CN109468484A - A method of addition zirconium nitride realizes high-temperature titanium alloy complex intensifying - Google Patents
A method of addition zirconium nitride realizes high-temperature titanium alloy complex intensifying Download PDFInfo
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- CN109468484A CN109468484A CN201811595900.XA CN201811595900A CN109468484A CN 109468484 A CN109468484 A CN 109468484A CN 201811595900 A CN201811595900 A CN 201811595900A CN 109468484 A CN109468484 A CN 109468484A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0068—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only nitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
Abstract
A method of addition zirconium nitride realizes high-temperature titanium alloy complex intensifying, and the present invention relates to a kind of methods that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying.The present invention replaces Zr in high-temperature titanium alloy by adding a kind of novel grain refiner ZrN, using the Zr element in ZrN, and the additional amount of fining agent ZrN depends on the content of Zr in high-temperature titanium alloy.After adding ZrN, the crystal grain of high-temperature titanium alloy can effectively be refined, to realize the refined crystalline strengthening of titanium alloy, simultaneously, a large amount of N element can also be introduced into high-temperature titanium alloy, according to Ti+N=TiN reaction equation, N forms a large amount of dispersed and tiny TiN in conjunction with the Ti in matrix, to realize second-phase strength.Therefore, by the way that ZrN is added into alloy, while Zr element solid solution is strengthened in guaranteeing alloy, refined crystalline strengthening and second-phase strength superposition can also be realized simultaneously.The present invention can effectively promote the mechanical property of high-temperature titanium alloy.
Description
Technical field
The present invention relates to a kind of methods that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying.
Background technique
Titanium alloy has many advantages, such as that density is low, specific strength is high, specific modulus is high, nonmagnetic, corrosion-resistant and solderable, wide
It is general to be applied to the fields such as aerospace, military project.In recent years, it as the speed of aerospace flight vehicle is higher and higher, navigates to aviation
High-temperature structural material mechanical property used in its aircraft and its dynamical system also proposed more harsh requirement.As answering
For the structural material of aerospace field critical component, room temperature or elevated temperature strength are the important of measurement high-temperature titanium alloy reliability
Index.Therefore, how to promote the room temperature of high-temperature titanium alloy or elevated temperature strength has a very important significance.
The main schedule of reinforcement of high-temperature titanium alloy includes refined crystalline strengthening, solution strengthening, second-phase strength etc. at present.But mesh
The elements such as a certain amount of Al, Sn, Zr, Si are added in preceding high-temperature titanium alloy and carry out solution strengthening, while by high-temperature titanium alloy
Ti3Al phase and silicide phase carry out second-phase strength.For certain high-temperature titanium alloy based composites, reinforcement there are energy
Crystal grain is enough refined, realizes the superposition of refined crystalline strengthening and second-phase strength.But only pass through adding for fining agent in high-temperature titanium alloy
The superposition for entering can be realized solution strengthening, refined crystalline strengthening, the triple strengthening effects of second-phase strength, also lacks document report at present.
Summary of the invention
The present invention is existing there are existing high-temperature titanium alloy intensity is low in order to solve the problems, such as, and provides a kind of addition nitridation
The method of zirconium realization high-temperature titanium alloy complex intensifying.
It is a kind of addition zirconium nitride realize high-temperature titanium alloy complex intensifying method specifically sequentially include the following steps:
One, the mass percent that each element is calculated according to the nominal chemical component of final product high-temperature titanium alloy containing zirconium, according to
Each element contained by it carries out ingredient, obtains raw material fusion；Ti element is provided by titanium sponge in blending process, Zr element is by ZrN
It provides, remaining element is provided by its pure metal or intermediate alloy；
Two, melting is carried out to raw material fusion, obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is subjected to homogenizing annealing, subsequent furnace cooling obtains zirconium nitride enhancing
High-temperature titanium alloy containing zirconium.
The beneficial effects of the present invention are:
The present invention and CN201210374505.5, one kind that a kind of this seminar of high-temperature titanium alloy and preparation method thereof proposes
The preparation method of novel nearly α high-temperature titanium alloy passes through and improves Zr content and the high melting element such as Nb, W is added is by high-temperature titanium alloy
Be promoted to 650 DEG C~700 DEG C using temperature in short-term, and have excellent mechanical property.The present invention is suitable for all containing Zr's
High-temperature titanium alloy, includes CN201210374505.5, the high-temperature titanium alloy mentioned in a kind of high-temperature titanium alloy and preparation method thereof,
By the addition of ZrN, the superposition that solution strengthening, refined crystalline strengthening and Section 2 strengthen three kinds of strengthening effects can be realized, so as to
The enough intensity for further promoting high-temperature titanium alloy.
Fining agent ZrN need to only be added in the present invention into high-temperature titanium alloy, realize crystal grain refinement, while containing original in alloy
Position reaction synthesis TiN and solid solution Zr element, i.e., guarantee Zr element solid solution strengthen while, it can be achieved that refined crystalline strengthening and
The superposition of a variety of schedule of reinforcements such as TiN second-phase strength, to be obviously improved high-temperature titanium alloy intensity.High temperature of the present invention
Titanium alloy can be produced using existing high-temperature titanium alloy smelting equipment and technique, not will increase additional preparation cost, have weight
Want commercial value and wide application prospect.
Detailed description of the invention
Fig. 1 is the room temperature tensile properties of the TA15 alloy for being not added with ZrN and the TA15 alloy containing ZrN；
Fig. 2 is the room temperature tensile properties of the Ti60 alloy for being not added with ZrN and the Ti60 alloy containing ZrN；
Fig. 3 is the room temperature tensile properties of the Ti6242 alloy for being not added with ZrN and the Ti6242 alloy containing ZrN；
Fig. 4 is the room temperature tensile properties of the Ti1100 alloy for being not added with ZrN and the Ti1100 alloy containing ZrN；
Fig. 5 is the Ti-6Al-3Sn-10Zr-0.8Mo-1Nb-1W-0.3Si alloy for being not added with ZrN and the Ti- containing ZrN
6Al-3Sn-10Zr-0.8Mo-1Nb-1W-0.3Si the room temperature tensile properties of alloy.
Specific embodiment
Specific embodiment 1: a kind of addition zirconium nitride of present embodiment realizes the method tool of high-temperature titanium alloy complex intensifying
Body sequentially includes the following steps:
One, the mass percent that each element is calculated according to the nominal chemical component of final product high-temperature titanium alloy containing zirconium, according to
Each element contained by it carries out ingredient, obtains raw material fusion；Ti element is provided by titanium sponge in blending process, Zr element is by ZrN
It provides, remaining element is provided by its pure metal or intermediate alloy；
Two, melting is carried out to raw material fusion, obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is subjected to homogenizing annealing, subsequent furnace cooling obtains zirconium nitride enhancing
High-temperature titanium alloy containing zirconium.
Present embodiment refines crystal grain, to realize refined crystalline strengthening, together by adding a kind of novel grain refiner ZrN
When, the Zr element in ZrN replaces Zr in high-temperature titanium alloy, plays solution strengthening effect, and N is formed largely more with the Ti in matrix in conjunction with
Tiny TiN is dissipated, second-phase strength is played.The additional amount of fining agent ZrN depends on the content of Zr in high-temperature titanium alloy, this hair
It is bright to be suitable for all high-temperature titanium alloys containing Zr, it can effectively promote the mechanical property of high-temperature titanium alloy.
Fining agent directly buys industrial production ZrN.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: this method is used for high temperature containing Zr
The complex intensifying of titanium alloy, the additional amount of the ZrN are 2.3~11.36wt.%.Other are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: sea described in step 1
Purity >=99% of purity >=99%, ZrN of continuous titanium, purity >=99% of pure metal, purity >=99% of intermediate alloy.Other
It is the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: institute in step 2
Stating melting is vacuum non-consumable electric arc melting, vacuum consumable arc-melting, vacuum induction melting or electron-beam cold bed furnace melting.Its
He is identical as one of specific embodiment one to three.
Present embodiment, which places one piece of thickness >=30mm copper sheet in mold bottom, may be implemented high-temperature titanium alloy ingot casting
Consecutive solidification and then raising alloy cast ingot quality.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four: institute in step 2
State fusion process are as follows: the raw material prepared is put into vacuum induction melting furnace, is evacuated to vacuum degree≤3.0 × 10 in furnace-3Pa,
It is poured after keeping the temperature 5~30min after melting sources；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate.Other are identical as one of specific embodiment one to four.
Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five: institute in step 3
State homogenizing annealing be high-temperature titanium alloy ingot casting to be heated is put into temperature be 800~950 DEG C heat-treatment furnace keep 5~
50h.Other are identical as one of specific embodiment one to five.
Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six: institute in step 3
Stating homogenizing annealing is that high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C to keep 50h.Other with
One of specific embodiment one to six is identical.
Specific embodiment 8: unlike one of present embodiment and specific embodiment one to seven: addition zirconium nitride
The method for realizing high-temperature titanium alloy complex intensifying further includes carrying out at subsequent heat treatment and following process to high-temperature titanium alloy containing zirconium
Reason.Other are identical as one of specific embodiment one to seven.
Present embodiment can regulate and control the performance of material by heat treatment and hot-working.
Specific embodiment 9: unlike one of present embodiment and specific embodiment one to eight: the subsequent thermal
Processing includes one of annealing, tempering, quenching, solid solution and timeliness or in which several combinations.Other and specific embodiment
One of one to eight is identical.
Specific embodiment 10: unlike one of present embodiment and specific embodiment one to nine: it is described subsequent plus
Work processing includes forging, rolling, extruding, drawing or machining.Other are identical as one of specific embodiment one to nine.
Beneficial effects of the present invention are verified using following embodiment:
Embodiment one: it is a kind of addition zirconium nitride realize high-temperature titanium alloy complex intensifying method specifically according to the following steps into
Row:
One, the matter of each element is calculated according to the nominal chemical component Ti-6.5Al-2Zr-1Mo-1V of final product TA15 alloy
Percentage is measured, ingredient is carried out according to each element contained by it, obtains raw material fusion；Ingredient gross mass be 20kg, moderate purity >=
99% titanium sponge 17.82kg, the commercial-purity aluminium 1.1kg of purity >=99%, the molybdenum aluminium alloy 0.31kg that molybdenum content is 65%, vanadium contain
Aluminum-vanadium alloy 0.31kg, the ZrN powder 0.46kg that amount is 65%；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain the TA15 alloy of zirconium nitride enhancing.
Embodiment two: a kind of preparation method of the high-temperature titanium alloy containing zirconium specifically sequentially includes the following steps:
One, the matter of each element is calculated according to the nominal chemical component Ti-6.5Al-2Zr-1Mo-1V of final product TA15 alloy
Percentage is measured, ingredient is carried out according to each element contained by it, obtains raw material fusion；Ingredient gross mass is 20kg, and Ti element is by pure
Spend that >=99% titanium sponge provides, Zr element is provided by sponge zirconium, remaining element is by the commercial-purity aluminium of purity >=99%, molybdenum content is
65% molybdenum aluminium alloy, content of vanadium provide for 65% aluminum-vanadium alloy；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain TA15 alloy.
The TA15 alloy line that the TA15 alloy and embodiment two of the zirconium nitride enhancing obtained respectively to embodiment one obtain
Core sample is cut, is tested simultaneously using electronic universal cupping machine and is not added with the titanium alloy of ZrN and containing the titanium of ZrN
The room temperature tensile properties of alloy.As shown in Figure 1, the tensile strength for not adding the TA15 of ZrN is 936MPa, and after ZrN is added, according to
Ti+N=TiN reaction equation, the mass fraction for generating TiN is 1.33%, and tensile strength 1066MPa, strength enhancing is closely
13.8%.
Embodiment three: it is a kind of addition zirconium nitride realize high-temperature titanium alloy complex intensifying method specifically according to the following steps into
Row:
One, according to the nominal chemical component Ti -5.8Al -4.0Sn -3.5Zr -1Mo -0.85Nd-of final product Ti60 alloy
0.4Si calculates the mass percent of each element, carries out ingredient according to each element contained by it, obtains raw material fusion；The total matter of ingredient
Amount is 20kg, and moderate purity >=99% titanium sponge 16.81kg, the rafifinal 0.06kg of purity >=99%, molybdenum content is 65%
Molybdenum aluminium alloy 0.31kg, the mock silver 1.4kg that Theil indices are 55%, the neodymium aluminium alloy 0.43kg that neodymium content is 40%, silicon contain
Aluminium silicon intermediate alloy 0.16kg, the ZrN 0.81kg that amount is 50%；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain the Ti60 alloy of zirconium nitride enhancing.
Example IV: a kind of preparation method of the high-temperature titanium alloy containing zirconium specifically sequentially includes the following steps:
One, according to the nominal chemical component Ti -5.8Al -4.0Sn -3.5Zr -1Mo -0.85Nd-of final product Ti60 alloy
0.4Si calculates the mass percent of each element, carries out ingredient according to each element contained by it, obtains raw material fusion；The total matter of ingredient
Amount is 20kg, and Ti element is provided by purity >=99% titanium sponge, Zr element is provided by sponge zirconium, remaining element is by purity >=99%
Rafifinal, molybdenum content be 65% molybdenum aluminium alloy, Theil indices be 55% mock silver, neodymium content be 40% neodymium aluminium close
Gold, silicone content provide for 50% aluminium silicon intermediate alloy；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain Ti60 alloy.
The Ti60 alloy line that the Ti60 alloy and example IV of the zirconium nitride enhancing obtained respectively to embodiment three obtain
Core sample is cut, is tested simultaneously using electronic universal cupping machine and is not added with the titanium alloy of ZrN and containing the titanium of ZrN
The room temperature tensile properties of alloy.As shown in Fig. 2, the tensile strength for not adding the Ti60 of ZrN is 946MPa, and after ZrN is added, according to
Ti+N=TiN reaction equation, the mass fraction for generating TiN is 2.44%, and tensile strength 1082MPa, strength enhancing is closely
14.4%.
Embodiment five: it is a kind of addition zirconium nitride realize high-temperature titanium alloy complex intensifying method specifically according to the following steps into
Row:
One, the matter of each element is calculated according to the nominal chemical component Ti-6Al-2Sn-4Zr-2Mo of final product Ti6242 alloy
Percentage is measured, ingredient is carried out according to each element contained by it, obtains raw material fusion；Ingredient gross mass be 20kg, moderate purity >=
99% titanium sponge 17.08kg, the commercial-purity aluminium 0.65kg of purity >=99%, the molybdenum aluminium alloy 0.62kg that molybdenum content is 65%, tin
Mock silver 0.73kg, the ZrN powder 0.92kg that content is 55%；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain the Ti6242 alloy of zirconium nitride enhancing.
Embodiment six: a kind of preparation method of the high-temperature titanium alloy containing zirconium specifically sequentially includes the following steps:
One, the matter of each element is calculated according to the nominal chemical component Ti-6Al-2Sn-4Zr-2Mo of final product Ti6242 alloy
Percentage is measured, ingredient is carried out according to each element contained by it, obtains raw material fusion；Ingredient gross mass is 20kg, and Ti element is by pure
Spend that >=99% titanium sponge provides, Zr element is provided by sponge zirconium, remaining element is by the commercial-purity aluminium of purity >=99%, molybdenum content is
65% molybdenum aluminium alloy, Theil indices provide for 55% mock silver；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain Ti6242 alloy.
The Ti6242 alloy that the Ti6242 alloy and embodiment six of the zirconium nitride enhancing obtained respectively to embodiment five obtain
Core sample is cut with wire cutting, is tested simultaneously using electronic universal cupping machine and is not added with the titanium alloy of ZrN and contains ZrN
Titanium alloy room temperature tensile properties.As shown in figure 3, the tensile strength for not adding the Ti6242 of ZrN is 930MPa, and ZrN is added
Afterwards, according to Ti+N=TiN reaction equation, the mass fraction for generating TiN is 2.72%, tensile strength 1103MPa, strength enhancing
Nearly 18.6%.
Embodiment seven: it is a kind of addition zirconium nitride realize high-temperature titanium alloy complex intensifying method specifically according to the following steps into
Row:
One, it is counted according to the nominal chemical component Ti-6Al-2.7Sn-4Zr-0.4Mo-0.45Si of final product Ti1100 alloy
The mass percent for calculating each element carries out ingredient according to each element contained by it, obtains raw material fusion；Ingredient gross mass is
20kg, moderate purity >=99% titanium sponge 17.15kg, the commercial-purity aluminium 0.65kg of purity >=99%, the molybdenum that molybdenum content is 65%
Aluminium alloy 0.12kg, the mock silver 0.98kg that Theil indices are 55%, the aluminium silicon intermediate alloy 0.18kg that silicone content is 50%,
ZrN powder 0.92kg；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain the Ti1100 alloy of zirconium nitride enhancing.
Embodiment eight: a kind of preparation method of the high-temperature titanium alloy containing zirconium specifically sequentially includes the following steps:
One, it is counted according to the nominal chemical component Ti-6Al-2.7Sn-4Zr-0.4Mo-0.45Si of final product Ti1100 alloy
The mass percent for calculating each element carries out ingredient according to each element contained by it, obtains raw material fusion；Ingredient gross mass is
20kg, Ti element are provided by purity >=99% titanium sponge, Zr element is provided by sponge zirconium, remaining element by purity >=99% work
Industry fine aluminium, the molybdenum aluminium alloy that molybdenum content is 65%, the mock silver that Theil indices are 55%, the aluminium silicon centre that silicone content is 50% are closed
Gold provides；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain Ti1100 alloy.
The Ti1100 alloy that the Ti1100 alloy and embodiment eight of the zirconium nitride enhancing obtained respectively to embodiment seven obtain
Core sample is cut with wire cutting, is tested simultaneously using electronic universal cupping machine and is not added with the titanium alloy of ZrN and contains ZrN
Titanium alloy room temperature tensile properties.As shown in figure 4, the tensile strength for not adding the Ti1100 of ZrN is 916MPa, and ZrN is added
Afterwards, according to Ti+N=TiN reaction equation, the mass fraction for generating TiN is 2.72%, tensile strength 1068MPa, strength enhancing
Nearly 16.6%, and moulding is declined slightly.
Embodiment nine: it is a kind of addition zirconium nitride realize high-temperature titanium alloy complex intensifying method specifically according to the following steps into
Row:
One, according to the nominal chemical component Ti-6Al-3Sn-10Zr-0.8Mo-1Nb- of final product high-temperature titanium alloy containing zirconium
1W-0.3Si calculates the mass percent of each element, carries out ingredient according to each element contained by it, obtains raw material fusion；Ingredient is total
Quality is 20kg, moderate purity >=99% titanium sponge 15.45kg, the commercial-purity aluminium 0.43kg of purity >=99%, and molybdenum content is
65% molybdenum aluminium alloy 0.25kg, the mock silver 1.09kg that Theil indices are 55%, the Nb-Al alloy that content of niobium is 60%
0.33kg, the pure tungsten 0.2kg that purity is 99.9%, aluminium silicon intermediate alloy 0.12kg, the ZrN 2.31kg that silicone content is 50%；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain the high-temperature titanium alloy containing zirconium of zirconium nitride enhancing.
Embodiment ten: a kind of preparation method of the high-temperature titanium alloy containing zirconium specifically sequentially includes the following steps:
One, according to the nominal chemical component Ti-6Al-3Sn-10Zr-0.8Mo-1Nb- of final product high-temperature titanium alloy containing zirconium
1W-0.3Si calculates the mass percent of each element, carries out ingredient according to each element contained by it, obtains raw material fusion；Ingredient is total
Quality is 20kg, Ti element is provided by purity >=99% titanium sponge, Zr element is provided by sponge zirconium, remaining element by purity >=
99% commercial-purity aluminium, the molybdenum aluminium alloy that molybdenum content is 65%, the mock silver that Theil indices are 55%, the niobium that content of niobium is 60%
Aluminium alloy, the pure tungsten of purity >=99%, silicone content provide for 50% aluminium silicon intermediate alloy；
Two, raw material fusion is put into water jacketed copper crucible vacuum induction melting furnace, is evacuated to 3.0 × 10-3MPa, alloy
It is poured after keeping the temperature 10min after raw material fusing；One block of thickness >=30mm copper is placed in mold bottom when being poured ingot casting
Plate obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C and keeps 50h, then with furnace
It is cooling, obtain high-temperature titanium alloy containing zirconium.
The high-temperature titanium alloy containing zirconium and embodiment ten of the zirconium nitride enhancing obtained respectively to embodiment nine obtain high containing zirconium
Warm titanium alloy cuts core sample with wire cutting, tests the titanium alloy for being not added with ZrN simultaneously using electronic universal cupping machine
And the room temperature tensile properties of the titanium alloy containing ZrN.As shown in figure 5, not adding the Ti-6Al-3Sn-10Zr-0.8Mo-1Nb- of ZrN
The tensile strength of 1W-0.3Si is 937MPa, and after ZrN is added, according to Ti+N=TiN reaction equation, generate the mass fraction of TiN
It is 6.82%, tensile strength 1132MPa, strength enhancing 20.8%.
Claims (10)
1. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying, it is characterised in that addition zirconium nitride realizes high temperature
The method of titanium alloy complex intensifying specifically sequentially includes the following steps:
One, the mass percent that each element is calculated according to the nominal chemical component of final product high-temperature titanium alloy containing zirconium, according to its institute
The each element contained carries out ingredient, obtains raw material fusion；Ti element is provided by titanium sponge in blending process, Zr element is provided by ZrN,
Remaining element is provided by its pure metal or intermediate alloy；
Two, melting is carried out to raw material fusion, obtains high-temperature titanium alloy ingot casting to be heated；
Three, high-temperature titanium alloy ingot casting to be heated is subjected to homogenizing annealing, subsequent furnace cooling obtains zirconium nitride enhancing containing zirconium
High-temperature titanium alloy.
2. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 1, feature exist
It is used for the complex intensifying of the high-temperature titanium alloy containing Zr in this method, the additional amount of the ZrN to be 2.3~11.36wt.%.
3. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 1, feature exist
Purity >=99% of purity >=99%, ZrN of the titanium sponge described in step 1, purity >=99% of pure metal, intermediate alloy
Purity >=99%.
4. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 1, feature exist
The melting described in step 2 is vacuum non-consumable electric arc melting, vacuum consumable arc-melting, vacuum induction melting or electron beam
Cold hearth melting.
5. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 4, feature exist
The fusion process described in step 2 are as follows: the raw material prepared is put into vacuum induction melting furnace, is evacuated to vacuum degree in furnace
≤3.0×10-3Pa is poured after keeping the temperature 5~30min after melting sources；One piece is placed in mold bottom when being poured ingot casting
Thickness >=30mm copper sheet.
6. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 1, feature exist
The homogenizing annealing described in step 3 is at the heat that high-temperature titanium alloy ingot casting to be heated is put into temperature and is 800~950 DEG C
It manages furnace and keeps 5~50h.
7. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 1, feature exist
The homogenizing annealing described in step 3 is that high-temperature titanium alloy ingot casting to be heated is put into the heat-treatment furnace that temperature is 900 DEG C to protect
Hold 50h.
8. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 1, feature exist
It further include that subsequent heat treatment is carried out to high-temperature titanium alloy containing zirconium in adding the method that zirconium nitride realizes high-temperature titanium alloy complex intensifying
And subsequent processing.
9. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 8, feature exist
In the subsequent heat treatment include annealing, tempering, quenching, solid solution and one of timeliness or in which several combinations.
10. a kind of method that addition zirconium nitride realizes high-temperature titanium alloy complex intensifying according to claim 8, feature exist
Include forging, rolling, extruding, drawing or machining in the subsequent processing.
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| CN106756237A (en) * | 2017-01-10 | 2017-05-31 | 沈阳泰恒通用技术有限公司 | A kind of abrasion-resistant titanium basic composite |
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| DE69909100D1 (en) * | 1998-07-21 | 2003-07-31 | Toyoda Chuo Kenkyusho Kk | TITANIUM-BASED COMPOSITE MATERIAL, METHOD FOR THE PRODUCTION THEREOF AND ENGINE VALVE |
| JP2005076052A (en) * | 2003-08-28 | 2005-03-24 | Daido Steel Co Ltd | Titanium alloy with improved rigidity and strength |
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