CN107904440A - A kind of high-temperature titanium alloy material and preparation method thereof - Google Patents
A kind of high-temperature titanium alloy material and preparation method thereof Download PDFInfo
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- CN107904440A CN107904440A CN201711180652.8A CN201711180652A CN107904440A CN 107904440 A CN107904440 A CN 107904440A CN 201711180652 A CN201711180652 A CN 201711180652A CN 107904440 A CN107904440 A CN 107904440A
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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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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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
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Abstract
A kind of high-temperature titanium alloy material and preparation method thereof, belongs to titanium alloy technical field.By mass percentage by Al：6.5%~7%, Sn：3%~5%, Zr：6%~9%, Mo+W+Nb：1.2~4%, Si：0.2~0.4%, Re：0.1~0.3% and Ti of surplus is made.Multiway forging is used at 980 DEG C to alloy after carrying out 3 remeltings using water jacketed copper crucible vacuum induction melting furnace.Its room temperature of high-temperature titanium alloy prepared by the present invention and high-temperature behavior are excellent, show excellent military service performance, have broad application prospects.
Description
Technical field
New type high temperature titanium alloy material the present invention relates to a kind of excellent combination property and preparation method thereof, belongs to titanium alloy
Technical field.
Background technology
Titanium alloy has that fusing point is high, hardness is high, density is small, specific strength is high, the excellent performance such as corrosion-resistant, so extensive
The parts such as diskware, blade and casing for manufacturing aero-engine compressor, instead of steel or other high temperature alloys, alleviate
The quality of engine, improves the thrust-weight ratio of engine.High-temperature titanium alloy development is always in advanced aero engine demand
Carried out under traction, temperature in use steps up, 400 DEG C of raisings from the 20 generation fifties using Ti-6Al-4V alloys as representative
600 DEG C using IMI834 alloys as representative are arrived.More typical 600 DEG C of titanium alloys used have empire of Britain metal company
The Ti60 of IMI834 alloys, the Ti-1100 alloys of Timet companies of the U.S. and China, Ti600 alloys.Alloy system is Ti-
Al-Sn-Zr-Mo-Si systems.In recent years, with the fast development of aircraft industry, new advanced aero engine is to high-temperature titanium alloy
Researched and proposed new demand, in order to meet this demand, 600 DEG C and temperatures above are all competitively being developed for a long time in countries in the world
The high-temperature titanium alloy used.In 600 DEG C of temperatures above, solution strengthening on the basis of Al-Sn-Zr-Mo-Si systems, α are established2
Mutually strengthen with Precipitation of Silicide and reach the limit substantially, if further improving alloying level is difficult to ensure that most basic heat endurance
It is required that；Therefore the efficient hardening of material and obdurability matching are to develop the technical barrier of more than 600 DEG C high-temperature titanium alloys.
The content of the invention
The present invention prepares the efficient hardening of high-temperature titanium alloy material for existing method and obdurability is unable to matched well
Problem, and the design and forging method of a kind of high-temperature titanium alloy provided.
To realize goal of the invention as described above, the present invention uses technical solution as described below.
The high-temperature titanium alloy of the excellent combination property of the present invention, by mass percentage by Al：6.5%~7%, Sn：3%~
5%, Zr：6%~9%, Mo+W+Nb：1.2~4%, Si：0.2~0.4%, Re：0.1~0.3% and surplus be made of Ti.
The preparation process of above-mentioned high-temperature titanium alloy is to carry out according to the following steps：
(1), by element mass percentage composition Al：6.5%~7%, Sn：3%~5%, Zr：6%~9%, Mo+W+
Nb：1.2~4%, Si：0.2~0.4%, Re：0.1~0.3% and surplus Ti, weighs raw material rafifinal, TiSn, sponge respectively
Zirconium, Al-Mo, Al-W, Al-Nb, HIGH-PURITY SILICON, titanium sponge, Ti-Re；By rafifinal, TiSn, sponge zirconium, Al-Mo, Al-W, Al-
Nb, HIGH-PURITY SILICON, titanium sponge are respectively put into corresponding crucible, are then placed in resistance furnace and are heated to 120 DEG C, and tide is removed to blank
Gas；
(2), the blank for removing moisture and Ti-Re are uniformly mixed, in the mould being progressively uniformly put into and in hydraulic press
On be pressed into cylinder blank；
(3), cylinder blank is put into the vacuum induction melting furnace cleaned up, it is vacuumized；Exist afterwards
Argon gas protection is lower first to carry out 2~5min of baking material under the power of 40~60KW, is then carried out again under the power of 160~180KW
Melting, it is 45~90s to make melt suspension time；To make component uniform, 3 meltings are carried out to ingot casting, are put into after last time pre-
Hot rear mold is cast to obtain alloy cast ingot；
(4), the multidirectional forging of isothermal is carried out after the alloy cast ingot that step (3) obtains being cut riser.Concretely comprise the following steps：1. forge
Antioxidizing paint is sprayed after preceding 1~3min by ingot casting preheating, graphite is then smeared and plays lubricating action and bind high temperature cotton；2. will step
The rapid ingot casting 1. obtained is put into 30~50min of insulation in the resistance furnace for rise to 950 DEG C~1000 DEG C；3. by step 2. good heat insulation
Ingot casting is transported to the forging that the first step is carried out on forging equipment, rate of deformation 0.01S-1, a jumping-up is carried out once to ingot casting
Pulling, the deflection of jumping-up is 30%~50%, and the deflection of pulling is 20%~40%；4. the forging for then 3. obtaining step
Base returns the stove of 2. 950 DEG C~1000 DEG C of step, after keeping the temperature 10~15min, carries out such as forging method of step 3., is then air-cooled to
Room temperature.
It is preferred that：
Step (3) first carries out the extraction of opposite low vacuum, then carries out high vacuum and be evacuated to 10-2-10-1Argon filling is carried out after Pa again
Gas melting；
Baking material 3min is first carried out under the power in 50KW under argon gas protection in step (3).
Step (4) sprays antioxidizing paint after spindle 1. is preheated 1min at 980 DEG C before middle forging, up and down the two of ingot casting
High temperature cotton is bound after smearing graphite in end.
The 2. middle resistance furnace of step (4) rises to 980 DEG C, and ingot casting insulation 40min. at such a temperature
The 3. middle Upsetting amount 40% of step (4), pulls out deflection 30%.
The 4. middle forging stock of step (4) melts down, and keeps the temperature 10min.
Mo+W+Nb of the present invention：1.2~4% refer to that the total amounts of three kinds of elements is 1.2~4%, each element is not
0.。
The present invention is prepared for a kind of new type high temperature titanium alloy material of excellent combination property, solves high-temperature titanium alloy and exists
The problem of more than 600 DEG C obdurabilities are unable to matched well, high-temperature titanium alloy room temperature tensile intensity of the invention are 1118.37MPa,
Yield strength is 1026.18MPa, elongation percentage 11.88%；650 DEG C of tensile strength is up to 704.75MPa, and yield strength reaches
592.7MPa, elongation percentage is up to 15.06%.
Brief description of the drawings
Fig. 1 is to forge stress-strain diagram after (650 DEG C) of the gentle high temperature of rear chamber stretches at 980 DEG C
Embodiment
With reference to embodiment, the invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
The preparation of the new type high temperature titanium alloy material of excellent combination property of the present invention carries out according to the following steps：
First, by element mass percentage composition Al：6.5%, Sn：2.5%, Zr：9%, Mo:0.5%, W：1%, Nb：
1%, Si：0.25%, Re：0.1%, Ti：79.15%, raw material is weighed respectively.By the rafifinal weighed up, TiSn, sponge zirconium, Al-
Mo, Al-W, Al-Nb, HIGH-PURITY SILICON, titanium sponge are respectively put into corresponding crucible (except Ti-Re), be then placed in resistance furnace and be heated to
120 DEG C, moisture is removed to blank.
2nd, it will be uniformly mixed, be progressively uniformly put into corresponding mould and in liquid except the blank and Ti-Re that remove moisture
Cylinder blank is pressed on press.
3rd, blank is put into the vacuum induction melting furnace cleaned up, it is vacuumized.Treat that vacuum reaches it
Baking material 3min is first carried out under the power in 50KW under argon gas protection afterwards, melting is then carried out under the power of 170KW again, makes to melt
Body suspension time is 60s.To make component uniform, 3 meltings are carried out to ingot casting, preheating rear mold is put into for the last time and casts
Obtain Ф 60 × 150mm alloy cast ingots.
4th, the alloy cast ingot for obtaining step 3 carries out the multidirectional forging of isothermal after cutting riser.Concretely comprise the following steps：1. before forging
Antioxidizing paint will be sprayed after ingot casting preheating 1min, then smear graphite and play lubricating action and bind high temperature cotton；2. will 1. it obtain
Ingot casting be put into the resistance furnace for rise to 980 DEG C and keep the temperature 40min.Carried out 3. the ingot casting of 2. good heat insulation is transported on forging equipment
The forging of the first step, rate of deformation 0.01S-1, a jumping-up is carried out to ingot casting and is once pulled out, the deflection of jumping-up is 40%,
The deflection of pulling is 30%.4. then melting down the forging stock 3. obtained, after keeping the temperature 10min, forging method such as 3. is carried out, so
After be air-cooled to room temperature.
The high-temperature titanium alloy that is obtained to embodiment 1 carries out Mechanics Performance Testing, its mechanical performance data as shown in Table 1,
Stress-strain diagram is as shown in Figure 1, it can be seen that its excellent combination property.
1 mode of embodiment surveys tensile property as shown in Table 1：
Mechanical property after table (650 DEG C) stretchings of 1 980 DEG C of gentle high temperature of forging rear chamber
Claims (8)
1. a kind of high-temperature titanium alloy material, it is characterised in that by mass percentage by Al：6.5%~7%, Sn：3%~5%,
Zr：6%~9%, Mo+W+Nb：1.2~4%, Si：0.2~0.4%, Re：0.1~0.3% and surplus be made of Ti.
2. prepare a kind of method of high-temperature titanium alloy material described in claim 1, it is characterised in that comprise the following steps：
(1), by element mass percentage composition Al：6.5%~7%, Sn：3%~5%, Zr：6%~9%, Mo+W+Nb：1.2
~4%, Si：0.2~0.4%, Re：0.1~0.3% and surplus Ti, weighs raw material rafifinal, TiSn, sponge zirconium, Al- respectively
Mo, Al-W, Al-Nb, HIGH-PURITY SILICON, titanium sponge, Ti-Re；By rafifinal, TiSn, sponge zirconium, Al-Mo, Al-W, Al-Nb, high-purity
Silicon, titanium sponge are respectively put into corresponding crucible, are then placed in resistance furnace and are heated to 120 DEG C, and moisture is removed to blank；
(2), the blank for removing moisture and Ti-Re are uniformly mixed, pressed in the mould being progressively uniformly put into and on a hydraulic press
Into cylinder blank；
(3), cylinder blank is put into the vacuum induction melting furnace cleaned up, it is vacuumized；Afterwards in argon gas
Protection is lower first to carry out 2~5min of baking material under the power of 40~60KW, then carries out melting under the power of 160~180KW again,
It is 45~90s to make melt suspension time；3 meltings are carried out to ingot casting, preheating rear mold is put into after last time and cast
To Ф 60 × 150mm alloy cast ingots；
(4), the multidirectional forging of isothermal is carried out after the alloy cast ingot that step (3) obtains being cut riser.Concretely comprise the following steps：1. will before forging
Antioxidizing paint is sprayed after 1~3min of ingot casting preheating, graphite is then smeared and plays lubricating action and bind high temperature cotton；2. by step 1.
Obtained ingot casting is put into 30~50min of insulation in the resistance furnace for rise to 950 DEG C~1000 DEG C；3. by the ingot casting of step 2. good heat insulation
It is transported to the forging that the first step is carried out on forging equipment, rate of deformation 0.01S-1, a jumping-up is carried out to ingot casting and is once pulled out,
The deflection of jumping-up is 30%~50%, and the deflection of pulling is 20%~40%；4. the forging stock for then 3. obtaining step returns
The stove that 2. 950 DEG C~1000 DEG C of step, after keeping the temperature 10~15min, carries out such as forging method of step 3., is then air-cooled to room
Temperature.
3. in accordance with the method for claim 2, it is characterised in that step (3) first carries out the extraction of opposite low vacuum, then carries out
High vacuum is evacuated to 10-2-10-1Applying argon gas melting is carried out after Pa again.
4. in accordance with the method for claim 2, it is characterised in that first in the power of 50KW under argon gas protection in step (3)
Lower progress baking material 3min.
5. in accordance with the method for claim 2, it is characterised in that step (4) 1. before middle forging by spindle in 980 DEG C of preheatings
Antioxidizing paint is sprayed after 1min, high temperature cotton is bound after the upper and lower ends of ingot casting smear graphite.
6. in accordance with the method for claim 2, it is characterised in that the 2. middle resistance furnace of step (4) rises to 980 DEG C, and at this
At a temperature of ingot casting insulation 40min.
7. in accordance with the method for claim 2, it is characterised in that the 3. middle Upsetting amount 40% of step (4), pulling deformation
Amount 30%.
8. in accordance with the method for claim 2, it is characterised in that the 4. middle forging stock of step (4) melts down, and keeps the temperature 10min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711180652.8A CN107904440B (en) | 2017-11-23 | 2017-11-23 | High-temperature titanium alloy material and preparation method thereof |
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| CN201711180652.8A CN107904440B (en) | 2017-11-23 | 2017-11-23 | High-temperature titanium alloy material and preparation method thereof |
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| CN107904440B CN107904440B (en) | 2020-07-31 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774702A (en) * | 2018-06-22 | 2018-11-09 | 广西趣创想创客空间管理有限责任公司 | A kind of high temperature oxidation resisting titanium alloy and preparation method thereof |
| CN109536777A (en) * | 2019-01-04 | 2019-03-29 | 青海聚能钛业股份有限公司 | A kind of high-temperature titanium alloy and preparation method thereof |
| CN110484774A (en) * | 2019-09-24 | 2019-11-22 | 西北有色金属研究院 | A kind of resistance to 650 DEG C of high-temperature titanium alloys |
| CN111020289A (en) * | 2019-12-18 | 2020-04-17 | 佛山科学技术学院 | Heat-resistant titanium alloy |
| CN111188001A (en) * | 2020-03-17 | 2020-05-22 | 山东理工大学 | Method for controlling silicide characteristics of high-temperature titanium-based composite material |
| CN111906610A (en) * | 2020-08-14 | 2020-11-10 | 丽水学院 | Titanium alloy plate preparation process and processing equipment thereof |
| CN113878037A (en) * | 2021-10-11 | 2022-01-04 | 飞亚达精密科技股份有限公司 | Titanium alloy and manufacturing method of titanium alloy watch appearance piece |
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| CN106555076A (en) * | 2017-01-09 | 2017-04-05 | 北京工业大学 | A kind of resistance to 650 DEG C of high-temperature titanium alloy materials and preparation method thereof |
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| US20040136859A1 (en) * | 2000-04-12 | 2004-07-15 | Cana Lab Corporation | Titanium alloys having improved castability |
| JP2004100035A (en) * | 2002-07-17 | 2004-04-02 | Toyota Central Res & Dev Lab Inc | Green compact and powder compaction process, metallic sintered body and its manufacturing method, and worked component part and method of working |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774702A (en) * | 2018-06-22 | 2018-11-09 | 广西趣创想创客空间管理有限责任公司 | A kind of high temperature oxidation resisting titanium alloy and preparation method thereof |
| CN109536777A (en) * | 2019-01-04 | 2019-03-29 | 青海聚能钛业股份有限公司 | A kind of high-temperature titanium alloy and preparation method thereof |
| CN110484774A (en) * | 2019-09-24 | 2019-11-22 | 西北有色金属研究院 | A kind of resistance to 650 DEG C of high-temperature titanium alloys |
| CN111020289A (en) * | 2019-12-18 | 2020-04-17 | 佛山科学技术学院 | Heat-resistant titanium alloy |
| CN111188001A (en) * | 2020-03-17 | 2020-05-22 | 山东理工大学 | Method for controlling silicide characteristics of high-temperature titanium-based composite material |
| CN111906610A (en) * | 2020-08-14 | 2020-11-10 | 丽水学院 | Titanium alloy plate preparation process and processing equipment thereof |
| CN111906610B (en) * | 2020-08-14 | 2021-10-29 | 丽水学院 | Titanium alloy plate preparation process and processing equipment thereof |
| CN113878037A (en) * | 2021-10-11 | 2022-01-04 | 飞亚达精密科技股份有限公司 | Titanium alloy and manufacturing method of titanium alloy watch appearance piece |
| CN113878037B (en) * | 2021-10-11 | 2023-11-03 | 飞亚达精密科技股份有限公司 | Titanium alloy and manufacturing method of titanium alloy watch appearance piece |
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