CN108411156A - A kind of nearly β types high strength titanium alloy and preparation method thereof - Google Patents
A kind of nearly β types high strength titanium alloy and preparation method thereof Download PDFInfo
- Publication number
- CN108411156A CN108411156A CN201810210838.1A CN201810210838A CN108411156A CN 108411156 A CN108411156 A CN 108411156A CN 201810210838 A CN201810210838 A CN 201810210838A CN 108411156 A CN108411156 A CN 108411156A
- Authority
- CN
- China
- Prior art keywords
- nearly
- titanium alloy
- high strength
- strength titanium
- types high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
The invention discloses a kind of nearly β types high strength titanium alloy and preparation method thereof, the weight percent group of the nearly β types high strength titanium alloy becomes：Mo：3~9%, Al：4~7.75%, V：3~5%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable impurity.Preparation method includes：According to proportioning, titanium sponge, Al V intermediate alloys, Al Mo intermediate alloys, pure Al are weighed, electrode is pressed into after mixing；Through secondary smelting, Ti Al Mo V alloy ingot castings are made；Cogging is forged for the first time；Second of forging；Third time is forged, and small size bar is obtained；Solution treatment, it is air-cooled；Then ageing treatment, it is air-cooled, obtain nearly β types high strength titanium alloy.The nearly β types high strength titanium alloy has many advantages, such as that ingredient is uniform, reduced in segregation, forging is not easy to crack, intensity is high, plasticity is high, and manufacture craft is simple, at low cost.
Description
Technical field
The invention belongs to metal material processing technology of preparing field more particularly to a kind of nearly β types high strength titanium alloy and its
Preparation method.
Background technology
The business high intensity near β titanium alloy being widely used at present has Ti-1023 (Ti-10V-2Fe-3Al), Ti-5553
(Ti-5Al-5Mo-5V-3Cr) and Ti-7333 (Ti-7Mo-3Cr-3Nb), these alloys all or have used more large content of Fe
Belong to the eutectoid type element in titanium alloy with elements, Fe and Cr such as Cr, the intensity of alloy can be improved, but since Fe and Cr exist
It is easy to happen segregation in the fusion-casting process of titanium alloy, or even eutectoid reaction occurs with Ti elements and generates FeTi and TiCr2Etc. brittleness
Intermetallic compound, therefore the addition of Fe and Cr considerably increases the founding difficulty of titanium alloy.Simultaneously because alloy cast ingot is inclined
Analysis and issuable FeTi and TiCr2Etc. weld metal zone brittle intermetallic things, make titanium alloy in subsequent hot-working forging process
In be easy cracking, which increases alloy difficulty of processing.Since Cr and Fe elements are easy segregation, so far, domestic majority titanium
Alloy company cannot still prepare the titanium alloy of Fe >=1% and Cr >=3% of performance stabilization.So releasing a kind of without Fe, Cr
High strength titanium alloy etc. easy segregation element seems extremely urgent.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of uniform ingredient, reduced in segregation, forging
Make that not easy to crack, intensity is high, plasticity is high, nearly β types high strength titanium alloy and preparation method thereof at low cost and easy recycling.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of nearly β types high strength titanium alloy, the weight percent group of the titanium alloy become：Mo：3~9%, Al：4~
7.75%, V：3~5%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable impurity.
Preferably, the weight percent group of the nearly β types high strength titanium alloy becomes：Mo：5~7%, Al：5~7%, V：
3~5%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable impurity.
Preferably, the weight percent group of the nearly β types high strength titanium alloy becomes：Mo：6%, Al：6%, V：4%, O：
≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable element.
Preferably, the molybdenum equivalent [Mo] of the nearly β types high strength titanium alloyWhenIt is 5~12.5, the equivalent thickness of aluminium [A1]WhenIt is 4~8；
[Mo]WhenCalculation formula be：[Mo]When=0.67V+1Mo；
[A1]WhenCalculation formula be：[A1]When=Al.
The inventive concept total as one, the present invention also provides a kind of preparation sides of above-mentioned nearly β types high strength titanium alloy
Method includes the following steps：
(1) according to proportioning, titanium sponge, Al-V intermediate alloys, Al-Mo intermediate alloys are weighed, pure Al obtains mixed raw material；
(2) mixed raw material obtained by step (1) is pressed into electrode；
(3) electrode obtained by step (2) is passed through into secondary smelting, Ti-Al-Mo-V alloy cast ingots is made；
(4) the Ti-Al-Mo-V alloy cast ingots cogging obtained by step (3) is forged for the first time, obtains large scale forging；
(5) it carries out second to the large scale forging obtained by step (4) to forge, obtains large-size bar；
(6) third time forging is carried out to the large-size bar obtained by step (5), obtains small size bar；
(7) air-cooled to carrying out solution treatment after the small size bar sampling obtained by step (6)；Then ageing treatment is carried out,
It is air-cooled, obtain a kind of nearly β types high strength titanium alloy.
Preferably, in the step (4), the temperature of the first time forging is 1000 DEG C~1050 DEG C, deflection 40
~60%.
Preferably, in the step (5), the temperature of second forging is 850~900 DEG C, deflection is 65~
85%.
Preferably, in the step (6), the temperature of third time forging is 800~850 DEG C, deflection is 75~
95%.
Preferably, in the step (7), the temperature of the solution treatment is 700 DEG C~900 DEG C, and the time is 0.5~1h.
Preferably, in the step (7), the temperature of the ageing treatment is 460~620 DEG C, and the time is 4~8h.
Compared with the prior art, the advantages of the present invention are as follows：
1, nearly β types high strength titanium alloy proposed by the invention includes mainly Ti, Al, V, the essential elements such as Mo, at setting up separately
Meter is based on Ti-6Al-4V alloys, and raw material and processing technology thereof cost and Ti-6Al-4V alloys are close, but its
Intensity has reached 1228~1539MPa, while the elongation of alloy can reach 4.5~10.8%, the far super Ti-6Al- of intensity
The 900MPa of 4V, is with a wide range of applications.
2, the business high intensity near β titanium alloy being widely used at present has Ti-1023 (Ti-10V-2Fe-3Al), Ti-5553
(Ti-5Al-5Mo-5V-3Cr) and Ti-7333 (Ti-7Mo-3Cr-3Nb), these alloys all or have used more large content of Fe
With the elements such as Cr, but since Fe and Cr is easy to happen segregation in the fusion-casting process of titanium alloy, cause alloy property unstable.
Most domestic titanium alloy enterprise is still unable to founding and goes out the higher titanium alloy containing Fe or containing Cr at present.And it is proposed by the invention close
β type high strength titanium alloys are free of Fe, and the easy segregation element such as Cr, wherein Mo and V are that most common isomorphism β stablizes in titanium alloy
Element is not susceptible to be segregated in fusion-casting process, while not easy to crack in forging process, has preparation process simple, performance
The advantages that stablizing.
3, in addition, alloying element negligible amounts contained by nearly β types high strength titanium alloy proposed by the invention, have and be easy back
The features such as receipts.
Description of the drawings
Fig. 1 is the microstructure of nearly β types high strength titanium alloy prepared by embodiment 1.
Fig. 2 is the microstructure of nearly β types high strength titanium alloy prepared by embodiment 2.
Fig. 3 is the microstructure of nearly β types high strength titanium alloy prepared by embodiment 3.
Specific implementation mode
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection domain.
Embodiment 1：
A kind of nearly β types high strength titanium alloy of the present embodiment, includes the chemical element of following weight percentage:Mo：6%,
Al：6%, V：4%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable impurity.
A kind of preparation method of nearly β types high strength titanium alloy of above-mentioned the present embodiment is：
Titanium sponge, Al-V intermediate alloys, Al-Mo intermediate alloys, pure Al, wherein are weighed according to the above ratio, and titanium is by titanium sponge
It provides, V is provided by Al-V intermediate alloys, and Mo is provided by Al-Mo intermediate alloys, and Al is carried by pure Al and Al-V, Al-Mo intermediate alloys
For obtaining mixed raw material；By electrode is pressed into after design ingredient mixing, the electrode is melted using vacuum consumable arc-melting stove
Refine it is secondary a diameter of 160mm alloy cast ingots are prepared, in the flat-die forgings equipment such as hydraulic press or forging hammer carry out cogging forging,
Forging temperature is 1050 DEG C, and deflection is about 50%.Later alloy carried out at 850~900 DEG C it is secondary be forged into 1000mm ×
The square rod deflection of 80mm × 40mm is 75%, later alloy be cut into 40mm × 40mm × 20mm squares and 800~
850 DEG C of strips for being forged into about 320mm × 10mm × 10mm three times, deflection are about 75%.By bar obtained above into
Row fixation rates, the alloy is air-cooled after 700 DEG C of solution treatment 0.5 hour, is air-cooled within 6 hours in 500 DEG C of ageing treatments
Room temperature measures alloy strength and plasticity.The bar of gained samples, and heat treatment carries out the table of structure and performance after heat treatment
Sign.
From figure 1 it appears that the microstructure of the low-cost high-strength titanium master alloy after the present embodiment heat treatment is main
It is thick sheet α phases, and the globular α phase generated when forging, and secondaryαphase negligible amounts, as known from Table 1, the strength of alloy
Reach 1228MPa, elongation reaches 10.8%, has good strong plasticity matching, in automobile, chemical industry, electrical, aerospace etc.
Field has boundless application prospect as high performance alloys material.
Embodiment 2：
A kind of nearly β types high strength titanium alloy of the present embodiment, includes the chemical element of following weight percentage:Mo：6%,
Al：6%, V：4%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable impurity.
A kind of preparation method of nearly β types high strength titanium alloy of above-mentioned the present embodiment is：
Titanium sponge, Al-V intermediate alloys, Al-Mo intermediate alloys, pure Al, wherein are weighed according to the above ratio, and titanium is by titanium sponge
It provides, V is provided by Al-V intermediate alloys, and Mo is provided by Al-Mo intermediate alloys, and Al is carried by pure Al and Al-V, Al-Mo intermediate alloys
For obtaining mixed raw material；By electrode is pressed into after design ingredient mixing, the electrode is melted using vacuum consumable arc-melting stove
Refine it is secondary a diameter of 160mm alloy cast ingots are prepared, in the flat-die forgings equipment such as hydraulic press or forging hammer carry out cogging forging,
Forging temperature is 1050 DEG C, and deflection is about 50%.Later alloy carried out at 850~900 DEG C it is secondary be forged into 1000mm ×
The square rod deflection of 80mm × 40mm is 75%, later alloy be cut into 40mm × 40mm × 20mm squares and 800~
850 DEG C of strips for being forged into about 320mm × 10mm × 10mm three times, deflection are about 75%.By bar obtained above into
Row fixation rates, the alloy is air-cooled after 830 DEG C of solution treatment 0.5 hour, is air-cooled within 6 hours in 530 DEG C of ageing treatments
Room temperature measures alloy strength and plasticity.The bar of gained samples, and heat treatment carries out the table of structure and performance after heat treatment
Sign.
From figure 2 it can be seen that the microstructure of the low-cost high-strength titanium master alloy after the present embodiment heat treatment is main
It is made of nascent globular α phase and secondary acicular α phase, as known from Table 1, which reaches 1417MPa, elongation
Rate reaches 6.4%, has good strong plasticity matching, is closed as high-performance in fields such as automobile, chemical industry, electrical, aerospaces
Golden material has boundless application prospect.
Embodiment 3：
A kind of nearly β types high strength titanium alloy of the present embodiment, includes the chemical element of following weight percentage:Mo：6%,
Al：6%, V：4%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium and inevitable impurity.
A kind of preparation method of nearly β types high strength titanium alloy of above-mentioned the present embodiment is：
Titanium sponge, Al-V intermediate alloys, Al-Mo intermediate alloys, pure Al, wherein are weighed according to the above ratio, and titanium is by titanium sponge
It provides, V is provided by Al-V intermediate alloys, and Mo is provided by Al-Mo intermediate alloys, and Al is carried by pure Al and Al-V, Al-Mo intermediate alloys
For obtaining mixed raw material；By electrode is pressed into after design ingredient mixing, the electrode is melted using vacuum consumable arc-melting stove
Refine it is secondary a diameter of 160mm alloy cast ingots are prepared, in the flat-die forgings equipment such as hydraulic press or forging hammer carry out cogging forging,
Forging temperature is 1050 DEG C, and deflection is about 50%.Later alloy carried out at 850~900 DEG C it is secondary be forged into 1000mm ×
The square rod deflection of 80mm × 40mm is 75%, later alloy be cut into 40mm × 40mm × 20mm squares and 800~
850 DEG C of strips for being forged into about 320mm × 10mm × 10mm three times, deflection are about 75%.By bar obtained above into
Row fixation rates, the alloy is air-cooled after 850 DEG C of solution treatment 0.5 hour, is air-cooled within 6 hours in 500 DEG C of ageing treatments
Room temperature measures alloy strength and plasticity.The bar of gained samples, and heat treatment carries out the table of structure and performance after heat treatment
Sign.
From figure 3, it can be seen that the microstructure of the low-cost high-strength titanium master alloy after the present embodiment heat treatment is main
It is made of nascent globular α phase and secondary acicular α phase, as known from Table 1, which obtains the tensile strength of superelevation, reaches
1539MPa, while elongation reaches 4.5%, in fields such as automobile, chemical industry, electrical, aerospaces as high performance alloys material
With boundless application prospect.
The mechanical property table of the nearly β types high strength titanium alloy of 1 Examples 1 to 3 of table
| Embodiment | Heat treating regime | Rm/MPa | Rp0.2/Mpa | A/% |
| Embodiment 1 | 700℃/0.5h/AC+500℃/6h/AC | 1228 | 1143 | 10.8 |
| Embodiment 2 | 830℃/0.5h/AC+530℃/6h/AC | 1417 | 1298 | 6.4 |
| Embodiment 3 | 850℃/0.5h/AC+500℃/6h/AC | 1539 | 1436 | 4.5 |
The above is only several embodiments of the application, not does any type of limitation to the application, although this Shen
Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off
In the range of technical scheme, makes a little variation using the technology contents of the disclosure above or modification is equal to
Case study on implementation is imitated, is belonged in technical proposal scope.
Claims (10)
1. a kind of nearly β types high strength titanium alloy, which is characterized in that the weight percent of the nearly β types high strength titanium alloy forms
For：Mo：3~9%, Al：4~7.75%, V：3~5%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus be titanium and
Inevitable impurity.
2. nearly β types high strength titanium alloy according to claim 1, which is characterized in that the nearly β types high strength titanium alloy
Weight percent group becomes：Mo：5~7%, Al：5~7%, V：3~5%, O：≤ 0.2%, C：≤ 0.08%, N：≤
0.05%, surplus is titanium and inevitable impurity.
3. nearly β types high strength titanium alloy according to claim 2, which is characterized in that the nearly β types high strength titanium alloy
Weight percent group becomes：Mo：6%, Al：6%, V：4%, O：≤ 0.2%, C：≤ 0.08%, N：≤ 0.05%, surplus is titanium
With inevitable element.
4. according to the nearly β types high strength titanium alloy of claims 1 to 3 any one of them, which is characterized in that the molybdenum of the titanium alloy
Equivalent [Mo]WhenIt is 5~12.5, the equivalent thickness of aluminium [A1]WhenIt is 4~8；
[Mo]WhenCalculation formula be：[Mo]When=0.67V+1Mo；
[A1]WhenCalculation formula be：[A1]When=Al.
5. a kind of preparation method of such as nearly β types high strength titanium alloy of Claims 1 to 4 any one of them, includes the following steps：
(1) according to proportioning, titanium sponge, Al-V intermediate alloys, Al-Mo intermediate alloys, pure Al is weighed, mixed raw material is obtained；
(2) mixed raw material obtained by step (1) is pressed into electrode；
(3) electrode obtained by step (2) is passed through into secondary smelting, Ti-Al-Mo-V alloy cast ingots is made；
(4) the Ti-Al-Mo-V alloy cast ingots cogging obtained by step (3) is forged for the first time, obtains large scale forging；
(5) it carries out second to the large scale forging obtained by step (4) to forge, obtains large-size bar；
(6) third time forging is carried out to the large-size bar obtained by step (5), obtains small size bar；
(7) air-cooled to carrying out solution treatment after the small size bar sampling obtained by step (6)；Then ageing treatment is carried out, it is empty
It is cold, obtain the nearly β types high strength titanium alloy.
6. its preparation method of nearly β types high strength titanium alloy according to claim 5, is characterized in that, the step (4)
In, the temperature of the first time forging is 1000 DEG C~1050 DEG C, and deflection is 40~60%.
7. its preparation method of nearly β types high strength titanium alloy according to claim 6, is characterized in that, the step (5)
In, the temperature of second of forging is 850~900 DEG C, and deflection is 65~85%.
8. its preparation method of nearly β types high strength titanium alloy according to claim 7, is characterized in that, the step (6)
In, the temperature of the third time forging is 800~850 DEG C, and deflection is 75~95%.
9. according to the preparation method of the nearly β types high strength titanium alloy of claim 5~8 any one of them, which is characterized in that described
In step (7), the temperature of the solution treatment is 700 DEG C~900 DEG C, and the time is 0.5~1h.
10. the preparation method of nearly β types high strength titanium alloy according to claim 9, which is characterized in that the step (7)
In, the temperature of the ageing treatment is 460~620 DEG C, and the time is 4~8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810210838.1A CN108411156A (en) | 2018-03-14 | 2018-03-14 | A kind of nearly β types high strength titanium alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810210838.1A CN108411156A (en) | 2018-03-14 | 2018-03-14 | A kind of nearly β types high strength titanium alloy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108411156A true CN108411156A (en) | 2018-08-17 |
Family
ID=63131529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810210838.1A Pending CN108411156A (en) | 2018-03-14 | 2018-03-14 | A kind of nearly β types high strength titanium alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108411156A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643300A (en) * | 2021-01-05 | 2021-04-13 | 中国第一重型机械股份公司 | Thermal coupling method for metal solid-solid composite additive blank making |
| CN112992280A (en) * | 2021-03-16 | 2021-06-18 | 苏州健雄职业技术学院 | Ti-Al-V ternary alloy molecular dynamics alpha + beta biphase geometric model construction and potential function fitting method |
| CN113604757A (en) * | 2021-07-21 | 2021-11-05 | 中南大学 | Ultrahigh-strength heterostructure titanium alloy and preparation method thereof |
| CN115612876A (en) * | 2022-10-31 | 2023-01-17 | 洛阳双瑞精铸钛业有限公司 | Preparation method of beta-type titanium alloy plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643082A (en) * | 2013-12-13 | 2014-03-19 | 浙江隆华钛业有限公司 | Titanium alloy for high-strength petroleum casing pipe and method for manufacturing petroleum casing pipe by using titanium alloy |
| CN107460370A (en) * | 2017-08-17 | 2017-12-12 | 中南大学 | A kind of low-cost high-strength high-ductility metastable β Titanium-alloy and preparation method thereof |
-
2018
- 2018-03-14 CN CN201810210838.1A patent/CN108411156A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643082A (en) * | 2013-12-13 | 2014-03-19 | 浙江隆华钛业有限公司 | Titanium alloy for high-strength petroleum casing pipe and method for manufacturing petroleum casing pipe by using titanium alloy |
| CN107460370A (en) * | 2017-08-17 | 2017-12-12 | 中南大学 | A kind of low-cost high-strength high-ductility metastable β Titanium-alloy and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643300A (en) * | 2021-01-05 | 2021-04-13 | 中国第一重型机械股份公司 | Thermal coupling method for metal solid-solid composite additive blank making |
| CN112992280A (en) * | 2021-03-16 | 2021-06-18 | 苏州健雄职业技术学院 | Ti-Al-V ternary alloy molecular dynamics alpha + beta biphase geometric model construction and potential function fitting method |
| CN112992280B (en) * | 2021-03-16 | 2022-01-11 | 苏州健雄职业技术学院 | Ti-Al-V ternary alloy molecular dynamics alpha + beta biphase geometric model construction and potential function fitting method |
| CN113604757A (en) * | 2021-07-21 | 2021-11-05 | 中南大学 | Ultrahigh-strength heterostructure titanium alloy and preparation method thereof |
| CN113604757B (en) * | 2021-07-21 | 2022-01-25 | 中南大学 | Ultrahigh-strength heterostructure titanium alloy and preparation method thereof |
| CN115612876A (en) * | 2022-10-31 | 2023-01-17 | 洛阳双瑞精铸钛业有限公司 | Preparation method of beta-type titanium alloy plate |
| CN115612876B (en) * | 2022-10-31 | 2023-11-14 | 洛阳双瑞精铸钛业有限公司 | Preparation method of beta-type titanium alloy plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108866417B (en) | High-strength corrosion-resistant medium-entropy alloy and preparation method thereof | |
| CN104726746B (en) | High-strength metastable beta-type titanium alloy bar and production method thereof | |
| CN108411156A (en) | A kind of nearly β types high strength titanium alloy and preparation method thereof | |
| EP3791003B1 (en) | High strength titanium alloys | |
| CN103820735A (en) | Super strength C-Al-Mn-Si series low-density steel and its preparation method | |
| CN107460370A (en) | A kind of low-cost high-strength high-ductility metastable β Titanium-alloy and preparation method thereof | |
| CN103667788B (en) | A kind of titanium alloy and Technology for Heating Processing | |
| CN111826550B (en) | Moderate-strength nitric acid corrosion resistant titanium alloy | |
| CN103114224B (en) | Multi-component alloy composite reinforced high-strength titanium alloy and preparation method thereof | |
| CN109852845A (en) | Tough titanium alloy of a kind of nearly β type height and preparation method thereof | |
| CN108842095A (en) | High strength and low cost alpha+beta titanium alloys and preparation method thereof | |
| CN102409258B (en) | Structural homogeneity control method of boron-containing high strength hydrogen resistant brittle alloy | |
| CN108531774A (en) | A kind of high-hardness titanium alloy and preparation method thereof | |
| CN109930030A (en) | A kind of alpha-beta type is high-strength, high impact toughness titanium alloy and preparation method thereof | |
| CN105506379A (en) | Damage tolerant medium-strength titanium alloy | |
| CN111020414A (en) | Preparation method of short fiber reinforced high-temperature titanium alloy bar for 700-750 DEG C | |
| CN104862529A (en) | Super-high strength and high-plasticity titanium alloy | |
| CN107746993A (en) | A kind of high-strength high-plasticity alpha and beta type titan alloy and preparation method thereof | |
| CN111349816A (en) | Novel Ti-1300F high-strength high-toughness titanium alloy and preparation method thereof | |
| CN103484785A (en) | High-strength alloy containing rare-earth elements and preparation method thereof | |
| CN107739995A (en) | A kind of tube material of low-cost high-strength and preparation method thereof | |
| CN105400993B (en) | A kind of low-cost titanium alloy of resistance to high speed impact | |
| CN103146972A (en) | Multielement rare-earth magnesium alloy and preparation method thereof | |
| CN108531773A (en) | A kind of Ti3Al intermetallic compound high-temperature structural materials | |
| CN113151711A (en) | Novel low-cost high-strength high-plasticity titanium alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180817 |