CN102343468A - Welding method of rotor and steel shaft of titanium-aluminum alloy turbocharger - Google Patents
Welding method of rotor and steel shaft of titanium-aluminum alloy turbocharger Download PDFInfo
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- CN102343468A CN102343468A CN2011100383359A CN201110038335A CN102343468A CN 102343468 A CN102343468 A CN 102343468A CN 2011100383359 A CN2011100383359 A CN 2011100383359A CN 201110038335 A CN201110038335 A CN 201110038335A CN 102343468 A CN102343468 A CN 102343468A
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Abstract
The invention introduces a welding method of a rotor and a steel shaft of a titanium-aluminum alloy turbocharger, and the titanium-aluminum alloy turbo-rotor comprises the following components: 32-36% by weight of Ti, 0.1-2% by weight of Al, 0.1-5% by weight of Si, 0.1-3% by weight of Nb and Cr, and a brazing material is BNi73CrFeSiB(C), BNi82CrSiBFe, BNi92SiB, BNi95SiB or BNi71CrSi; the thickness of the brazing material is 0.02-0.20mm; the brazing temperature is 10-80 DEG C above a liquid phase line; the pressure is 0.1-20MPa; and the time is 30 seconds-30 minutes. The tensile strength Rm of a joint subjected to brazing at the room temperature is not less than 180MPa; and the tensile strength Rm at the temperature of 600 DEG C is not less than 155MPa, and the use requirements can be further met.
Description
Technical field
The present invention relates to the welding method of a kind of titanium-aluminium alloy and steel, the welding method of particularly a kind of titanium-aluminum alloy turbine supercharger rotor and steel axle.
Background technology
Along with engine performance such as Aeronautics and Astronautics, automobile, naval vessel improve constantly, to the demands for higher performance of high-temperature material, promptly higher intensity, antioxygenic property and lighter density etc.γ-TiAl base alloy material has advantages such as good high-temperature intensity, creep resistance and antioxygenic property; Developing into materials for aeroengines of new generation; Can be used for making compressor, combustion gas turbine blade; Compressor stator deep bead; Out frame and casting of other complex-shaped large scales and forging parts, but heavy nickel base superalloy loss of weight about 50% substituted with part.γ-TiAl base alloy has been used to make the turbocharger, air valve of automobile engine etc., and common titanium aluminum has United States Patent (USP) material atomic percent to consist of the alloy of Ti48Al2Cr2Nb; With and Japan Patent Ti-(32-36wt%) Al-(0.1-2 wt%) Si-(0.1-5wt%) Nb-(0.1-3wt%) the Cr titanium-aluminium alloy of code name RNT650 commonly used or DAT-TA1.
Turbo blade with TiAl makes must could be formed a complete part with the welding of steel axle, and steel shaft material commonly used is 42CrMo and 40Cr.At present, the most frequently used connected mode of the turbine of vehicle turbocharger is high-temperature nickel-base alloy turbine and the welding of steel axle direct friction or adopts electron beam welding.Because TiAl alloy welding poor-performing, a great problem that is applied to turbocharger at present is exactly the interconnection technique of TiAl alloy turbine and steel rotating shaft.The key issue of titanium aluminium turbine and steel axle welding is different at the linear expansion coefficient of the formation that middle phase is arranged at the interface and two kinds of materials, room temperature to 700 ℃, and the linear expansion coefficient of TiAl is 10 * 10
-6/ ℃, than 15 * 10 of steel
-6/ ℃ little, it is very big that two kinds of materials directly weld the back thermal stress, and crackle or brittle fracture appear in weldment.Therefore, the particularity of TiAl alloy material has determined the TiAl alloy turbine can not adopt direct friction welding or has adopted these two kinds of universal mode of electron beam welding to realize being connected of TiAl alloy turbines and steel axle.
Application number is 97125874.0 Chinese patent; In the connection procedure of titanium aluminium turbine and steel axle, introduced the scheme of middle transition body; The syndeton of TiAl alloy turbine and steel axle adopts the syndeton that adds the middle transition body, and the material of transition body is selected common nickel base superalloy; Concrete connectivity scenario is that TiAl alloy turbine and middle transition body adopt the hot charging interference fit, and the middle transition body adopts friction welding to be connected with the steel axle.
People such as Li Yulong, He Peng, Feng Jicai are report in " TiAl base alloy and steel interconnection technique progress " that " welding " 2005 (10) delivered; The people such as T.Tetsui of Japan adopt the method for attachment of Ni base alloy cover transition to connect TiAl alloy turbine and steel axle; At first adopt the method for soldering to connect TiAl and Ni base alloy cover, adopt the method for electron beam to connect Ni base alloy cover and structure steel shaft again.The turbocharging rotor of this employing Ni base alloy transition that Tetsui connects has been assemblied on the Mitsubishi model engine, has carried out the engine running test, has obtained effect preferably.
Can connect titanium aluminium turbine and steel axle though more than add the connected mode of intermediate, increase production process and cost, be unfavorable for industrialization production in enormous quantities.It is the extensive Industry Promotion mode of thinking the most rationally, practicing thrift reliably cost at present that titanium aluminium turbine is connected with the direct soldering of steel axle.
" diffusion brazing of TiAl/40Cr " report that Zhang Ke, Wu Luhai, Lou Songnian, Ruan He etc. deliver in " welding " 2002 (10); Be the solderability and increase bonding strength of improving the TiAl/40Cr joint; Select that Ti content is 4% for use, to be approximately 800 ℃, thickness be that the Ag-Cu-Ti paper tinsel of 0.20mm is as the intermediate layer to fusion temperature; Welding method adopts vacuum brazing; Welding parameter is: welding pressure 0.4 MPa; Weld intervals 10 min, 900 ℃ of welding temperatures, vacuum 10
-2Pa.The tensile strength of joint is 387 MPa, approximates the tensile strength of mother metal.A high reason of strength of joint that with Ag-Cu-Ti is solder is that comparatively strong diffusion has taken place for Ag in the weld seam, Cu, Ti element, and has generated the B intermetallic compound AlCu mutually of the mutually single-phase Ag of A and the rich Cu of rich Ag
2The Ti phase is because AlCu
2Ti is B mutually
2Structure is a kind of harder phase, when the thickness of this phase relatively approaches, has just played the effect that strengthens.
Zhu Ying, Zhang Mo, kingdom build, Kang Hui, Qu Ping report that in " vacuum brazing of TiAl base alloy and 42CrMo steel " that " space flight manufacturing technology " 2005.8 delivered basic alloy of TiAl and 42CrMo steel are carried out soldering, and the solder composition is Ti-20Zr-Cu-Ni.Solder adopts the quick setting method preparation, and the foil thickness of preparation is about 0.05mm.Brazing process parameter is: vacuum 1.0 * 10
-3Pa, 930 ℃ of brazing temperatures, temperature retention time is respectively 15min, 30min, 60min.Joint average tensile strength 110MPa, the zone of fracture of joint is the boundary layer between 42CrMo mother metal and solder all.
Exhaust gas turbocharge is one of major technique of modern gasoline machine and Diesel engine raising power, and charging turbine is the high speed rotary work under the engine fuel exhaust gas driven, and the diesel engine secondary speed is generally (5-20) * 10
4R/min, the gasoline engine secondary speed can reach (25-26) * 10 usually
4R/min, and turbine need bear the high-temperature work environment about 700-950 ℃ for a long time.Charging turbine is through structure steel shaft and the work of aluminum air compressor wheel connecting band dynamic pressure mechanism of qi wheel, and charging turbine rotor and structure steel shaft junction operating temperature can reach 500-600 ℃.Use silver-base solder and titanium based solder to carry out the soldering of titanium aluminium turbine and steel axle, though the joint of soldering can satisfy the instructions for use of booster turbine rotor room temperature, soldered fitting is difficult under 500-600 ℃, work long hours.
The selection of solder need be different according to the material of titanium-aluminium alloy during soldering, the difference of the material of steel axle is analyzed and select; As telling about in the soldering document; During soldering between solder and the titanium-aluminium alloy, between solder and the steel axle, the counterdiffusion mutually of element all can take place between steel axle and the titanium aluminium, cause titanium aluminium turbine wheel shaft one side, steel axle one side and commissure can produce different compounds.The compound that the welding point of different filler produces is different; The microscopic structure of different solder thickness, brazing temperature, dwell pressure and time to welding point has influence in various degree; Thereby make the room temperature of welding axle and performances such as elevated temperature strength, plasticity produce huge difference, the room temperature and the high temperature of final influence welding turbine wheel shaft are used.Therefore, need be according to different titanium aluminium turbine materials and the soldering of steel axial wood matter choose reasonable kind with solder, and the technological parameter during soldering.
Summary of the invention
Technical problem to be solved by this invention provides the welding method of a kind of titanium-aluminum alloy turbine supercharger rotor and steel axle; Through selecting the technological parameter of rational solder and soldering; Be applicable to Ti-(32-36wt%) Al-(0.1-2 wt%) Si-(0.1-5 wt%) Nb-(0.1-3 wt%) Cr material titanium aluminium turbine rotor and 42CrMo; 40Cr; The welding of 35CrMo structure steel shaft; Bigger Ti-Al alloy turbine rotor of performance difference and steel axle can be combined to satisfy the working condition requirement of vehicular engine supercharging rotor-support-foundation system securely, guarantee that the turbine wheel shaft welding point works long hours under 500-600 ℃.
For the purpose that realizes solving the problems of the technologies described above, the present invention has adopted following technical scheme:
The welding method of titanium-aluminum alloy turbine supercharger rotor of the present invention and steel axle; The Ti-Al alloy turbine rotor composition is: Ti-(32-36wt%) Al-(0.1-2 wt%) Si-(0.1-5 wt%) Nb-(0.1-3 wt%) Cr; The composition of steel axle is 42CrMo, 40Cr or 35CrMo structural steel; Be characterised in that to weld to use with solder to be BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB or BNi71CrSi, soldering processes are selected induction brazing or vacuum brazing for use; During induction brazing, turbine and steel axle need be in solderings under the inert gas shielding, to prevent high-temperature oxydation; During vacuum brazing, need the certain vacuum of maintenance in the soldering oven, to prevent high-temperature oxydation; Soldering processes are:
1) solder thickness 0.02-0.20mm, preferred 0.03-0.05mm;
2) brazing temperature: the above 10-80 of solder liquidus temperature ℃, the above 30-50 of preferred liquid phase line ℃;
3) soldering pressure is 0.1-20MPa, preferred 2-8MPa;
4) holding time 30 seconds-30min, the preferred 5-10min of vacuum brazing, the preferred 2-3min of induction brazing;
5) vacuum during vacuum brazing: 1
*10
-4--1
*10
-1Pa, preferred (1-10)
*10
-2Pa; Inert gas shielding when adopting argon gas to carry out titanium aluminium and the soldering of steel axle during induction brazing.Here said vacuum is meant the vacuum overbottom pressure in the brazing equipment burner hearth.
Further, said 42CrMo structural steel chemical composition mass percent consists of: C/0.38-0.45, and Si/0.17-0.37, Mn/0.5-0.8, Mo/0.15-0.25, Cr/0.9-1.25, all the other are iron; 40Cr structural steel chemical composition mass percent consists of: C/0.37-0.44, and Si/0.17-0.37, Mn/0.5-0.8, Cr/0.8-1.1, all the other are iron; 35CrMo structural steel chemical composition mass percent consists of: C/0.32-0.40, and Si/0.17-0.37, Mn/0.4-0.7, Mo/0.15-0.25, Cr/0.8-1.1, all the other are iron.
The chemical composition mass percent of said BNi73CrFeSiB (C) solder consists of Co≤0.1, Cr/13-15, and Si/4-5, B/2.75-3.5, Fe/4-5, C/0.6-0.9, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi82CrSiBFe solder consists of Co≤0.1, Cr/6-8, and Si/4-5, B/2.75-3.5, Fe/2.5-3.5, C≤0.06, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi92SiB solder consists of Co≤0.1, Si/4-5, and B/2.75-3.5, Fe≤0.5, C≤0.06, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi95SiB solder consists of Co≤0.1, Si/3-4, and B/1.5-2.2, Fe≤1.5, C≤0.06, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi71CrSi solder consists of Co≤0.1, Cr/18.5-19.5, and Si/9.75-10.5, B≤0.03, C≤0.06, P≤0.02, Ni is a surplus.
Solder BNi73CrFeSiB (C) corresponding U.S. trade mark BNi-1; The corresponding U.S. trade mark BNi-2 of BNi82CrSiBFe; The corresponding U.S. trade mark BNi-3 of BNi92SiB; The corresponding U.S. trade mark BNi-4 of BNi95SiB; The corresponding U.S. trade mark BNi-5 of BNi71CrSi.
The corresponding Japanese trade mark SCM440 of 42CrMo, U.S. trade mark ASTM 4140; The 40Cr material is compared with 42CrMo, and except that not having the Mo element, all the other compositions and content are basic identical, corresponding Japanese trade mark SCr440, U.S. trade mark ASTM 5140; The 35CrMo material is compared with 42CrMo, and except that C content was low slightly, all the other compositions and content were basic identical, corresponding Japanese trade mark SCM435, U.S. trade mark ASTM4135.
Various composition of the present invention, content and proportioning if do not specify, all are meant mass percent composition, content and proportioning.
These technical schemes also can mutual combination perhaps combine, thereby reach better technique effect.
Through adopting technique scheme, the present invention has following beneficial effect:
The welding method of a kind of titanium-aluminum alloy turbine supercharger rotor of the present invention and steel axle; Adopt BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi as the soldering solder; Carry out the vacuum brazing and the induction brazing of Ti-(32-36wt%) Al-(0.1-2 wt%) Si-(0.1-5 wt%) Nb-(0.1-3 wt%) Cr Ti-Al alloy turbine rotor and 42CrMo, 40Cr, 35CrMo structure steel shaft, the intensity during gentle 600 ℃ of junction chamber after the soldering is following: room temperature tensile strength Rm: >=180MPa; 600 ℃ of tensile strength Rm: >=155MPa satisfy the instructions for use after titanium aluminium turbine wheel shaft and steel axle weld.
The specific embodiment
Embodiment 1
Mass percent consists of titanium aluminium material turbine wheel shaft and the 42CrMo steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder to comprise that the BNi95SiB of the BNi92SiB of the BNi82CrSiBFe of the BNi73CrFeSiB (C) of corresponding U.S. trade mark BNi-1, corresponding U.S. trade mark BNi-2, corresponding U.S. trade mark BNi-3, corresponding U.S. trade mark BNi-4, the BNi71CrSi of corresponding U.S. trade mark BNi-5 carry out induction brazing, induction brazing technology is: 1) solder thickness 0.04mm; 2) brazing temperature: above 50 ℃ of solder liquidus temperature; 3) soldering pressure is 5MPa; 4) holding time 2min; 5) logical argon gas carries out inert gas-shielded arc welding.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 1.
Embodiment 2
Mass percent consists of titanium aluminium material turbine wheel shaft and the 42CrMo steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi to carry out induction brazing, induction brazing technology is: 1) solder thickness 0.02mm; 2) brazing temperature: above 80 ℃ of solder liquidus temperature; 3) soldering pressure is 8MPa; 4) holding time 5min; 5) logical argon gas carries out inert gas-shielded arc welding.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 1.
Embodiment 3
Mass percent consists of titanium aluminium material turbine wheel shaft and the 42CrMo steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi to carry out vacuum brazing, vacuum brazing technique is: 1) solder thickness 0.2mm; 2) brazing temperature: above 10 ℃ of solder liquidus temperature; 3) soldering pressure is 20MPa; 4) holding time 2min; 5) vacuum overbottom pressure: 1 * 10
-4Pa.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 1.
Embodiment 4
Mass percent consists of titanium aluminium material turbine wheel shaft and the 40Cr steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi to carry out vacuum brazing, vacuum brazing technique is: 1) solder thickness 0.04mm; 2) brazing temperature: above 50 ℃ of solder liquidus temperature; 3) soldering pressure is 2MPa; 4) holding time 10min; 5) vacuum overbottom pressure: 1 * 10
-2Pa.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 2.
Embodiment 5
Mass percent consists of titanium aluminium material turbine wheel shaft and the 40Cr steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi to carry out vacuum brazing, vacuum brazing technique is: 1) solder thickness 0.02mm; 2) brazing temperature: above 80 ℃ of solder liquidus temperature; 3) soldering pressure is 0.1MPa; 4) holding time 30min; 5) vacuum: 1 * 10
-1Pa.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 2.
Embodiment 6
Mass percent consists of titanium aluminium material turbine wheel shaft and the 40Cr steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi to carry out induction brazing, induction brazing technology is: 1) solder thickness 0.2mm; 2) brazing temperature: above 10 ℃ of solder liquidus temperature; 3) soldering pressure is 20MPa; 4) 30 seconds holding times; 5) logical argon gas carries out inert gas-shielded arc welding.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 2.
Embodiment 7
Mass percent consists of titanium aluminium material turbine wheel shaft and the 35CrMo steel axle of Ti-33.5Al-4.8Nb-1.0Cr-0.3Si; Adopt nickel-based solder BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB, BNi71CrSi to carry out vacuum brazing, vacuum brazing technique is: 1) solder thickness 0.04mm; 2) brazing temperature: above 50 ℃ of solder liquidus temperature; 3) soldering pressure is 2MPa; 4) holding time 10min; 5) vacuum overbottom pressure: 1 * 10
-2Pa.After the soldering, welding point room temperature and 600 ℃ of tensile strength are as shown in table 2.
Table 1
The brazing process parameter of titanium aluminium turbine and steel axle and soldered fitting mechanical property table
Table 2
The brazing process parameter of titanium aluminium turbine and steel axle and soldered fitting mechanical property table
Claims (7)
1. the welding method of titanium-aluminum alloy turbine supercharger rotor and steel axle; The Ti-Al alloy turbine rotor composition is: Ti-(32-36wt%) Al-(0.1-2 wt%) Si-(0.1-5 wt%) Nb-(0.1-3 wt%) Cr; The steel axle is 42CrMo, 40Cr or 35CrMo structural steel; Be characterised in that to weld to use with solder to be BNi73CrFeSiB (C), BNi82CrSiBFe, BNi92SiB, BNi95SiB or BNi71CrSi, soldering processes are selected induction brazing or vacuum brazing for use; During induction brazing, turbine and steel axle need be in solderings under the inert gas shielding; During vacuum brazing, need the vacuum that keeps certain in the soldering oven; Soldering processes are:
1) solder thickness 0.02-0.20mm;
2) brazing temperature: the above 10-80 of solder liquidus temperature ℃;
3) soldering pressure is 0.1-20MPa;
4) holding time 30 seconds-30min;
5) vacuum during vacuum brazing: 1
*10
-4--1
*10
-1Pa; Inert gas shielding when adopting argon gas to carry out titanium aluminium and the soldering of steel axle during induction brazing.
2. according to the welding method of said titanium-aluminum alloy turbine supercharger rotor of claim 1 and steel axle, it is characterized in that: described solder thickness is 0.03-0.05mm.
3. according to the welding method of said titanium-aluminum alloy turbine supercharger rotor of claim 1 and steel axle, it is characterized in that: described brazing temperature is the above 30-50 of solder liquidus curve ℃.
4. according to the welding method of said titanium-aluminum alloy turbine supercharger rotor of claim 1 and steel axle, it is characterized in that: described soldering pressure is 2-8MPa.
5. according to the welding method of said titanium-aluminum alloy turbine supercharger rotor of claim 1 and steel axle, it is characterized in that: vacuum is (1-10) during described vacuum brazing
*10
-2Pa.
6. according to the welding method of said titanium-aluminum alloy turbine supercharger rotor of claim 1 and steel axle; It is characterized in that: the chemical composition mass percent of described 42CrMo structural steel consists of: C/0.38-0.45; Si/0.17-0.37; Mn/0.5-0.8; Mo/0.15-0.25; Cr/0.9-1.25, all the other are iron; The chemical composition mass percent of 40Cr structural steel consists of: C/0.37-0.44, and Si/0.17-0.37, Mn/0.5-0.8, Cr/0.8-1.1, all the other are iron; The chemical composition mass percent of 35CrMo structural steel consists of: C/0.32-0.40, and Si/0.17-0.37, Mn/0.4-0.7, Mo/0.15-0.25, Cr/0.8-1.1, all the other are iron.
7. according to the welding method of said titanium-aluminum alloy turbine supercharger rotor of claim 1 and steel axle; It is characterized in that: the chemical composition mass percent of said BNi73CrFeSiB (C) solder consists of Co≤0.1; Cr/13-15; Si/4-5; B/2.75-3.5, Fe/4-5, C/0.6-0.9; P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi82CrSiBFe solder consists of Co≤0.1, Cr/6-8, and Si/4-5, B/2.75-3.5, Fe/2.5-3.5, C≤0.06, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi92SiB solder consists of Co≤0.1, Si/4-5, and B/2.75-3.5, Fe≤0.5, C≤0.06, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi95SiB solder consists of Co≤0.1, Si/3-4, and B/1.5-2.2, Fe≤1.5, C≤0.06, P≤0.02, Ni is a surplus; The chemical composition mass percent of BNi71CrSi solder consists of Co≤0.1, Cr/18.5-19.5, and Si/9.75-10.5, B≤0.03, C≤0.06, P≤0.02, Ni is a surplus.
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Cited By (5)
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|---|---|---|---|---|
| CN102554456A (en) * | 2012-02-24 | 2012-07-11 | 华北电力大学 | Diffusion welding method for titanium-aluminum based alloy and titanium alloy added amorphous interlayer |
| CN103408317A (en) * | 2013-07-24 | 2013-11-27 | 西北工业大学 | High-temperature brazed connection method for C/C composite material and nickel-based high-temperature alloy |
| CN107931763A (en) * | 2016-10-12 | 2018-04-20 | 天津大学 | A kind of method for welding being reliably connected and improve Ti Al Nb alloy self performances |
| CN113649720A (en) * | 2021-07-20 | 2021-11-16 | 河北钢研德凯科技有限公司 | Composite connection method of titanium-aluminum alloy turbine and steel shaft |
| CN113714584A (en) * | 2021-09-08 | 2021-11-30 | 中国航发北京航空材料研究院 | Connecting method and auxiliary tool for titanium-aluminum compound turbine and steel shaft |
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| CN101352772A (en) * | 2008-08-13 | 2009-01-28 | 西北工业大学 | Diffusion welding method of TiAl/Nb based alloy and Ni based high-temperature alloy |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102554456A (en) * | 2012-02-24 | 2012-07-11 | 华北电力大学 | Diffusion welding method for titanium-aluminum based alloy and titanium alloy added amorphous interlayer |
| CN102554456B (en) * | 2012-02-24 | 2014-05-07 | 华北电力大学 | Diffusion welding method for titanium-aluminum based alloy and titanium alloy added amorphous interlayer |
| CN103408317A (en) * | 2013-07-24 | 2013-11-27 | 西北工业大学 | High-temperature brazed connection method for C/C composite material and nickel-based high-temperature alloy |
| CN103408317B (en) * | 2013-07-24 | 2015-01-28 | 西北工业大学 | High-temperature brazed connection method for C/C composite material and nickel-based high-temperature alloy |
| CN107931763A (en) * | 2016-10-12 | 2018-04-20 | 天津大学 | A kind of method for welding being reliably connected and improve Ti Al Nb alloy self performances |
| CN113649720A (en) * | 2021-07-20 | 2021-11-16 | 河北钢研德凯科技有限公司 | Composite connection method of titanium-aluminum alloy turbine and steel shaft |
| CN113714584A (en) * | 2021-09-08 | 2021-11-30 | 中国航发北京航空材料研究院 | Connecting method and auxiliary tool for titanium-aluminum compound turbine and steel shaft |
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Application publication date: 20120208 |