CN104831122A - Low-cost high-performance titanium alloy and preparation method thereof - Google Patents
Low-cost high-performance titanium alloy and preparation method thereof Download PDFInfo
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 67
- 239000000956 alloy Substances 0.000 claims abstract description 67
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010936 titanium Substances 0.000 claims abstract description 18
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 229910052796 boron Inorganic materials 0.000 claims abstract description 8
- 229910052786 argon Inorganic materials 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 29
- 238000005266 casting Methods 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005275 alloying Methods 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000005339 levitation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000006187 pill Substances 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 229910000883 Ti6Al4V Inorganic materials 0.000 abstract description 12
- 238000012512 characterization method Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract 2
- 238000005242 forging Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000000470 constituent Substances 0.000 description 9
- 238000000137 annealing Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910000905 alloy phase Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910001040 Beta-titanium Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910000756 V alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
The invention relates to a low-cost high-performance titanium alloy and a preparation method thereof. The alloy is a quaternary titanium alloy which is formed by taking titanium as a main element and adding three elements. The alloy comprises the following components in percentage by mass: fe: 1-5%, O: 0.1-0.4%, B: 0.1 to 0.3 percent, and the balance of titanium and inevitable impurities. The preparation method comprises the following steps: adding the raw materials into a cold crucible suspension smelting furnace which is introduced with argon according to the designed alloy component proportion, repeatedly smelting for several times to obtain an ingot, cogging and forging the ingot above a phase change point to form a bar blank, rolling the bar blank to prepare a bar, sampling the bar, carrying out heat treatment, and finally carrying out structural and performance characterization. The preparation process is simple, the prepared alloy has uniform components, the tensile strength reaches more than 950MPa, the elongation is not less than 15%, and the reduction of area is not less than 25%. The basic mechanical property is equivalent to Ti-6Al-4V, but the cost is reduced by more than 15 percent compared with the basic mechanical property, and the titanium alloy can replace part of expensive titanium alloy in some fields.
Description
Technical field
The invention belongs to titanium materials technology field, be specifically related to Composition Design of a kind of low-cost and high-performance titanium alloy and preparation method thereof.
Background technology
Titanium or titanium alloy because of have low density, high specific strength, high temperature resistant, corrosion-resistant, without the excellent properties such as magnetic, bio-compatible, get a lot of applications in the field such as Aeronautics and Astronautics, naval vessel, but the high cost of titanium limits the range of application of titanium or titanium alloy, especially at civil area.Current commercial titanium alloy interalloy element majority uses the noble metals such as V, Mo, Nb, Zr, Sn and Ta, the cost of titanium alloy is remained high, have impact on the use range of titanium alloy.
The approach of current reduction titanium alloy cost has: reduced material cost by the mode of production improving starting material (titanium sponge), adopt inexpensive alloy element, simplify titanic alloy machining technique, optimized the various methods such as Ti product processing technology.Wherein adopt inexpensive alloy element aspect, adopt and reach relative to the Mo-Fe alloy of Al-V alloy cheapness the object reduced costs as master alloy.But the price of Mo is still more expensive, therefore cost reduces limited, only has the resourceful cheap element such as Fe, Al, Si, Cr, C, O, N and B just can reach the object significantly reducing titanium alloy cost.
Publication number is CN1962913A, denomination of invention is the Chinese invention patent of " a kind of low-cost titanium alloy of performance-adjustable ", Al, Fe, Cr, Ni, S, B, C, Mo eight kinds of elements are added in titanium, wherein alloying constituent is by massfraction: Al:0-3.5%, Fe:0.3-2.0%, Cr:0.1-0.5%, Ni:0-0.3%, S:0-1.0%, B:0-0.5%, C:0-0.5%, Mo:0-0.5%, alloy mechanical property variable range is: tensile strength is 350MPa-1250MPa, unit elongation 5%-30%, and relative reduction in area is 10%-55%; But containing Ni and Mo that price is more expensive in alloy, improve certain cost of alloy.
Publication number is CN102828058A, denomination of invention is the Chinese invention patent of " a kind of preparation method of low-cost titanium alloy ", utilize Mo-Fe master alloy powder and ti powder Homogeneous phase mixing, compacting final vacuum sintering, wherein alloying constituent is by massfraction: Fe:1.5%, Mo:2.5%, improve plasticity and the fatigue property of alloy, tensile strength reaches more than 850MPa, and unit elongation is not less than 15%, and relative reduction in area is not less than 20%; But wherein Mo element price is higher, improve certain cost of alloy.
Publication number is CN103045905A, denomination of invention is the Chinese invention patent of " a kind of low-cost titanium alloy and preparation method thereof ", Al, Cr, Fe, Si and B alloy element is added in titanium, wherein alloying constituent is by massfraction: Al:0-3%, Cr:1.6-4%, Fe:1-2%, Si:0.01-0.13%, B:0-0.1%, the alloy fundamental property obtained is suitable with Ti-6Al-4V, but cost has clear superiority by comparison.
Summary of the invention
The object of the invention is to adopt cheap Fe-B master alloy or fe as master alloy starting point, oxygen element is with TiO
2form adds, and provides a kind of Composition Design and preparation method of low-cost and high-performance titanium alloy.
The object of the invention is to be achieved through the following technical solutions:
A titanium alloy for low-cost and high-performance, alloying constituent content by mass percentage: containing Fe:1 ~ 5%, O:0.1 ~ 0.4%, B:0.1 ~ 0.3%, surplus is titanium and inevitable impurity; In low-cost titanium alloy, foreign matter content precentagewise is counted: C≤0.05%, N≤0.01%, Si≤0.05%, H≤0.001%, and other impurity content by massfraction all≤0.01%.
The foreign matter content precentagewise of described low-cost and high-performance titanium alloy is counted: C≤0.05%, N≤0.01%, Si≤0.05%, H≤0.001%, and other impurity contents all≤0.01%; Other elements described are the elements such as Al, V, Ni, Cr, Mn and Cu.
Fe as the beta stable element of titanium alloy, its its cheap market price, Fe adds in beta-titanium alloy, can accelerate alloy aging response speed, reaches aging strength peak value required time also shorter; When Fe content is too much, easily there is segregation and form " β spot "; O element is interval type α stable element, very large solubleness is had in α titanium, interval type sosoloid and metallic compound phase can be formed in titanium, titanium alloy intensity is raised, but alloy plasticity can cause do harm to, design suitable oxygen level can reach intensity improve and plasticity decline optimum regime; And add B element in titanium can effective refined cast structure to hinder in following process process growing up of crystal grain thinning, thus reduce distortion fire, reach the object reduced costs.
In the present invention, the cost of raw-material cost and titanium sponge is suitable, but described material cost is lower than the material cost of Ti-6Al-4V alloy by more than 15%, and mechanical property and Ti-6Al-4V alloy phase are worked as, and the performance of Ti-6Al-4V alloy is as shown in table 1.Master alloy cost is as shown in table 2, and Fe-B master alloy cost is lower than the cost of other master alloys, and the cost of Fe-B master alloy is as shown in table 3.
The basic mechanical performance of table 1.Ti-6Al-4V alloy
Several master alloy cost of table 2.
Table 3.Fe-B master alloy composition
According to another aspect of the present invention, the invention provides a kind of preparation method of low-cost and high-performance titanium alloy, comprise the following steps:
The first step: calculate titanium sponge, Fe-B master alloy, iron simple substance, amount of titanium proportioning by each elementary composition of titanium alloy;
Second step: water jacketed copper crucible titanium sponge, Fe-B master alloy, iron simple substance, titanium dioxide being put into cold crucible levitation melting stove by proportioning, passes into a certain amount of high-purity argon gas after vacuumizing to body of heater, carries out the alloy pill heat of 15min 1600 DEG C time; After waiting for that ingot casting fully cools, ingot casting turned upside down is put into water jacketed copper crucible and carries out melting again, so repeatedly 3-4 time afterwards till;
3rd step: ingot casting is forged into excellent base in the above 20-100 of a transformation temperature DEG C cogging, then makes the bar of Φ 12mm after rolling.
4th step: the sign of carrying out stuctures and properties after heat-treating after bar is sampled.
The tensile strength of gained alloy bar material reaches more than 950MPa, and unit elongation is not less than 15%, and relative reduction in area is not less than 25%.
Compared with prior art tool of the present invention has the following advantages: preparation technology's flow process of alloy is simple, the alloying constituent obtained is more even, the material cost of alloy is lower than Ti-6Al-4V alloy raw material cost, and the basic mechanical performance of alloy and Ti-6Al-4V alloy phase are worked as.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.
Embodiment 1
(1) element ratio of design of alloy of the present invention is as shown in table 4, and the composition of alloy is Ti-3Fe-0.3O-0.1B (mass percent).
(2) titanium sponge of purchase, Fe-B master alloy, iron simple substance, titanium dioxide are carried out proportioning in the ratio of every ingot casting 1kg, put into the water jacketed copper crucible of cold crucible levitation melting stove again, pass into a certain amount of high-purity argon gas after body of heater is vacuumized, 1600 DEG C time, carry out the alloy pill heat of 15min.
(3), after waiting for that ingot casting fully cools, ingot casting turned upside down is put into water jacketed copper crucible and carries out melting again and make alloying constituent homogenizing, so repeatedly 3-4 time afterwards till.
(4) transformation temperature of obtained alloy is measured.
(5) ingot casting is forged into excellent base in the above 20-100 of a transformation temperature DEG C cogging, after rolling, then make the bar of Φ 12mm.
(6) to carrying out the heat treating regime of air cooling after 960 DEG C of insulation 1h after the sampling of Φ 12mm bar.
(7) carry out Microstructure characterization to alloy after thermal treatment, and carry out Mechanics Performance Testing according to the requirement of GB GB/T228.1-2010, performance is in table 5.
The formulated component of table 4. embodiment 1 interalloy
The mechanical property of bar in table 5. embodiment 1
(8) in this example, titanium alloy is after solution annealing, and room temperature tensile intensity can reach 980Mpa, and moulding unit elongation reaches 16%, and relative reduction in area reaches 26%; In example, the mechanical property of titanium alloy is suitable with the Ti-6Al-4V room-temperature mechanical property through 700-800 DEG C of solution treatment 1-3h after annealing.
Embodiment 2
(1) element ratio of design of alloy of the present invention is as shown in table 6, and the composition of alloy is Ti-1.5Fe-0.4O-0.2B (mass percent).
(2) titanium sponge of purchase, Fe-B master alloy, iron simple substance, titanium dioxide are carried out proportioning in the ratio of every ingot casting 1kg, put into the water jacketed copper crucible of cold crucible levitation melting stove again, pass into a certain amount of high-purity argon gas after body of heater is vacuumized, 1600 DEG C time, carry out the alloy pill heat of 15min.
(3), after waiting for that ingot casting fully cools, ingot casting turned upside down is put into water jacketed copper crucible and carries out melting again and make alloying constituent homogenizing, so repeatedly 3-4 time afterwards till.
(4) transformation temperature of obtained alloy is measured.
(5) ingot casting is forged into excellent base in the above 20-100 of a transformation temperature DEG C cogging, after rolling, then make the bar of Φ 12mm.
(6) to carrying out the heat treating regime of air cooling after 930 DEG C of insulation 1h after the sampling of Φ 12mm bar.
(7) carry out Microstructure characterization to alloy after thermal treatment, and carry out Mechanics Performance Testing according to the requirement of GB GB/T228.1-2010, performance is in table 7.
The formulated component of table 6. embodiment 2 interalloy
The mechanical property of bar in table 7. embodiment 2
(8) in this example, titanium alloy is after solution annealing, and room temperature tensile intensity can reach 950Mpa, and moulding unit elongation reaches 15%, and relative reduction in area reaches 25%; In example, the mechanical property of titanium alloy is suitable with the Ti-6Al-4V room-temperature mechanical property through 700-800 DEG C of solution treatment 1-3h after annealing.
Embodiment 3
(1) element ratio of design of alloy of the present invention is as shown in table 8, and the composition of alloy is Ti-3.5Fe-0.1O-0.25B (mass percent).
(2) titanium sponge of purchase, Fe-B master alloy, iron simple substance, titanium dioxide are carried out proportioning in the ratio of every ingot casting 1kg, put into the water jacketed copper crucible of cold crucible levitation melting stove again, pass into a certain amount of high-purity argon gas after body of heater is vacuumized, 1600 DEG C time, carry out the alloy pill heat of 15min.
(3), after waiting for that ingot casting fully cools, ingot casting turned upside down is put into water jacketed copper crucible and carries out melting again and make alloying constituent homogenizing, so repeatedly 3-4 time afterwards till.
(4) transformation temperature of obtained alloy is measured.
(5) ingot casting is forged into excellent base in the above 20-100 of a transformation temperature DEG C cogging, after rolling, then make the bar of Φ 12mm.
(6) to carrying out the heat treating regime of air cooling after 930 DEG C of insulation 1h after the sampling of Φ 12mm bar.
(7) carry out Microstructure characterization to alloy after thermal treatment, and carry out Mechanics Performance Testing according to the requirement of GB GB/T228.1-2010, performance is in table 9.
The formulated component of table 8. embodiment 3 interalloy
The mechanical property of bar in table 9. embodiment 3
(8) in this example, titanium alloy is after solution annealing, and room temperature tensile intensity can reach 950Mpa, and moulding unit elongation reaches 17%, and relative reduction in area reaches 26%; In example, the mechanical property of titanium alloy is suitable with the Ti-6Al-4V room-temperature mechanical property through 700-800 DEG C of solution treatment 1-3h after annealing.
Embodiment 4
(1) element ratio of design of alloy of the present invention is as shown in table 10, and the composition of alloy is Ti-5Fe-0.2O-0.3B (mass percent).
(2) titanium sponge of purchase, Fe-B master alloy, iron simple substance, titanium dioxide are carried out proportioning in the ratio of every ingot casting 1kg, put into the water jacketed copper crucible of cold crucible levitation melting stove again, pass into a certain amount of high-purity argon gas after body of heater is vacuumized, 1600 DEG C time, carry out the alloy pill heat of 15min.
(3), after waiting for that ingot casting fully cools, ingot casting turned upside down is put into water jacketed copper crucible and carries out melting again and make alloying constituent homogenizing, so repeatedly 3-4 time afterwards till.
(4) transformation temperature of obtained alloy is measured.
(5) ingot casting is forged into excellent base in the above 20-100 of a transformation temperature DEG C cogging, after rolling, then make the bar of Φ 12mm.
(6) to carrying out the heat treating regime of air cooling after 950 DEG C of insulation 1h after the sampling of Φ 12mm bar.
(7) carry out Microstructure characterization to alloy after thermal treatment, and carry out Mechanics Performance Testing according to the requirement of GB GB/T228.1-2010, performance is in table 11.
The formulated component of table 10. embodiment 4 interalloy
The mechanical property of bar in table 11. embodiment 4
(8) in this example, titanium alloy is after solution annealing, and room temperature tensile intensity can reach 960Mpa, and moulding unit elongation reaches 15%, and relative reduction in area reaches 24%; In example, the mechanical property of titanium alloy is suitable with the Ti-6Al-4V room-temperature mechanical property through 700-800 DEG C of solution treatment 1-3h after annealing.
Although describe embodiments of the present invention in detail, it should be understood that when without departing from the spirit and scope of the present invention, various change, replacement and change can be made to embodiments of the present invention.
Claims (4)
1. a low-cost and high-performance titanium alloy, is characterized in that, this alloy take titanium as main element, and with α stable element and beta stable element for alloying element, wherein α stable element is O and B, and beta stable element is Fe; The component content of described titanium alloy is by mass percentage: containing the B of the O of the Fe of 1-5%, 0.1-0.4%, 0.1-0.3%, surplus is titanium and inevitable impurity; Oxygen element is with TiO
2form adds, and titanium elements is by titanium sponge and TiO
2there is provided, boron is provided by Fe-B master alloy, and ferro element is provided by Fe-B master alloy and fe.
2. titanium alloy according to claim 1, is characterized in that, the inevitable foreign matter content precentagewise of described low-cost and high-performance titanium alloy is counted: C≤0.05%, N≤0.01%, Si≤0.05%, H≤0.001%, other impurity contents are all≤0.01%; Other elements described are the elements such as Al, V, Ni, Cr, Mn and Cu.
3. a preparation method for low-cost and high-performance titanium alloy, is characterized in that: comprise following preparation process:
The first step: calculate titanium sponge, Fe-B master alloy, iron simple substance, amount of titanium proportioning by each elementary composition of titanium alloy;
Second step: water jacketed copper crucible titanium sponge, Fe-B master alloy, iron simple substance, titanium dioxide being put into cold crucible levitation melting stove by proportioning, passes into a certain amount of high-purity argon gas after vacuumizing to body of heater, carries out the alloy pill heat of 15min 1600 DEG C time; After waiting for that ingot casting fully cools, ingot casting turned upside down is put into water jacketed copper crucible and carries out melting again, so repeatedly 3-4 time afterwards till;
3rd step: ingot casting is forged into excellent base in the above 20-100 of a transformation temperature DEG C cogging, then makes the bar of Φ 12mm after rolling;
4th step: the sign of carrying out stuctures and properties after heat-treating after bar is sampled.
4. the method preparing low-cost and high-performance titanium alloy according to claim 3, is characterized in that: prepared titanium alloy tensile strength reaches more than 950MPa, and unit elongation is not less than 15%, and relative reduction in area is not less than 25%.
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| CN106319286A (en) * | 2016-10-25 | 2017-01-11 | 南京工业大学 | Low-cost titanium alloy and preparation method thereof |
| CN107746989A (en) * | 2017-09-27 | 2018-03-02 | 西安交通大学 | A kind of superhigh intensity Ti Al Zr Mo Cr system's beta-titanium alloys and its Technology for Heating Processing |
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| CN107746989A (en) * | 2017-09-27 | 2018-03-02 | 西安交通大学 | A kind of superhigh intensity Ti Al Zr Mo Cr system's beta-titanium alloys and its Technology for Heating Processing |
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| CN108842095A (en) * | 2018-05-22 | 2018-11-20 | 南京工业大学 | low-cost high-strength α + β titanium alloy and preparation method thereof |
| CN110093531A (en) * | 2019-06-14 | 2019-08-06 | 重庆文理学院 | A kind of low cost new titanium alloy and preparation method thereof |
| CN110106396A (en) * | 2019-06-14 | 2019-08-09 | 重庆文理学院 | A kind of excellent in mechanical performance titanium alloy and preparation method thereof |
| CN112048638A (en) * | 2020-07-29 | 2020-12-08 | 北京科技大学 | Titanium-based alloy powder, preparation method thereof and preparation method of titanium-based alloy product |
| CN112048638B (en) * | 2020-07-29 | 2022-04-22 | 北京科技大学 | Titanium-based alloy powder, preparation method thereof and preparation method of titanium-based alloy product |
| CN114411004A (en) * | 2022-01-28 | 2022-04-29 | 西安稀有金属材料研究院有限公司 | Preparation method of low-cost titanium alloy for ocean engineering pipe |
| CN114480896A (en) * | 2022-02-16 | 2022-05-13 | 攀钢集团江油长城特殊钢有限公司 | Preparation method of TA15-1 thin plate |
| CN115874083A (en) * | 2022-12-21 | 2023-03-31 | 扬州钛博医疗器械科技有限公司 | Superhard titanium alloy and preparation method thereof |
| CN115747569A (en) * | 2022-12-30 | 2023-03-07 | 昆明理工大学 | Novel Ti-Fe-B alloy and preparation method thereof |
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Application publication date: 20150812 |