CN103128256A - Preparation method for GH 4133 nickel-base superalloy semisolid blank - Google Patents
Preparation method for GH 4133 nickel-base superalloy semisolid blank Download PDFInfo
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- CN103128256A CN103128256A CN2013100817179A CN201310081717A CN103128256A CN 103128256 A CN103128256 A CN 103128256A CN 2013100817179 A CN2013100817179 A CN 2013100817179A CN 201310081717 A CN201310081717 A CN 201310081717A CN 103128256 A CN103128256 A CN 103128256A
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Abstract
The invention discloses a preparation method for a GH 4133 nickel-base superalloy semisolid blank, and relates to a preparation method of semisolid blanks. The preparation method solves the technical problems that a semisolid secondary heating process exists in the prior art and cost is increased. The preparation method comprises a step of placing and heating GH 4133 nickel-base superalloy in a high-temperature electric furnace to 1130 DEG C- 1135 DEG C and keeping the temperature for 25min- 30min, a step of delivering the GH 4133 nickel-base superalloy into a hot forging die to be forged in a high temperature environment and transformed, a step of heating the transformed GH 4133 nickel-base superalloy to 1420 DEG C- 1425 DEG C and keeping the temperature for 22min- 26min, and a step of carrying out semisolid touching change forming or quenching the GH 4133 nickel-base superalloy to the room temperature. Therefore, the GH 4133 nickel-base superalloy semisolid blank is obtained. According to the preparation method for the GH 4133 nickel-base superalloy semisolid blank, the GH 4133 nickel-base superalloy semisolid blank preparation and the semisolid touching change forming production are enabled to be cooperated, the process of semisolid secondary heating process is omitted, the cost is saved, and processing time is shortened.
Description
Technical field
The present invention relates to a kind of preparation method of semi-solid blank.
Background technology
High temperature alloy be a kind of can be at the metal material of long-term work more than 600 ℃ and under certain stress condition, have the combination properties such as excellent elevated temperature strength, good anti-oxidant and hot corrosion resistance, good fatigue behaviour, fracture toughness, become the irreplaceable critical material of military-civil gas-turbine unit hot-end component.Mainly can be divided into iron-base superalloy, nickel base superalloy and cobalt base superalloy by matrix element.Can be divided into wrought superalloy, cast superalloy and powder metallurgy high-temperature alloy by preparation technology.By schedule of reinforcement, solution strengthening type, precipitation strength type, oxide dispersion intensifying type and fibre strengthening type etc. are arranged.High temperature alloy is mainly for the manufacture of the high temperature parts such as turbo blade, guide vane, the turbine disk, high-pressure compressor dish and combustion chamber of aviation, naval vessels and industrial gas turbine, also for the manufacture of the conversion equal energy source conversion equipment of aerospace craft, rocket engine, nuclear reactor, petrochemical equipment and coal.
The manufacturing process of high temperature alloy mainly comprises forging and casting at present.Casting utilizes the mobility filling mold cavity of liquid high temperature alloy and the technical process of shaping product.Forging is that high temperature alloy is carried out solid-state high temperature thermoplasticity distortion, makes it be full of mold cavity, thus the technical process of shaping required product.Both cut both ways, wherein cast with moulding complicated shape part and be good at, forge to enhance product performance as advantage.But both do not possessing advantage aspect shaping high-performance complicated shape high temperature alloy part.For the shaping demand of high-performance complicated shape high temperature alloy part, the semi-solid die casting technology has certain application prospect and value.The semi-solid die casting technology is that 20 century 70s are by a metal Precision Forming Technology of the M.C.Flemings of Massachusetts Institute Technology and D.B.Spencer invention.The semi-solid die casting technology is a kind of precision, near-net-shape technology of having inherited the overall merit of casting, forging process.Compare with traditional liquid die casting, the semi-solid die casting technology has forming temperature low (liquid-solid phase warm area), die life is long, part accuracy is high, even tissue and mechanical property advantages of higher thereof; Compare with solid-state forging, its remarkable advantage is that available less power, lower cost once-forming are complex-shaped, mechanical property is close to the constitutional detail of forging.
In the semi-solid die casting technology, main technological route is: blank preparation, post bake (remelting) and thixotropic forming.Wherein how preparing semi-solid blank is a step of semi-solid die casting technology most critical.Because its decision and affect whole forming process is extremely important to microstructure morphology and the mechanical property of formed product.But existing method has the semisolid post bake process, has increased cost.
Summary of the invention
The objective of the invention is has the semisolid post bake process in order to solve existing method, has increased the technical problem of cost, and a kind of preparation method of GH4133 nickel base superalloy semi-solid blank is provided.
The preparation method of GH4133 nickel base superalloy semi-solid blank is as follows:
One, be that 20kW, firing rate are to heat up under the condition of 25-35 ℃/min with the GH4133 nickel base superalloy at high-temperature electric resistance furnace power, when rising to 460 ℃, temperature opens argon protective device, then continuing to be warming up under argon flow amount is the condition of 25ml/s-50ml/s is 1130 ℃-1135 ℃ of initial forging temperatures, insulation 25min-30min;
Two, being transported on the warm and hot forging mould through the GH4133 nickel base superalloy that step 1 is processed, is that 20%-30%, final forging temperature are to carry out the forge hot distortion, the GH4133 nickel base superalloy blank that obtains being out of shape under the condition of 950 ℃-980 ℃ at deflection;
three, to be transported to through the GH4133 nickel base superalloy that step 1 is processed when carrying out the forge hot distortion on the warm and hot forging mould, close argon protective device, high-temperature electric resistance furnace is risen to 1420 ℃-1425 ℃ with the programming rate of 5 ℃/min-15 ℃/min, again the GH4133 nickel base superalloy blank of distortion is put into high-temperature electric resistance furnace after completing steps two, open argon protective device, be under the condition of 45ml/s-80ml/s, the GH4133 nickel base superalloy blank of distortion to be warming up to 1420 ℃-1425 ℃ at argon flow amount, insulation 22min-26min, namely getting GH4133 nickel base superalloy semi solid slurry (is that solid phase is globular crystal, liquid phase is around its solid-liquid mixtures on every side).
Four, will carry out semi-solid die casting or be quenched to room temperature through the GH4133 nickel base superalloy semi solid slurry of insulation, namely getting GH4133 nickel base superalloy semi-solid blank.
GH4133 nickel base superalloy described in step 1 forms according to the Ni of quality percentage composition by 19.0～22.0%Cr, 2.40～2.80%Ti, 0.60～1.00%Al, 0.03～0.08%C, Fe≤4.0%, B≤0.010%, Ce≤0.010%, Mn≤0.35%, Si≤0.65%, P≤0.015%, S≤0.007% and surplus.
Warm and hot forging mould described in step 2 is comprised of structure identical mold and bed die, and described mold is comprised of three heater built-in holes, two water-cooling system passages and four U-shaped grooves.Described warm and hot forging mould adopts H13 die material steel to make, hardness is HRC47-51, adopt built-in resistor silk heater heating mould in the built-in hole 1-1 of heater, the built-in hole 1-2 of heater and the built-in hole 1-3 of heater, heating power is 26kW, described resistance wire is Cr15Ni60 type nickel-chromium resistance wire, adopt inside and outside two-layer high frequency porcelain tube to insulate and conduct heat, the internal layer porcelain tube plays a supportive role.
GH4133 high temperature alloy after distortion described in step 3 is heated in 1420 ℃ of-1425 ℃ of processes, adopt 3 calibration number to carry out monitoring temperature for the platinum rhodium 10-platinum thermocouple of WRP type, control accuracy is ± 1.5 ℃, wherein 1 thermocouple is connected with the temperature control system high-temperature electric resistance furnace, fire box temperature is monitored, and other two pyrometer couples directly contact GH4133 nickel base superalloy blank surface and carry out monitoring temperature.
The mode of texturing of the distortion of forge hot described in step 2 adopts repeatedly accumulated deformation mode, reach the total deformation of 20%-30%, wherein the single deflection is 5%-8%, with multi-direction alternately forging deformation, after namely making in one direction GH4133 high temperature alloy distortion 5%-8%, material overturning is distortion again on other direction, makes by that analogy 6 faces alternately realize alternately distortion.The medium that uses that quenches described in step 4 is that mass fraction is 0.1%～0.3% polyvinyl alcohol water solution.
The present invention adopts warm and hot forging the GH4133 nickel base superalloy to be carried out warm and hot forging in solid-state high temperature range, to realize the large plastometric set of as cast condition GH4133 nickel base superalloy, its microstructure of refinement, eliminate defective, improve its mechanical property, thereby realize sufficient strain inducing effect.Then directly the GH4133 nickel base superalloy that finish-forging is complete is transferred to and is warming up to semi-solid temperature in high temperature resistance furnace and is incubated processing.Strict semi-solid temperature and the temperature retention time controlled realizes the preparation of GH4133 nickel base superalloy semi-solid blank by the spheroidizing that produces in constant temperature process.
The present invention has following beneficial effect:
(1), method of the present invention only needs the forge hot distortion of the solid-state high temperature of GH4133 nickel base superalloy and the isothermal processes of semi-solid temperature, processing step is simple, cost is low.In addition, what the inventive method related to is that traditional forge hot distortion and semi-solid isothermal processed, therefore the method is easy to operate.
(2), the present invention can realize the preparation of large volume GH4133 nickel base superalloy semi-solid blank.Adopt the inventive method, can prepare 64000cm
3Large volume GH4133 nickel base superalloy semi-solid blank.Because the present invention adopts forging equipment to carry out predeformation to the GH4133 nickel base superalloy, can utilize than large-tonnage equipment large-sized GH4133 nickel base superalloy as cast condition blank is carried out forge hot, thereby realize large-sized GH4133 nickel base superalloy semi-solid blank preparation.
(3), adopt directly transport to after the distortion of GH4133 nickel base superalloy warm and hot forging carry out in high temperature resistance furnace that semi-solid isothermal processes can the conservation of power energy, reduce the complex process degree, improve GH4133 nickel base superalloy semisolid preparation efficiency.
(4), the inventive method makes GH4133 nickel base superalloy semi-solid blank preparation coordinate mutually with semi-solid die casting production, saves the semisolid post bake process, saving cost, shortened process.
(5), the preparation process of the inventive method can effectively solve the technical bottleneck problems such as grain refinement, granulation and anti-oxidation of semi solid slurry, realizes the preparation of the solid-state blank of high-quality GH4133 nickel base superalloy.
Description of drawings
Fig. 1 is the subjectivity figure of mold in the specific embodiment three;
Fig. 2 is the side view of mold in the specific embodiment three;
Fig. 3 is the top view of mold in the specific embodiment three.
The specific embodiment
Technical solution of the present invention is not limited to the following cited specific embodiment, also comprises any combination that each specific embodiment is asked.
The specific embodiment one: in present embodiment, the preparation method of GH4133 nickel base superalloy semi-solid blank is as follows:
One, be that 20kW, firing rate are to heat up under the condition of 25-35 ℃/min with the GH4133 nickel base superalloy at high-temperature electric resistance furnace power, when rising to 460 ℃, temperature opens argon protective device, then continuing to be warming up under argon flow amount is the condition of 25ml/s-50ml/s is 1130 ℃-1135 ℃ of initial forging temperatures, insulation 25min-30min;
Two, being transported on the warm and hot forging mould through the GH4133 nickel base superalloy that step 1 is processed, is that 20%-30%, final forging temperature are to carry out the forge hot distortion, the GH4133 nickel base superalloy blank that obtains being out of shape under the condition of 950 ℃-980 ℃ at deflection;
three, to be transported to through the GH4133 nickel base superalloy that step 1 is processed when carrying out the forge hot distortion on the warm and hot forging mould, close argon protective device, high-temperature electric resistance furnace is risen to 1420 ℃-1425 ℃ with the programming rate of 5 ℃/min-15 ℃/min, again the GH4133 nickel base superalloy blank of distortion is put into high-temperature electric resistance furnace after completing steps two, open argon protective device, be under the condition of 45ml/s-80ml/s, the GH4133 nickel base superalloy blank of distortion to be warming up to 1420 ℃-1425 ℃ at argon flow amount, insulation 22min-26min, namely getting GH4133 nickel base superalloy semi solid slurry (is that solid phase is globular crystal, liquid phase is around its solid-liquid mixtures on every side).
Four, will carry out semi-solid die casting or be quenched to room temperature through the GH4133 nickel base superalloy semi solid slurry of insulation, namely getting GH4133 nickel base superalloy semi-solid blank.
The specific embodiment two: what present embodiment was different from the specific embodiment one is that the GH4133 nickel base superalloy described in step 1 forms according to the Ni of quality percentage composition by 19.0～22.0%Cr, 2.40～2.80%Ti, 0.60～1.00%A1,0.03～0.08%C, Fe≤4.0%, B≤0.010%, Ce≤0.010%, Mn≤0.35%, Si≤0.65%, P≤0.015%, S≤0.007% and surplus.Other is identical with the specific embodiment one.
The specific embodiment three: what present embodiment was different from one of the specific embodiment one or two is that the warm and hot forging mould described in step 2 is comprised of structure identical mold and bed die, and described mold is comprised of the built-in hole 1-1 of heater, the built-in hole 1-2 of heater, the built-in hole 1-3 of heater, water-cooling system passage 2-1, water-cooling system passage 2-2, U-shaped groove 3-1, U-shaped groove 3-2, U-shaped groove 3-3 and U-shaped groove 3-4.Other is identical with one of the specific embodiment one or two.
The specific embodiment four: what present embodiment was different from one of specific embodiment one to three is that described warm and hot forging mould adopts the manufacturing of H13 die material steel, hardness is HRC47-51, adopt built-in resistor silk heater heating mould in the built-in hole 1-1 of heater, the built-in hole 1-2 of heater and the built-in hole 1-3 of heater, heating power is 26kW, described resistance wire is Cr15Ni60 type nickel-chromium resistance wire, adopts inside and outside two-layer high frequency porcelain tube to insulate and conduct heat.Other is identical with one of specific embodiment one to three.
The specific embodiment five: present embodiment is different from one of specific embodiment one to four is that GH4133 high temperature alloy after the distortion described in step 3 is heated in 1420 ℃ of-1425 ℃ of processes, adopt 3 calibration number to carry out monitoring temperature for the platinum rhodium 10-platinum thermocouple of WRP type, control accuracy is ± 1.5 ℃, wherein 1 thermocouple is connected with the temperature control system high-temperature electric resistance furnace, fire box temperature is monitored, and other two pyrometer couples directly contact GH4133 nickel base superalloy blank surface and carry out monitoring temperature.Other is identical with one of specific embodiment one to four.
The specific embodiment six: present embodiment is different from one of specific embodiment one to five is that the temperature of the mould of warm and hot forging described in step 2 is 250 ℃-300 ℃.Other is identical with one of specific embodiment one to five.
The specific embodiment seven: what present embodiment was different from one of specific embodiment one to six is that the mode of texturing that forge hot described in step 2 is out of shape adopts repeatedly accumulated deformation mode, reach the total deformation of 20%-30%, wherein the single deflection is 5%-8%, with multi-direction alternately forging deformation, after namely making in one direction GH4133 high temperature alloy distortion 5%-8%, material overturning is distortion again on other direction, makes by that analogy 6 faces alternately realize alternately distortion.Other is identical with one of specific embodiment one to six.
The specific embodiment eight: what present embodiment was different from one of specific embodiment one to seven is that the medium that described in step 4, quenching is used is that mass fraction is 0.1%～0.3% polyvinyl alcohol water solution.Other is identical with one of specific embodiment one to seven.
Adopt following experimental verification effect of the present invention in conjunction with Fig. 1-3:
In this experiment, the preparation method of GH4133 nickel base superalloy semi-solid blank is as follows:
One, be that 20kW, firing rate are to heat up under the condition of 35 ℃/min with the GH4133 nickel base superalloy at high-temperature electric resistance furnace power, when rising to 460 ℃, temperature opens argon protective device, then under being the condition of 50ml/s, argon flow amount continues to be warming up to 1135 ℃, insulation 25min;
two, utilizing terraced corner bolt to pass U-shaped groove is mounted to the mold of warm and hot forging mould on the moved cross beam of forging equipment, utilize terraced corner bolt to pass U-shaped groove 3-1, U-shaped groove 3-2, U-shaped groove 3-3 and U-shaped groove 3-4 are fixed on the bed die of warm and hot forging mould on work top, the built-in hole 1-1 of heater in the warm and hot forging mould, the built-in hole 1-2 of heater, resistance wire (resistance wire material selection Cr15Ni60 nickel-chromium resistance wire) is arranged in the built-in hole 1-3 of heater, described resistance wire adopts inside and outside two-layer high frequency porcelain tube insulate and conduct heat (the internal layer porcelain tube plays a supportive role), then be with warm and hot forging mold heated to 250 ℃ under the condition of 26kW at heating power, open the water-cooled temperature regulating device, making water keep the temperature of warm and hot forging mould by water-cooling system passage 2-1 and water-cooling system passage 2-2 is 250 ℃,
Three, will be transported on the warm and hot forging mould through the GH4133 nickel base superalloy that step 1 is processed, be under the condition of 960 ℃-980 ℃ in final forging temperature, with the multi-direction alternately forging deformation of the condition of single deflection 5%-8%, in forging process, deflection is 30%, carry out the forge hot distortion, the GH4133 nickel base superalloy blank that obtains being out of shape;
Three, will be transported to through the GH4133 nickel base superalloy that step 1 is processed when carrying out the forge hot distortion on the warm and hot forging mould; close argon protective device; high-temperature electric resistance furnace is risen to 1425 ℃ with the programming rate of 15 ℃/min; again the GH4133 nickel base superalloy blank of distortion is put into high-temperature electric resistance furnace; be under the condition of 80ml/s, the GH4133 nickel base superalloy blank of distortion to be warming up to 1425 ℃ at argon flow amount; insulation 25min; then be quenched to room temperature, namely get GH4133 nickel base superalloy semi-solid blank.
In this experiment in step 2 the mold of warm and hot forging mould used and bed die length * wide * height is 700mm * 460mm * 470mm, the diameter in the heater built-in hole of mold is 50mm, the diameter of water-cooling system passage is 30mm, and U-shaped slot length is that 40mm, width are 32mm.
Claims (8)
1.GH4133 the preparation method of nickel base superalloy semi-solid blank is characterized in that the preparation method of GH4133 nickel base superalloy semi-solid blank is as follows:
One, be that 20kW, firing rate are to heat up under the condition of 25-35 ℃/min with the GH4133 nickel base superalloy at high-temperature electric resistance furnace power, when rising to 460 ℃, temperature opens argon protective device, then continuing to be warming up under argon flow amount is the condition of 25ml/s-50ml/s is 1130 ℃-1135 ℃ of initial forging temperatures, insulation 25min-30min;
Two, being transported on the warm and hot forging mould through the GH4133 nickel base superalloy that step 1 is processed, is that 20%-30%, final forging temperature are to carry out the forge hot distortion, the GH4133 nickel base superalloy blank that obtains being out of shape under the condition of 950 ℃-980 ℃ at deflection;
three, to be transported to through the GH4133 nickel base superalloy that step 1 is processed when carrying out the forge hot distortion on the warm and hot forging mould, close argon protective device, high-temperature electric resistance furnace is risen to 1420 ℃-1425 ℃ with the programming rate of 5 ℃/min-15 ℃/min, again the GH4133 nickel base superalloy blank of distortion is put into high-temperature electric resistance furnace after completing steps two, open argon protective device, be under the condition of 45ml/s-80ml/s, the GH4133 nickel base superalloy blank of distortion to be warming up to 1420 ℃-1425 ℃ at argon flow amount, insulation 22min-26min, namely getting GH4133 nickel base superalloy semi solid slurry (is that solid phase is globular crystal, liquid phase is around its solid-liquid mixtures on every side).
Four, will carry out semi-solid die casting or be quenched to room temperature through the GH4133 nickel base superalloy semi solid slurry of insulation, namely getting GH4133 nickel base superalloy semi-solid blank.
2. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 1, is characterized in that the GH4133 nickel base superalloy described in step 1 forms according to the Ni of quality percentage composition by 19.0～22.0%Cr, 2.40～2.80%Ti, 0.60～1.00%Al, 0.03～0.08%C, Fe≤4.0%, B≤0.010%, Ce≤0.010%, Mn≤0.35%, Si≤0.65%, P≤0.015%, S≤0.007% and surplus.
3. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 1, it is characterized in that the warm and hot forging mould described in step 2 is comprised of structure identical mold and bed die, described mold is comprised of the built-in hole of heater (1-1), the built-in hole of heater (1-2), the built-in hole of heater (1-3), water-cooling system passage (2-1), water-cooling system passage (2-2), U-shaped groove (3-1), U-shaped groove (3-2), U-shaped groove (3-3) and U-shaped groove (3-4).
4. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 3, it is characterized in that described warm and hot forging mould adopts the manufacturing of H13 die material steel, hardness is HRC47-51, adopt built-in resistor silk heater heating mould in the built-in hole of heater (1-1), the built-in hole of heater (1-2) and the built-in hole of heater (1-3), heating power is 26kW, described resistance wire is Cr15Ni60 type nickel-chromium resistance wire, adopts inside and outside two-layer high frequency porcelain tube to insulate and conduct heat.
5. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 1, it is characterized in that the GH4133 high temperature alloy after the distortion described in step 3 is heated in 1420 ℃ of-1425 ℃ of processes, adopt 3 calibration number to carry out monitoring temperature for the platinum rhodium 10-platinum thermocouple of WRP type, control accuracy is ± 1.5 ℃, wherein 1 thermocouple is connected with the temperature control system high-temperature electric resistance furnace, fire box temperature is monitored, and other two pyrometer couples directly contact GH4133 nickel base superalloy blank surface and carry out monitoring temperature.
6. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 1, the temperature that it is characterized in that the mould of warm and hot forging described in step 2 is 250 ℃-300 ℃.
7. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 1, the mode of texturing that it is characterized in that the distortion of forge hot described in step 2 adopts repeatedly accumulated deformation mode, reach the total deformation of 20%-30%, wherein the single deflection is 5%-8%, with multi-direction alternately forging deformation, after namely making in one direction GH4133 high temperature alloy distortion 5%-8%, material overturning is distortion again on other direction, makes by that analogy 6 faces alternately realize alternately distortion.
8. the preparation method of GH4133 nickel base superalloy semi-solid blank according to claim 1, is characterized in that the medium that described in step 4, quenching is used is that mass fraction is 0.1%～0.3% polyvinyl alcohol water solution.
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| CN109628783A (en) * | 2019-02-22 | 2019-04-16 | 宁国市华成金研科技有限公司 | A kind of manufacturing method of erosion resistant foundry nickel base superalloy |
| CN109706413A (en) * | 2019-03-07 | 2019-05-03 | 哈尔滨工业大学 | A kind of preparation method of the semi-solid blank of GH3536 nickel base superalloy |
| CN113770338A (en) * | 2021-08-27 | 2021-12-10 | 常州机电职业技术学院 | Metal matrix composite material forming system and forming method |
| CN116287807A (en) * | 2023-03-23 | 2023-06-23 | 江苏美特林科特殊合金股份有限公司 | Preparation method of short-process alloy forging |
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| CN107983929A (en) * | 2018-01-05 | 2018-05-04 | 北京科技大学 | A kind of heating furnace cobalt alloy cushion block semi-solid die casting process |
| CN109628783A (en) * | 2019-02-22 | 2019-04-16 | 宁国市华成金研科技有限公司 | A kind of manufacturing method of erosion resistant foundry nickel base superalloy |
| CN109628783B (en) * | 2019-02-22 | 2020-12-15 | 宁国市华成金研科技有限公司 | Method for manufacturing corrosion-resistant cast nickel-based high-temperature alloy |
| CN109706413A (en) * | 2019-03-07 | 2019-05-03 | 哈尔滨工业大学 | A kind of preparation method of the semi-solid blank of GH3536 nickel base superalloy |
| CN113770338A (en) * | 2021-08-27 | 2021-12-10 | 常州机电职业技术学院 | Metal matrix composite material forming system and forming method |
| CN116287807A (en) * | 2023-03-23 | 2023-06-23 | 江苏美特林科特殊合金股份有限公司 | Preparation method of short-process alloy forging |
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