CN106636739B - A kind of ocean engineering moderate strength high impact toughness titanium alloy - Google Patents
A kind of ocean engineering moderate strength high impact toughness titanium alloy Download PDFInfo
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Abstract
The invention provides a kind of ocean engineering moderate strength high impact toughness titanium alloy, it is made up of the composition of following mass percent：Al 1.5%~3.5%, Zr 0.5%~3%, Mo 0.5%~2%, Nb 0.5%~3%, surplus are Ti and inevitable impurity.Yield strength of the titanium alloy of the present invention after simple annealing or double annealing processing is 450MPa~550MPa, and impact flexibility is not less than 780kJ/m2.The titanium alloy is not under conditions of element Ni is added with, its yield strength can reach 450MPa~550MPa ranks, and there is the plasticity and toughness suitable with pure titanium, while be also equipped with excellent resistance to corrosion seawater and cold and hot working, manufactured suitable for ocean engineering and shipping industry associated equipment.
Description
Technical field
The invention belongs to titanium alloy technical field, and in particular to a kind of ocean engineering is closed with moderate strength high impact toughness titanium
Gold.
Background technology
Titanium or titanium alloy has that specific strength is high, nonmagnetic, thermal coefficient of expansion is low, a series of feature performance benefits such as corrosion-resistant, its
It is applied not only to as a kind of important structural metallic materials in aerospace industry and petrochemical industry, and in ocean
It is widely used in engineering and apparel manufacture, there is the title of " marine metal ".Wherein, the industrially pure titanium such as TA1, TA2 by
In the heat exchanger, the condensation that are largely used to manufacture sea water desalinating unit with excellent resistance to corrosion seawater and formability
Device and pipe-line system.But the intensity of industrially pure titanium is not high, its yield strength can not meet typically between 150~450MPa
Manufacture the performance requirement of high-tension apparatus.The titanium alloys such as TA10, TA22 have the intensity higher than pure titanium and more excellent resistance to seam
Gap corrosive power, pipe-line system and valve mainly for the preparation of Ship Power Equipment etc., but it is a discovery of the invention that these alloys
In all contain a certain amount of Ni, element Ni belongs to fast eutectoid type beta stable element, is prone to be segregated during alloy melting,
Alloy property is had adverse effect under the conditions of Long-term Service under High Temperature.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of ocean engineering is used
The titanium alloy of moderate strength high impact toughness, under conditions of element Ni is not added with, its yield strength can reach the alloy
450MPa~550MPa ranks, and there is the plasticity suitable with pure titanium, impact flexibility and resistance to corrosion seawater, it can be added by heat
Work manufactures titanium alloy pipe, meets the requirement of marine environment operating mode, at the same the alloy be also equipped with excellent weldability and
Cold and hot working, meet the requirement of mass production and engineering application.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of ocean engineering moderate strength Gao Chong
Hit toughness titanium alloy, it is characterised in that be made up of the composition of following mass percent：Al 1.5%~3.5%, Zr 0.5%~
3%, Mo 0.5%~2%, Nb 0.5%~3%, surplus are Ti and inevitable impurity；The moderate strength refers to the conjunction
Yield strength of the gold after simple annealing or double annealing processing is 450MPa~550MPa, and the high impact toughness refers to the alloy
Impact flexibility after simple annealing or double annealing processing is not less than 780kJ/m2。
Above-mentioned a kind of ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that by following quality hundred
Divide the composition composition of ratio：Al 3.5%, Zr 0.5%, Mo 1.2%, Nb 1.5%, surplus are Ti and inevitable impurity.
Above-mentioned a kind of ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that by following quality hundred
Divide the composition composition of ratio：Al 1.8%, Zr 3.0%, Mo 0.5%, Nb 2.5%, surplus are Ti and inevitable impurity.
Above-mentioned a kind of ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that by following quality hundred
Divide the composition composition of ratio：Al 2.0%, Zr 1.0%, Mo 0.8%, Nb 1.0%, surplus are Ti and inevitable impurity.
Above-mentioned a kind of ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that by following quality hundred
Divide the composition composition of ratio：Al 2.4%, Zr 1.4%, Mo 2.0%, Nb 0.5%, surplus are Ti and inevitable impurity.
Above-mentioned a kind of ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that by following quality hundred
Divide the composition composition of ratio：Al 1.5%, Zr 2.6%, Mo 1.0%, Nb3.0%, surplus are Ti and inevitable impurity.
A kind of above-mentioned ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that the simple annealing
Detailed process be：Air cooling, the detailed process of the double annealing are after insulation 1h under conditions of being 800 DEG C in temperature：First exist
Temperature is incubated air cooling after 1h under conditions of being 900 DEG C, and air cooling after 4h is incubated under conditions of being then 700 DEG C in temperature.
Ocean engineering of the present invention is conventional preparation techniques with the preparation process of moderate strength high impact toughness titanium alloy：Using
Al-Mo intermediate alloys, Al-Nb intermediate alloys, aluminium shot, sponge zirconium and titanium sponge are by ingredient composition and electrode pressing is designed, then
The melting of 2~3 times is carried out in vacuum consumable electrode arc furnace, melted ingot casting is carried out in the range of 950 DEG C~1150 DEG C by
Level cooling forging, then carries out finished product processing in the range of 800 DEG C~900 DEG C.
The research and development mechanism of moderate strength high impact toughness titanium alloy of the present invention is：
1st, with the α phases in reinforced alloys, alloy strength is improved added with a certain proportion of Al elements in titanium alloy of the present invention.
Al constituent contents very little, the invigoration effect unobvious to alloy.Al constituent contents are too high, can cause alloy plasticity and impact flexibility
Be remarkably decreased, and reduce its machinability, make alloy be not used as preparing tubing；
2nd, it is too fast during suppressing crystal grain more than phase transition temperature in titanium alloy of the present invention added with a certain proportion of Zr elements
Grow up, improve the plasticity and weldability of alloy to a certain degree.Zr constituent contents very little, change to alloy plasticity and weldability
Kind effect unobvious.Zr constituent contents are too high, increase cost of alloy；
3rd, with a small amount of β phases in reinforced alloys, it is strong to improve alloy added with a certain proportion of Mo elements in titanium alloy of the present invention
Make the phase transition temperature of alloy reduce while spending, improve its hot-working character；Exist in addition, the addition of Mo elements can also improve alloy
Corrosion resistance in most of reductant.Mo constituent contents very little, invigoration effect and performance improvement unobvious.Mo elements contain
Measure too high, alloy can be caused to be changed into (alpha+beta) diphasic titanium alloy by nearly alpha titanium alloy, significantly reduce alloy impact flexibility and
Weldability；
4th, in titanium alloy of the present invention added with a certain proportion of Nb elements to improve the cold and hot working performance of alloy, promote alloy
Tissue is more easy to be refined, and lifts alloy plasticity and impact flexibility；The β phases that Nb elements can be in micro reinforced alloys simultaneously.Nb elements
Content very little, to the improvement result unobvious of alloy property.Nb constituent contents are too high, dramatically increase cost of alloy.
The present invention has advantages below compared with prior art：
1st, moderate strength high impact toughness titanium alloy of the present invention has good combination property.Its tensile strength Rm is
550MPa~650MPa, yield strength Rp0.2For 450MPa~550MPa, elongation percentage A is 18%~28%, and contraction percentage of area Z is
45%~60%, impact flexibility aKVFor 780kJ/m2~1600kJ/m2, matrix and weld seam are in 60 DEG C, 3.5wt%NaCl solution
Corrosion-free generation, corrosion rate 0mm/a, under 10m/s flow velocitys, erosion corrosion speed≤4 × 10-4mm/a；
2nd, moderate strength high impact toughness titanium alloy of the present invention is easily prepared, and composition is simple and is not susceptible to be segregated, and organizes
Uniformly and stably, the converted products such as casting, bar, sheet material, tubing and forging can be made, suitable for ocean engineering field；
3rd, moderate strength high impact toughness titanium alloy of the present invention is not under conditions of element Ni is added with, its yield strength energy
Enough reach 450MPa~550MPa ranks, and there is the plasticity suitable with pure titanium, toughness and resistance to corrosion seawater, while also have
Standby excellent weldability and cold and hot working, meet the requirement of mass production and engineering application.
The present invention is described in further detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the metallographic structure figure of the moderate strength high impact toughness titanium alloy of the embodiment of the present invention 1.
Embodiment
Embodiment 1
The composition of the present embodiment moderate strength high impact toughness titanium alloy is Ti-3.5Al-0.5Zr-1.2Mo-1.5Nb,
I.e.：Alloying component is Al 3.5% by weight percentage, Zr 0.5%, Mo 1.2%, Nb 1.5%, and surplus is Ti and can not
The impurity avoided.
The preparation process of the present embodiment moderate strength high impact toughness titanium alloy is：Using Al-Mo intermediate alloys, Al-Nb
Then intermediate alloy, aluminium shot, sponge zirconium and titanium sponge are entered by design ingredient composition and electrode pressing in vacuum consumable electrode arc furnace
The melting that row is 2~3 times, melted ingot casting is being subjected to the forging of cogging three times at 1150 DEG C, 1050 DEG C and 950 DEG C respectively, with
Afterwards finished product is carried out in the range of 800 DEG C~900 DEG C to process to obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, AC letters
After single annealing, its room-temperature mechanical property is：Tensile strength is 645MPa, yield strength 546MPa, and elongation after fracture is
19.5%, the contraction percentage of area 48%, impact absorbing energy 820kJ/m2.The bar is through 900 DEG C/1h, AC+700 DEG C/4h, AC
After double annealing processing, its room-temperature mechanical property is：Tensile strength is 635MPa, yield strength 532MPa, elongation after fracture
For 22.5%, the contraction percentage of area 50%, impact absorbing energy 880kJ/m2.Alloy substrate and weld seam are in 60 DEG C, 3.5wt%
Corrosion-free generation in NaCl solution, corrosion rate 0mm/a, under 10m/s flow velocitys, erosion corrosion speed 2.2 × 10-4mm/a。
Fig. 1 be the present embodiment moderate strength high impact toughness titanium alloy through 900 DEG C/1h, AC+700 DEG C/4h, AC is dual to move back
Metallographic structure figure after fire processing.The alloy is typical nearly alpha titanium alloy as shown in Figure 1, is organized by about 75% isometric α phases
About 25% β transformation tissue compositions, the uniform tiny segregation-free of global tissue, isometric 10 μm of α phase averages undersize.
Embodiment 2
The composition of the present embodiment moderate strength high impact toughness titanium alloy is Ti-1.8Al-3Zr-0.5Mo-2.5Nb, i.e.,：
Alloying component is Al 1.8% by weight percentage, and Zr 3.0%, Mo 0.5%, Nb 2.5%, surplus is Ti and can not keep away
The impurity exempted from.
The preparation process of the present embodiment moderate strength high impact toughness titanium alloy is：Using Al-Mo intermediate alloys, Al-Nb
Then intermediate alloy, aluminium shot, sponge zirconium and titanium sponge are entered by design ingredient composition and electrode pressing in vacuum consumable electrode arc furnace
The melting that row is 2~3 times, melted ingot casting is being subjected to the forging of cogging three times at 1150 DEG C, 1050 DEG C and 950 DEG C respectively, with
Afterwards finished product is carried out in the range of 800 DEG C~900 DEG C to process to obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, AC letters
After single annealing, its room-temperature mechanical property is：Tensile strength is 572MPa, yield strength 469MPa, and elongation after fracture is
25%, the contraction percentage of area 56%, impact absorbing energy 1070kJ/m2.The bar is through 900 DEG C/1h, and AC+700 DEG C/4h, AC is double
After reannealing processing, its room-temperature mechanical property is：Tensile strength is 566MPa, yield strength 460MPa, and elongation after fracture is
25.5%, the contraction percentage of area 58%, impact absorbing energy 1120kJ/m2.Alloy substrate and weld seam are in 60 DEG C, 3.5%NaCl
Corrosion-free generation in solution, corrosion rate 0mm/a, under 10m/s flow velocitys, erosion corrosion speed 1.3 × 10-4mm/a。
Embodiment 3
The composition of the present embodiment moderate strength high impact toughness titanium alloy is Ti-2Al-1Zr-0.8Mo-1Nb, i.e.,：Alloy
Composition is Al 2.0% by weight percentage, and Zr 1.0%, Mo 0.8%, Nb 1.0%, surplus is for Ti and inevitably
Impurity.
The preparation process of the present embodiment moderate strength high impact toughness titanium alloy is：Using Al-Mo intermediate alloys, Al-Nb
Then intermediate alloy, aluminium shot, sponge zirconium and titanium sponge are entered by design ingredient composition and electrode pressing in vacuum consumable electrode arc furnace
The melting that row is 2~3 times, melted ingot casting is being subjected to the forging of cogging three times at 1150 DEG C, 1050 DEG C and 950 DEG C respectively, with
Afterwards finished product is carried out in the range of 800 DEG C~900 DEG C to process to obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, AC letters
After single annealing, its room-temperature mechanical property is：Tensile strength is 588MPa, yield strength 470MPa, and elongation after fracture is
24%, the contraction percentage of area 55%, impact absorbing energy 1030kJ/m2.The bar is through 900 DEG C/1h, and AC+700 DEG C/4h, AC is double
After reannealing processing, its room-temperature mechanical property is：Tensile strength is 581MPa, yield strength 466MPa, and elongation after fracture is
25%, the contraction percentage of area 57%, impact absorbing energy 1160kJ/m2.Alloy substrate and weld seam 60 DEG C, 3.5%NaCl it is molten
Corrosion-free generation in liquid, corrosion rate 0mm/a, under 10m/s flow velocitys, erosion corrosion speed 1.7 × 10-4mm/a。
Embodiment 4
The composition of the present embodiment moderate strength high impact toughness titanium alloy is Ti-2.4Al-1.4Zr-2Mo-0.5Nb, i.e.,：
Alloying component is Al 2.4% by weight percentage, and Zr 1.4%, Mo 2.0%, Nb 0.5%, surplus is Ti and can not keep away
The impurity exempted from.
The preparation process of the present embodiment moderate strength high impact toughness titanium alloy is：Using Al-Mo intermediate alloys, Al-Nb
Then intermediate alloy, aluminium shot, sponge zirconium and titanium sponge are entered by design ingredient composition and electrode pressing in vacuum consumable electrode arc furnace
The melting that row is 2~3 times, melted ingot casting is being subjected to the forging of cogging three times at 1150 DEG C, 1050 DEG C and 950 DEG C respectively, with
Afterwards finished product is carried out in the range of 800 DEG C~900 DEG C to process to obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, AC letters
After single annealing, its room-temperature mechanical property is：Tensile strength is 622MPa, yield strength 537MPa, and elongation after fracture is
23.5%, the contraction percentage of area 53%, impact absorbing energy 1140kJ/m2.The bar is through 900 DEG C/1h, AC+700 DEG C/4h, AC
After double annealing processing, its room-temperature mechanical property is：Tensile strength is 611MPa, yield strength 523MPa, elongation after fracture
For 24.5%, the contraction percentage of area 54%, impact absorbing energy 1320kJ/m2.Alloy substrate and weld seam 60 DEG C, 3.5%
Corrosion-free generation in NaCl solution, corrosion rate 0mm/a, under 10m/s flow velocitys, erosion corrosion speed 2.5 × 10-4mm/a。
Embodiment 5
The composition of the present embodiment moderate strength high impact toughness titanium alloy is Ti-1.5Al-2.6Zr-1Mo-3Nb, i.e.,：Close
Golden composition is Al 1.5% by weight percentage, and Zr 2.6%, Mo 1.0%, Nb 3.0%, surplus is for Ti and unavoidably
Impurity.
The preparation process of the present embodiment moderate strength high impact toughness titanium alloy is：Using Al-Mo intermediate alloys, Al-Nb
Then intermediate alloy, aluminium shot, sponge zirconium and titanium sponge are entered by design ingredient composition and electrode pressing in vacuum consumable electrode arc furnace
The melting that row is 2~3 times, melted ingot casting is being subjected to the forging of cogging three times at 1150 DEG C, 1050 DEG C and 950 DEG C respectively, with
Afterwards finished product is carried out in the range of 800 DEG C~900 DEG C to process to obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, AC letters
After single annealing, its room-temperature mechanical property is：Tensile strength is 591MPa, yield strength 497MPa, and elongation after fracture is
24%, the contraction percentage of area 54%, impact absorbing energy 1280kJ/m2.The bar is through 900 DEG C/1h, and AC+700 DEG C/4h, AC is double
After reannealing processing, its room-temperature mechanical property is：Tensile strength is 582MPa, yield strength 473MPa, and elongation after fracture is
25.5%, the contraction percentage of area 57%, impact absorbing energy 1520kJ/m2.Alloy substrate and weld seam are in 60 DEG C, 3.5%NaCl
Corrosion-free generation in solution, corrosion rate 0mm/a, under 10m/s flow velocitys, erosion corrosion speed 1.8 × 10-4mm/a。
Comparative example 1
The composition of this comparative example alloy is Ti-2.6Zr-1Mo-3Nb, i.e.,：Alloying component is Zr by weight percentage
2.6%, Mo 1.0%, Nb 3.0%, surplus are Ti and inevitable impurity.
The preparation process of this comparative example alloy is：Using Ti-Mo alloys, Ti-Nb alloys, sponge zirconium and titanium sponge by design
Ingredient composition and electrode pressing, the melting of 2~3 times is then carried out in vacuum consumable electrode arc furnace, melted ingot casting is being divided
Cogging three times is not carried out at 1150 DEG C, 1050 DEG C and 950 DEG C to forge, finished product processing is then carried out in the range of 800 DEG C~900 DEG C
Obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, and after AC simply makes annealing treatment, its room-temperature mechanical property is：Tension
Intensity is 507MPa, yield strength 429MPa, elongation after fracture 25%, the contraction percentage of area 55%, and impact absorbing energy is
930kJ/m2.The bar is through 900 DEG C/1h, and AC+700 DEG C/4h, after the processing of AC double annealings, its room-temperature mechanical property is：Tension
Intensity is 522MPa, yield strength 436MPa, elongation after fracture 18.5%, the contraction percentage of area 43%, impact absorbing energy
For 820kJ/m2.The corrosion-free generation in 60 DEG C, 3.5%NaCl solution of alloy substrate and weld seam, corrosion rate 0mm/a,
Under 10m/s flow velocitys, erosion corrosion speed 2.4 × 10-4mm/a。
Example 1 is understood with the contrast of embodiment 5 by contrast, due to lacking Al elements to the solution strengthening effect of α phases, causes to contrast
The intensity of the alloy of example 1 significantly declines, and reduces about 15%, not up to medium intensity level.
Comparative example 2
The composition of this comparative example alloy is Ti-1.5Al-2.6Zr-1Mo, i.e.,：Alloying component is Al by weight percentage
1.5%, Zr 2.6%, Mo 1.0%, surplus are Ti and inevitable impurity.
The preparation process of this comparative example alloy is：Using Al-Mo intermediate alloys, aluminium shot, sponge zirconium and titanium sponge by design
Ingredient composition and electrode pressing, the melting of 2~3 times is then carried out in vacuum consumable electrode arc furnace, melted ingot casting is being divided
Cogging three times is not carried out at 1150 DEG C, 1050 DEG C and 950 DEG C to forge, finished product processing is then carried out in the range of 800 DEG C~900 DEG C
Obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, and after AC simply makes annealing treatment, its room-temperature mechanical property is：Tension
Intensity is 567MPa, yield strength 469MPa, elongation after fracture 17.5%, the contraction percentage of area 38%, impact absorbing energy
For 740kJ/m2.The bar is through 900 DEG C/1h, and AC+700 DEG C/4h, after the processing of AC double annealings, its room-temperature mechanical property is：It is anti-
Tensile strength is 548MPa, yield strength 446MPa, elongation after fracture 19%, the contraction percentage of area 41%, impact absorbing energy
For 770kJ/m2.The corrosion-free generation in 60 DEG C, 3.5%NaCl solution of alloy substrate and weld seam, corrosion rate 0mm/a,
Under 10m/s flow velocitys, erosion corrosion speed 2.1 × 10-4mm/a。
Example 2 and embodiment 5 contrast by contrast understands, due to lacking Nb elements to alloy plasticity and the improvement result of toughness,
Comparative example 2-in-1 golden elongation percentage, the contraction percentage of area and impact absorbing energy is caused to decline in various degree.Simultaneously because Al elements contain
Measure as lower limit, the surplus deficiency of alloy yield strength.
Comparative example 3
The composition of this comparative example alloy is Ti-4.5Al-2.6Zr-1Mo-4Nb, i.e.,：Alloying component is by weight percentage
For Al 4.5%, Zr 2.6%, Mo 1.0%, Nb 4.0%, surplus is Ti and inevitable impurity.
The preparation process of this comparative example alloy is：Using Al-Mo intermediate alloys, Al-Nb intermediate alloys, aluminium shot, sponge zirconium
With titanium sponge by ingredient composition and electrode pressing is designed, the melting of 2~3 times is then carried out in vacuum consumable electrode arc furnace, will be molten
The ingot casting refined is carrying out the forging of cogging three times at 1150 DEG C, 1050 DEG C and 950 DEG C respectively, then in 800 DEG C~900 DEG C scopes
Interior progress finished product is processed to obtain a diameter of 20mm bar.The bar is through 800 DEG C/1h, after AC simply makes annealing treatment, its room temperature power
Learning performance is：Tensile strength is 661MPa, yield strength 570MPa, elongation after fracture 15.5%, and the contraction percentage of area is
34%, impact absorbing energy 670kJ/m2.The bar is through 900 DEG C/1h, AC+700 DEG C/4h, after the processing of AC double annealings, its room
Warm mechanical property is：Tensile strength is 647MPa, yield strength 558MPa, elongation after fracture 16%, and the contraction percentage of area is
36%, impact absorbing energy 740kJ/m2.The corrosion-free generation in 60 DEG C, 3.5%NaCl solution of alloy substrate and weld seam, corrosion
Speed is 0mm/a, under 10m/s flow velocitys, erosion corrosion speed 5.8 × 10-4mm/a。
Example 3 understands that, because Al constituent contents exceed the upper limit, alloy strength is substantially improved with the contrast of embodiment 5 by contrast, but
Plasticity and toughness decline obvious.And preparing titanium alloy pipe by hot-working needs alloy to possess excellent plasticity, therefore height contains
Low-alloyed machinability can drop in the Al elements of amount.The increase of Al, Nb element causes alloy to be needed in melting preparation process simultaneously
The intermediate alloy of addition is more, is unfavorable for the control of impurity element, so as to cause alloy seawater scouring corrosion resistant to decline.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art is substantially made to above example, still fall within technical solution of the present invention
Protection domain in.
Claims (6)
- A kind of 1. ocean engineering moderate strength high impact toughness titanium alloy, it is characterised in that by following mass percent into It is grouped into：Al 1.5%~3.5%, Zr 0.5%~3%, Mo 0.5%~2%, Nb 0.5%~3%, surplus is for Ti and not Evitable impurity；The moderate strength refers to that yield strength of the alloy after simple annealing or double annealing processing is 450MPa~550MPa, the high impact toughness refer to impact flexibility of the alloy after simple annealing or double annealing processing not Less than 780kJ/m2；The detailed process simply annealed is：Air cooling after insulation 1h, described under conditions of being 800 DEG C in temperature The detailed process of double annealing is：Air cooling after insulation 1h under conditions of being first 900 DEG C in temperature, is then 700 DEG C in temperature Under the conditions of be incubated 4h after air cooling.
- A kind of 2. ocean engineering according to claim 1 moderate strength high impact toughness titanium alloy, it is characterised in that by The composition composition of following mass percent：Al 3.5%, Zr 0.5%, Mo 1.2%, Nb 1.5%, surplus are Ti and can not kept away The impurity exempted from.
- A kind of 3. ocean engineering according to claim 1 moderate strength high impact toughness titanium alloy, it is characterised in that by The composition composition of following mass percent：Al 1.8%, Zr 3.0%, Mo 0.5%, Nb 2.5%, surplus are Ti and can not kept away The impurity exempted from.
- A kind of 4. ocean engineering according to claim 1 moderate strength high impact toughness titanium alloy, it is characterised in that by The composition composition of following mass percent：Al 2.0%, Zr 1.0%, Mo 0.8%, Nb 1.0%, surplus are Ti and can not kept away The impurity exempted from.
- A kind of 5. ocean engineering according to claim 1 moderate strength high impact toughness titanium alloy, it is characterised in that by The composition composition of following mass percent：Al 2.4%, Zr 1.4%, Mo 2.0%, Nb 0.5%, surplus are Ti and can not kept away The impurity exempted from.
- A kind of 6. ocean engineering according to claim 1 moderate strength high impact toughness titanium alloy, it is characterised in that by The composition composition of following mass percent：Al 1.5%, Zr 2.6%, Mo 1.0%, Nb 3.0%, surplus are Ti and can not kept away The impurity exempted from.
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| CN107541615B (en) * | 2017-09-07 | 2019-02-15 | 西北有色金属研究院 | A kind of high tough titanium alloy of ocean engineering |
| CN108950263B (en) * | 2018-06-28 | 2020-02-25 | 洛阳双瑞精铸钛业有限公司 | Preparation method of TA24 alloy plate with high impact toughness |
| CN109022908B (en) * | 2018-07-20 | 2020-10-20 | 中国航发北京航空材料研究院 | Marine corrosion-resistant titanium alloy |
| CN111560538A (en) * | 2020-05-29 | 2020-08-21 | 西北有色金属研究院 | Quinary damage tolerant medium-strength titanium alloy |
| CN112122607B (en) * | 2020-10-10 | 2023-05-09 | 哈尔滨工程大学 | Material adding and repairing material suitable for ocean oscillation working condition and stability-shape regulation and control method of molten pool |
| CN114150180B (en) * | 2021-11-01 | 2022-10-11 | 新乡学院 | Ocean engineering titanium alloy material for electron beam fuse 3D printing and preparation method thereof |
| CN114182137B (en) * | 2021-12-08 | 2022-07-12 | 西部钛业有限责任公司 | High-strength plastic titanium alloy for 20K ultralow temperature |
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| JPS58213849A (en) * | 1982-06-08 | 1983-12-12 | Kobe Steel Ltd | Shape memory and vibration damping alloy |
| JPH0353038A (en) * | 1989-07-20 | 1991-03-07 | Sumitomo Metal Ind Ltd | High strength titanium alloy |
| JP2797914B2 (en) * | 1993-08-11 | 1998-09-17 | 住友金属工業株式会社 | High strength titanium alloy with excellent cold workability and weldability |
| CN1772932A (en) * | 2005-04-27 | 2006-05-17 | 中国航空工业第一集团公司北京航空材料研究院 | High temperature Titanium alloy with high creepage resistance and high fatigue strength |
| CN102251145B (en) * | 2011-07-04 | 2013-02-06 | 西安西工大超晶科技发展有限责任公司 | 1100 MPa level thermal strength titanium alloy and preparation method thereof |
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