CN108687461A - A kind of titanium-based amorphous alloy cored solder and preparation method thereof - Google Patents

A kind of titanium-based amorphous alloy cored solder and preparation method thereof Download PDF

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Publication number
CN108687461A
CN108687461A CN201710227623.6A CN201710227623A CN108687461A CN 108687461 A CN108687461 A CN 108687461A CN 201710227623 A CN201710227623 A CN 201710227623A CN 108687461 A CN108687461 A CN 108687461A
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titanium
alloy
based amorphous
cored solder
amorphous alloy
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朱胜利
张慧慧
崔振铎
杨贤金
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Tianjin University
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Tianjin University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Ceramic Products (AREA)

Abstract

The present invention discloses a kind of titanium-based amorphous alloy cored solder and preparation method thereof, it is prepared using vacuum melting and single roller chilling method, it is made of element titanium, copper, zirconium and M, the atomic percentage content that the atomic percentage content that the atomic percentage content of Ti is 30~70%, Cu is 20~30%, Zr is 10~25%, the atomic percentage content of M is 8% or less, M is C, Si, Ge, Sn or Pb, and fusing point is 800~900 DEG C, meets the condition due to being brazed titanium alloy;Titanium based solder has good wetability and mobility in brazing process, and solder, which is more rapidly and uniformly sprawled to be more advantageous on base material, obtains even tissue densification, and the high soldered fitting of bond strength can be used for the soldering of pure titanium and titanium alloy.

Description

A kind of titanium-based amorphous alloy cored solder and preparation method thereof
Technical field
The present invention relates to titanium alloy brazing material fields, more particularly to a kind of to have low melting point, good wetability and stream The titanium-based multicomponent amorphous cored solder and preparation method thereof of dynamic property.
Background technology
The performance of the titanium alloy to being applied to Aeronautics and Astronautics field proposes increasingly higher demands in recent years, welds skill The research of art receives the extensive concern of researcher.Non-crystaline amorphous metal is a kind of metastable material, can speed up atom at high temperature Diffusion and interfacial reaction, therefore regarding crystal cored solder, amorphous titanium-based or titanium zirconium base cored solder can obtain tissue evenly Densification, the higher connector of shear strength.Currently, for cored solder, generally by changing the atomic species being added in cored solder And atomic ratio is obtained with different fusion temperatures and processing performance, for example, silver is added, it is molten that the elements such as nickel can reduce alloy Point.Titanium-based amorphous cored solder research purpose is that the comprehensive performance of requirement cored solder is continuously improved to ensure weld seam and base material performance Consistency.In next research, the effect of different elements is understood, need to change element species and content optimizes its item Can, find out the wide and useful composition of commercial and industrial application range.Amorphous solder is goed deep by researcher for a long time Research, it has been found that joint area residual stress can be reduced to improve connector bonding strength by reducing brazing temperature, reduce pricker The connector that solder melt point obtains more preferable comprehensive performance is the research emphasis in current amorphous cored solder field.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, easily formed in such as cored solder fusing point height and connector Weld metal zone brittle intermetallic thing reduces the technical problems such as strength of joint, provides a kind of titanium-based amorphous alloy cored solder and its preparation side Method, titanium-based amorphous cored solder ingredient as possible close to base material under the premise of reduce cored solder fusing point, reduce easily formed brittle metal Between compound constituent content, cored solder made from this method has preferable wetability and mobility, obtained soldered fitting tool There is good comprehensive performance.
The fusing point of cored solder has direct influence, usual brazing temperature higher than solder liquidus temperature brazing temperature 25-60 DEG C, and it is less than at least 50 DEG C of base material fusing point, to ensure that base material keeps solid-state, excessively high brazing temperature meeting in brazing process Aggravate the interfacial reaction between base material and the cored solder of fusing, obtains coarse grain and thicker brazing layer, make soldered fitting Bonding strength reduces.In order to reduce cored solder fusing point, obtained soldered fitting microstructure dense non-porous hole is reduced in connector Weld metal zone brittle intermetallic thing needs to give full play to different elements itself and its mutual effect:(1) Ti contents are higher, have Conducive to wetting, the compatibility of cored solder and base material is improved;(2) on the one hand the addition of Cu and Ni can form eutectic with Zr and Ti Point cocrystalization compound, to reduce fusion temperature;On the other hand since they belong to active beta stable element, when soldering, is quick It is diffused into the corrosion for causing matrix in matrix, and reacts with Ti to form weld metal zone brittle intermetallic thing connector is caused to become fragile, therefore pricker Their amount should be reduced in solder to the greatest extent;(3) Zr and M (a kind of C, Si, Ge, Sn, Pb) has higher in α-Ti and β-Ti Solubility can reduce fusion temperature and improve the heat resistance of alloy, welding performance and pressure machining characteristics.
The technical purpose of the present invention is achieved by following technical proposals:
A kind of titanium-based amorphous alloy cored solder, is made of element titanium, copper, zirconium and M, and the ingredient of alloy has following expression Ti100-x-y-zCuxZryMz, wherein 20≤x≤30,10≤y≤25,0<The atomic percentage content of z≤8, Ti are 30~70%, Cu Atomic percentage content be 20~30%, Zr atomic percentage content be 10~25%, M atomic percentage content be 8% hereinafter, M is C, Si, Ge, Sn or Pb, and fusing point is 800~900 DEG C;
It is preferred that it is the atomic percent of 20~25%, Zr that the atomic percentage content of Ti, which is the atomic percentage content of 40~6%, Cu, Content is that the atomic percentage content of 15~20%, M is 3-8%.
It is preferred that titanium-based amorphous alloy cored solder is AMORPHOUS ALLOY RIBBONS, the width of alloy strip is 0.5~50mm, and thickness is 20~70 μm, the XRD diffracting spectrums of alloy strip are without apparent crystallization peak.
The preparation method of titanium-based amorphous alloy cored solder carries out as steps described below:
Step 1, dispensing is carried out according to titanium-based amorphous alloy brazing solder ingredient expression formula;The each metal former material used Material is powder raw material, technical grade purity;
Step 2, raw material step 1 configured carries out vacuum melting and forms master alloy, and the vacuum ranges 5.0 when melting × 10-3~9.0 × 10-3Pa, protective atmosphere are one kind in argon gas or helium, and melting number is 3~5 times;It is preferred that vacuum degree is 6.0×10-3~5.0 × 10-3Pa, melting 3-5 times;
Step 3, master alloy prepared by step 2 is placed in quartz ampoule and is melted again, used under the protection of inert gas Single roller chilling method prepares alloy strip, and the specific process parameter that single roller chilling method prepares alloy strip is:With 0.02~0.04MPa Injection pressure be sprayed onto with linear resonance surface velocity be 15~25m/s rotation copper roller on, after the completion of spray, at room temperature cool down 5-10 After minute, alloy strip is taken out.
In the above-mentioned technical solutions, in step 3, it is 3~10g small that master alloy ingot made from step 2, which is cut into as weight, Block is placed in quartz ampoule and melts again, and quartz ampoule, which is fixed in the induction coil of melting fast cooling device, to be melted;Quartz ampoule is opened For mouth length in 0.5-50mm, width is 0.3~1mm.
In the above-mentioned technical solutions, in step 3, inert atmosphere is using one kind in argon gas, helium.
In the above-mentioned technical solutions, in step 3, the width of alloy strip is 0.5~50mm, and thickness is 20~70 μm.
In the above-mentioned technical solutions, it in step 3, is sprayed onto with the injection pressure of 0.02~0.04MPa and is with linear resonance surface velocity On the copper roller of 20~25m/s rotations, after the completion of spray, cool down 8-10 minutes at room temperature.
Application of the titanium-based amorphous alloy cored solder in titanium alloy soldering, titanium alloy is titanium alloy TC 4.
When being brazed, titanium-based amorphous alloy cored solder and base material titanium alloy TC 4 are assembled into sandwich-like, tungsten is used in combination Silk binds and soldering sample is made, and soldering sample is placed in vacuum furnace brazing, soldering processes are as follows:It is heated up with 5-10 DEG C/min Speed rises to 500-550 DEG C from room temperature, then rises to furnace cooling after 900-960 DEG C of 10-30min of heat preservation with 8-10 DEG C/min To 20-25 degrees Celsius of room temperature.
Preferably, soldering processes are as follows:500-520 DEG C are risen to from room temperature with 5-8 DEG C/min heating rates, then with 8- 10 DEG C/min cools to 20-25 degrees Celsius of room temperature with the furnace after rising to 920-940 DEG C of 10-20min of heat preservation.
Fusing point that the present invention obtains is low, at low cost, wetability is good titanium-based multicomponent amorphous ribbon and with good comprehensive The soldered fitting test for closing performance is as follows:
(1) titanium-based multicomponent amorphous ribbon non crystalline structure characterizes.Several segment bands are cut in the alloy strip prepared It is detected for XRD, two segment bands is freely fixed on sample stage upwardly side by side, sample is detected with X-ray diffractometer Structure, obtained XRD diffraction maximums should be single disperse peak.
(2) titanium-based multicomponent amorphous ribbon thermal parameters measure.30-50mg samples are cut in the alloy strip prepared, And it shreds and is detected for DSC.The sample shredded is placed in alumina crucible and is flattened in fact.Using differential scanning calorimeter (DSC) The heating curve for recording cored solder reads the fusion temperature of cored solder in DSC heating curves.
(3) the microscopic appearance observation of soldered fitting.The brazed coupon of proper area is cut with metallographical cutter, sample is necessary Expose soldered fitting section, the contact cross-section of brazed coupon is polished on each sand paper from thick to thin successively, after pre-grinding Sample, be first polished on polishing machine, be polished to polishing scratch on sample remove completely and surface as minute surface when until.It will Kroll ' s reagents (2mlHF, 4mlHNO3, 100mlH2O it is eluted with water rapidly after) dripping to burnishing surface parked several seconds as corrosive agent, Alcohol is cleaned, and is then dried up with hair-dryer.It is placed in optical microphotograph microscopic observation connector microscopic appearance.
(4) vickers hardness test of soldered fitting.The Vickers hardness that soldered fitting is measured using Vickers, by (3) The middle sample corroded is fixed on the glass sheet, and corrosion is face-up, fixed to operate the method for preparing sample that can refer to X-ray diffraction. Joint area is found in field of microscope, the two neighboring lateral distance in joint area transverse direction 7 points of selection, 7 points It is identical, obtain the Vickers hardness of this 7 points.Repeat aforesaid operations at least 10 times, i.e. each point at least obtains 10 in 7 points Vickers hardness is averaged as a result, each putting in obtained result after removal maximum value and minimum value, and 7 final points are obtained Vickers hardness number, in of the invention, the hardness in 7 regions of soldered fitting that different soldering processes obtain all is higher than base material.The present invention Middle base material Vickers hardness number is 442HV0.1, and connector different zones Vickers hardness is all higher than 500HV0.1, and maximum value appears in pricker Weld 920 DEG C of temperature, the central area of the soldered fitting of soaking time 10min, numerical value 635HV0.1.
(5) the different zones facies analysis of soldered fitting.Soldered fitting is since atoms permeating situation is different, different zones element Content distribution is different.Butt joint different zones do energy spectrum analysis, you can substantially obtain the distribution situation of joint area phase.
Compared with prior art, AMORPHOUS ALLOY RIBBONS fusing point of the present invention is relatively low, and have spy at low cost, that wetability is good Point meets the condition due to being brazed titanium alloy:(1) the method simple possible of titanium-based amorphous cored solder is prepared, easily operated control, It is a kind of preparation method of economical and efficient, obtained amorphous ribbon has the characteristics that fusing point is low, stability is high, wetability is good;(2) Under certain brazing process parameter, microstructure densification, the few soldered fitting of weld metal zone brittle intermetallic thing can be obtained;(3) connector area Domain hardness is all higher than base material.
Description of the drawings
Fig. 1 is that the ingredient expression formula that the width being prepared in embodiment 1,2 is 11mm is Ti54Cu26Zr18Sn2Non- crystal bar The appearance of band;
Fig. 2 is that the ingredient expression formula that the width being prepared in embodiment 1,2 is 11mm is Ti54Cu26Zr18Sn2Non- crystal bar The DSC heating curves of band.
Fig. 3 is that the ingredient expression formula that the width being prepared in embodiment 1,2 is 11mm is Ti54Cu26Zr18Sn2Non- crystal bar The X-ray diffractogram of band.
Fig. 4 (a), (b), (c) are the Ti that embodiment 1 is prepared successively54Cu26Zr18Sn2Alloy strip is protected at 920 DEG C The metallograph for the soldered fitting that warm 10min, 15min, 20min soldering TC4 is obtained, amplification factor is 500 times.
Fig. 5 (a), (b), (c) are the Ti that embodiment 1 is prepared successively54Cu26Zr18Sn2Alloy strip is protected at 940 DEG C The metallograph for the soldered fitting that warm 10min, 15min, 20min soldering TC4 is obtained, amplification factor is 500 times.
Specific implementation mode
In order to make the purpose of the present invention, technical solution and feature be more clear it is clear, below in conjunction with the accompanying drawings and specific implementation Example present invention is further described in detail, described specific embodiment is only explained the present invention, not to The limitation present invention.
Embodiment 1 prepares titanium-based amorphous cored solder band, and ingredient expression formula is Ti54Cu26Zr18Sn2, weld base material used It (is made of the titanium of mass percent 90%, 6% aluminium and 4% vanadium) for Ti-6Al-4V, and in 920 DEG C of brazing temperature differences It is brazed, includes the following steps under the soldering processes of soaking time:
Step 1: according to alloying component expression formula Ti54Cu26Zr18Sn2, by atomic percent be converted to mass percent into Row dispensing, high-purity Ti, Cu, Zr, Sn (purity the is not less than 99.9wt%) raw metal for weighing corrresponding quality are for use;
Step 2: the target component raw material of weighing is placed in vacuum arc melting furnace, vacuum is evacuated to 9.5 × 10-3When Pa Argon gas is filled with as protective atmosphere, alloy is heated to and is completely melt that room temperature, mother is obtained through 3-5 melting repeatedly for uniform postcooling Alloy pig;
Step 3: pressing from both sides master alloy ingot made from step 2 at fritter, each fritter quality is 5g, is placed in quartz ampoule simultaneously It melts again, alloy strip is prepared using single roller chilling method under the protection of inert gas.Specific technical parameter:With 0.03- The injection pressure of 0.04MPa is sprayed onto on the copper roller with linear resonance surface velocity for 20-25m/s rotations, after the completion of spray, cooling about 10 After minute, alloy strip is taken out, the thickness of the alloy strip is 40 μm -70 μm.
Step 4: the amorphous ribbon obtained in step 3 is cut into the shape that size is 10mm × 10mm, by itself and base material Titanium alloy (TC4) is assembled into " sandwich " shape, is used in combination tungsten filament encircling that soldering sample is made.Soldering sample is placed in pricker in vacuum drying oven Weldering, soldering processes are as follows:500 DEG C are risen to from room temperature with 5 DEG C/min heating rates, then 920 DEG C are risen to 10 DEG C/min, 920 It is furnace-cooled to room temperature after keeping the temperature 10,15,20min at a temperature of DEG C, takes out sample.
Fig. 1 to Fig. 3 is respectively the Ti that embodiment 1 is prepared54Cu26Zr18Sn2The macroscopic appearances of amorphous ribbon, X-ray Diffracting spectrum and DSC heating curves.It can be observed from fig. 2 that only there are one disperse peaks for its X ray diffracting spectrum, show the alloy For single amorphous phase.Ti can be read by Fig. 3 curves54Cu26Zr18Sn2The fusing point of amorphous ribbon is 900 DEG C.Fig. 4 (a) (b) (c) For the microscopic appearance for the soldered fitting that soaking time in embodiment 1 10,15,20min obtains, the formation of brazing process joint area It is spread including solid-liquid, isothermal solidification.It can be seen that the longitudinally central of Fig. 4 (a) has the cored solder not spread fully also, it may be possible to by Short (10min) in soaking time, the cored solder of fusing has little time fully to spread, this phenomenon is not present in Fig. 4 (b) and Fig. 4 (c). The eds analyses of three kinds of situation lower contact different zones are listed in table 1 (a) (b) (c) successively, from central area toward base material direction, Ti contents gradually rise, and Cu contents continuously decrease, and have Ti in the high region of Cu contents2Cu exists;Table 1 (a), (b), (c) are successively It is the Ti that embodiment 1 is prepared54Cu26Zr18Sn2For alloy strip at 920 DEG C, heat preservation 10min, 15min, 20min are brazed TC4 The eds analysis results of obtained soldered fitting.With the raising of soaking time, counterdiffusion is fully carried out, and soaking time is Joint area occurs compared with multi-needle Widmannstatten structure when 20min.
Table 1 (a)
Table 1 (b)
Table 1 (c)
Embodiment 2 prepares titanium-based amorphous cored solder band, and ingredient expression formula is Ti54Cu26Zr18Sn2, weld base material used It for Ti-6Al-4V, and is brazed, includes the following steps under the soldering processes of 940 DEG C of brazing temperature difference soaking times:
Step 1: two, three the same as embodiment 1;
Step 4: the amorphous ribbon obtained in step 3 is cut into the shape that size is 10mm*10mm, by itself and base material titanium Alloy (TC4) is assembled into " sandwich " shape, is used in combination tungsten filament encircling that soldering sample is made.Soldering sample is placed in pricker in vacuum drying oven Weldering, soldering processes:5 DEG C/min heating rates rise to 500 DEG C from room temperature, then rise to 940 DEG C with 10 DEG C/min, in 940 DEG C of temperature It is furnace-cooled to room temperature after lower heat preservation 10,15,20min, takes out sample.
Fig. 5 (a) (b) (c) is followed successively by the microcosmic shape for the soldered fitting that soaking time 10,15,20min obtains in embodiment 2 The formation of looks, brazing process joint area includes solid-liquid diffusion, isothermal solidification.Table 2 (a) (b) (c) is followed successively by three kinds of holding temperatures Under obtain connector different zones eds analysis;Table 2 (a), (b), (c) are that embodiment 1 is prepared successively Ti54Cu26Zr18Sn2Alloy strip is at 940 DEG C, the eds for the soldered fitting that heat preservation 10min, 15min, 20min soldering TC4 is obtained Analysis result..Due to the raising of brazing temperature, atoms permeating aggravates, and the interfacial reaction in brazing process is also aggravated, the needle of generation Shape brittleness Widmannstatten structure increases relative to 920 DEG C, close to running through entire joint area when especially soaking time 20min.
Table 2 (a)
Table 2 (b)
Table 2 (c)
According to the content of present invention record formula and technological parameter be adjusted, select other elements C, Si of the same clan etc. into The preparation of row alloy, and show the brazing property almost the same with embodiment.Illustrative description has been done to the present invention above, It should be noted that in the case where not departing from core of the invention, any simple deformation, modification or other this field skills Art personnel can not spend the equivalent replacement of creative work to each fall within protection scope of the present invention.

Claims (9)

1. a kind of titanium-based amorphous alloy cored solder, which is characterized in that be made of element titanium, copper, zirconium and M, the ingredient of alloy has Following expression Ti100-x-y-zCuxZryMz, wherein 20≤x≤30,10≤y≤25,0<The atomic percentage content of z≤8, Ti are 30 The atomic percentage content of~70%, Cu are that the atomic percentage content of 20~30%, Zr is the atomic percentage content of 10~25%, M For 8% hereinafter, M is C, Si, Ge, Sn or Pb, fusing point is 800~900 DEG C.
2. a kind of titanium-based amorphous alloy cored solder according to claim 1, which is characterized in that the atomic percentage content of Ti is The atomic percentage content of 40~6%, Cu are that the atomic percentage content of 20~25%, Zr is the atomic percentage content of 15~20%, M It is 3-8%.
3. a kind of titanium-based amorphous alloy cored solder according to claim 1 or 2, which is characterized in that titanium-based amorphous alloy Cored solder is AMORPHOUS ALLOY RIBBONS, and the width of alloy strip is 0.5~50mm, and thickness is 20~70 μm.
4. the preparation method of titanium-based amorphous alloy cored solder, which is characterized in that carry out as steps described below:
Step 1, dispensing is carried out according to titanium-based amorphous alloy brazing solder ingredient expression formula;The each raw material metal used is Powder raw material, technical grade purity;
Step 2, raw material step 1 configured carries out vacuum melting and forms master alloy, the vacuum ranges 5.0 × 10 when melting-3 ~9.0 × 10-3Pa, protective atmosphere are one kind in argon gas or helium, and melting number is 3~5 times;It is preferred that vacuum degree be 6.0 × 10-3~5.0 × 10-3Pa, melting 3-5 times;
Step 3, master alloy prepared by step 2 is placed in quartz ampoule and is melted again, using single roller under the protection of inert gas Chilling method prepares alloy strip, and the specific process parameter that single roller chilling method prepares alloy strip is:With the spray of 0.02~0.04MPa It is after the completion of spray, to be cooled down 5-10 minutes at room temperature on the copper roller of 15~25m/s rotations that injection pressure, which is sprayed onto with linear resonance surface velocity, Afterwards, alloy strip is taken out.
5. the preparation method of titanium-based amorphous alloy cored solder according to claim 4, which is characterized in that in step 3, will walk It is 3~10g fritters that master alloy ingot made from rapid 2, which cuts into as weight, is placed in quartz ampoule and melts again, quartz ampoule is fixed on molten It refines and is melted in the induction coil of fast cooling device;For quartz ampoule Opening length in 0.5-50mm, width is 0.3~1mm.
6. the preparation method of titanium-based amorphous alloy cored solder according to claim 4, which is characterized in that in step 3, with The injection pressure of 0.02~0.04MPa is sprayed onto on the copper roller with linear resonance surface velocity for 20~25m/s rotations, after the completion of spray, room Temperature is lower 8-10 minutes cooling.
7. the preparation method of titanium-based amorphous alloy cored solder according to claim 4, which is characterized in that in step 3, inertia Atmosphere is using one kind in argon gas, helium.
8. application of the titanium-based amorphous alloy cored solder as described in claim 1 or 2 in titanium alloy soldering, feature exist In when being brazed, titanium-based amorphous alloy cored solder and base material titanium alloy TC 4 being assembled into sandwich-like, tungsten filament is used in combination to tie Soldering sample tightly is made, soldering sample is placed in vacuum furnace brazing, soldering processes are as follows:With 5-10 DEG C/min heating rates 500-550 DEG C are risen to from room temperature, then room is cooled to the furnace after rising to 900-960 DEG C of 10-30min of heat preservation with 8-10 DEG C/min 20-25 degrees Celsius of temperature.
9. application according to claim 8, which is characterized in that when being brazed, soldering processes are as follows:With 5-8 DEG C/ Min heating rates rise to 500-520 DEG C from room temperature, then after rising to 920-940 DEG C of 10-20min of heat preservation with 8-10 DEG C/min Cool to 20-25 degrees Celsius of room temperature with the furnace.
CN201710227623.6A 2017-04-10 2017-04-10 A kind of titanium-based amorphous alloy cored solder and preparation method thereof Pending CN108687461A (en)

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CN117209170A (en) * 2023-08-28 2023-12-12 苏州大学 Laser welding method for nickel-based alloy and silicon carbide glass

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Publication number Priority date Publication date Assignee Title
CN115446496A (en) * 2022-09-21 2022-12-09 华东理工大学 Copper-containing nickel-based brazing filler metal and preparation method thereof
CN117209170A (en) * 2023-08-28 2023-12-12 苏州大学 Laser welding method for nickel-based alloy and silicon carbide glass

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