CN105950911A - Multi-element solid solution strengthening heat-resistant titanium alloy - Google Patents
Multi-element solid solution strengthening heat-resistant titanium alloy Download PDFInfo
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- CN105950911A CN105950911A CN201610478787.1A CN201610478787A CN105950911A CN 105950911 A CN105950911 A CN 105950911A CN 201610478787 A CN201610478787 A CN 201610478787A CN 105950911 A CN105950911 A CN 105950911A
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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
- 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 provides a multi-element solid solution strengthening heat-resistant titanium alloy. The multi-element solid solution strengthening heat-resistant titanium alloy consists of the following components in percentage by mass: 5.5%-6.5% of Al,, 2.5%-3.5% of Sn, 3.0%-5.0% of Zr, 0.3%-0.7% of Nb, 0.3%-0.7% of Mo, 1.0%-2.0% of W, 1.0%-2.0% of Ta, 0.25%-0.45% of Si, 0.03%-0.07% of C and the balance being Ti and other inevitable impurities. The titanium alloy belongs to the multi-element solid solution strengthening heat-resistant titanium alloy, and the room-temperature strength of the alloy subjected to solid solution and ageing treatment meets the following relationship: Rm greater than or equal to 1100MPa, Rp 0.2 greater than or equal to 910 MPa, A5 greater than or equal to 8%; and the strength under a 650-DEGC high-temperature condition meets the following relationship: Rm greater than or equal to 680 MPa, Rp0.2 greater than or equal to 580 MPa and A5 greater than or equal to 20%.
Description
Technical field
The invention belongs to titanium materials technology field, be specifically related to a kind of polynary solid solution, strengthened, heat-resistant titanium
Alloy.
Background technology
The research of heat-resistant titanium alloy, is one of of paramount importance direction, titanium alloy field, and it is main
For parts such as the diskware of compressor and fan, blade and the casings that manufacture aero-engine, replace steel
Or high temperature alloy, can relatively significantly alleviate the quality of electromotor, improve the thrust-weight ratio of electromotor.
Both at home and abroad heat-resistant titanium alloy research mainly being included two each and every one aspects, one is Ti-Al intermetallic
Thing alloy, one is the nearly α alloy of Ti-Al-Sn-Zr-Mo-Si system.Ti-Al intermediate compound alloy
Owing to its Al content is the highest, alloy has relatively low plasticity, poor processability, and manufacturing cost is high.
Conventional Ti-Al-Sn-Zr-Mo-Si system high temperature with Ti-1100, IMI834 and Ti60 alloy as representative
Titanium alloy develops more ripe at present, and its Al constituent content is usually no more than 7wt.%, associated alloys
It is applied in aero-engine, but the current maximum operation (service) temperature of such alloy is 600 DEG C,
Will be unable to meet use more than the heat resistance of 600 DEG C of alloys.So there is no at present have substantially processing and
High-temperature titanium alloy is used during performance advantage long under the conditions of 650 DEG C.For meeting China's next generation's aviation
The electromotor application demand to high-temperature titanium alloy, is badly in need of carrying out the R&D work of such titanium alloy.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, it is provided that a kind of
A kind of polynary solid solution, strengthened, heat-resistant titanium alloy.This titanium alloy has good room temperature and elevated temperature strength and moulds
Property, use temperature higher than traditional Ti-Al-Sn-Zr-Mo-Si system heat-resisting alloy, have good comprehensive
Performance, can meet the requirement of life-time service under the conditions of 650 DEG C.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of polynary solution strengthening
Heat-resistant titanium alloy, it is characterised in that be grouped into by the one-tenth of following mass percent: Al 5.5%～6.5%,
Sn 2.5%～3.5%, Zr 3.0%～5.0%, Nb 0.3%～0.7%, Mo 0.3%～0.7%, W
1.0%～2.0%, Ta 1.0%～2.0%, Si 0.25%～0.45%, C 0.03%～0.07%, surplus is
Ti and other inevitable impurity；This titanium alloy, after solid solution and Ageing Treatment, is 650 DEG C in temperature
Under the conditions of tensile strength be not less than 680MPa, yield strength is not less than 580MPa, and elongation percentage is the lowest
In 20%.
The polynary solid solution, strengthened, heat-resistant titanium alloy of above-mentioned one, it is characterised in that by following percent mass
The one-tenth of ratio is grouped into: Al 6%, Sn 3%, Zr 4%, Nb 0.5%, Mo 0.5%, W 1.5%,
Ta 1.5%, Si 0.35%, C 0.05%, surplus is Ti and inevitable impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of above-mentioned one, it is characterised in that by following percent mass
The one-tenth of ratio is grouped into: Al 5.5%, Sn 2.5%, Zr 3.0%, Nb 0.3%, Mo 0.3%, W 1.0%,
Ta 1.0%, Si 0.25%, C 0.03%, surplus is Ti and inevitable impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of above-mentioned one, it is characterised in that by following percent mass
The one-tenth of ratio is grouped into: Al 6.5%, Sn 3.5%, Zr 5.0%, Nb 0.7%, Mo 0.7%, W 2.0%,
Ta 2.0%, Si 0.45%, C 0.07%, surplus is Ti and inevitable impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of above-mentioned one, it is characterised in that by following percent mass
The one-tenth of ratio is grouped into: Al 6.5%, Sn 3.5%, Zr 5.0%, Nb 0.3%, Mo 0.3%, W 2.0%,
Ta 2.0%, Si 0.45%, C 0.03%, surplus is Ti and inevitable impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of above-mentioned one, it is characterised in that by following percent mass
The one-tenth of ratio is grouped into: Al 5.5%, Sn 2.5%, Zr 4.0%, Nb 0.5%, Mo 0.3%, W 1.5%,
Ta 1.5%, Si 0.30%, C 0.04%, surplus is Ti and inevitable impurity.
The present invention compared with prior art has the advantage that
1, maximum feature of the present invention is to use multielement enhanced mode.Alloying element of the present invention is except Ti unit
Outer up to 9 kinds of element, is the alloy that in currently used titanium alloy, constituent element is most, uses this multiplexed way
Can effectively utilize the strengthening effect of different-alloy element, the room temperature that simultaneously will not significantly reduce alloy is moulded
Property.
2, the present invention with the addition of Al, Sn alloying element according to certain ratio, has ensured alloy
Al equivalent is between the optimal span of high-temperature titanium alloy 8%～10%.This selection ensures alloy
The most tiny α phase and α 2 phase can be generated when timeliness, be effectively improved alloy strength and creep resistant
While performance, will not obvious embrittled alloys.
3, Nb, Mo, Ta, W element in the present invention can effectively stablize β phase, makes alloy
Mo equivalent is between 0.05%～2%, not only increases the working plasticity of alloy, and can make conjunction
The effect of gold ageing strengthening is obvious, and reduces Al element with Ti Element generation Ti3Al ordered phase not
Profit impact, makes alloy obtain preferable intensity, the moulding and coupling of high-temperature behavior.
4, the Si element added by specific proportioning in the present invention can be good at ensureing the high temperature of titanium alloy
Croop property.
5, in the present invention, the addition of C element can increase the two-phase section temperature range in titanium alloy, increases
The pyroprocessing temperature window of big alloy so that control relatively easy containing quantitative change of primary alpha phase.Logical
Overheating Treatment, it is possible to obtain have the line and staff control of 10%～15% primary alpha phase, effective coordination titanium closes
Thermal stability, croop property and the fatigue behaviour of gold, improves the comprehensive mechanical property of titanium alloy.
6, the polynary solid solution, strengthened, heat-resistant titanium alloy of the present invention has good room temperature and elevated temperature strength and moulds
Property, use temperature higher than traditional Ti-Al-Sn-Zr-Mo-Si system heat-resisting alloy, have good comprehensive
Performance, this titanium alloy is after solid solution and Ageing Treatment, and tensile strength at ambient temperature is not less than
1100MPa, yield strength is not less than 910MPa, and elongation percentage is not less than 8%, is 650 DEG C in temperature
Under the conditions of tensile strength be not less than 680MPa, yield strength is not less than 580MPa, and elongation percentage is the lowest
In 20%, meet the requirement of life-time service under the conditions of 650 DEG C.
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the metallographic structure figure of more than 1 yuan of solid solution, strengthened, heat-resistant titanium alloy of the embodiment of the present invention.
Fig. 2 is the metallographic structure figure of more than 2 yuan of solid solution, strengthened, heat-resistant titanium alloy of the embodiment of the present invention.
Fig. 3 is the metallographic structure figure of more than 3 yuan of solid solution, strengthened, heat-resistant titanium alloy of the embodiment of the present invention.
Fig. 4 is the metallographic structure figure of more than 4 yuan of solid solution, strengthened, heat-resistant titanium alloy of the embodiment of the present invention.
Fig. 5 is the metallographic structure figure of more than 5 yuan of solid solution, strengthened, heat-resistant titanium alloy of the embodiment of the present invention.
Detailed description of the invention
The polynary solid solution, strengthened, heat-resistant titanium alloy of the present invention is grouped into by the one-tenth of following weight/mass percentage composition: Al
5.5%～6.5%, Sn 2.5%～3.5%, Zr 3.0%～5.0%, Nb 0.3%～0.7%, Mo 0.3%～0.7%,
W 1.0%～2.0%, Ta 1.0%～2.0%, Si 0.25%～0.45%, C 0.03%～0.07%, surplus is
Ti and inevitable impurity.Raw material involved by the polynary solid solution, strengthened, heat-resistant titanium alloy of the present invention includes
In 0 grade of titanium sponge, aluminium shot, Ti-Sn intermediate alloy, sponge zirconium, Al-Nb intermediate alloy, Al-Mo
Between alloy, Al-Si intermediate alloy and Ti-C intermediate alloy.The present invention polynary solid solution, strengthened, heat-resistant titanium closes
The concrete preparation process of gold is: the raw material in addition to titanium sponge is bundled into alloy bag, with sea by design composition
Continuous titanium is suppressed together and is obtained electrode, and electrode prepares alloy cast ingot through vacuum consumable arc-melting, closes
Gold ingot casting is after surface strips off the skin and cuts rising head and tail end, at the open die forging such as hydrostatic forging machine or forging hammer
Cogging forging, 2 fire time high temperature β phase region forgings and 2 fire time two-phase section forgings are carried out on manufacturing apparatus, then
Heat-resistant titanium alloy is obtained after solution treatment and Ageing Treatment；Described cogging Forge Heating temperature is
1100 DEG C～1200 DEG C, the forging temperature of 2 fire time high temperature forgings is 1060 DEG C～1100 DEG C, 2 fire time two
The forging temperature of phase region forging is 1000 DEG C～1040 DEG C, described cogging forging, β phase region forging and two
Phase region forging every fire time forging is two piers two and pulls out；Described solid solution temperature is
1030 DEG C～1040 DEG C, temperature retention time is 2h, and the temperature of Ageing Treatment is 680 DEG C～700 DEG C, insulation
Time is 2h～3h；Heat-resistant titanium alloy of the present invention tensile strength at ambient temperature is not less than
1100MPa, yield strength is not less than 910MPa, and elongation percentage is not less than 8%；Described heat-resistant titanium alloy
Tensile strength under the conditions of temperature is 650 DEG C is not less than 680MPa, and yield strength is not less than
580MPa, elongation percentage is not less than 20%, and alloy has good room-temperature property and mates with high-temperature behavior.
Embodiment 1
The polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment, is grouped by the one-tenth of following weight/mass percentage composition
Become: Al:6%, Sn:3%, Zr:4%, Nb:0.5%, Mo:0.5%, W:1.5%, Ta:1.5%,
Si:0.35%, C:0.05%, surplus is Ti and inevitable impurity.
The preparation method of the polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment is: 0 grade of titanium sponge, aluminium shot,
In the middle of Ti-Sn intermediate alloy, sponge zirconium, Al-Nb intermediate alloy, Al-Mo intermediate alloy, Al-Si
Alloy and Ti-C intermediate alloy, be bundled into alloy bag by design composition by the raw material in addition to titanium sponge, with
Titanium sponge is suppressed together and is obtained electrode, and electrode prepares alloy cast ingot through vacuum consumable arc-melting,
Alloy cast ingot, after surface strips off the skin and cuts rising head and tail end, carries out cogging forging on hydrostatic forging machine
Make and 2 fire time high temperature β phase regions forgings and 2 fire time two-phase sections forgings, the most again through solution treatment and
Ageing Treatment.The heating-up temperature of described cogging forging is 1170 DEG C, the forging temperature of 2 fire time high temperature forgings
Degree for respectively 1100 DEG C and 1060 DEG C, 2 fire time two-phase section forging temperatures be respectively 1040 DEG C with
1000 DEG C, described cogging forging and the described high temperature forging of every fire time are two piers two and pull out forging；Described solid
The temperature of molten process is 1035 DEG C, and temperature retention time is 2h, and the temperature of described Ageing Treatment is 700 DEG C,
Temperature retention time is 2.5h.
The final tissue that Fig. 1 is the obtained alloy of the present embodiment, from figure 1 it appears that this enforcement
Titanium alloy prepared by example is typical bifurcation tissue, and primary alpha phase is about 12%, and structural homogenity is good.
The present embodiment polynary solid solution, strengthened, heat-resistant titanium alloy bar after solution treatment and Ageing Treatment
Tensile strength under room temperature condition is 1180MPa, and yield strength is 1070MPa, and elongation percentage is 9.5%,
This heat-resistant titanium alloy bar tensile strength under the conditions of temperature is 650 DEG C is 710MPa, and surrender is strong
Degree is 590MPa, and elongation percentage is 30%.
Embodiment 2
The polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment, is grouped by the one-tenth of following weight/mass percentage composition
Become: Al:5.5%, Sn:2.5%, Zr:3.0%, Nb:0.3%, Mo:0.3%, W:1.0%, Ta:1.0%,
Si:0.25%, C:0.03%, surplus is Ti and inevitable impurity.
The preparation method of the polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment is: 0 grade of titanium sponge, aluminium shot,
In the middle of Ti-Sn intermediate alloy, sponge zirconium, Al-Nb intermediate alloy, Al-Mo intermediate alloy, Al-Si
Alloy and Ti-C intermediate alloy, be bundled into alloy bag by design composition by the raw material in addition to titanium sponge, with
Titanium sponge is suppressed together and is obtained electrode, and electrode prepares alloy cast ingot through vacuum consumable arc-melting,
Alloy cast ingot, after surface strips off the skin and cuts rising head and tail end, carries out cogging forging on hydrostatic forging machine
Make and 2 fire time high temperature β phase regions forgings and 2 fire time two-phase sections forgings, the most again through solution treatment and
Ageing Treatment.The heating-up temperature of described cogging forging is 1150 DEG C, the forging temperature of 2 fire time high temperature forgings
Degree is for respectively 1070 DEG C and 1050 DEG C, and 2 fire time two-phase section forging temperatures are all 1010 DEG C, described
Cogging forging and the described high temperature forging of every fire time are two piers two and pull out forging；The temperature of described solution treatment
Being 1030 DEG C, temperature retention time is 2h, and the temperature of described Ageing Treatment is 680 DEG C, and temperature retention time is
3h。
The final tissue that Fig. 2 is the obtained alloy of the present embodiment, from figure 2 it can be seen that this enforcement
Titanium alloy prepared by example is typical bifurcation tissue, and primary alpha phase is about 10%, and structural homogenity is good.
The present embodiment polynary solid solution, strengthened, heat-resistant titanium alloy bar after solution treatment and Ageing Treatment
Tensile strength under room temperature condition is 1110MPa, and yield strength is 985MPa, and elongation percentage is 10%,
This heat-resistant titanium alloy bar tensile strength under the conditions of temperature is 650 DEG C is 690MPa, and surrender is strong
Degree is 580MPa, and elongation percentage is 32%.
Embodiment 3
The polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment, is grouped by the one-tenth of following weight/mass percentage composition
Become: Al:6.5%, Sn:3.5%, Zr:5.0%, Nb:0.7%, Mo:0.7%, W:2.0%, Ta:2.0%,
Si:0.45%, C:0.07%, surplus is Ti and inevitable impurity.
The preparation method of the polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment is: 0 grade of titanium sponge, aluminium shot,
In the middle of Ti-Sn intermediate alloy, sponge zirconium, Al-Nb intermediate alloy, Al-Mo intermediate alloy, Al-Si
Alloy and Ti-C intermediate alloy, be bundled into alloy bag by design composition by the raw material in addition to titanium sponge, with
Titanium sponge is suppressed together and is obtained electrode, and electrode prepares alloy cast ingot through vacuum consumable arc-melting,
Alloy cast ingot, after surface strips off the skin and cuts rising head and tail end, carries out cogging forging on hydrostatic forging machine
Make and 2 fire time high temperature β phase regions forgings and 2 fire time two-phase sections forgings, the most again through solution treatment and
Ageing Treatment.The heating-up temperature of described cogging forging is 1200 DEG C, the forging temperature of 2 fire time high temperature forgings
Degree is for respectively 1100 DEG C and 1080 DEG C, and 2 fire time two-phase section forging temperatures are all 1030 DEG C, described
Cogging forging and the described high temperature forging of every fire time are two piers two and pull out forging；The temperature of described solution treatment
Being 1040 DEG C, temperature retention time is 2h, and the temperature of described Ageing Treatment is 700 DEG C, and temperature retention time is
3h。
The final tissue that Fig. 3 is the obtained alloy of the present embodiment, from figure 3, it can be seen that this enforcement
Titanium alloy prepared by example is typical bifurcation tissue, and primary alpha phase is about 15%, and structural homogenity is good.
The present embodiment polynary solid solution, strengthened, heat-resistant titanium alloy bar after solution treatment and Ageing Treatment
Tensile strength under room temperature condition is 1190MPa, and yield strength is 1090MPa, and elongation percentage is 8.5%,
This heat-resistant titanium alloy bar tensile strength under the conditions of temperature is 650 DEG C is 705MPa, and surrender is strong
Degree is 590MPa, and elongation percentage is 25%.
Embodiment 4
The polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment, is grouped into by the one-tenth of following mass percent:
Al:6.5%, Sn:3.5%, Zr:5.0%, Nb:0.3%, Mo:0.3%, W:2.0%, Ta:2.0%,
Si:0.45%, C:0.03%, surplus is Ti and inevitable impurity.
The preparation method of the polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment is: 0 grade of titanium sponge, aluminium shot,
In the middle of Ti-Sn intermediate alloy, sponge zirconium, Al-Nb intermediate alloy, Al-Mo intermediate alloy, Al-Si
Alloy and Ti-C intermediate alloy, be bundled into alloy bag by design composition by the raw material in addition to titanium sponge, with
Titanium sponge is suppressed together and is obtained electrode, and electrode prepares alloy cast ingot through vacuum consumable arc-melting,
Alloy cast ingot, after surface strips off the skin and cuts rising head and tail end, carries out cogging forging on hydrostatic forging machine
Make and 2 fire time high temperature β phase regions forgings and 2 fire time two-phase sections forgings, the most again through solution treatment and
Ageing Treatment.The heating-up temperature of described cogging forging is 1180 DEG C, the forging temperature of 2 fire time high temperature forgings
Degree is for respectively 1100 DEG C and 1050 DEG C, and 2 fire time two-phase section forging temperatures are all 1000 DEG C, described
Cogging forging and the described high temperature forging of every fire time are two piers two and pull out forging；The temperature of described solution treatment
Being 1035 DEG C, temperature retention time is 2h, and the temperature of described Ageing Treatment is 690 DEG C, and temperature retention time is
2.5h。
The alloy that Fig. 4 is obtained by the present embodiment is finally organized, figure 4, it is seen that this enforcement
Titanium alloy prepared by example is typical bifurcation tissue, and primary alpha phase is about 14%, and structural homogenity is good.
The present embodiment polynary solid solution, strengthened, heat-resistant titanium alloy bar after solution treatment and Ageing Treatment
Tensile strength under room temperature condition is 1150MPa, and yield strength is 1040MPa, and elongation percentage is 9.0%,
This heat-resistant titanium alloy bar tensile strength under the conditions of temperature is 650 DEG C is 690MPa, and surrender is strong
Degree is 585MPa, and elongation percentage is 28%.
Embodiment 5
The polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment, is grouped by the one-tenth of following weight/mass percentage composition
Become: Al:5.5%, Sn:2.5%, Zr:4.0%, Nb:0.5%, Mo:0.3%, W:1.5%, Ta:1.5%,
Si:0.3%, C:0.04%, surplus is Ti and inevitable impurity.
The preparation method of the polynary solid solution, strengthened, heat-resistant titanium alloy of the present embodiment is: 0 grade of titanium sponge, aluminium shot,
In the middle of Ti-Sn intermediate alloy, sponge zirconium, Al-Nb intermediate alloy, Al-Mo intermediate alloy, Al-Si
Alloy and Ti-C intermediate alloy, be bundled into alloy bag by design composition by the raw material in addition to titanium sponge, with
Titanium sponge is suppressed together and is obtained electrode, and electrode prepares alloy cast ingot through vacuum consumable arc-melting,
Alloy cast ingot, after surface strips off the skin and cuts rising head and tail end, carries out cogging forging on hydrostatic forging machine
Make and 2 fire time high temperature β phase regions forgings and 2 fire time two-phase sections forgings, the most again through solution treatment and
Ageing Treatment.The heating-up temperature of described cogging forging is 1180 DEG C, the forging temperature of 2 fire time high temperature forgings
Degree is for respectively 1100 DEG C and 1050 DEG C, and 2 fire time two-phase section forging temperatures are all 1000 DEG C, described
Cogging forging and the described high temperature forging of every fire time are two piers two and pull out forging；The temperature of described solution treatment
Being 1035 DEG C, temperature retention time is 2h, and the temperature of described Ageing Treatment is 690 DEG C, and temperature retention time is
2.5h。
The final tissue that Fig. 5 is the obtained alloy of the present embodiment, as can be seen from Figure 5 the present embodiment
The titanium alloy of preparation is typical bifurcation tissue, and primary alpha phase is about 12%, and structural homogenity is good.
The present embodiment polynary solid solution, strengthened, heat-resistant titanium alloy bar after solution treatment and Ageing Treatment
Tensile strength under room temperature condition is 1150MPa, and yield strength is 1045MPa, and elongation percentage is 8.0%,
This heat-resistant titanium alloy bar tensile strength under the conditions of temperature is 650 DEG C is 700MPa, and surrender is strong
Degree is 590MPa, and elongation percentage is 28%.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention.All
It is that any simple modification, change and the equivalence made above example according to inventive technique essence becomes
Change, all still fall within the protection domain of technical solution of the present invention.
Claims (6)
1. a polynary solid solution, strengthened, heat-resistant titanium alloy, it is characterised in that by following mass percent
One-tenth be grouped into: Al 5.5%～6.5%, Sn 2.5%～3.5%, Zr 3.0%～5.0%, Nb 0.3%～0.7%,
Mo 0.3%～0.7%, W 1.0%～2.0%, Ta 1.0%～2.0%, Si 0.25%～0.45%, C
0.03%～0.07%, surplus is Ti and other inevitable impurity；This titanium alloy is through solid solution and timeliness
After process, the tensile strength under the conditions of temperature is 650 DEG C is not less than 680MPa, and yield strength is not
Less than 580MPa, elongation percentage is not less than 20%.
The polynary solid solution, strengthened, heat-resistant titanium alloy of one the most according to claim 1, its feature exists
In, the one-tenth of following mass percent it is grouped into: Al 6.0%, Sn 3.0%, Zr 4.0%, Nb 0.5%,
Mo 0.5%, W 1.5%, Ta 1.5%, Si 0.35%, C 0.05%, surplus is that Ti is with inevitable
Impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of one the most according to claim 1, its feature exists
In, the one-tenth of following mass percent it is grouped into: Al 5.5%, Sn 2.5%, Zr 3.0%, Nb 0.3%,
Mo 0.3%, W 1.0%, Ta 1.0%, Si 0.25%, C 0.03%, surplus is that Ti is with inevitable
Impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of one the most according to claim 1, its feature exists
In, the one-tenth of following mass percent it is grouped into: Al 6.5%, Sn 3.5%, Zr 5.0%, Nb 0.7%,
Mo 0.7%, W 2.0%, Ta 2.0%, Si 0.45%, C 0.07%, surplus is that Ti is with inevitable
Impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of one the most according to claim 1, its feature exists
In, the one-tenth of following mass percent it is grouped into: Al 6.5%, Sn 3.5%, Zr 5.0%, Nb 0.3%,
Mo 0.3%, W 2.0%, Ta 2.0%, Si 0.45%, C 0.03%, surplus is that Ti is with inevitable
Impurity.
The polynary solid solution, strengthened, heat-resistant titanium alloy of one the most according to claim 1, its feature exists
In, the one-tenth of following mass percent it is grouped into: Al 5.5%, Sn 2.5%, Zr 4.0%, Nb 0.5%,
Mo 0.3%, W 1.5%, Ta 1.5%, Si 0.30%, C 0.04%, surplus is that Ti is with inevitable
Impurity.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058803A (en) * | 2017-04-19 | 2017-08-18 | 中国航发北京航空材料研究院 | It is a kind of to improve the method for casting ZTA29 alloy-steel casting microstructures |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0931572A (en) * | 1995-07-21 | 1997-02-04 | Sumitomo Metal Ind Ltd | Heat resistant titanium alloy excellent in high temperature fatigue strength |
| JP3395443B2 (en) * | 1994-08-22 | 2003-04-14 | 住友金属工業株式会社 | High creep strength titanium alloy and its manufacturing method |
| CN101074464A (en) * | 2007-06-21 | 2007-11-21 | 上海交通大学 | Composite heat-resisting enhance titanium alloy |
| CN101104898A (en) * | 2007-06-19 | 2008-01-16 | 中国科学院金属研究所 | High-temperature titanium alloy with high heat resistance and high thermal stabilization |
| CN104018027A (en) * | 2014-05-09 | 2014-09-03 | 中国科学院金属研究所 | Novel heat-resisting titanium alloy and processing and manufacturing method and application thereof |
| CN106048305A (en) * | 2016-07-18 | 2016-10-26 | 北京工业大学 | High-temperature titanium alloy rod with excellent comprehensive performance and preparation process thereof |
-
2016
- 2016-06-27 CN CN201610478787.1A patent/CN105950911A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3395443B2 (en) * | 1994-08-22 | 2003-04-14 | 住友金属工業株式会社 | High creep strength titanium alloy and its manufacturing method |
| JPH0931572A (en) * | 1995-07-21 | 1997-02-04 | Sumitomo Metal Ind Ltd | Heat resistant titanium alloy excellent in high temperature fatigue strength |
| CN101104898A (en) * | 2007-06-19 | 2008-01-16 | 中国科学院金属研究所 | High-temperature titanium alloy with high heat resistance and high thermal stabilization |
| CN101074464A (en) * | 2007-06-21 | 2007-11-21 | 上海交通大学 | Composite heat-resisting enhance titanium alloy |
| CN104018027A (en) * | 2014-05-09 | 2014-09-03 | 中国科学院金属研究所 | Novel heat-resisting titanium alloy and processing and manufacturing method and application thereof |
| CN106048305A (en) * | 2016-07-18 | 2016-10-26 | 北京工业大学 | High-temperature titanium alloy rod with excellent comprehensive performance and preparation process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058803A (en) * | 2017-04-19 | 2017-08-18 | 中国航发北京航空材料研究院 | It is a kind of to improve the method for casting ZTA29 alloy-steel casting microstructures |
| 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 |
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