CN111020298A - GH3039 high-temperature alloy bar and preparation method thereof - Google Patents
GH3039 high-temperature alloy bar and preparation method thereof Download PDFInfo
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- CN111020298A CN111020298A CN201911338516.6A CN201911338516A CN111020298A CN 111020298 A CN111020298 A CN 111020298A CN 201911338516 A CN201911338516 A CN 201911338516A CN 111020298 A CN111020298 A CN 111020298A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
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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
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
Abstract
The invention discloses a preparation method of a GH3039 high-temperature alloy bar, which is implemented according to the following steps: selecting a GH3039 high-temperature alloy ingot, smelting by a vacuum induction smelting and electroslag remelting two-linkage smelting process, and cooling by water quenching; heating and preserving heat of the processed cast ingot, upsetting, cogging and forging for 3-5 times of fire, continuously returning to the furnace, wherein the deformation of each time of fire is 20-35%, quenching and cooling to obtain a blank; homogenizing and intermediate annealing the blank; heating and insulating the annealed blank, and performing upsetting and drawing deformation for 5-7 times, wherein the specification of the blank after upsetting and drawing is 500-550mm in eight directions; heating and insulating the blank after upsetting and drawing, carrying out drawing deformation for 2-3 times, and cooling in the air; heating and preserving the temperature of the drawn material, performing round forging for 1 fire time, and cooling in air to obtain a GH3039 high-temperature alloy bar; the invention adopts the free forging technology to prepare the alloy bar with high strength and high toughness, and is simple and easy to implement.
Description
Technical Field
The invention belongs to the technical field of non-ferrous metal material processing technology, relates to a preparation method of a GH3039 high-temperature alloy bar, and also relates to a GH3039 high-temperature alloy bar.
Background
The GH3039 alloy is a solid solution strengthening type nickel-based high-temperature alloy, the main strengthening elements are chromium and molybdenum, the alloy has excellent strength and toughness at 800 ℃ and below, good oxidation resistance at 1000 ℃, stable structure in the using process and good cold forming and welding performance. Therefore, the high-temperature load-bearing component is widely applied to various high-temperature load-bearing components of aviation, aerospace, navigation and the like. As a single-phase austenite alloy, the structure is abnormally stable in the using process. Based on the excellent performance, the composite material is widely applied to parts of aeroengine combustion chambers and afterburners.
The GH3039 alloy has the main advantages that (1) the main solid solution strengthening elements added in the alloy are not easy to segregate, and the ingot casting smelting process is easy to control; (2) the ingot casting homogenization process is simple, the quality control is easy, and the production period and the cost are saved; (3) the continuous melting is carried out at the same forging temperature, so that the efficiency is high; (4) the forging yield of industrial production can reach more than 80 percent, and the forging yield is high.
The main risks in industrial production of GH3039 alloy bars are: (1) the alloy has high chromium content, relatively high carbon content and a large number of carbide strips, and a crack source is easily formed at a large carbide aggregation part in the room-temperature stretching process to cause fracture and cause difficulty in improving the room-temperature stretching performance and plasticity; (2) the alloy contains more than 25 percent of solid solution strengthening elements, and local coarse grains are caused due to non-uniform components or non-uniform deformation, so that the performance is reduced; (3) the bar material with the specification of phi 250 mm-phi 400mm has radial temperature gradient, so that the uniformity of radial structure and the uniformity of performance are difficult to control.
At present, the published patents at home and abroad are few about the preparation of GH3039 alloy large bars. The prior available data do not comprehensively consider the relevance of the risk points, and the advantages of the GH3039 alloy material cannot be brought into full play.
Disclosure of Invention
The invention aims to provide a preparation method of a GH3039 high-temperature alloy bar, which can be used for preparing the GH3039 high-temperature alloy bar with high strength and high toughness.
Another object of the invention is a GH3039 superalloy bar.
The technical scheme adopted by the invention is that a GH3039 high-temperature alloy bar preparation method is implemented according to the following steps:
step 1, selecting a GH3039 high-temperature alloy ingot, smelting by a vacuum induction smelting and electroslag remelting two-link smelting process, and performing water quenching and cooling;
step 2, heating and preserving heat of the cast ingot treated in the step 1, carrying out upsetting-drawing cogging forging for 3-5 times to obtain an octagonal specification, carrying out cogging forging to obtain a continuous remelting furnace, wherein the deformation of each heating time is 20-35%, quenching and cooling to obtain a blank with an octagonal section;
step 3, homogenizing and intermediate annealing the blank with the section of eight directions;
step 4, heating and insulating the annealed blank, and carrying out upsetting-drawing deformation for 5-7 times with deformation amount of 30-40% per time to obtain an intermediate blank;
step 5, heating and insulating the intermediate blank, carrying out drawing deformation for 2-3 times of fire, wherein the deformation amount of each time of fire is 35-45%, and cooling in air;
and 6, heating and insulating the drawn material, performing round forging for 1 fire time, wherein the forging deformation is less than or equal to 10%, and cooling in air to obtain the GH3039 high-temperature alloy bar.
Step 1, the GH3039 high-temperature alloy cast ingot comprises the following components in percentage by mass of less than or equal to 0.08 percent of C, Si: less than or equal to 0.80 percent, Mn: less than or equal to 0.40 percent, P: less than or equal to 0.02 percent, S: not more than 0.012, Cr: 19% -22%, Cu: less than or equal to 0.2 percent, Mo: 1.8% -2.3%, Ti: 0.35% -0.75%, Nb: 0.9% -1.3%, Al: 0.35% -0.75%, Fe: less than or equal to 3.0 percent, and the balance of Ni, wherein the sum of the mass percentages of the components is 100 percent.
Step 2, the specific process of heating and insulating the cast ingot treated in the step 1 is as follows: and (2) charging the ingot treated in the step (1) into a furnace, heating to 650 ℃, wherein the heat preservation coefficient is 0.6min/mm, then heating to 1080-1120 ℃ at the heating speed of 5-10 ℃/min, wherein the heat preservation coefficient is 0.6min/mm, the heat preservation coefficient of the hot material after returning to the furnace is 0.3min/mm, and quenching and cooling after forging.
The specific process of the step 3 is as follows: heating the material blank with the section of eight directions to 800 ℃, keeping the temperature coefficient at 0.6min/mm, then heating to 1170-1190 ℃ at the heating speed of 5-10 ℃/min, keeping the temperature for 30-40 h, and cooling in the air after the temperature is kept.
The specific process of heating and heat preservation of the blank annealed in the step 4 is as follows: and heating the annealed blank to 800 ℃, wherein the heat preservation coefficient is 0.6min/mm, and then heating to 1050-1070 ℃ at a heating speed of 10-20 ℃/min, wherein the heat preservation coefficient is 0.6 min/mm.
Step 5, heating and heat preservation of the blank after upsetting and drawing are specifically as follows: heating the intermediate blank, raising the temperature to 1000-class 1030 ℃ at a heating speed of 10-20 ℃/min, keeping the heat preservation coefficient at 0.8min/mm, covering the heated blank by an aluminum silicate heat preservation cotton soft sleeve, keeping the temperature for 60-90min before covering, and carrying out heat supplement to 1000-class 1030 ℃ through a heating furnace.
Step 6, the concrete process of heating and heat preservation of the material after the drawing is finished is as follows: heating the material after drawing at a heating speed of 10-20 ℃/min to 950 ℃ and 1000 ℃, wherein the heat preservation coefficient is 0.5 min/mm.
And 6, performing 1-time hot-forging and forging to obtain the round piece by using a spring anvil.
According to another technical scheme adopted by the invention, the GH3039 high-temperature alloy bar is prepared according to a preparation method of the GH3039 high-temperature alloy bar, the grain size reaches above grade 5 according to the GB6395 rating, and carbides are dispersed and distributed in a strip shape.
The GH3039 high-temperature alloy bar can meet the requirements of a room-temperature tensile strength value of 800-900MPa, a room-temperature tensile elongation of 50-70%, a high-temperature tensile strength of 370-450MPa at 800 ℃ and a high-temperature tensile elongation of 90-120%.
The invention has the beneficial effects that:
(1) the GH3039 high-temperature alloy cast ingot is smelted by adopting a two-linkage smelting process of vacuum induction smelting and electroslag remelting, so that the production cost is saved, annealing and homogenizing procedures after cogging are added, local residual coarse grains are eliminated, and the uniform components of the bar are realized.
(2) By controlling the forging process, the grain size grade difference from the edge to the center of the bar with the specification of phi 250 mm-phi 400mm is controlled within 1 grade, and the uniform structure of the large bar is realized.
(3) The high strength and the high toughness of the GH3039 alloy are realized, the tensile strength at room temperature is 900MPa, the tensile elongation at room temperature is 50-70%, and the tensile strength at high temperature of 800 ℃ is 450 MPa. The elongation at high temperature of 800 ℃ is 90-120%.
Drawings
FIG. 1 is a schematic view of the high-magnification microstructure of the cogging material of example 2;
FIG. 2 is a schematic view showing a high magnification microstructure after annealing and homogenization heat treatment of an intermediate blank in example 2;
FIG. 3 is a schematic view of the high-power structure of the forged bar of example 2.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a preparation method of a GH3039 high-temperature alloy bar, which is implemented according to the following steps:
step 1, selecting a GH3039 high-temperature alloy ingot, smelting by a vacuum induction smelting and electroslag remelting two-link smelting process, and performing water quenching and cooling;
the GH3039 high-temperature alloy cast ingot comprises the following components in percentage by mass of less than or equal to 0.08 percent of C, Si: less than or equal to 0.80 percent, Mn: less than or equal to 0.40 percent, P: less than or equal to 0.02 percent, S: not more than 0.012, Cr: 19% -22%, Cu: less than or equal to 0.2 percent, Mo: 1.8% -2.3%, Ti: 0.35% -0.75%, Nb: 0.9% -1.3%, Al: 0.35% -0.75%, Fe: less than or equal to 3.0 percent, and the balance of Ni, wherein the sum of the mass percentages of the components is 100 percent.
Step 2, heating and preserving heat of the cast ingot treated in the step 1, upsetting, drawing and forging the cast ingot into an octagonal specification by 3-5 times of heating in a 45MN quick forging machine, wherein the drawing and forging is continuous remelting, the deformation of each heating time is 20-35%, and quenching and cooling are carried out to obtain a blank with an octagonal section;
the specific process of heating and insulating the cast ingot treated in the step 1 comprises the following steps: and (2) charging the ingot treated in the step (1) into a furnace, heating to 650 ℃, wherein the heat preservation coefficient is 0.6min/mm, then heating to 1080-1120 ℃ at the heating speed of 5-10 ℃/min, wherein the heat preservation coefficient is 0.6min/mm, the heat preservation coefficient of the hot material after returning to the furnace is 0.3min/mm, and quenching and cooling after forging.
Step 3, homogenizing and intermediate annealing the blank with the section of eight directions;
the specific process is as follows: heating the material blank with the section of eight directions to 800 ℃, keeping the temperature coefficient at 0.6min/mm, then heating to 1170-1190 ℃ at the heating speed of 5-10 ℃/min, keeping the temperature for 30-40 h, and cooling in the air after the temperature is kept.
Step 4, heating and insulating the annealed blank, and carrying out upsetting-drawing deformation for 5-7 times in a 45MN quick forging machine, wherein the deformation amount of each time is 30-40% to obtain an intermediate blank;
the specific process of heating and heat preservation of the annealed blank comprises the following steps: and heating the annealed blank to 800 ℃, wherein the heat preservation coefficient is 0.6min/mm, and then heating to 1050-1070 ℃ at a heating speed of 10-20 ℃/min, wherein the heat preservation coefficient is 0.6 min/mm.
Step 5, heating the intermediate blank, raising the temperature to 1000-minus one-year heat preservation 1030 ℃ at the heating speed of 10-20 ℃/min, keeping the heat preservation coefficient to 0.8min/mm, adopting an aluminum silicate heat preservation cotton soft sheath for the heated blank, preserving the heat for 60-90min at the temperature before the sheath, carrying out heat supplement to 1000-minus one-year heat preservation 1030 ℃, carrying out 2-3-fire drawing deformation in a 45MN quick forging machine, wherein the deformation amount of each fire is 35-45%, and cooling in the air;
and 6, heating the drawn material to 950-1000 ℃ at a heating speed of 10-20 ℃/min, keeping the heat preservation coefficient at 0.5min/mm, performing 1-time throwing circle forging on a 45MN rapid forging machine, adopting a spring anvil to throw the circle, ensuring that the forging deformation is less than or equal to 10 percent, and cooling in air to obtain the GH3039 high-temperature alloy bar.
A GH3039 high-temperature alloy bar is prepared according to a GH3039 high-temperature alloy bar preparation method, the grain size reaches more than 5 grade according to GB6395 rating, and carbides are dispersed in a strip shape.
The GH3039 high-temperature alloy bar can meet the requirements of a room-temperature tensile strength value of 800-900MPa, a room-temperature tensile elongation of 50-70%, a high-temperature tensile strength of 370-450MPa at 800 ℃ and a high-temperature tensile elongation of 90-120%.
Example 1
The cast ingot is smelted according to the set components, and the components of the cast ingot comprise, by weight, 0.046% of C, 0.038% of Si, 0.30% of Mn0.30%, 2.05% of Mo, 0.54% of Al, 0.68% of Ti, 0.65% of Fe, 0.0052% of Cu, 20.41% of Cr, 1.04% of Nb1.04%, 0.0002% of S, 0.0078% of P, and the balance of Ni and inevitable impurities.
The diameter of a GH3039 alloy ingot smelted by adopting the vacuum induction smelting and electroslag remelting process is 660mm, the ingot is blanked at 1100 ℃, the cogging and forging are carried out by 4 fire, and the deformation is set as follows: phi 660 × 1000 → phi 740 × 800 → eight directions 630 × 1040 → eight directions 750 × 730 → eight directions 620 × 1070, the deformation of the 1 st to 4 th fire single fire is 20%, 23%, 30% and 32% respectively, and the hot material is cooled by water quenching after the completion.
Keeping the temperature of the material blank with the section of eight directions at 1180 ℃ for 40h, annealing and homogenizing, and cooling in air after finishing;
the blank is subjected to 6-fire upsetting-drawing deformation after being subjected to heat preservation at 1070 ℃, and the setting is as follows: eighty percent 620 multiplied by 1070 → eighty percent 750 multiplied by 730 → eighty percent 600 multiplied by 1140 → eighty percent 730 multiplied by 770 → eighty percent 570 multiplied by 1260 → eighty percent 700 multiplied by 830 → eighty percent 550 multiplied by 1340, the single-fire deformation amounts are respectively 32 percent, 36 percent, 32 percent, 39 percent, 34 percent and 38 percent, and after the completion, the air cooling is carried out to obtain an intermediate blank;
the intermediate blank is subjected to drawing deformation for 2 times after heat preservation at 1030 ℃, and the setting is as follows: octagon 550 × 1340 → octagon 440 × 2090 → octagon 350 × 3310: the single-fire deformation amounts are respectively 36% and 37%, and air cooling is carried out after forging is completed;
the material after drawing out is kept warm at 1000 ℃ and then is subjected to 1-time fire rounding, and the setting is as follows: eight directions 350X 3310 → phi 350X 3500 with 5% deformation, and air cooling.
The grain size of the finished bar reaches grade 5 according to GB/T6394 rating, and the specific performance parameters are shown in Table 1.
Example 2
The cast ingot is smelted according to the set components, and the components of the cast ingot comprise, by weight, 0.046% of C, 0.038% of Si, 0.30% of Mn0.30%, 2.05% of Mo, 0.54% of Al, 0.68% of Ti, 0.65% of Fe, 0.0052% of Cu, 20.41% of Cr, 1.04% of Nb1.04%, 0.0002% of S, 0.0078% of P, and the balance of Ni and inevitable impurities.
The diameter of a GH3039 alloy ingot smelted by adopting the vacuum induction smelting and electroslag remelting process is 580mm, the ingot is cogging at 1100 ℃, the cogging and forging are carried out by 3 fire, and the deformation is set as follows: phi 580 × 1000 → phi 650 × 800 → eight square 555 × 1030 → eight square 670 × 710, the deformation of the 1 st to 3 rd fire single fire is 20%, 23% and 31%, respectively. After the completion of the hot material water quenching, the high power organization structure schematic diagram of the material after cogging is shown in figure 1.
Keeping the temperature of the blanks with the sections in the eight directions at 1190 ℃ for 40h, annealing and homogenizing, and cooling in air after finishing; fig. 2 shows a schematic view of the high magnification microstructure after annealing and homogenization heat treatment of the intermediate billet.
The blank was subjected to 5-pass upsetting-drawing deformation after heat preservation at 1060 ℃ and set as follows: the method comprises the following steps of (1) cooling in air after completion, wherein the deformation amount of a single fire is 33%, 36%, 39%, 37% and 39%, and obtaining an intermediate blank;
the intermediate blank is subjected to drawing deformation for 2 times of fire after heat preservation at 1020 ℃, and the setting is as follows: octagonal 530 × 1130 → octagonal 400 × 1980 → octagonal 300 × 3520: the single-fire deformation amounts are 43 percent and 44 percent respectively, and air cooling is carried out after the forging is finished;
the blank is subjected to heat preservation at 980 ℃ and then is subjected to round throwing for 1 fire, and the setting is as follows: octagonal 300 × 3520 → phi 300 × 3720, deformation 5%, air cooling after completion.
The grain size of the finished bar reaches 6.5 grade according to GB/T6394 rating, and the specific performance parameters are shown in Table 1.
The high-power structure of the finished bar after forging is schematically shown in fig. 3.
Example 3
The cast ingot is smelted according to the set components, and the components of the cast ingot comprise, by weight, 0.046% of C, 0.038% of Si, 0.30% of Mn0.30%, 2.05% of Mo, 0.54% of Al, 0.68% of Ti, 0.65% of Fe, 0.0052% of Cu, 20.41% of Cr, 1.04% of Nb1.04%, 0.0002% of S, 0.0078% of P, and the balance of Ni and inevitable impurities.
The diameter of a GH3039 alloy ingot smelted by adopting a vacuum induction smelting and electroslag remelting process is 500mm, the ingot is cogging at 1120 ℃, the cogging and forging are carried out by 3 fire, and the deformation is set as follows: phi 500 × 1000 → phi 615 × 800 → eight square 480 × 1030 → eight square 580 × 710, the 1 st to 5 th fire single fire deformation amounts are 20%, 23%, 31%, respectively. And (4) performing hot material water quenching after the completion to obtain a blank with the section of eight directions.
Keeping the temperature of the material blank with the cross section of the eight directions at 1170 ℃ for 34h, annealing and homogenizing, and cooling in air after finishing;
the blank is subjected to upsetting and drawing deformation for 7 times at 1050 ℃ after heat preservation, and the setting is as follows: eight directions 580 × 710 → eight directions 480 × 1035 → eight directions 600 × 660 → eight directions 500 × 950 → eight directions 640 × 580 → eight directions 530 × 845, the single heat deformation amounts are 32%, 36%, 31%, 39%, 31%, respectively, and after completion, air cooling is performed to obtain an intermediate billet;
the intermediate blank is subjected to drawing deformation for 3 times after heat preservation at 1010 ℃, and the setting is as follows: octagon 530 × 845 → octagon 420 × 1345 → octagon 330 × 2180 → octagon 250 × 3800: the single-fire deformation amounts are respectively 37%, 38% and 43%, and air cooling is carried out after forging is completed;
the blank is subjected to heat preservation at 980 ℃ and then is subjected to round throwing for 1 fire, and the setting is as follows: eighty 250X 3800 → 250X 4010 with 5% deformation, and air cooling.
The grain size of the finished bar reaches 7.5 grade according to GB/T6394 rating, and the specific performance parameters are shown in Table 1.
TABLE 1
By the mode, the GH3039 high-temperature alloy bar and the preparation method thereof belong to the technical field of nonferrous metal processing; comprises the following steps: (1) adopting a two-linkage smelting process of vacuum induction smelting and electroslag remelting to smelt a GH3039 high-temperature alloy ingot, wherein the two-linkage smelting process comprises the following chemical components in percentage by mass: c is less than or equal to 0.08 percent, Si: less than or equal to 0.80 percent, Mn: less than or equal to 0.40 percent, P: less than or equal to 0.02 percent, S: not more than 0.012, Cr: 19 to 22 percent, Cu: less than or equal to 0.2 percent, Mo: 1.8% -2.3%, Ti: 0.35-0.75%, Nb: 0.9% -1.3%, Al: 0.35-0.75%, Fe: less than or equal to 3.0 percent, and the balance of Ni and inevitable impurities; (2) cogging forging, upsetting and drawing for 3-5 times of heating and continuously returning to a furnace for forging, wherein the deformation of each heating time is 20-35%, and water cooling is carried out after forging; (3) homogenizing and intermediate annealing, and keeping the temperature of the cogging blank at 1170-1190 ℃ for 30-40 h; (4) 5-7 hot upsetting-drawing deformation, wherein the deformation amount of each hot upsetting-drawing deformation is 30% -40%; (5) 2-3 times of fire drawing, wherein the deformation of each fire is 35% -45%; (6) the spring anvil is thrown to be round, the deformation is less than or equal to 10 percent, and the GH3039 alloy bar is obtained. The GH3039 alloy bar is prepared by adopting the free forging technology, the process is simple and easy to implement, and the high strength and the high toughness of the GH3039 high-temperature alloy bar are realized.
Claims (10)
1. A preparation method of a GH3039 high-temperature alloy bar is characterized by comprising the following steps:
step 1, selecting a GH3039 high-temperature alloy ingot, smelting by a vacuum induction smelting and electroslag remelting two-link smelting process, and performing water quenching and cooling;
step 2, heating and preserving heat of the cast ingot treated in the step 1, carrying out upsetting-drawing cogging forging for 3-5 times to obtain an octagonal specification, carrying out cogging forging to obtain a continuous remelting furnace, wherein the deformation of each heating time is 20-35%, quenching and cooling to obtain a blank with an octagonal section;
step 3, homogenizing and intermediate annealing the blank with the section of eight directions;
step 4, heating and insulating the annealed blank, and carrying out upsetting-drawing deformation for 5-7 times with deformation amount of 30-40% per time to obtain an intermediate blank;
step 5, heating and insulating the intermediate blank, carrying out drawing deformation for 2-3 times of fire, wherein the deformation amount of each time of fire is 35-45%, and cooling in air;
and 6, heating and insulating the material drawn out in the step 5, performing round forging for 1 fire time, wherein the forging deformation is less than or equal to 10%, and cooling in air to obtain the GH3039 high-temperature alloy bar.
2. The method for preparing the GH3039 high-temperature alloy bar material of claim 1, wherein the GH3039 high-temperature alloy ingot casting in the step 1 comprises the following components in percentage by mass equal to or less than 0.08%, Si: less than or equal to 0.80 percent, Mn: less than or equal to 0.40 percent, P: less than or equal to 0.02 percent, S: not more than 0.012, Cr: 19% -22%, Cu: less than or equal to 0.2 percent, Mo: 1.8% -2.3%, Ti: 0.35% -0.75%, Nb: 0.9% -1.3%, Al: 0.35% -0.75%, Fe: less than or equal to 3.0 percent, and the balance of Ni, wherein the sum of the mass percentages of the components is 100 percent.
3. The method for preparing the GH3039 superalloy bar according to claim 1, wherein the specific process of heating and insulating the ingot treated in the step 1 in the step 2 is as follows: and (2) charging the ingot treated in the step (1) into a furnace, heating to 650 ℃, wherein the heat preservation coefficient is 0.6min/mm, then heating to 1080-1120 ℃ at the heating speed of 5-10 ℃/min, wherein the heat preservation coefficient is 0.6min/mm, the heat preservation coefficient of the hot material after returning to the furnace is 0.3min/mm, and quenching and cooling after forging.
4. The method for preparing the GH3039 superalloy bar according to claim 1, wherein the specific process in the step 3 is as follows: heating the material blank with the section of eight directions to 800 ℃, keeping the temperature coefficient at 0.6min/mm, then heating to 1170-1190 ℃ at the heating speed of 5-10 ℃/min, keeping the temperature for 30-40 h, and cooling in the air after the temperature is kept.
5. The method for preparing the GH3039 superalloy bar according to claim 1, wherein the specific heating and heat preservation process of the annealed blank in the step 4 is as follows: and heating the annealed blank to 800 ℃, wherein the heat preservation coefficient is 0.6min/mm, and then heating to 1050-1070 ℃ at a heating speed of 10-20 ℃/min, wherein the heat preservation coefficient is 0.6 min/mm.
6. The method for preparing the GH3039 superalloy bar according to claim 1, wherein the heating and heat preservation of the blank after upsetting and drawing in the step 5 are specifically as follows: heating the blank to 1000-1030 ℃ at a heating speed of 10-20 ℃/min, wherein the heat preservation coefficient is 0.8min/mm, soft covering the heated blank by aluminum silicate heat preservation cotton, preserving the heat for 60-90min at the temperature before covering, and performing heat supplementation to 1000-1030 ℃ by a heating furnace.
7. The method for preparing the GH3039 superalloy bar according to claim 1, wherein the specific process of heating and insulating the material after the drawing in the step 6 is as follows: heating the material after drawing at a heating speed of 10-20 ℃/min to 950 ℃ and 1000 ℃, wherein the heat preservation coefficient is 0.5 min/mm.
8. The method for preparing the GH3039 superalloy bar according to claim 1, wherein the 1-time forging is spring anvil rounding.
9. A GH3039 superalloy rod, characterized in that it is produced according to the method of any of claims 1 to 8, the grain size reaches above grade 5 according to GB6395, and the carbides are dispersed in the form of strips.
10. The GH3039 superalloy bar of claim 9, wherein the GH3039 superalloy bar is capable of meeting the room temperature tensile strength value of 800-900MPa, the room temperature tensile elongation of 50-70%, the 800 ℃ high temperature tensile strength of 370-450MPa, and the 800 ℃ high temperature tensile elongation of 90-120%.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496161A (en) * | 2020-04-27 | 2020-08-07 | 西安聚能高温合金材料科技有限公司 | Preparation method of high-temperature alloy bar |
| CN112708788A (en) * | 2020-11-18 | 2021-04-27 | 北京钢研高纳科技股份有限公司 | Method for improving plasticity of K403 alloy, die material and product |
| CN113118354A (en) * | 2021-04-19 | 2021-07-16 | 中航上大高温合金材料股份有限公司 | Forging method of GH4049 alloy bar |
| CN113231589A (en) * | 2021-06-15 | 2021-08-10 | 西部超导材料科技股份有限公司 | Forging method for improving texture uniformity of nickel-based high-temperature alloy difficult to deform |
| CN113684387A (en) * | 2021-08-25 | 2021-11-23 | 中航上大高温合金材料股份有限公司 | GH6159 alloy ingot for fastener and preparation method thereof |
| CN113913631A (en) * | 2021-10-13 | 2022-01-11 | 沈阳科金特种材料有限公司 | Method for smelting return material of GH3039 material for combustion engine |
| CN115287477A (en) * | 2022-08-04 | 2022-11-04 | 无锡凯斯特铸业有限公司 | GH3039 high-nickel alloy part forming method |
| CN115821181A (en) * | 2022-12-21 | 2023-03-21 | 河钢股份有限公司 | Thermal mechanical treatment method of nickel-chromium-cobalt alloy |
| CN116497248A (en) * | 2023-04-28 | 2023-07-28 | 江苏隆达超合金航材有限公司 | Preparation method of GH3039 alloy electroslag ingot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103695826A (en) * | 2013-12-20 | 2014-04-02 | 钢铁研究总院 | Fine-grain forging method for large-size GH690 nickel-based alloy bar billet |
| CN105331912A (en) * | 2015-11-27 | 2016-02-17 | 西部超导材料科技股份有限公司 | GH4169 high-temperature alloy bar and manufacturing method thereof |
| CN107937739A (en) * | 2017-11-14 | 2018-04-20 | 朱森 | A kind of preparation method of Ni Fe based high-temperature alloy materials |
| CN110373620A (en) * | 2019-09-03 | 2019-10-25 | 钢铁研究总院 | A method of improving the Ni-based precipitation strength type high temperature alloy hot-working character of high γ ' phase volume fraction |
| CN110449541A (en) * | 2019-07-31 | 2019-11-15 | 西部超导材料科技股份有限公司 | A kind of free forging rod billet of GH4169 high temperature alloy and preparation method thereof |
-
2019
- 2019-12-23 CN CN201911338516.6A patent/CN111020298B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103695826A (en) * | 2013-12-20 | 2014-04-02 | 钢铁研究总院 | Fine-grain forging method for large-size GH690 nickel-based alloy bar billet |
| CN105331912A (en) * | 2015-11-27 | 2016-02-17 | 西部超导材料科技股份有限公司 | GH4169 high-temperature alloy bar and manufacturing method thereof |
| CN107937739A (en) * | 2017-11-14 | 2018-04-20 | 朱森 | A kind of preparation method of Ni Fe based high-temperature alloy materials |
| CN110449541A (en) * | 2019-07-31 | 2019-11-15 | 西部超导材料科技股份有限公司 | A kind of free forging rod billet of GH4169 high temperature alloy and preparation method thereof |
| CN110373620A (en) * | 2019-09-03 | 2019-10-25 | 钢铁研究总院 | A method of improving the Ni-based precipitation strength type high temperature alloy hot-working character of high γ ' phase volume fraction |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496161A (en) * | 2020-04-27 | 2020-08-07 | 西安聚能高温合金材料科技有限公司 | Preparation method of high-temperature alloy bar |
| CN112708788A (en) * | 2020-11-18 | 2021-04-27 | 北京钢研高纳科技股份有限公司 | Method for improving plasticity of K403 alloy, die material and product |
| CN113118354A (en) * | 2021-04-19 | 2021-07-16 | 中航上大高温合金材料股份有限公司 | Forging method of GH4049 alloy bar |
| CN113231589A (en) * | 2021-06-15 | 2021-08-10 | 西部超导材料科技股份有限公司 | Forging method for improving texture uniformity of nickel-based high-temperature alloy difficult to deform |
| CN113684387A (en) * | 2021-08-25 | 2021-11-23 | 中航上大高温合金材料股份有限公司 | GH6159 alloy ingot for fastener and preparation method thereof |
| CN113684387B (en) * | 2021-08-25 | 2022-11-01 | 中航上大高温合金材料股份有限公司 | GH6159 alloy ingot for fastener and preparation method thereof |
| CN113913631A (en) * | 2021-10-13 | 2022-01-11 | 沈阳科金特种材料有限公司 | Method for smelting return material of GH3039 material for combustion engine |
| CN115287477A (en) * | 2022-08-04 | 2022-11-04 | 无锡凯斯特铸业有限公司 | GH3039 high-nickel alloy part forming method |
| CN115821181A (en) * | 2022-12-21 | 2023-03-21 | 河钢股份有限公司 | Thermal mechanical treatment method of nickel-chromium-cobalt alloy |
| CN116497248A (en) * | 2023-04-28 | 2023-07-28 | 江苏隆达超合金航材有限公司 | Preparation method of GH3039 alloy electroslag ingot |
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