CN102071383B - Method for controlling re-crystallization of directionally solidified nickel base high-temperature alloy by using coating method - Google Patents
Method for controlling re-crystallization of directionally solidified nickel base high-temperature alloy by using coating method Download PDFInfo
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- CN102071383B CN102071383B CN200910220145A CN200910220145A CN102071383B CN 102071383 B CN102071383 B CN 102071383B CN 200910220145 A CN200910220145 A CN 200910220145A CN 200910220145 A CN200910220145 A CN 200910220145A CN 102071383 B CN102071383 B CN 102071383B
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- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract description 26
- 229910052759 nickel Inorganic materials 0.000 title abstract description 11
- 238000001953 recrystallisation Methods 0.000 title abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 49
- 238000000137 annealing Methods 0.000 claims abstract description 12
- 239000012086 standard solution Substances 0.000 claims abstract description 7
- 238000007711 solidification Methods 0.000 claims description 25
- 230000008023 solidification Effects 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 8
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 4
- 239000011247 coating layer Substances 0.000 abstract 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- 239000013078 crystal Substances 0.000 description 13
- 238000000151 deposition Methods 0.000 description 12
- 239000000243 solution Substances 0.000 description 7
- 229910000601 superalloy Inorganic materials 0.000 description 6
- 230000008021 deposition Effects 0.000 description 5
- 238000007733 ion plating Methods 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000005422 blasting Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000005488 sandblasting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052774 Proactinium Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
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- 239000002245 particle Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
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Abstract
The invention provides a method for controlling re-crystallization of a directionally solidified nickel base high-temperature alloy by using a coating method, which is characterized by comprising the following steps of: coating a coating layer on the surface of a deformed directionally solidified nickel base high-temperature alloy; performing de-stressing annealing on a coating layer sample; and performing standard solution treatment on the directionally solidified nickel base high-temperature alloy, wherein the coating layer is Zr/NiCoCrAlYSiB, CrC/Cr2O3/NiCoCrAlYSiB, Cr2O3/NiCoCrAlYSiB, NiCoCrAlYSiB, C/NiCoCrAlYSiB or Zr/ZrO2/NiCoCrAlYSiB. The method can significantly reduce the re-crystallization of the deformed nickel base high-temperature alloy.
Description
Technical field
The present invention relates to the control techniques of recrystallize, a kind of technology of utilizing coating coating control directional freeze column crystal and monocrystal nickel-base high-temperature alloy recrystallize is provided especially.
Background technology
Internal combustion turbine, blade of aviation engine all are under comparatively high temps, to use, and blade mainly receives centrifugal action, and at high temperature, the intensity of crystal boundary is not as intracrystalline intensity, and laterally crystal boundary has just become the weak link of blade.For this reason, people have been developed directional columnargrain even single crystal blade and have been eliminated horizontal crystal boundary or whole crystal boundaries.Compare with traditional polycrystalline blade, these blades have the warm ability of holding of better vertical mechanical property and Geng Gao.
But blade is in the directional freeze process, because the difference of metal and ceramic-mould, core thermal expansivity, foundry goods can produce distortion.Also might produce distortion in shaping subsequently, sandblast, soldering even the military service process.Like this, vanes pyroprocessing (high temperature in solution treatment or the military service process) will produce recrystallize.Recrystallize produces horizontal crystal boundary, so formed the weak link of blade again, has a strong impact on the performance of blade.
At present; Recrystallize for the generation of directional freeze blade; The measure of taking mainly is that the distortion (as reduce mechanical workout, optimization design casting mold, core etc. as far as possible) of control blade prevents blade to produce recrystallize, perhaps sets up blade recrystallize standard; The strict detection, the blade that surpasses a certain degree recrystallize is scrapped at once.
Because blade inevitably passes through some operation (like sandblast etc.) in process of production, the distortion that these operations produced just can't be avoided.Therefore the recrystallize that brings can reduce casting qualified rate significantly, increases cost, has a strong impact on production efficiency.
For the control of recrystallize, some relevant reports are arranged abroad.European patent (patent No.: EP1038982A1) adopt the method for gas (mainly being the mixed gas of CO and argon gas) carburizing that carbon is diffused into and form carbide in the alloy substrate, utilize carbide particle hinder crystal boundary migration be used for control recrystallize and recrystallize localized.This method equipment is complicated, operate more loaded down with trivial detailsly, controls recrystallize with the method for control growing, and is mainly used in single crystal alloy.(patent No.: 5551999) adopt the regressive repeatedly method of lesser temps to control recrystallize, this method can not suppress recrystallize surface forming core and oxidation to USP.The method that adopts the coating the inside to add the grain-boundary strengthening element is in addition strengthened the recrystallize crystal boundary, and (patent No.: EP 1036850A1), this method is primarily aimed at monocrystal nickel-base high-temperature alloy to avoid the crackle generation.What this method was mainly considered is after recrystallize produces, and how to manage to eliminate the disadvantageous effect of recrystallize, promptly strengthens the recrystallize crystal boundary, rather than manages to suppress the generation of recrystallize.What is more, and the method that adopts chemical corrosion is directly with the recrystallized layer erosion removal (patent No.: 5413648).Though it is this method can be removed recrystallized layer, obviously inapplicable for thin-walled monocrystalline or directional columnargrain nickel base superalloy parts.
Summary of the invention
The purpose of this invention is to provide a kind of method of controlling the directional solidification nickel-base high-temperature alloy recrystallize; Specifically be a kind of method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize, the recrystallize that this method can make nickel base superalloy distortion back produce significantly reduces.
The present invention specifically provides a kind of method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize; It is characterized in that: producing the directional solidification nickel-base high-temperature alloy surface-coated coating of distortion; Coating sample carries out the standard solution treatment of directional solidification nickel-base high-temperature alloy through after the stress relief annealing; Wherein, coating is Zr/NiCoCrAlYSiB, CrC/Cr
2O
3/ NiCoCrAlYSiB, Cr
2O
3/ NiCoCrAlYSiB, NiCoCrAlYSiB, C/NiCoCrAlYSiB or Zr/ZrO
2/ NiCoCrAlYSiB.
A kind of method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize provided by the invention, it is characterized in that: said coating is preferably C/NiCoCrAlYSiB, Zr/NiCoCrAlYSiB.Thereby the C element that contains in these coatings possibly form carbide particle hinders crystal boundary migration inhibition recrystallize, and the Zr atom gets into the purpose that coating inside possibly hinder Elements Diffusion and reach the inhibition recrystallize.
A kind of method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize provided by the invention, it is characterized in that: coating process is arc ion plating, magnetron sputtering, plasma spraying.
A kind of method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize provided by the invention, it is characterized in that: coating is handled through stress relief annealing, and the processing parameter of its stress relief annealing is: 600～1100 ℃/1～12h.
A kind of method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize provided by the invention; It is characterized in that: the processing parameter of coating stress relief annealing is: 900 ℃/10h, thereby anneal under this temperature can avoid undergoing phase transition in the alloy substrate matrix is degenerated.
The present invention coats through coating and coating ingredient control recrystallize.Different with adding grain-boundary strengthening element reinforcement recrystallize crystal boundary in the coating is that coating ingredient of the present invention can be through hindering the development that is used for suppressing recrystallize of Elements Diffusion; In addition, the prerequisite that adds the grain-boundary strengthening element in the coating is to recognize that the existence of recrystallize, manage to eliminate the disadvantageous effect of recrystallize then, and the purpose of applying coating of the present invention is the development of control recrystallize.
Description of drawings
Fig. 1 for water sandblast distortion directional solidification nickel-base high-temperature alloy after, do not have coating and the direct recrystallized structure that produced of solution treatment.
Fig. 2 for water sandblast distortion directional solidification nickel-base high-temperature alloy after, behind the coating Zr/NiCoCrAlYSiB, again through recrystallized structure that solution treatment produced.
Embodiment
Embodiment 1DZ125L directional solidificating alloy 1# coating control recrystallize.
Apparatus for directional solidification is prepared DZ125L directional solidification nickel-base nickel base superalloy plate, with the square that cuts 2 * 12 * 12mm on the line cutting slave plate.With the face polishing of 12 * 12 (the directional columnargrain directions of growth), carry out sandblasting with sandblast apparatus.The sandblast parameter is following: blasting pressure is 0.3MPa, and the sandblast time is 1min, and sand grains is SiO
2Glass sphere.
Next, use the arc ion plating apparatus applying coating.In the coating procedure, vacuum tightness is 10
-2Pa, at first deposition one deck Zr on sample deposits layer of Ni CoCrAlYSiB again.The deposition Zr layer time is 100min, and the NiCoCrAlYSiB layer time is 2h.After having deposited, coating sample is through 800 ℃/10h stress relief annealing.And then these samples are carried out the standard solution treatment, behind the air cooling sample cut and observe the recrystallized structure that produces.The sample average recrystallize degree of depth through after the above-mentioned processing is 16 microns, and is as shown in Figure 2; And directly the sample recrystallize degree of depth of solution treatment is 30 microns, and is as shown in Figure 1.
Embodiment 2DZ125L directional solidificating alloy 2# coating control recrystallize.
Apparatus for directional solidification is prepared DZ125L directional solidification nickel-base nickel base superalloy plate, with the square that cuts 2 * 12 * 12mm on the line cutting slave plate.With the face polishing of 12 * 12 (the directional columnargrain directions of growth), carry out sandblasting with sandblast apparatus.The sandblast parameter is following: blasting pressure is 0.3MPa, and the sandblast time is 1min, and sand grains is SiO
2Glass sphere.
Next, use the arc ion plating apparatus applying coating.In the coating procedure, vacuum tightness is 10
-2Pa at first deposits one deck graphite on sample, depositing time is 1h, and then deposition layer of Ni CoCrAlYSiB, and depositing time is 8h.After having deposited, coating sample is carried out 800 ℃/10h stress relief annealing handle.And then these samples are carried out the standard solution treatment, behind the air cooling sample cut and observe the recrystallized structure that produces.The sample average recrystallize degree of depth through after the above-mentioned processing is 15 microns, and directly the sample recrystallize degree of depth of solution treatment is 30 microns.
Embodiment 3DZ125L directional solidificating alloy 3# coating control recrystallize.
Apparatus for directional solidification is prepared DZ125L directional solidification nickel-base nickel base superalloy plate, with the square that cuts 2 * 12 * 12mm on the line cutting slave plate.With the face polishing of 12 * 12 (the directional columnargrain directions of growth), carry out sandblasting with sandblast apparatus.The sandblast parameter is following: blasting pressure is 0.3MPa, and the sandblast time is 1min, and sand grains is SiO
2Glass sphere.
Next, use the arc ion plating apparatus applying coating.In the coating procedure, vacuum tightness is 10
-2Pa at first deposits one deck CrC on sample, depositing time is 1h, and then deposition one deck Cr
2O
3, depositing time is 30min, deposits layer of Ni CoCrAlYSiB at last, depositing time is 8h.After having deposited, coating sample is carried out 800 ℃/10h stress relief annealing handle.And then these samples are carried out the standard solution treatment, behind the air cooling sample cut and observe the recrystallized structure that produces.The sample average recrystallize degree of depth through after the above-mentioned processing is 19 microns, and directly the sample recrystallize degree of depth of solution treatment is 30 microns.
Embodiment 4DZ125L directional solidificating alloy 3# coating control recrystallize.
Apparatus for directional solidification is prepared DZ125L directional solidification nickel-base nickel base superalloy plate, with the square that cuts 2 * 12 * 12mm on the line cutting slave plate.With the face polishing of 12 * 12 (the directional columnargrain directions of growth), carry out sandblasting with sandblast apparatus.The sandblast parameter is following: blasting pressure is 0.3MPa, and the sandblast time is 1min, and sand grains is SiO
2Glass sphere.
Next, use the arc ion plating apparatus applying coating.In the coating procedure, vacuum tightness is 10
-2Pa, at first deposition one deck Cr on sample
2O
3, depositing time is 30min, deposits layer of Ni CoCrAlYSiB then, depositing time is 8h.After having deposited, coating sample is carried out 800 ℃/10h stress relief annealing handle.And then these samples are carried out the standard solution treatment, behind the air cooling sample cut and observe the recrystallized structure that produces.The sample average recrystallize degree of depth through after the above-mentioned processing is 27 microns, and directly the sample recrystallize degree of depth of solution treatment is 30 microns.Cr is described
2O
3/ NiCoCrAlYSiB coating is relatively poor to the control effect of DZ125L alloy recrystallization.
Claims (3)
1. method of utilizing coating control directional solidification nickel-base high-temperature alloy recrystallize; It is characterized in that: producing the directional solidification nickel-base high-temperature alloy surface-coated coating of distortion; Coating sample carries out the standard solution treatment of directional solidification nickel-base high-temperature alloy through after the stress relief annealing; Wherein, coating is Zr/NiCoCrAlYSiB, CrC/Cr
2O
3/ NiCoCrAlYSiB, Cr
2O
3/ NiCoCrAlYSiB, NiCoCrAlYSiB, C/NiCoCrAlYSiB.
2. according to the method for the said control directional solidification nickel-base high-temperature alloy of claim 1 recrystallize, it is characterized in that: the processing parameter of coating stress relief annealing is: 600～1100 ℃/1 ~ 12h.
3. according to the method for the said control directional solidification nickel-base high-temperature alloy of claim 2 recrystallize, it is characterized in that: the processing parameter of coating stress relief annealing is: 900 ℃/10h.
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| CN102899696B (en) * | 2011-07-28 | 2016-01-20 | 中国科学院金属研究所 | A kind of coating controls the method for directional solidification nickel-base high-temperature alloy recrystallize |
| CN108097909B (en) * | 2016-11-25 | 2020-06-16 | 中国科学院金属研究所 | Process method for eliminating recrystallization of single crystal high-temperature alloy casting |
| CN107119325B (en) * | 2017-06-26 | 2019-03-12 | 中国科学院金属研究所 | A method of eliminating laser 3D printing single crystal super alloy recrystallization tendency |
| CN107876358B (en) * | 2017-09-28 | 2021-02-02 | 中国科学院金属研究所 | Protective coating for nickel-based metal non-diffusion-plated surface and protective method |
| CN110079752B (en) * | 2019-05-07 | 2020-07-10 | 西安交通大学 | Heat treatment method for inhibiting recrystallization of single crystal high-temperature alloy for 3D printing or welding |
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| Title |
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| 撒世勇等.涂层对定向凝固高温合金表面再结晶的影响研究.《表面技术》.2009,第38卷(第1期),17-19. * |
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Effective date of registration: 20140103 Address after: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 8 8-3 Patentee after: Shenyang Zhongke three new materials Limited by Share Ltd Address before: 110015 Shenyang, Liaoning Province Cultural Road, No. 72, Shenhe Patentee before: Institute of metal research, Chinese Academy of Sciences |