnace cooling.
Use V, Mn that the sign identical with embodiment 1, embodiment 2 and embodiment 3 obtains
Alloying β phase solidifies high Nb containing TiAl based alloy material microstructure fine uniform and without the most partially
Analysis, occurs in that the β phase of brilliant white, is mainly distributed on lamella colony grain boundaries and in net in tissue
Shape is distributed.
Claims (4)
1. V, Mn alloying β phase solidifies a preparation method for high Nb containing TiAl based alloy, and it is special
Levy and be, comprise the steps:
(1), following raw material is weighed: titanium sponge, rafifinal, aluminum niobium intermediate alloy, electrolytic manganese
Sheet and aluminum vanadium intermediate alloy；Wherein control moles the hundred of Al, Nb, V, Mn and Ti element
Point content is the Nb of Al, 5～15% of 43%～45%, the V of not higher than 0.5%, not higher than
The Mn of 1.0% and surplus are Ti and inevitable impurity；
(2), the raw material that step (1) claims is carried out compound stalk forming by metallic briquette machine,
First titanium sponge is placed in during briquetting die inside edge, the intra-zone then surrounded at titanium sponge
During high-purity aluminium lamination, aluminum niobium intermediate alloy layer, electrolytic manganese lamella, aluminum vanadium are placed in layering from bottom to top
Between alloy-layer and sponge titanium layer；
(3) briquetting that step (2) obtains is put into can the water jacketed copper crucible of centrifugal casting true
In empty induction suspending smelting furnace, before melting, metal mold mould is preheated to 300～350 DEG C, water
Cold copper crucible vacuum induction melting furnace is evacuated to 1.0 × 10-3～3.0 × 10-3Mbar, with
Water jacketed copper crucible vacuum induction melting furnace monitor system is risen to by 20～30kw/min rates of rise
Stopping after 160～170kw increasing power, then under firm power, melting 200～250s must be melted
Body, makes melt mixed uniform；
(4) melt in step (3) is cast to the most preheated and gold of centrifugal rotation
Belong in mold die, form V, Mn alloying β phase and solidify high Nb containing TiAl based alloy ingot casting,
And furnace cooling.
2. according to the method for claim 1, it is characterised in that will with 20kw/min rate of rise
Water jacketed copper crucible vacuum induction suspension smelting furnace monitor system rises to 160～170kw and enters
Row centrifugal casting forming.
3. according to the method for claim 1, it is characterised in that centrifuge speed is 120r/min.
4. according to the method for claim 1, it is characterised in that the matter of titanium sponge in step (1)
Amount purity is 99.78%, and the quality purity of rafifinal is 99.99%, closes in the middle of aluminum niobium
The quality purity of gold is 99.86%, and the quality purity of electrolytic manganese sheet is 99.99%, aluminum
The quality purity of vanadium intermediate alloy is 99.6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090686.8A CN103834844B (en) | 2014-03-12 | 2014-03-12 | A kind of V, Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090686.8A CN103834844B (en) | 2014-03-12 | 2014-03-12 | A kind of V, Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103834844A CN103834844A (en) | 2014-06-04 |
| CN103834844B true CN103834844B (en) | 2016-08-24 |
Family
ID=50798735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410090686.8A Expired - Fee Related CN103834844B (en) | 2014-03-12 | 2014-03-12 | A kind of V, Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103834844B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388714B (en) * | 2014-11-03 | 2016-08-10 | 中国航空工业集团公司北京航空材料研究院 | A kind of smelting preparation method of large scale Intermatallic Ti-Al compound ingot casting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074520A (en) * | 2013-01-14 | 2013-05-01 | 北京工业大学 | Er-containing high-niobium Ti-Al intermetallic compound material and preparation method thereof |
| CN103320670A (en) * | 2013-07-01 | 2013-09-25 | 昆山乔锐金属制品有限公司 | High-temperature high-strength titanium-aluminum alloy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05320791A (en) * | 1992-05-15 | 1993-12-03 | Mitsubishi Heavy Ind Ltd | Ti-al intermetallic compound alloy |
| DE102004056582B4 (en) * | 2004-11-23 | 2008-06-26 | Gkss-Forschungszentrum Geesthacht Gmbh | Alloy based on titanium aluminides |
| DE102007060587B4 (en) * | 2007-12-13 | 2013-01-31 | Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH | titanium aluminide |
-
2014
- 2014-03-12 CN CN201410090686.8A patent/CN103834844B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074520A (en) * | 2013-01-14 | 2013-05-01 | 北京工业大学 | Er-containing high-niobium Ti-Al intermetallic compound material and preparation method thereof |
| CN103320670A (en) * | 2013-07-01 | 2013-09-25 | 昆山乔锐金属制品有限公司 | High-temperature high-strength titanium-aluminum alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103834844A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103820676B (en) | A kind of Cr, V alloy β phase solidify high Nb containing TiAl based alloy and preparation method thereof | |
| Kalaiselvan et al. | Production and characterization of AA6061–B4C stir cast composite | |
| Chen et al. | Microstructures and mechanical properties of in-situ Al 3 Ti/2024 aluminum matrix composites fabricated by ultrasonic treatment and subsequent squeeze casting | |
| Choi et al. | Effect of combined addition of Cu and aluminum oxide nanoparticles on mechanical properties and microstructure of Al-7Si-0.3 Mg alloy | |
| CN109161770B (en) | High-modulus magnesium alloy and preparation method thereof | |
| CN103074520A (en) | Er-containing high-niobium Ti-Al intermetallic compound material and preparation method thereof | |
| CN104109784A (en) | Ultrahigh-strength Al-Zn-Mg-Cu system aluminum alloy large-size flat cast ingot and making method thereof | |
| Chen et al. | Effect of initial Ti powders size on the microstructures and mechanical properties of Al3Ti/2024 Al composites prepared by ultrasonic assisted in-situ casting | |
| CN108950349B (en) | CoFeNi2VZrx eutectic high-entropy alloy and preparation method thereof | |
| GB2477744A (en) | An aluminium-copper-titanium alloy comprising insoluble particles | |
| CN103820697B (en) | A kind of multi-element alloyed β phase solidifies high Nb containing TiAl based alloy and preparation method thereof | |
| Yeganeh et al. | The influence of Cu–15P master alloy on the microstructure and tensile properties of Al–25 wt% Mg2Si composite before and after hot-extrusion | |
| CN104962788B (en) | A kind of aluminium alloy fining agent and preparation method | |
| CN103820677B (en) | A kind of containing the novel β of Mn height Nb-γ TiAl intermetallic compound material and preparation method thereof | |
| CN114606413A (en) | High-temperature alloy for additive manufacturing and application thereof | |
| CN104404345A (en) | Tau3-phase-containing gamma-TiAl intermetallic compound cast ingot and preparation method thereof | |
| Harada et al. | Mechanical properties of cold-rolled and annealed Al–12% Mg alloy sheet with high Mg solid solubility fabricated from vertical-type high-speed twin-roll cast strip | |
| CN103834844B (en) | A kind of V, Mn alloying β phase solidifies high Nb containing TiAl based alloy and preparation method thereof | |
| CN103695708A (en) | W-containing and high-Nb novel beta-gammaTiAl intermetallic compound material and preparation method thereof | |
| Akira et al. | Mechanical and tribological properties of nano-sized Al2O3 particles on ADC12 alloy composites with Strontium modifier produced by stir casting method | |
| CN103305736A (en) | MgLiAlSrY alloy and preparation method thereof | |
| CN113430436A (en) | Low-density high-elastic-modulus as-cast dual-phase magnesium-lithium alloy and preparation method thereof | |
| CN115652156B (en) | Mg-Gd-Li-Y-Al alloy and preparation method thereof | |
| CN103820672B (en) | Cr and Mn alloying beta phase solidifying high Nb-TiAl alloy and preparation method thereof | |
| CN108977738B (en) | Hydrogen-containing titanium-based block amorphous alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 |