CN101352772A - Diffusion welding method of TiAl/Nb based alloy and Ni based high-temperature alloy - Google Patents
Diffusion welding method of TiAl/Nb based alloy and Ni based high-temperature alloy Download PDFInfo
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- CN101352772A CN101352772A CNA2008101506053A CN200810150605A CN101352772A CN 101352772 A CN101352772 A CN 101352772A CN A2008101506053 A CNA2008101506053 A CN A2008101506053A CN 200810150605 A CN200810150605 A CN 200810150605A CN 101352772 A CN101352772 A CN 101352772A
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Abstract
The invention discloses a dispersing welding method for a TiAl/Nb series alloy and a Ni-based high temperature alloy. First, a middle layer formed by overlapping a processed Nb foil with a Ni foil is arranged between the TiAl/Nb series alloy and the Ni-based high temperature alloy, the surfaces of which are processed; wherein, the Nb foil is contacted with the TiAl/Nb series alloy and the Ni foil is contacted with the Ni-based high temperature alloy to construct a welded workpiece; the welded workpiece is arranged between an upper squeeze head and a lower squeeze head in a vacuum dispersing welding boiler; a welding resistance layer is arranged between the upper squeeze head and the TiAl/Nb series alloy as well as between the lower squeeze head and the Ni-based high temperature alloy; the dispersing welding of the TiAl/Nb series alloy and the Ni-based high temperature alloy are finished in the vacuum dispersing welding boiler. Due to the dispersing welding method of adding a compound middle layer of Nb-Ni, no hard brittle phases are generated on a connection interface; the anti-tension intensity of a joint is improved from 183MPa art to 516-750MPa; the shearing intensity of the joint is improved from 359MPa to 372-528MPa.
Description
Technical field
The present invention relates to the diffusion welding method that a kind of TiAl/Nb is alloy and Ni based high-temperature alloy.
Background technology
TiAl, Ti
3Al and Ti
2AlNb base alloy (hereinafter to be referred as: TiAl/Nb is an alloy) serviceability temperature is respectively at 800～900 ℃, 600～700 ℃ and 650～750 ℃, makes the field extensive use at Aeronautics and Astronautics aircraft hot-end component.
Document " influence of TiAl/40Cr steel diffusion linkage interface institutional framework butt joint intensity, He Peng, Feng Jicai, Qian Yiyu.Material science and technology, 2003,11 2 phases of volume " a kind of TiAl/40Cr steel diffusion method of attachment is disclosed, this method adopts diffusion welding method, has realized that TiAl is connected with the direct of 40Cr steel, owing to do not contain low melting material in the joint, can use under hot conditions.But the intensity of joint is lower, and maximum pulling strength only is 183MPa.
Document " Diffusion bonding of laser-surface-modified gamma titanium aluminide alloy tonickel-base casting alloy; Luo GX; Wu GQ; Huang Z; Ruan ZJ.Scripta Materialia 2007; 57:521-524 " discloses a kind of γ-TiAl/K148 high temperature alloy diffusion welding method, and it is coating to γ-TiAl welding surface laser cladding Ni-Cr-Ti-Al that this method adopts weldering preceding, then spreads connection.When the overlay material is Ni
56Cr
7Ti
15Al
22The time, shearing strength of joint has reached 359MPa.Although this method makes joint obtain higher bonding strength, owing to need to adopt expensive laser cladding technology before the weldering, γ-TiAl is carried out surface modification, so complex technical process, manufacturing cost is higher.
Summary of the invention
In order to overcome the lower deficiency of prior art joint bonding strength, the invention provides the diffusion welding method that a kind of TiAl/Nb is alloy and Ni based high-temperature alloy, employing is the diffusion welding method that adds the Nb-Ni composite interlayer between alloy and the Ni based high-temperature alloy at TiAl/Nb, can improve the tensile strength and the shear strength of joint.
The technical solution adopted for the present invention to solve the technical problems: a kind of TiAl/Nb is the diffusion welding method of alloy and Ni based high-temperature alloy, is characterized in comprising the steps:
(a) getting thickness is that 10～30 μ m, purity are that Nb paper tinsel and the thickness of 99.9wt.% is that 10～20 μ m, purity are the Ni paper tinsel of 99.9wt.%, puts into acetone, after ultrasonic wave cleans 10～20s, and airing;
(b) handling TiAl/Nb is alloy and Ni based high-temperature alloy to be welded, and the surface roughness Ra value that two alloys are to be welded is put into acetone less than after 1.6, behind ultrasonic wave cleaning 5～10min, and airing;
(c) intermediate layer of Nb paper tinsel and the superimposed formation of Ni paper tinsel being placed TiAl/Nb is between alloy and the Ni based high-temperature alloy, and wherein the Nb paper tinsel is that alloy contacts with TiAl/Nb, and the Ni paper tinsel contacts with the Ni based high-temperature alloy, makes up welded piece;
(d) welded piece is positioned in the Vacuum diffusion bonding furnace between the seaming chuck and push-down head, places solder mask between alloy, push-down head and the Ni based high-temperature alloy at seaming chuck and TiAl/Nb; Welded piece is applied 0.5～1MPa precompression, when vacuum reaches 4.0 * 10
-3～6.0 * 10
-3During Pa, with the 10 ℃/min rate of heat addition, make when temperature rises to 950～1100 ℃ in the Vacuum diffusion bonding furnace and apply the axial compressive force of 15～30MPa, and be incubated 60～120min, with the stove cooling, the axial compressive force that applies in the cooling procedure remains unchanged.
The invention has the beneficial effects as follows: owing to adopted at TiAl/Nb is the diffusion welding method that adds the Nb-Ni composite interlayer between alloy and the Ni based high-temperature alloy, making does not have hard crisp generation mutually on the linkage interface, and the tensile strength of joint is brought up to 516～750MPa by the 183MPa of prior art; The shear strength of joint is brought up to 372～528MPa by the 359MPa of prior art.
Below in conjunction with drawings and Examples the present invention is elaborated.
Description of drawings
Accompanying drawing is that TiAl/Nb of the present invention is that the diffusion welding method of alloy and Ni based high-temperature alloy is with the structure that is installed.
Among the figure, the 1-solder mask, the 2-Nb paper tinsel, the 3-intermediate layer, 4-seaming chuck, 5-TiAl/Nb are alloy, 6-Ni paper tinsel, 7-Ni based high-temperature alloy, 8-push-down head.
The specific embodiment
Following examples are with reference to accompanying drawing.
Embodiment 1:TiAl/Nb is the diffusion welding (DW) of alloy TiAl and Ni based high-temperature alloy GH710.
Nb paper tinsel and the thickness of getting thickness and be 10 μ m, purity and be 99.9wt.% are that 10 μ m, purity are the Ni paper tinsel of 99.9wt.%, put into acetone, and ultrasonic wave cleans 10s, airing.Adopt 1500
#SiC sand paper makes its surface roughness Ra value less than 1.6 to TiAl alloy and the polishing of GH710 high temperature alloy welding surface.Then TiAl alloy and GH710 high temperature alloy are put into acetone soln, ultrasonic wave cleans 5min, airing.Above-mentioned each material is installed: it is that wherein Nb paper tinsel 2 contacts with TiAl between alloy 5-TiAl and the Ni based high-temperature alloy 7-GH710 that the intermediate layer 3 that Nb paper tinsel 2, Ni paper tinsel 6 constituted places TiAl/Nb, and Ni paper tinsel 6 contacts with GH710, the structure welded piece.Welded piece is packed in the vacuum drying oven, and be positioned in the Vacuum diffusion bonding furnace between the seaming chuck 4 and push-down head 8 placement solder mask 1 between seaming chuck 4 and TiAl, push-down head 8 and GH710.Welded piece is applied the 0.5MPa precompression, close fire door, vacuumize.When vacuum reaches 6.0 * 10
-3During Pa, begin heating, the rate of heat addition is 10 ℃/min, applies the axial compressive force of 30MPa when temperature rises to 950 ℃, and insulation 120min, and with the stove cooling, the axial compressive force that applies in the cooling procedure remains unchanged.
After tested, the tensile strength of joint is 516MPa, and the shear strength of joint is 372MPa.
Embodiment 2:TiAl/Nb is alloy Ti
3The diffusion welding (DW) of Al and Ni based high-temperature alloy GH4133.
Nb paper tinsel and the thickness of getting thickness and be 15 μ m, purity and be 99.9wt.% are that 15 μ m, purity are the Ni paper tinsel of 99.9wt.%, put into acetone, and ultrasonic wave cleans 15s, airing.Adopt 1500
#SiC sand paper is to Ti
3Al alloy and the polishing of GH710 high temperature alloy welding surface make its surface roughness Ra value less than 1.6.Then with Ti
3Al alloy and GH710 high temperature alloy are put into acetone soln, and ultrasonic wave cleans 7min, airing.Above-mentioned each material is installed: it is alloy 5-Ti that the intermediate layer 3 that Nb paper tinsel 2, Ni paper tinsel 6 constituted places TiAl/Nb
3Between Al and the Ni based high-temperature alloy 7-GH710, wherein Nb paper tinsel 2 and Ti
3The Al contact, Ni paper tinsel 6 contacts with GH710, makes up welded piece.Welded piece is packed in the vacuum drying oven, and be positioned in the Vacuum diffusion bonding furnace between the seaming chuck 4 and push-down head 8, at seaming chuck 4 and Ti
3Place solder mask 1 between Al, push-down head 8 and the GH710.Welded piece is applied the 0.7MPa precompression, close fire door, vacuumize.When vacuum reaches 5.0 * 10
-3During Pa, begin heating, the rate of heat addition is 9 ℃/min, applies the axial compressive force of 25MPa when temperature rises to 1100 ℃, and insulation 100min, and with the stove cooling, the axial compressive force that applies in the cooling procedure remains unchanged.
After tested, the tensile strength of joint is 568MPa, and the shear strength of joint is 420MPa.
Embodiment 3:TiAl/Nb is alloy Ti
2The diffusion welding (DW) of AlNb and Ni based high-temperature alloy GH4169.
Nb paper tinsel and the thickness of getting thickness and be 20 μ m, purity and be 99.9wt.% are that 15 μ m, purity are the Ni paper tinsel of 99.9wt.%, put into acetone, and ultrasonic wave cleans 15s, airing.Adopt 1500
#SiC sand paper is to Ti
3Al alloy and the polishing of GH710 high temperature alloy welding surface make its surface roughness Ra value less than 1.6.Then with Ti
3Al alloy and GH710 high temperature alloy are put into acetone soln, and ultrasonic wave cleans 9min, airing.Above-mentioned each material is installed: it is alloy 5-Ti that the intermediate layer 3 that Nb paper tinsel 2, Ni paper tinsel 6 constituted places TiAl/Nb
3Between Al and the Ni based high-temperature alloy 7-GH710, wherein Nb paper tinsel 2 and Ti
3The Al contact, Ni paper tinsel 6 contacts with GH710, makes up welded piece.Welded piece is packed in the vacuum drying oven, and be positioned in the Vacuum diffusion bonding furnace between the seaming chuck 4 and push-down head 8, at seaming chuck 4 and Ti
3Place solder mask 1 between Al, push-down head 8 and the GH710.Welded piece is applied the 0.9MPa precompression, close fire door, vacuumize.When vacuum reaches 5.0 * 10
-3During Pa, begin heating, the rate of heat addition is 11 ℃/min, applies the axial compressive force of 20MPa when temperature rises to 1000 ℃, and insulation 80min, and with the stove cooling, the axial compressive force that applies in the cooling procedure remains unchanged.
After tested, the tensile strength of joint is 750MPa, and the shear strength of joint is 528MPa.
Embodiment 4:TiAl/Nb is alloy Ti
2The diffusion welding (DW) of AlNb and Ni based high-temperature alloy GH761.
Nb paper tinsel and the thickness of getting thickness and be 30 μ m, purity and be 99.9wt.% are that 20 μ m, purity are the Ni paper tinsel of 99.9wt.%, put into acetone, and ultrasonic wave cleans 20s, airing.Adopt 1500
#SiC sand paper is to Ti
3Al alloy and the polishing of GH710 high temperature alloy welding surface make its surface roughness Ra value less than 1.6.Then with Ti
3Al alloy and GH710 high temperature alloy are put into acetone soln, and ultrasonic wave cleans 10min, airing.Above-mentioned each material is installed: it is alloy 5-Ti that the intermediate layer 3 that Nb paper tinsel 2, Ni paper tinsel 6 constituted places TiAl/Nb
3Between Al and the Ni based high-temperature alloy 7-GH710, wherein Nb paper tinsel 2 and Ti
3The Al contact, Ni paper tinsel 6 contacts with GH710, makes up welded piece.Welded piece is packed in the vacuum drying oven, and be positioned in the Vacuum diffusion bonding furnace between the seaming chuck 4 and push-down head 8, at seaming chuck 4 and Ti
3Place solder mask 1 between Al, push-down head 8 and the GH710.Welded piece is applied the 1MPa precompression, close fire door, vacuumize.When vacuum reaches 4.0 * 10
-3During Pa, begin heating, the rate of heat addition is 12 ℃/min, applies the axial compressive force of 15MPa when temperature rises to 1050 ℃, and insulation 60min, and with the stove cooling, the axial compressive force that applies in the cooling procedure remains unchanged.
After tested, the tensile strength of joint is 718MPa, and the shear strength of joint is 502MPa.
Claims (1)
1, a kind of TiAl/Nb is the diffusion welding method of alloy and Ni based high-temperature alloy, it is characterized in that comprising the steps:
(a) getting thickness is that 10～30 μ m, purity are that Nb paper tinsel and the thickness of 99.9wt.% is that 10～20 μ m, purity are the Ni paper tinsel of 99.9wt.%, puts into acetone, after ultrasonic wave cleans 10～20s, and airing;
(b) handling TiAl/Nb is alloy and Ni based high-temperature alloy to be welded, and the surface roughness Ra value that two alloys are to be welded is put into acetone less than after 1.6, behind ultrasonic wave cleaning 5～10min, and airing;
(c) intermediate layer of Nb paper tinsel and the superimposed formation of Ni paper tinsel being placed TiAl/Nb is between alloy and the Ni based high-temperature alloy, and wherein the Nb paper tinsel is that alloy contacts with TiAl/Nb, and the Ni paper tinsel contacts with the Ni based high-temperature alloy, makes up welded piece;
(d) welded piece is positioned in the Vacuum diffusion bonding furnace between the seaming chuck and push-down head, places solder mask between alloy, push-down head and the Ni based high-temperature alloy at seaming chuck and TiAl/Nb; Welded piece is applied 0.5～1MPa precompression, when vacuum reaches 4.0 * 10
-3～6.0 * 10
-3During Pa, with the 10 ℃/min rate of heat addition, make when temperature rises to 950～1100 ℃ in the Vacuum diffusion bonding furnace and apply the axial compressive force of 15～30MPa, and be incubated 60～120min, with the stove cooling, the axial compressive force that applies in the cooling procedure remains unchanged.
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| CNA2008101506053A CN101352772A (en) | 2008-08-13 | 2008-08-13 | Diffusion welding method of TiAl/Nb based alloy and Ni based high-temperature alloy |
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| CNA2008101506053A CN101352772A (en) | 2008-08-13 | 2008-08-13 | Diffusion welding method of TiAl/Nb based alloy and Ni based high-temperature alloy |
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| CN101972877A (en) * | 2010-11-03 | 2011-02-16 | 哈尔滨工业大学 | Contact reaction brazing connection method for TiAl based alloy and Ni based high-temperature alloy |
| CN102120281A (en) * | 2011-02-15 | 2011-07-13 | 洛阳双瑞精铸钛业有限公司 | Soldering method of rotor and steel shaft of titanium-aluminum turbocharger |
| CN101726545B (en) * | 2009-12-23 | 2011-11-23 | 哈尔滨工业大学 | Method for extracting time-frequency amplitude characteristic and time-frequency phase characteristic of ultrasonic signals on dissimilar material diffusion welding interface |
| CN102259217A (en) * | 2011-02-15 | 2011-11-30 | 洛阳双瑞精铸钛业有限公司 | Method for welding rotor and steel shaft of high-niobium titanium aluminum turbocharger |
| CN102343468A (en) * | 2011-02-15 | 2012-02-08 | 洛阳双瑞精铸钛业有限公司 | Welding method of rotor and steel shaft of titanium-aluminum alloy turbocharger |
| CN102513630A (en) * | 2011-12-20 | 2012-06-27 | 北京航科发动机控制系统科技有限公司 | Positioning and laminating method for steel plates of cleaning start valve |
| CN102650048A (en) * | 2012-05-22 | 2012-08-29 | 西北工业大学 | Method for preparing hydroxyapatite composite gradient coating on surface of titanium alloy |
| CN102699467A (en) * | 2012-06-25 | 2012-10-03 | 镇江忆诺唯记忆合金有限公司 | New method for welding ZL203 aluminum alloy on preset magnesium-based amorphous intermediate layer |
| CN103173657A (en) * | 2013-03-11 | 2013-06-26 | 中国航空工业集团公司北京航空材料研究院 | Intermediate layer for brazing connection of Ti3Al-based alloy and high-temperature alloy honeycomb structure |
| CN103214260A (en) * | 2013-04-22 | 2013-07-24 | 哈尔滨工业大学 | Method for performing diffusion bonding on DD3 high-temperature alloy and Ti3AlC2 ceramic by adopting Nb/Ni composite middle layer |
| US20160023439A1 (en) * | 2014-07-22 | 2016-01-28 | General Electric Company | Method for joining high temperature materials and articles made therewith |
| CN105290408A (en) * | 2015-10-12 | 2016-02-03 | 天津大学 | Connecting technology of immiscible metal adopting nano-sintering powder film as intermediate layer |
| CN105382406A (en) * | 2015-12-04 | 2016-03-09 | 南京理工大学 | Connecting method for TiAl-Ni dissimilar metal |
| CN105537750A (en) * | 2016-01-20 | 2016-05-04 | 天津大学 | High-strength connection process for copper-niobium rodlike metals under non-vacuum low-pressure condition |
| CN105665918A (en) * | 2016-03-24 | 2016-06-15 | 西安智拓精密焊接科技有限公司 | Diffusion welding method for improving strength of GH4099 welding joints |
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| CN105834540A (en) * | 2016-05-24 | 2016-08-10 | 哈尔滨工业大学（威海） | Method for brazing TZM alloy by means of Ti-Ni high-temperature brazing filler metal |
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| CN101726545B (en) * | 2009-12-23 | 2011-11-23 | 哈尔滨工业大学 | Method for extracting time-frequency amplitude characteristic and time-frequency phase characteristic of ultrasonic signals on dissimilar material diffusion welding interface |
| CN101972877B (en) * | 2010-11-03 | 2012-07-25 | 哈尔滨工业大学 | Contact reaction brazing connection method for TiAl based alloy and Ni based high-temperature alloy |
| CN101972877A (en) * | 2010-11-03 | 2011-02-16 | 哈尔滨工业大学 | Contact reaction brazing connection method for TiAl based alloy and Ni based high-temperature alloy |
| CN102120281A (en) * | 2011-02-15 | 2011-07-13 | 洛阳双瑞精铸钛业有限公司 | Soldering method of rotor and steel shaft of titanium-aluminum turbocharger |
| CN102259217A (en) * | 2011-02-15 | 2011-11-30 | 洛阳双瑞精铸钛业有限公司 | Method for welding rotor and steel shaft of high-niobium titanium aluminum turbocharger |
| CN102343468A (en) * | 2011-02-15 | 2012-02-08 | 洛阳双瑞精铸钛业有限公司 | Welding method of rotor and steel shaft of titanium-aluminum alloy turbocharger |
| CN102513630B (en) * | 2011-12-20 | 2013-09-11 | 北京航科发动机控制系统科技有限公司 | Positioning and laminating method for steel plates of cleaning start valve |
| CN102513630A (en) * | 2011-12-20 | 2012-06-27 | 北京航科发动机控制系统科技有限公司 | Positioning and laminating method for steel plates of cleaning start valve |
| CN102650048A (en) * | 2012-05-22 | 2012-08-29 | 西北工业大学 | Method for preparing hydroxyapatite composite gradient coating on surface of titanium alloy |
| CN102699467A (en) * | 2012-06-25 | 2012-10-03 | 镇江忆诺唯记忆合金有限公司 | New method for welding ZL203 aluminum alloy on preset magnesium-based amorphous intermediate layer |
| CN103173657A (en) * | 2013-03-11 | 2013-06-26 | 中国航空工业集团公司北京航空材料研究院 | Intermediate layer for brazing connection of Ti3Al-based alloy and high-temperature alloy honeycomb structure |
| CN103214260B (en) * | 2013-04-22 | 2014-08-20 | 哈尔滨工业大学 | Method for performing diffusion bonding on DD3 high-temperature alloy and Ti3AlC2 ceramic by adopting Nb/Ni composite middle layer |
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| CN105382406A (en) * | 2015-12-04 | 2016-03-09 | 南京理工大学 | Connecting method for TiAl-Ni dissimilar metal |
| CN105537750A (en) * | 2016-01-20 | 2016-05-04 | 天津大学 | High-strength connection process for copper-niobium rodlike metals under non-vacuum low-pressure condition |
| CN105665918B (en) * | 2016-03-24 | 2018-02-16 | 陕西智拓固相增材制造技术有限公司 | A kind of diffusion welding method of raising GH4099 strength of welded joint |
| CN105665918A (en) * | 2016-03-24 | 2016-06-15 | 西安智拓精密焊接科技有限公司 | Diffusion welding method for improving strength of GH4099 welding joints |
| CN105798449A (en) * | 2016-05-24 | 2016-07-27 | 哈尔滨工业大学（威海） | Method for diffusion connection of high-niobium TiAl alloy by using composite metal foil |
| CN105834540A (en) * | 2016-05-24 | 2016-08-10 | 哈尔滨工业大学（威海） | Method for brazing TZM alloy by means of Ti-Ni high-temperature brazing filler metal |
| CN105834540B (en) * | 2016-05-24 | 2019-02-12 | 哈尔滨工业大学（威海） | A kind of method of Ti-Ni high-temp solder soldering TZM alloy |
| CN109175659A (en) * | 2018-10-31 | 2019-01-11 | 天津重型装备工程研究有限公司 | A kind of metal composite products combination interface localization method |
| CN109175659B (en) * | 2018-10-31 | 2020-09-25 | 天津重型装备工程研究有限公司 | Method for positioning bonding interface of metal composite product |
| CN116984725A (en) * | 2023-09-27 | 2023-11-03 | 中国航发沈阳黎明航空发动机有限责任公司 | FGH98 alloy diffusion welding method added with pure nickel foil interlayer |
| CN116984725B (en) * | 2023-09-27 | 2023-12-01 | 中国航发沈阳黎明航空发动机有限责任公司 | FGH98 alloy diffusion welding method added with pure nickel foil interlayer |
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Open date: 20090128 |