CN102909491A - Titanium-zirconium-iron-based brazing filler metal for Ti3Al and nickel-based high-temperature alloy braze welding - Google Patents

Titanium-zirconium-iron-based brazing filler metal for Ti3Al and nickel-based high-temperature alloy braze welding Download PDF

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CN102909491A
CN102909491A CN2012104109729A CN201210410972A CN102909491A CN 102909491 A CN102909491 A CN 102909491A CN 2012104109729 A CN2012104109729 A CN 2012104109729A CN 201210410972 A CN201210410972 A CN 201210410972A CN 102909491 A CN102909491 A CN 102909491A
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solder
titanium
zirconium
iron
ti3al
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叶雷
熊华平
李晓红
陈波
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BEIJING INSTITUTE OF AERONAUTICAL MATERIALS CHINA AVIATION INDUSTRY GROUP Corp
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BEIJING INSTITUTE OF AERONAUTICAL MATERIALS CHINA AVIATION INDUSTRY GROUP Corp
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Abstract

The invention relates to a titanium-zirconium-iron-based brazing filler metal for Ti3Al and nickel-based high-temperature alloy braze welding. The titanium-zirconium-iron-based brazing filler metal comprises the following chemical components in percent by weight: 20.0 to 30.0 percent of Zr, 7.0 to 12.9 percent of Fe, 2.0 to 8.0 percent of Cu, 2.0 to 6.0 percent of Ni, and the balance of Ti. By using the titanium-zirconium-iron-based brazing filler metal, a Ti3Al and nickel-based high-temperature alloy joint is acquired at a brazing temperature of 1,030 to 1,070 DEG C, and the room temperature shearing strength corresponding to a brazed joint reaches 290 to 370MPa. The joint structure is compact and continuous, so that excellent metallurgical bonding of a welding seam and a base metal is achieved. The titanium-zirconium-iron-based brazing filler metal is suitable for connection of Ti3Al and nickel-based high-temperature alloys.

Description

Be used for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder
Technical field
The present invention is a kind of for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder belongs to welding technology field.
Background technology
Ti 3The Al alloy has low-density, high specific strength, good high-temperature oxidation resistant, creep-resistant property, is the lightening fire resistant structural material that has very much development prospect.It is suitable with common alloy of titanium density, and has higher operating temperature, and compares with nickel base superalloy, and its density is very low again, so Ti 3The Al alloy can replace the high-temperature component in titanium alloy and high temperature alloy such as the Aeronautics and Astronautics aircraft in a plurality of applications.
In order to enlarge Ti 3The through engineering approaches of Al alloy is used, and it is extremely important that solder technology seems, comprises Ti 3Al alloy self and Ti 3The Al alloy is connected with other metal.Soldering is a kind of Ti that is suitable for connecting 3The method of Al alloy.Present Domestic is outer to Ti 3On the soldering research of Al alloy mainly concentrates on and self connects.
Summary of the invention
The present invention is just at present to Ti 3Al is connected the deficiency of the less situation of research and existence and designs and provide a kind of for Ti with other metal 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder its objective is Ti 3The soldering of Al alloy and nickel base superalloy is furtherd investigate, and improves junction chamber, high-temperature behavior, widens Ti 3The engineering application of Al 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 for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Zr:20.0～30.0, Fe:7.0～12.9, Cu:2.0～8.0, Ni:2.0～6.0, Ti surplus.
This technical scheme is total scheme, and the described titanium-zirconium of this technical scheme-iron-based solder can be used for soldering Ti 3Al alloy and nickel base superalloy, on the basis that guarantees solder fusion temperature and solder performance, by reducing in the solder Cu violent with the Ti element reaction, the content of Ni element, suitably increase the Fe constituent content, Fe element and Ti element reaction degree than Cu, 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.
On the basis of above-mentioned total scheme, can be by further adjusting the content of Fe element, to reach further control solder and Ti 3The interfacial reaction degree of Al alloy, avoid generating too much Ti-Fe frangible compounds phase, reduce joint performance, the scheme of two chemical analysis and percentage by weight has been proposed for this purpose, be respectively: Zr:20.0～30.0, Fe:8.0～12.0, Cu:2.0～8.0, Ni:2.0～6.0, the Ti surplus.
On the basis of above-mentioned total scheme, can be by having adjusted the content of Cu, Ni element, purpose is to control the joint interface extent of reaction equally, avoid that joint generated Ti-Cu, Ti-Ni or Ti-Cu-Ni frangible compounds phase, reduce joint performance, the scheme of two chemical analysis and percentage by weight has been proposed for this purpose, be respectively: Zr:20.0～30.0, Fe:8.0～12.0, Cu:3.0～7.0, Ni:2.0～6.0, Ti surplus and Zr:20.0～30.0, Fe:8.0～12.0, Cu:3.0～7.0, Ni:3.0～5.0, the Ti surplus.
Because Cu, Ni element are more violent than Fe element with Ti element reaction degree, the this patent solder is compared with traditional Ti-13Zr-21Cu-9Ni and Ti-15Cu-15Ni solder, after the factor of having considered brazing filler metal alloy, significantly reduce Cu, Ni constituent content, reduce the frangible compounds phase that forms in the joint, thereby reached the purpose that improves joint performance.
This patent solder is compared with Ag base solder, and the cost of raw material obviously reduces.Compare with conventional Ti-13Zr-21Cu-9Ni or Ti-15Cu-15Ni solder, reduced the higher Cu of cost, Ni constituent content, and the Fe constituent content that raises the cost lower can reduce the solder production cost, for utilizing this solder to carry out also can reducing production costs for the soldering production.
Description of drawings
Fig. 1 is for adopting technical solution of the present invention solder brazing Ti 3The photo of the joint microstructure of Al/ 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
Figure BDA00002300470700031
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 Ti, Zr, Ni, Cu, 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 Ti3Al/ nickel base superalloy GH536 material according to the requirement of jointing, between the linkage interface of Ti3Al/ nickel base superalloy GH536 material, add Powdered solder or chilling foil solder or the solder thin slice that cuts out from alloy pig or by 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 Ti3Al/ 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.
By Mechanics Performance Testing, adopt the composition solder of the embodiment 1～20 shown in the table 1, respectively with alloyed powder powder solder form, brazing filler metal alloy composite rolling band, the chilling foil, cut out the solder thin slice from the brazing filler metal alloy ingot, the brazing filler metal alloy band uses, under the brazing temperature of 1030oC～1070oC, carried out the connection of Ti3Al/GH536 joint, the room temperature shear strength of corresponding soldered fitting reaches 290～370MPa, employing Ti-Cu-Ni-Cr powder brazing alloy soldering Ti3Al/GH536 joint room temperature shear strength 220MPa(Du Jing apparently higher than existing patent report, Kang Hui, Qu Shen etc. a kind of solder, publication number: CN 101439447A).Adopt conventional Ti-Zr-Cu-Ni and Ti-15Cu-15Ni solder soldering Ti3Al/GH536 under the 1050oC/5min condition to carry out the contrast of joint room temperature cutting performance, Ti-Zr-Cu-Ni solder connector room temperature cutting performance is 140 ~ 196MPa, and Ti-15Cu-15Ni joint room temperature cutting performance is 80 ~ 90MPa.Adopt Ag-Cu-Ti solder soldering Ti3Al/GH536 under the 880oC/10min condition to carry out the contrast of joint room-temperature property, joint room temperature shear strength is 125MPa.This patent solder brazing Ti3Al and nickel base superalloy joint room temperature strength are apparently higher than Ti-Zr-Cu-Ni, Ti-Cu-Ni and Ag-Cu-Ti solder brazing strength of joint.
Table 2 has provided technical solution of the present invention part embodiment soldering Ti3Al/GH536 joint mechanical property.Comparative example 19, the discovery of 20 joint mechanical properties, when Fe constituent content in the solder reduced, joint room temperature shear strength increased.Comparative example 8,14,19,20 joint mechanical properties, as Cu in the solder, when the Ni constituent content reduces, joint room temperature shear strength increases.
Table 2 part embodiment soldering Ti3Al/GH536 joint mechanical property
Figure BDA00002300470700041
Can find out from accompanying drawing 1, joint microstructure is continuously fine and close, and weld seam and mother metal have reached good metallurgical binding.Joint is mainly the grey matrix, is three layers of conversion zone that width is narrower at weld seam near the GH536 side.

Claims (4)

1. one kind is used for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Zr:20.0～30.0, Fe:7.0～12.9, Cu:2.0～8.0, Ni:2.0～6.0, Ti surplus.
2. according to claim 1 for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Zr:20.0～30.0, Fe:8.0～12.0, Cu:2.0～8.0, Ni:2.0～6.0, Ti surplus.
3. according to claim 1 for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder is characterized in that: the chemical analysis of this kind solder and percentage by weight are: Zr:20.0～30.0, Fe:8.0～12.0, Cu:3.0～7.0, Ni:2.0～6.0, Ti surplus.
4. according to claim 1 for Ti 3Titanium-the zirconium of Al and nickel base superalloy soldering-iron-based solder is characterized in that: Zr:20.0～30.0, Fe:8.0～12.0, Cu:3.0～7.0, Ni:3.0～5.0, Ti surplus.
CN2012104109729A 2012-10-24 2012-10-24 Titanium-zirconium-iron-based brazing filler metal for Ti3Al and nickel-based high-temperature alloy braze welding Pending CN102909491A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922172A (en) * 2012-10-24 2013-02-13 中国航空工业集团公司北京航空材料研究院 Titanium-zirconium-ferrum based solder for TiAl or Ti3Al alloy soldering
CN107999983A (en) * 2017-11-30 2018-05-08 吉林大学 Ti3Al based alloys and Ni based high-temperature alloy dissimilar material joining methods
CN111318778A (en) * 2018-12-17 2020-06-23 哈尔滨工业大学 Stepwise brazing method for toughening titanium alloy and high-temperature alloy brazed joint
CN111702277A (en) * 2020-05-13 2020-09-25 中国科学院金属研究所 Ti2Medium-temperature Ti-based brazing filler metal special for brazing same or different AlNb-based alloy materials and preparation method and brazing process thereof
CN114888388A (en) * 2022-06-20 2022-08-12 哈尔滨工业大学 Method for brazing titanium alloy and nickel-based superalloy

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JPS63309394A (en) * 1987-06-09 1988-12-16 Daido Steel Co Ltd Brazing material
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CN102689109A (en) * 2012-06-21 2012-09-26 哈尔滨工业大学 High-entropy brazing filler metal for brazing non-oxide ceramics and non-oxide ceramic composite material and preparation method of brazing filler metal

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JPS63309394A (en) * 1987-06-09 1988-12-16 Daido Steel Co Ltd Brazing material
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CN1695877A (en) * 2005-06-27 2005-11-16 中国航空工业第一集团公司北京航空材料研究院 Method for preparing powder of titanium based alloyl solder
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CN102689109A (en) * 2012-06-21 2012-09-26 哈尔滨工业大学 High-entropy brazing filler metal for brazing non-oxide ceramics and non-oxide ceramic composite material and preparation method of brazing filler metal

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922172A (en) * 2012-10-24 2013-02-13 中国航空工业集团公司北京航空材料研究院 Titanium-zirconium-ferrum based solder for TiAl or Ti3Al alloy soldering
CN107999983A (en) * 2017-11-30 2018-05-08 吉林大学 Ti3Al based alloys and Ni based high-temperature alloy dissimilar material joining methods
CN111318778A (en) * 2018-12-17 2020-06-23 哈尔滨工业大学 Stepwise brazing method for toughening titanium alloy and high-temperature alloy brazed joint
CN111702277A (en) * 2020-05-13 2020-09-25 中国科学院金属研究所 Ti2Medium-temperature Ti-based brazing filler metal special for brazing same or different AlNb-based alloy materials and preparation method and brazing process thereof
CN111702277B (en) * 2020-05-13 2021-10-22 中国科学院金属研究所 Ti2Medium-temperature Ti-based brazing filler metal special for brazing same or different AlNb-based alloy materials and preparation method and brazing process thereof
CN114888388A (en) * 2022-06-20 2022-08-12 哈尔滨工业大学 Method for brazing titanium alloy and nickel-based superalloy
CN114888388B (en) * 2022-06-20 2023-05-02 哈尔滨工业大学 Method for brazing titanium alloy and nickel-based superalloy

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Application publication date: 20130206