CN102909483A - Iron-, cobalt-, nickel- and chrome-base solder for brazing of TiAl and nickel-base superalloy - Google Patents
Iron-, cobalt-, nickel- and chrome-base solder for brazing of TiAl and nickel-base superalloy Download PDFInfo
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- CN102909483A CN102909483A CN2012104102626A CN201210410262A CN102909483A CN 102909483 A CN102909483 A CN 102909483A CN 2012104102626 A CN2012104102626 A CN 2012104102626A CN 201210410262 A CN201210410262 A CN 201210410262A CN 102909483 A CN102909483 A CN 102909483A
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Abstract
The invention relates to iron-, cobalt-, nickel- and chrome-base solder for brazing of TiAl and nickel-base superalloy. The iron-, cobalt-, nickel- and chrome-base solder for brazing of TiAl and nickel-base superalloy comprises, by weight percent, 10.0-15.8% of Ni, 6.0-14.0% of Co, 6.0-14.0% of Cr, 1.5-6.5% of Si, 0.5-3.5% of B and the balance of Fe, or comprises, by weight percent, 15.0-26.0% of Co, 15.9-21.0% of Ni, 15.0-22.0% of Cr, 1.5-5.5% of Si, 0.5-3.5% of B and the balance of Fe. The solder forms a TiAl and nickel-base high-temperature alloy joint at the brazing temperature of 1160-1200 DEG C, and the brazing joint reaches 286-320MPa in shear strength at room temperature and 246-290Mpa in shear strength at 760 DEG C. The solder is applicable to connection of TiAl and nickel-base superalloy.
Description
Technical field
The present invention is a kind of iron-cobalt for TiAl and nickel base superalloy soldering-nickel-chromium base solder, belongs to welding technology field.
Background technology
The TiAl alloy has low-density, high specific strength, good high-temperature oxidation resistant, creep-resistant property, it is the lightening fire resistant structural material that has very much development prospect, be acknowledged as the alternative materials of titanium alloy and high temperature alloy, have a good application prospect in fields such as Aeronautics and Astronautics, automobiles.For the TiAl alloy, in order to enlarge its through engineering approaches range of application, the solder technology particularly major issue that will seem.Comprising being connected of TiAl alloy self and TiAl alloy and other metal.Soldering is a kind of method that is suitable for connecting the TiAl alloy.The outer soldering research to the TiAl alloy of Present Domestic mainly concentrates on and himself connects, and is connected connection with steel for being mainly TiAl alloy and being connected of other metal TiAl, and TiAl is connected the rarely found report of connection with high temperature alloy.
Domestic Chen Bo adopts Ti-15Cu-15Ni solder brazing TiAl/42CrMo steel, and the joint average tensile strength is 95MPa.(Chen Bo, the bear Warburg Pincus, hair only, Cheng Yaoyong, Ye Lei, Wu Xin. adopt the TiAl/42CrMo steel joint microstructure of Ti-15Cu-15Ni solder and form mechanism. aeronautical material journal, 2006,26 (3): 317-318.) Liu Huijie adopts Ag-Cu-Ti solder brazing TiAl/40Cr steel, and joint room temperature shear strength is 170MPa.(Liu?Huijie,Feng?Jicai?Microstructure?and?strengthof?vacuum?brazed?joints?of?TiAl-based?alloy?to?40Cr?steel.Materials?Scienceand?Technology,2002,18(9):1049-
1051.)。Li Zhuoran adopts Ag-Cu solder and Ti-Zr-Ni-Cu solder that TiAl and Ti alloy have been carried out the vacuum brazing discovery, adopts Ag-Cu solder shearing strength of joint when the soldering standard is 950 ° of C/10min to reach 223.3MPa; Adopt Ti-Zr-Ni-Cu solder shearing strength of joint when the soldering standard is 850 ° of C/10min to reach 139.97MPa.(Li Zhuoran, Cao Jian, Feng Jicai, Wang Jiahong, the vacuum brazing of being permitted osmanthus method .TiAl base alloy and Ti alloy. welding, 2006,3:51-54.).
Seen that patent report adds the Ti paper tinsel and utilizes the contact reaction brazing method between TiAl alloy and Ni based high-temperature alloy, the joint room temperature shear strength 240 ~ 300MPa of acquisition, 800 ° of C shear strength 180 ~ 210MPa.(Lin Tiesong, He Peng, Li Haixin, the contact reaction brazing method of attachment of Liu Yu .TiAl base alloy and Ni based high-temperature alloy, publication number: CN 101972877A)
Summary of the invention
The present invention is just for the situation of above-mentioned prior art and design a kind of iron-cobalt for TiAl and nickel base superalloy soldering-nickel-chromium base solder is provided, its objective is the soldering of TiAl alloy and nickel base superalloy is furtherd investigate, improve junction chamber, high-temperature behavior, widen the engineering application of TiAl alloy.
The objective of the invention is to be achieved through the following technical solutions:
Technical solution of the present invention has proposed a kind of iron-cobalt for TiAl and nickel base superalloy soldering-nickel-chromium base solder, and it is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Ni:10.0～15.8, Co:6.0～14.0, Cr:6.0～14.0, Si:1.5～6.5, B:0.5～3.5, Fe: surplus, or Co:15.0～26.0, Ni:15.9～21.0, Cr:15.0～22.0, Si:1.5～5.5, B:0.5～3.5, Fe: surplus.
The described solder of technical solution of the present invention can guarantee the high-temperature behavior of solder take Fe, Cr, Co, Ni element as matrix.Add suitable Si, B and fall molten element, can obtain the solder of suitable fusion temperature.By reducing in the solder content with the violent Ni element of Ti element reaction, increase Fe, Cr, Co constituent content, Fe, Cr, Co element and Ti element reaction degree than Ni element and Ti element reaction degree a little less than, thereby reach the purpose of the control joint interface extent of reaction, avoid joint to generate too much frangible compounds phase.Matrix element Fe, Co in the solder, Cr position and the Ni in the periodic table of elements adjoins, and character is close, and solder can have good compatibility with the nickel base superalloy mother metal in brazing process.
Adding Si, B fall molten element and mainly contain two purposes: 1) adjust the molten temperature region of solder, make solder can improve joint performance when satisfying the brazing temperature requirement; 2) improve solder performance, suitably reduce Si, B element in the solder, can reduce the fragility phase in the solder, be conducive to the solder preparation, in brazing process, also can reduce the generation of fragility phase in the joint simultaneously, improve joint performance.For this purpose, technical solution of the present invention has proposed the scheme of following four kinds of chemical analysis and percentage by weight, is respectively: Ni:10.0～15.8, Co:6.0～14.0, Cr:6.0～14.0, Si:1.5～6.5, B:1.5～2.5, Fe: surplus, Ni:10.0～15.8, Co:6.0～14.0, Cr:6.0～14.0, Si:3.5～5.0, B:1.5～2.5, Fe: surplus, Co:15.0～26.0, Ni:15.9～21.0, Cr:15.0～22.0, Si:1.5～5.5, B:1.5～3.0, Fe: surplus and Co:15.0～26.0, Ni:15.9～21.0, Cr:15.0～22.0, Si:2.5～4.5, B:1.5～3.0, Fe: surplus.
This patent solder is compared with Ag base, the basic solder of Ti take Fe, Co, Cr, Ni element as matrix, and the cost of raw material obviously reduces, and effectively reduces the solder production cost.For utilizing this solder to carry out also can significantly reducing production costs for the soldering production.
Description of drawings
Fig. 1 is the photo of the joint microstructure of employing technical solution of the present invention solder brazing TiAl/ nickel base superalloy GH536
The specific embodiment
Below with reference to embodiment technical solution of the present invention is further described:
Composition and percentage by weight that table 1 has provided the described solder of technical solution of the present invention form.
Composition and the percentage by weight of the described solder of table 1 technical solution of the present invention
The method for preparing above-mentioned solder is; at first after adopting the electric arc melting method that this solder raw material is taken by weighing by proportioning under the argon shield condition, be smelted into alloy pig; raw material is that purity is not less than 99.0% high-purity N i, Co, Cr, Si, B, Fe, then uses one of following method preparation solder:
(1) adopt argon gas powder by atomization equipment to prepare Powdered solder;
(2) under the argon shield condition, adopt chilling attitude foil Preparation equipment to prepare chilling foil solder, for the single-roller method rapid solidification, single roller needs the high-speed rotation with 1000～10000r/min, and cooldown rate was between 103～106K/s after the fusing of solder ingot bar formed liquid state;
(3) adopt electric spark wire cutting method to cut out thin slice from alloy pig, again with thin slice positive and negative mechanical polishing;
(4) be rolled into the brazing filler metal alloy composite band with design mix by two or three kind of simple alloy thin band of composition;
(5) by alloy pig by repeatedly room temperature rolling, process of thermal treatment are directly made alloy strip steel rolled stock.
The method of using above-mentioned solder to carry out soldering is:
(1) assembling, carry out assembling between the TiAl/ nickel base superalloy GH536 material according to the requirement of jointing, between the linkage interface of TiAl/ nickel base superalloy GH536 material, add Powdered solder or chilling foil solder or the solder thin slice that cuts out from alloy pig or two or three kind of rolling solder composite strip that forms of simple composition alloy combination or the brazing filler metal alloy band that formed by the alloy pig Direct Rolling;
(2) heating; put into vacuum furnace together with anchor clamps after the weldment assembling, be heated to the connection of carrying out TiAl/ nickel base superalloy GH536 material plug under 1030oC～1070oC brazing temperature, insulation; cool to room temperature with the furnace, mode of heating also can adopt the gas shield eddy-current heating again.
Adopt the composition solder of the embodiment 1～30 shown in the table 1, respectively with alloyed powder powder solder form, brazing filler metal alloy composite rolling band, chilling foil, from the brazing filler metal alloy ingot cut out the solder thin slice, the brazing filler metal alloy band uses, under the brazing temperature of 1160oC～1200oC, carried out the connection of TiAl/GH536 joint, the room temperature shear strength of corresponding soldered fitting reaches 286～320MPa, and the 760oC shear strength reaches 246～290MPa.Strength of joint can be kept more than 85% of joint room temperature strength under 760oC.TiAl and the nickel base superalloy soldered fitting room temperature shear strength of appearing in the newspapers is 240 ~ 300MPa, 800oC shear strength 180 ~ 210MPa.It is about 12% that this patent solder brazing joint average room temperature strength ratio has reported that joint average room temperature intensity improves, and the average high temperature strength ratio of joint has reported that the average elevated temperature strength of joint improves about 37%.Adopt this patent soldered fitting elevated temperature strength to be significantly improved.
By Mechanics Performance Testing, adopt the composition solder of the embodiment 1～30 shown in the table 1, respectively with alloyed powder powder solder form, brazing filler metal alloy composite rolling band, chilling foil, from the brazing filler metal alloy ingot cut out the solder thin slice, the brazing filler metal alloy band uses, under the brazing temperature of 1160oC～1200oC, carried out the connection of TiAl/GH536, corresponding soldered fitting room temperature shear strength reaches 286～320MPa, and the 760oC shear strength reaches 246～290MPa.Strength of joint can be kept more than 85% of joint room temperature strength under 760oC.TiAl and the nickel base superalloy soldered fitting room temperature shear strength of appearing in the newspapers is 240 ~ 300MPa, 800oC shear strength 180 ~ 210MPa.It is about 12% that this patent solder brazing joint average room temperature strength ratio has reported that joint average room temperature intensity improves, and the average high temperature strength ratio of joint has reported that the average elevated temperature strength of joint improves about 37%.Adopt this patent solder brazing joint elevated temperature strength to be significantly improved.
Table 2 has provided technical solution of the present invention part embodiment soldering TiAl/GH536 joint mechanical property.Comparative example 3,9., 15 and 22,26,30 joint mechanical property finds, as Si in the solder, when the B constituent content reduces, junction chamber, shear at high temperature intensity all increase.
Table 2 part embodiment soldering TiAl/GH536 joint mechanical property
Can find out that from accompanying drawing 1 joint microstructure is continuously fine and close, weld seam and mother metal have reached good metallurgical binding.Joint is mainly multi-form solid solution matrix, and weld seam has the conversion zone of two-layer narrower in width near the TiAl side.
Claims (5)
1. iron-the cobalt that is used for TiAl and nickel base superalloy soldering-nickel-chromium base solder, it is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Ni:10.0～15.8, Co:6.0～14.0, Cr:6.0～14.0, Si:1.5～6.5, B:0.5～3.5, Fe: surplus, or Co:15.0～26.0, Ni:15.9～21.0, Cr:15.0～22.0, Si:1.5～5.5, B:0.5～3.5, Fe: surplus.
2. iron-the cobalt for TiAl and nickel base superalloy soldering according to claim 1-nickel-chromium base solder, it is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Ni:10.0～15.8, Co:6.0～14.0, Cr:6.0～14.0, Si:1.5～6.5, B:1.5～2.5, Fe: surplus.
3. iron-the cobalt for TiAl and nickel base superalloy soldering according to claim 1-nickel-chromium base solder, it is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Ni:10.0～15.8, Co:6.0～14.0, Cr:6.0～14.0, Si:3.5～5.0, B:1.5～2.5, Fe: surplus.
4. iron-the cobalt for TiAl and nickel base superalloy soldering according to claim 1-nickel-chromium base solder, it is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Co:15.0～26.0, Ni:15.9～21.0, Cr:15.0～22.0, Si:1.5～5.5, B:1.5～3.0, Fe: surplus.
5. iron-the cobalt for TiAl and nickel base superalloy soldering according to claim 1-nickel-chromium base solder is characterized in that: Co:15.0～26.0, Ni:15.9～21.0, Cr:15.0～22.0, Si:2.5～4.5, B:1.5～3.0, Fe: surplus.
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| CN2012104102626A CN102909483A (en) | 2012-10-24 | 2012-10-24 | Iron-, cobalt-, nickel- and chrome-base solder for brazing of TiAl and nickel-base superalloy |
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| CN2012104102626A CN102909483A (en) | 2012-10-24 | 2012-10-24 | Iron-, cobalt-, nickel- and chrome-base solder for brazing of TiAl and nickel-base superalloy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604861A (en) * | 2018-11-16 | 2019-04-12 | 南京理工大学 | For connecting the iron-based solder of TiAl alloy Yu Ni based high-temperature alloy |
| CN109604864A (en) * | 2018-11-16 | 2019-04-12 | 南京理工大学 | For connecting the titanium based solder of TiAl alloy Yu Ni based high-temperature alloy |
| CN111085796A (en) * | 2019-12-13 | 2020-05-01 | 西安交通大学 | Fe-based multielement active high-temperature brazing filler metal for carbon fiber reinforced ceramic matrix composite |
| CN112222675A (en) * | 2020-09-23 | 2021-01-15 | 中国航发北京航空材料研究院 | High-entropy alloy brazing filler metal and preparation method thereof |
| CN114293147A (en) * | 2021-11-16 | 2022-04-08 | 南京航空航天大学 | Nickel-based high-temperature alloy material and preparation method thereof |
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| US4216015A (en) * | 1979-04-09 | 1980-08-05 | Cabot Corporation | Wear-resistant iron-nickel-cobalt alloys |
| US4515870A (en) * | 1981-07-22 | 1985-05-07 | Allied Corporation | Homogeneous, ductile iron based hardfacing foils |
| JPS61270302A (en) * | 1985-05-23 | 1986-11-29 | Shintou Bureetaa Kk | Self-fluxing iron alloy powder |
| CN101100023A (en) * | 2006-07-06 | 2008-01-09 | 苏舍美特科（美国）公司 | Iron-based braze filler metal for high-temperature applications |
| US20110020166A1 (en) * | 2008-04-18 | 2011-01-27 | Katsunori Otobe | Iron-base heat- and corrosion-resistant brazing material |
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2012
- 2012-10-24 CN CN2012104102626A patent/CN102909483A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216015A (en) * | 1979-04-09 | 1980-08-05 | Cabot Corporation | Wear-resistant iron-nickel-cobalt alloys |
| US4515870A (en) * | 1981-07-22 | 1985-05-07 | Allied Corporation | Homogeneous, ductile iron based hardfacing foils |
| JPS61270302A (en) * | 1985-05-23 | 1986-11-29 | Shintou Bureetaa Kk | Self-fluxing iron alloy powder |
| CN101100023A (en) * | 2006-07-06 | 2008-01-09 | 苏舍美特科（美国）公司 | Iron-based braze filler metal for high-temperature applications |
| US20110020166A1 (en) * | 2008-04-18 | 2011-01-27 | Katsunori Otobe | Iron-base heat- and corrosion-resistant brazing material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604861A (en) * | 2018-11-16 | 2019-04-12 | 南京理工大学 | For connecting the iron-based solder of TiAl alloy Yu Ni based high-temperature alloy |
| CN109604864A (en) * | 2018-11-16 | 2019-04-12 | 南京理工大学 | For connecting the titanium based solder of TiAl alloy Yu Ni based high-temperature alloy |
| CN111085796A (en) * | 2019-12-13 | 2020-05-01 | 西安交通大学 | Fe-based multielement active high-temperature brazing filler metal for carbon fiber reinforced ceramic matrix composite |
| CN112222675A (en) * | 2020-09-23 | 2021-01-15 | 中国航发北京航空材料研究院 | High-entropy alloy brazing filler metal and preparation method thereof |
| CN114293147A (en) * | 2021-11-16 | 2022-04-08 | 南京航空航天大学 | Nickel-based high-temperature alloy material and preparation method thereof |
| CN114293147B (en) * | 2021-11-16 | 2022-10-11 | 南京航空航天大学 | Nickel-based high-temperature alloy material and preparation method thereof |
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Application publication date: 20130206 |