CN101518794A - Production method for Gamma-TiAl alloy bar - Google Patents
Production method for Gamma-TiAl alloy bar Download PDFInfo
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- CN101518794A CN101518794A CN200910071615A CN200910071615A CN101518794A CN 101518794 A CN101518794 A CN 101518794A CN 200910071615 A CN200910071615 A CN 200910071615A CN 200910071615 A CN200910071615 A CN 200910071615A CN 101518794 A CN101518794 A CN 101518794A
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Abstract
The invention relates to a production method for a bar, in particular to a production method for a Gamma-TiAl alloy bar. The production method solves the problems that a Gamma-TiAl alloy bar produced by the prior method has the defects of surface cracks, uneven diameter, uneven size of crystal grains and easy fusion caused by the reaction of Gamma-TiAl alloy and blank at high extrusion temperature. The production method comprises the steps: heating a cast ingot, keeping temperature and annealing; cutting a cylinder in the cast ingot, packaging aluminum silicate fibers, placing in the middle of a stainless steel pipe, and sealing both ends to obtain the blank; washing the sheathed blank, drying and heating the sheathed blank, keeping temperature, placing the sheathed blank in the air, putting the sheathed blank into a cup pre-pressured by glass lubricant, putting the sheathed blank into a mould to extrude to obtain the bar; annealing the bar, taking the bar out of a blast furnace for air cooling, and obtaining the Gamma-TiAl alloy bar. The obtained bar has the advantages of no surface cracks, even diameter, even size of crystal grains and no fusion caused by the reaction of the Gamma-TiAl alloy and the sheath.
Description
Technical field
The present invention relates to a kind of preparation method of alloy bar material.
Background technology
Gamma-TiAl alloy shows the amazing development prospect in Aero-Space in material, but because gamma-TiAl alloy has higher heat resistance and very low thermoplasticity, make it adopt traditional jacket extrusion process can't realize the hot extrusion of γ-TiAl smoothly, there is following shortcoming: 1, gamma-TiAl alloy surface oxidation in the heating process, very easily crack in the extrusion process subsequently, thus the bar face checking that final extruding is obtained; 2, stainless steel sheath material and gamma-TiAl alloy elevated temperature strength differ greatly, the diameter of rod thickness inequality that causes extruding to obtain, even jacket fracture, damage mould.3, extruded bars has higher thermograde from heart portion to outer rim, thereby the bar that causes extruding to obtain organizes grain size inhomogeneous; 4, when extrusion temperature reaches 1350～1400 ℃, stainless steel jacket and gamma-TiAl alloy react, and cause the fusing of stainless steel and gamma-TiAl alloy.
Summary of the invention
The present invention seeks to for the gamma-TiAl alloy bar that solves existing method preparation exist bar face checking, diameter thickness inequality, bar organize grain size inhomogeneous and when extrusion temperature is high gamma-TiAl alloy and blank react and the problem that melts, and provide a kind of preparation method of gamma-TiAl alloy bar.
The preparation method of gamma-TiAl alloy bar carries out according to the following steps: one, the gamma-TiAl alloy ingot casting is placed the high temperature insostatic pressing (HIP) stove, come out of the stove with the stove cooling after in 1250～1280 ℃, the argon gas atmosphere of 130～140MPa, being incubated 4～5h, place homogenizing annealing 12～24h under 1250～1300 ℃ the condition then, come out of the stove with the stove cooling; Two, the cylinder of cutting required size in the gamma-TiAl alloy ingot casting after annealing, wrap up the alumina silicate fibre that thickness is 2～7mm then, placing wall thickness again is the stainless steel tube middle part of 2～7mm, and be the sealing-in that under argon gas atmosphere, is welded of the corrosion resistant plate of 2～7mm with thickness with the stainless steel tube two ends, the jacket blank; Three, take out jacket blank drying after the jacket blank being placed the acetone soln ultrasonic wave clean 3～6min, place then and take out after being incubated 3～4h under 1200～1400 ℃ the condition, and in air, place 10～30s, put into the pre-stamped cup of glass lubricant then, the mould of putting into preheating again carries out hot extrusion, obtains bar; Four, bar is placed the 1～4h that anneals under 900～1000 ℃ the condition, the air cooling of coming out of the stove then promptly gets the gamma-TiAl alloy bar; Wherein the quality purity of argon gas is 99.99% in the step 1; The cylinder and the stainless steel tube of parcel alumina silicate fibre are contour in the step 2, and and the inwall of stainless steel tube between seamless; The mold temperature of preheating is 150～200 ℃ in the step 3; The extrusion ratio of hot extrusion is 6～9: 1 in the step 3, and extrusion speed is 0.1～0.5m/s.
Surface oxidation in the gamma-TiAl alloy heating process has been avoided in the sealing-in that is welded under argon gas atmosphere among the present invention, makes the bar that obtains have favorable surface quality, no face checking phenomenon; Mesosilicic acid aluminum fiber of the present invention has hindered the heat conduction between gamma-TiAl alloy and the jacket, in air, stop the process of cooling off before cooperating extruding, can improve the intensity of outer wrap material, reduce the strength difference of itself and γ-TiAl, the diameter of rod even thickness that extruding is obtained, also weakened γ in the extrusion process-thermograde of TiAl bar simultaneously, made bar be organized as the equi-axed crystal and the homogeneous grain size of perfect recrystallization from heart portion to outer rim; The use of heat-barrier material has hindered contacting of gamma-TiAl alloy and jacket, thereby both can not react and melt during high temperature; The bar crystal grain that obtains among the present invention is tiny evenly to have the good thermoplastic compatibility of deformation, is applicable to follow-up ausforming process, for the gamma-TiAl alloy forging goods of production function admirable are laid a good foundation.
Description of drawings
Fig. 1 is the diameter of the gamma-TiAl alloy bar of preparation in the specific embodiment 30 and the diameter correlation curve figure of the bar that traditional jacket extrusion process prepares, wherein ■ is the diametral curve of the gamma-TiAl alloy bar of preparation in the specific embodiment 27, ▲ be the diametral curve of the bar of traditional jacket extrusion process preparation; Fig. 2 is the micro-organization chart of the gamma-TiAl alloy bar of preparation in the specific embodiment 30.
The specific embodiment
The specific embodiment one: the preparation method of present embodiment gamma-TiAl alloy bar carries out according to the following steps: one, the gamma-TiAl alloy ingot casting is placed the high temperature insostatic pressing (HIP) stove, come out of the stove with the stove cooling after in 1250～1280 ℃, the argon gas atmosphere of 130～140MPa, being incubated 4～5h, place homogenizing annealing 12～24h under 1250～1300 ℃ the condition then, come out of the stove with the stove cooling; Two, the cylinder of cutting required size in the gamma-TiAl alloy ingot casting after annealing, wrap up the alumina silicate fibre that thickness is 2～7mm then, placing wall thickness again is the stainless steel tube middle part of 2～7mm, and be the sealing-in that under argon gas atmosphere, is welded of the corrosion resistant plate of 2～7mm with thickness with the stainless steel tube two ends, the jacket blank; Three, take out jacket blank drying after the jacket blank being placed the acetone soln ultrasonic wave clean 3～6min, place then and take out after being incubated 3～4h under 1200～1400 ℃ the condition, and in air, place 10～30s, put into the pre-stamped cup of glass lubricant then, the mould of putting into preheating again carries out hot extrusion, obtains bar; Four, bar is placed the 1～4h that anneals under 900～1000 ℃ the condition, the air cooling of coming out of the stove then promptly gets the gamma-TiAl alloy bar; Wherein the quality purity of argon gas is 99.99% in the step 1; The cylinder and the stainless steel tube of parcel alumina silicate fibre are contour in the step 2, and and the inwall of stainless steel tube between seamless; The mold temperature of preheating is 150～200 ℃ in the step 3; The extrusion ratio of hot extrusion is 6～9: 1 in the step 3, and extrusion speed is 0.1～0.5m/s.
The gamma-TiAl alloy ingot casting is to use the water jacketed copper crucible induction melting to found in the present embodiment step 1.
Wire EDM is adopted in cutting in the present embodiment step 2.
Argon arc welding is adopted in the sealing-in that is welded in the present embodiment step 2.
The pre-stamped cup of glass lubricant is that lubricant is put into mould in the present embodiment step 3, uses hydraulic press that it is compressed to cup-shape, and its interior diameter equates that with the overall diameter of jacket blank its sidewall and base thickness are 3mm.
The specific embodiment two: present embodiment and the specific embodiment one are different is to be incubated 4.5h in the step 1 in 1260 ℃, the argon gas atmosphere of 135MPa.Other step and parameter are identical with the specific embodiment one.
The specific embodiment three: present embodiment and the specific embodiment one are different is to be incubated 4h in the step 1 in 1270 ℃, the argon gas atmosphere of 130MPa.Other step and parameter are identical with the specific embodiment one.
The specific embodiment four: present embodiment and the specific embodiment one are different is to be incubated 5h in the step 1 in 1280 ℃, the argon gas atmosphere of 140MPa.Other step and parameter are identical with the specific embodiment one.
The specific embodiment five: present embodiment and the specific embodiment four are different is to place homogenizing annealing 16h under 1260 ℃ the condition in the step 1.Other step and parameter are identical with the specific embodiment four.
The specific embodiment six: present embodiment and the specific embodiment four are different is to place homogenizing annealing 18h under 1270 ℃ the condition in the step 1.Other step and parameter are identical with the specific embodiment four.
The specific embodiment seven: present embodiment and the specific embodiment four are different is to place homogenizing annealing 22h under 1290 ℃ the condition in the step 1.Other step and parameter are identical with the specific embodiment four.
The specific embodiment eight: what present embodiment and the specific embodiment seven were different is that parcel thickness is the alumina silicate fibre of 5mm in the step 2.Other step and parameter are identical with the specific embodiment seven.
The specific embodiment nine: what present embodiment and the specific embodiment seven were different is that parcel thickness is the alumina silicate fibre of 7mm in the step 2.Other step and parameter are identical with the specific embodiment seven.
The specific embodiment ten: what present embodiment and the specific embodiment seven were different is that parcel thickness is the alumina silicate fibre of 2mm in the step 2.Other step and parameter are identical with the specific embodiment seven.
The specific embodiment 11: present embodiment and the specific embodiment ten are different is that to place wall thickness in the step 2 be the stainless steel tube middle part of 3mm, and is the sealing-in that is welded under argon gas atmosphere of the corrosion resistant plate of 3mm with thickness with the stainless steel tube two ends.Other step and parameter are identical with the specific embodiment ten.
The specific embodiment 12: present embodiment and the specific embodiment ten are different is that to place wall thickness in the step 2 be the stainless steel tube middle part of 4mm, and is the sealing-in that is welded under argon gas atmosphere of the corrosion resistant plate of 4mm with thickness with the stainless steel tube two ends.Other step and parameter are identical with the specific embodiment ten.
The specific embodiment 13: present embodiment and the specific embodiment ten are different is that to place wall thickness in the step 2 be the stainless steel tube middle part of 5mm, and is the sealing-in that is welded under argon gas atmosphere of the corrosion resistant plate of 5mm with thickness with the stainless steel tube two ends.Other step and parameter are identical with the specific embodiment ten.
The specific embodiment 14: present embodiment and the specific embodiment ten are different is that to place wall thickness in the step 2 be the stainless steel tube middle part of 6mm, and is the sealing-in that is welded under argon gas atmosphere of the corrosion resistant plate of 6mm with thickness with the stainless steel tube two ends.Other step and parameter are identical with the specific embodiment ten.
The specific embodiment 15: present embodiment and the specific embodiment 14 are different is that glass lubricant is made by 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage in the step 3; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Make with the PbO of surplus.Other step and parameter are identical with the specific embodiment 14.
The specific embodiment 16: present embodiment and the specific embodiment 14 are different is that glass lubricant is made by 60% L glass, 35% graphite and 5% clay by weight percentage in the step 3.Other step and parameter are identical with the specific embodiment 14.
The specific embodiment 17: present embodiment and the specific embodiment 14 are different is that glass lubricant is made by 55% L glass, 37% graphite and 8% clay by weight percentage in the step 3.Other step and parameter are identical with the specific embodiment 14.
The specific embodiment 18: present embodiment is different with the specific embodiment one or 17 is that the preparation method of glass lubricant in the step 3 carries out according to the following steps: one, take by weighing 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage respectively; Two, the L glass and the clay that take by weighing being put into the high alumina crucible, is to sinter to fusing under 1050～1100 ℃ the condition in temperature, shrend subsequently, bead; Three, bead being worn into particle diameter is 100～150 purpose glass micro mists, mix with the graphite that takes by weighing then, and be under 40～60r/min condition then in ball milling speed, ball milling 24～48h promptly gets the glass lubricant that is used for the extruding of gamma-TiAl alloy bar; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Make with the PbO of surplus.Other step and parameter are identical with the specific embodiment one or 17.
The specific embodiment 19: what present embodiment and the specific embodiment 18 were different is that ultrasonic wave cleans 4min in the step 3.Other step and parameter are identical with the specific embodiment 18.
The specific embodiment 20: what present embodiment and the specific embodiment 18 were different is that ultrasonic wave cleans 5min in the step 3.Other step and parameter are identical with the specific embodiment 18.
The specific embodiment 21: present embodiment and the specific embodiment 20 are different is to place in the step 3 under 1300 ℃ the condition to take out behind the insulation 3.5h, and places 10s in air.Other step and parameter are identical with the specific embodiment 20.
The specific embodiment 22: present embodiment and the specific embodiment 20 are different is to place in the step 3 under 1200 ℃ the condition to take out behind the insulation 4h, and places 20s in air.Other step and parameter are identical with the specific embodiment 20.
The specific embodiment 23: present embodiment and the specific embodiment 20 are different is to place in the step 3 under 1400 ℃ the condition to take out behind the insulation 4h, and places 30s in air.Other step and parameter are identical with the specific embodiment 20.
The specific embodiment 24: present embodiment and the specific embodiment 23 are different is that the mold temperature of preheating in the step 3 is 160 ℃.Other step and parameter are identical with the specific embodiment 23.
The specific embodiment 25: present embodiment and the specific embodiment 23 are different is that the mold temperature of preheating in the step 3 is 180 ℃.Other step and parameter are identical with the specific embodiment 23.
The specific embodiment 26: present embodiment and the specific embodiment 22 are different is that the mold temperature of preheating in the step 3 is 190 ℃.Other step and parameter are identical with the specific embodiment 22.
The specific embodiment 27: present embodiment and the specific embodiment 26 are different is that the extrusion ratio of hot extrusion in the step 3 is 7: 1, and extrusion speed is 0.3m/s.Other step and parameter are identical with the specific embodiment 26.
The specific embodiment 28: present embodiment and the specific embodiment 26 are different is that the extrusion ratio of hot extrusion in the step 3 is 8: 1, and extrusion speed is 0.4m/s.Other step and parameter are identical with the specific embodiment 26.
The specific embodiment 29: present embodiment and the specific embodiment 26 are different is that the extrusion ratio of hot extrusion in the step 3 is 9: 1, and extrusion speed is 0.5m/s.Other step and parameter are identical with the specific embodiment 26.
The specific embodiment 30: the preparation method of present embodiment gamma-TiAl alloy bar carries out according to the following steps: one, the gamma-TiAl alloy ingot casting is placed the high temperature insostatic pressing (HIP) stove, in 1260 ℃, the argon gas atmosphere of 140MPa, come out of the stove with the stove cooling behind the insulation 5h, place homogenizing annealing 18h under 1300 ℃ the condition then, come out of the stove with the stove cooling; Two, the cylinder of cutting required size in the gamma-TiAl alloy ingot casting after annealing, wrap up the alumina silicate fibre that thickness is 7mm then, placing wall thickness again is the stainless steel tube middle part of 7mm, and be the sealing-in that under argon gas atmosphere, is welded of the corrosion resistant plate of 7mm with thickness with the stainless steel tube two ends, the jacket blank; Three, take out jacket blank drying after the jacket blank being placed the acetone soln ultrasonic wave clean 5min, place then under 1300 ℃ the condition and take out behind the insulation 4h, and in air, place 20s, put into the pre-stamped cup of glass lubricant then, the mould of putting into preheating again carries out hot extrusion, obtains bar; Four, bar is placed the 2h that anneals under 1000 ℃ the condition, the air cooling of coming out of the stove then promptly gets the gamma-TiAl alloy bar; Wherein the quality purity of argon gas is 99.99% in the step 1; The cylinder and the stainless steel tube of parcel alumina silicate fibre are contour in the step 2, and and the inwall of stainless steel tube between seamless; The mold temperature of preheating is 200 ℃ in the step 3; The extrusion ratio of hot extrusion is 9: 1 in the step 3, and extrusion speed is 0.4m/s.
The bar contrast of the diameter of the gamma-TiAl alloy bar for preparing in the present embodiment and the preparation of traditional jacket extrusion process, among the contrast experiment with extrusion modling place at first of gamma-TiAl alloy bar serve as the test initial point, axially measure along the gamma-TiAl alloy bar then, abscissa is the distance (axial along the gamma-TiAl alloy bar) between each test point and the initial point among Fig. 1, ordinate is the diameter that squeezes out the gamma-TiAl alloy bar, by the gamma-TiAl alloy diameter of rod even thickness of the present invention preparation as can be known among Fig. 1; As shown in Figure 2, the gamma-TiAl alloy homogeneous grain size of the present invention's preparation.
The specific embodiment 31: the preparation method of present embodiment gamma-TiAl alloy bar carries out according to the following steps: one, the gamma-TiAl alloy ingot casting is placed the high temperature insostatic pressing (HIP) stove, in 1250 ℃, the argon gas atmosphere of 130MPa, come out of the stove with the stove cooling behind the insulation 4h, place homogenizing annealing 12h under 1250 ℃ the condition then, come out of the stove with the stove cooling; Two, the cylinder of cutting required size in the gamma-TiAl alloy ingot casting after annealing, wrap up the alumina silicate fibre that thickness is 2mm then, placing wall thickness again is the stainless steel tube middle part of 2mm, and be the sealing-in that under argon gas atmosphere, is welded of the corrosion resistant plate of 2mm with thickness with the stainless steel tube two ends, the jacket blank; Three, take out jacket blank drying after the jacket blank being placed the acetone soln ultrasonic wave clean 4min, place then under 1300 ℃ the condition and take out behind the insulation 3h, and in air, place 10s, put into the pre-stamped cup of glass lubricant then, the mould of putting into preheating again carries out hot extrusion, obtains bar; Four, bar is placed the 4h that anneals under 900 ℃ the condition, the air cooling of coming out of the stove then promptly gets the gamma-TiAl alloy bar; Wherein the quality purity of argon gas is 99.99% in the step 1; The cylinder and the stainless steel tube of parcel alumina silicate fibre are contour in the step 2, and and the inwall of stainless steel tube between seamless; The mold temperature of preheating is 150 ℃ in the step 3; The extrusion ratio of hot extrusion is 8: 1 in the step 3, and extrusion speed is 0.5m/s.
The bar contrast diameter thickness of the diameter of the gamma-TiAl alloy bar for preparing in the present embodiment and the preparation of traditional jacket extrusion process is even, bar flawless, and homogeneous grain size.
Claims (10)
1, a kind of preparation method of gamma-TiAl alloy bar, the preparation method who it is characterized in that the gamma-TiAl alloy bar carries out according to the following steps: one, the gamma-TiAl alloy ingot casting is placed the high temperature insostatic pressing (HIP) stove, come out of the stove with the stove cooling after in 1250～1280 ℃, the argon gas atmosphere of 130～140MPa, being incubated 4～5h, place homogenizing annealing 12～24h under 1250～1300 ℃ the condition then, come out of the stove with the stove cooling; Two, the cylinder of cutting required size in the gamma-TiAl alloy ingot casting after annealing, wrap up the alumina silicate fibre that thickness is 2～7mm then, placing wall thickness again is the stainless steel tube middle part of 2～7mm, and be the sealing-in that under argon gas atmosphere, is welded of the corrosion resistant plate of 2～7mm with thickness with the stainless steel tube two ends, the jacket blank; Three, take out jacket blank drying after the jacket blank being placed the acetone soln ultrasonic wave clean 3～6min, place then and take out after being incubated 3～4h under 1200～1400 ℃ the condition, and in air, place 10～30s, put into the pre-stamped cup of glass lubricant then, the mould of putting into preheating again carries out hot extrusion, obtains bar; Four, bar is placed the 1～4h that anneals under 900～1000 ℃ the condition, the air cooling of coming out of the stove then promptly gets the gamma-TiAl alloy bar; Wherein the quality purity of argon gas is 99.99% in the step 1; The cylinder and the stainless steel tube of parcel alumina silicate fibre are contour in the step 2, and and the inwall of stainless steel tube between seamless; The mold temperature of preheating is 150～200 ℃ in the step 3; The extrusion ratio of hot extrusion is 6～9:1 in the step 3, and extrusion speed is 0.1～0.5m/s.
2, the preparation method of a kind of gamma-TiAl alloy bar according to claim 1 is characterized in that in the step 1 being incubated 4h in 1270 ℃, the argon gas atmosphere of 130MPa.
3, the preparation method of a kind of gamma-TiAl alloy bar according to claim 2 is characterized in that placing in the step 1 homogenizing annealing 16h under 1260 ℃ the condition.
4, the preparation method of a kind of gamma-TiAl alloy bar according to claim 3 is characterized in that parcel thickness is the alumina silicate fibre of 5mm in the step 2.
5, the preparation method of a kind of gamma-TiAl alloy bar according to claim 4, it is characterized in that placing in the step 2 wall thickness is the stainless steel tube middle part of 3mm, and is the sealing-in that is welded under argon gas atmosphere of the corrosion resistant plate of 3mm with thickness with the stainless steel tube two ends.
6, the preparation method of a kind of gamma-TiAl alloy bar according to claim 5 is characterized in that glass lubricant in the step 3 made by 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Make with the PbO of surplus.
7, according to the preparation method of claim 1 or 6 described a kind of gamma-TiAl alloy bars, it is characterized in that the preparation method of glass lubricant in the step 3 carries out according to the following steps: one, take by weighing 50%～69% L glass, 30%～40% graphite and 1%～10% clay by weight percentage respectively; Two, the L glass and the clay that take by weighing being put into the high alumina crucible, is to sinter to fusing under 1050～1100 ℃ the condition in temperature, shrend subsequently, the glass slag; Three, glass sizing being become particle diameter is 100～150 purpose glass micro mists, mix with the graphite that takes by weighing then, and be under 40～60r/min condition then in ball milling speed, ball milling 24～48h promptly gets the glass lubricant that is used for the extruding of gamma-TiAl alloy bar; Wherein L glass is by mass percentage by 10%～15% TiO
2, 3%～5% B
2O
3, 0.9%～1.0% Al
2O
3, 0.9%～1.0% SiO
2, 0.9%～2.0% Cr
2O
3, 0.9%～2.0% Fe
2O
3Make with the PbO of surplus.
8, the preparation method of a kind of gamma-TiAl alloy bar according to claim 7 is characterized in that placing in the step 3 under 1300 ℃ the condition and takes out behind the insulation 3.5h, and place 10s in air.
9, the preparation method of a kind of gamma-TiAl alloy bar according to claim 8, the mold temperature that it is characterized in that preheating in the step 3 is 160 ℃.
10, the preparation method of a kind of gamma-TiAl alloy bar according to claim 9, the extrusion ratio that it is characterized in that hot extrusion in the step 3 is 7:1, extrusion speed is 0.3m/s.
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|---|---|---|---|
| CN2009100716152A CN101518794B (en) | 2009-03-23 | 2009-03-23 | Production method for Gamma-TiAl alloy bar |
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| CN101518794B CN101518794B (en) | 2010-09-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856675A (en) * | 2010-06-12 | 2010-10-13 | 哈尔滨工业大学 | High-temperature thermal extrusion moulding method of TiAl intermetallic compound material |
| CN102205486A (en) * | 2011-03-31 | 2011-10-05 | 西北有色金属研究院 | Method for processing iridium alloy bar or plate |
| CN103056182A (en) * | 2013-01-24 | 2013-04-24 | 太原科技大学 | Method for producing heavy-caliber thick-walled seamless steel pipe by casting extrusion composite molding |
| CN106521196A (en) * | 2016-11-04 | 2017-03-22 | 西北有色金属研究院 | Preparation method of gamma-TiAl-based alloy bar |
| CN109402543A (en) * | 2018-12-13 | 2019-03-01 | 西安西工大超晶科技发展有限责任公司 | A kind of titanium-aluminium alloy bar sheathed extrusion preparation method |
| CN112746232A (en) * | 2020-12-28 | 2021-05-04 | 西北工业大学 | Method for improving strong plasticity of beta-type gamma-TiAl alloy |
| CN115572858A (en) * | 2022-09-06 | 2023-01-06 | 北京科技大学 | Fine fully lamellar deformation TiAl alloy and preparation method thereof |
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2009
- 2009-03-23 CN CN2009100716152A patent/CN101518794B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856675A (en) * | 2010-06-12 | 2010-10-13 | 哈尔滨工业大学 | High-temperature thermal extrusion moulding method of TiAl intermetallic compound material |
| CN101856675B (en) * | 2010-06-12 | 2011-11-16 | 哈尔滨工业大学 | High-temperature thermal extrusion moulding method of TiAl intermetallic compound material |
| CN102205486A (en) * | 2011-03-31 | 2011-10-05 | 西北有色金属研究院 | Method for processing iridium alloy bar or plate |
| CN102205486B (en) * | 2011-03-31 | 2012-12-05 | 西北有色金属研究院 | Method for processing iridium alloy bar or plate |
| CN103056182A (en) * | 2013-01-24 | 2013-04-24 | 太原科技大学 | Method for producing heavy-caliber thick-walled seamless steel pipe by casting extrusion composite molding |
| CN106521196A (en) * | 2016-11-04 | 2017-03-22 | 西北有色金属研究院 | Preparation method of gamma-TiAl-based alloy bar |
| CN109402543A (en) * | 2018-12-13 | 2019-03-01 | 西安西工大超晶科技发展有限责任公司 | A kind of titanium-aluminium alloy bar sheathed extrusion preparation method |
| CN112746232A (en) * | 2020-12-28 | 2021-05-04 | 西北工业大学 | Method for improving strong plasticity of beta-type gamma-TiAl alloy |
| CN112746232B (en) * | 2020-12-28 | 2021-12-28 | 西北工业大学 | Method for improving strong plasticity of beta-type gamma-TiAl alloy |
| CN115572858A (en) * | 2022-09-06 | 2023-01-06 | 北京科技大学 | Fine fully lamellar deformation TiAl alloy and preparation method thereof |
| CN115572858B (en) * | 2022-09-06 | 2024-03-26 | 北京科技大学 | Fine full-lamellar deformed TiAl alloy and preparation method thereof |
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