CN111020500A - FeCrAlY coating resistant to high temperature liquid lead or lead bismuth corrosion and preparation method thereof - Google Patents

FeCrAlY coating resistant to high temperature liquid lead or lead bismuth corrosion and preparation method thereof Download PDF

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CN111020500A
CN111020500A CN201911092583.4A CN201911092583A CN111020500A CN 111020500 A CN111020500 A CN 111020500A CN 201911092583 A CN201911092583 A CN 201911092583A CN 111020500 A CN111020500 A CN 111020500A
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magnetron sputtering
structural steel
lead
target material
fecraly
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董伟伟
王庆胜
王爱国
李海斌
丁益
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Anhui Jianzhu University
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Anhui Jianzhu University
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/35Sputtering by application of a magnetic field, e.g. magnetron sputtering
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • C23C14/16Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • C23C14/165Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon by cathodic sputtering
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/3485Sputtering using pulsed power to the target
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/58After-treatment
    • C23C14/5806Thermal treatment

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  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
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  • Mechanical Engineering (AREA)
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Abstract

The invention provides a FeCrAlY coating resistant to high temperature liquid lead or lead bismuth corrosion and a preparation method thereof. The preparation method comprises the following steps: polishing or sand blasting the surface of the structural steel, then ultrasonically cleaning and drying for later use; placing the cleaned structural steel in a magnetron sputtering cavity, fixing a metal simple substance target material or an alloy target material, starting a vacuum pump until the vacuum degree in the magnetron sputtering cavity reaches 10‑4~10‑5Starting sputtering after Pa, adjusting the flow of argon entering a magnetron sputtering cavity, enabling the air inlet pressure of the argon to be 3-10 Pa, controlling magnetron sputtering current to be 1-25A, pulse bias to be-50-200V, and magnetron sputtering time to be 2-10 hours; after sputtering is finished, annealing the structural steel with the FeCrAlY coating sputtered on the surface for 2-5 hours in situ or ex situ in nitrogen atmosphere at the annealing temperatureThe temperature is 600-850 ℃. The preparation method has the advantages of simple process, low cost and convenient operation.

Description

FeCrAlY coating resistant to high temperature liquid lead or lead bismuth corrosion and preparation method thereof
Technical Field
The invention belongs to the technical field of structural steel surface corrosion protection in a high-temperature liquid lead/lead bismuth environment, and particularly relates to a FeCrAlY coating resistant to high-temperature liquid lead or lead bismuth corrosion and a preparation method thereof.
Background
Nuclear power plants operating in the world are basically thermal neutron reactors, consuming fissile235And U, the utilization rate of uranium resources is extremely low. Fast neutron reactor (fast reactor for short) is used for initiating fission reaction by fast neutron and can not use thermal neutron reactor238U converted to fissile239Pu is utilized, so that the utilization rate of uranium resources can be improved to 100% theoretically and is 140 times higher than that of pressurized water reactors in thermal reactors, and therefore more nuclear power energy can be provided for human society by utilizing limited uranium resources.
In fast reactor, He gas, liquid metal Na, liquid lead-bismuth alloy (Pb-Bi) or Pb as cooling agent can be used to obtain fast neutron spectrum. Compared with other coolants, the lead-bismuth alloy or lead-cooled reactor has many advantages: (1) the atomic mass of Pb and Bi is far greater than that of Na, the moderated cross section of the neutron is small, the volume ratio of coolant/fuel can be increased, and the power density of the reactor core is reduced; the neutron capture cross section is small and the change is smooth; (2) the boiling point is high (about 1670 ℃), and cavitation is not easy to generate. If advanced heat-resistant materials are adopted, the outlet temperature of the coolant can be increased to 800 ℃, and the hydrogen production and other wider applications can be realized; (3) chemically inert, without the risk of sodium-water like reaction in contact with water; (4) the reactor has excellent heat transfer performance, and can quickly transfer the nuclear reaction heat in the reactor. The reactor taking liquid lead or lead bismuth as the coolant is the most promising reactor type in the modern nuclear energy system, and is also the fourth generation advanced nuclear energy system which is expected to be the first to realize industrial demonstration and commercial application.
In a liquid lead (Pb) or lead bismuth (Pb-Bi) cooled reactor, the reactor structural materials (such as 316L, T91, EP823, SIMP, etc.) will be in direct contact with high temperature liquid lead or lead bismuth, and the high temperature flowing liquid lead or lead bismuth can cause serious corrosion damage to the reactor structural materials through a series of complicated chemical and physical processes, thus seriously endangering the safety and service life of the reactor. In a certain temperature and oxygen content range, oxygen in the liquid lead or the lead bismuth only reacts with certain elements on the surface of the material to form a thin and compact oxide protective film, so that further development of corrosion can be weakened and inhibited to a certain extent. However, in the case of liquid lead or lead bismuth at higher temperatures, the structural material is heavily oxidized and does not inhibit the occurrence of dissolution corrosion. In addition to developing suitable structural steels, the use of coating materials is also an important solution to the problem of corrosion of critical components.
At present, liquid lead or lead bismuth corrosion-resistant coating materials mainly have three types: a refractory metal coating; ceramic coatings such as oxides and nitrides; an aluminide alloy coating. Al has the strongest affinity with oxygen and can be preferentially combined with oxygen in liquid lead or lead bismuth to react to generate stable oxide, and Al is selectively oxidized on the surface to generate an oxide protective film through diffusion. The oxide grows slowly, and meanwhile, the oxide self-heals under the conditions of mechanical damage and stress cracking, so that the effectiveness and reliability of the oxide in a long-term service process are ensured. Among the aluminide alloy coatings, the most prominent corrosion resistance performance is that of FeCrAlY coatings. The FeCrAlY coating prepared on the surface of 316Ti steel by Weisenburger et al adopts the processes of low-pressure plasma spraying and high-energy pulse electron beam remelting, and after a 600 ℃ flowing liquid lead bismuth corrosion experiment for 1.6 ten thousand hours, the coating has no visible corrosion and oxidation. The FeCrAlY coating prepared on the surface of the T91 steel by the same process has no damage marks on the surface of the coating after the synergistic effect of 900-hour flowing liquid lead bismuth corrosion, stress load and proton irradiation.
Low pressure plasma spraying can produce FeCrAlY coatings, but the surface roughness of the coating depends on the size of the sprayed powder particles, the coarse particle size resulting in a rough surface. The porosity of the coating obtained by spraying is large and generally closed, and the holes in the coating need to be reduced by processes such as high-energy pulsed electron beam remelting and the like so as to improve the corrosion resistance of the coating. In addition, the combination of low-pressure plasma spraying and pulsed electron beam remelting process can cause great changes in the final components of the coating and the components of the sprayed powder, which is not favorable for coating quality control. And the equipment for low-pressure plasma spraying and high-energy pulse electron beam remelting is expensive, the process is relatively complex and the cost is higher, and no mechanism for simultaneously meeting the use requirements exists in China.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method of a FeCrAlY coating resistant to high temperature liquid lead or lead bismuth corrosion. The preparation method has simple process and lower cost, and is very suitable for industrial application. In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a preparation method of FeCrAlY coating with high temperature resistance and liquid lead or lead bismuth corrosion resistance comprises the following steps:
step 1, polishing or sand blasting the surface of structural steel, ultrasonically cleaning, taking out and drying for later use;
step 2, preparing an FeCrAlY coating by using a non-equilibrium magnetron sputtering method: placing the cleaned structural steel in a magnetron sputtering cavity, fixing a metal simple substance target material or an alloy target material, starting a vacuum pump until the vacuum degree in the magnetron sputtering cavity reaches 10-4~10-5Starting sputtering after Pa, adjusting the flow of argon entering a magnetron sputtering cavity, enabling the air inlet pressure of the argon to be 3-10 Pa, controlling magnetron sputtering current to be 1-25A, pulse bias to be-50-200V, and magnetron sputtering time to be 2-10 hours;
and 3, after sputtering is finished, annealing the structural steel with the FeCrAlY coating sputtered on the surface for 2-5 hours in situ or ex situ in a nitrogen atmosphere at the annealing temperature of 600-850 ℃.
Further preferred embodiments: the structural steel material in the step 1 is any one of austenitic stainless steel, ferrite/martensite steel and low activation ferrite/martensite steel.
Further preferred embodiments: the structural steel material in the step 1 has any one of the trademarks of 316L, 316Ti, T91, SIMP and EP 823.
Further preferred embodiments: and (3) after the surface of the structural steel in the step (1) is polished or sandblasted, putting the structural steel into ethanol and acetone solution, and respectively carrying out ultrasonic cleaning for 5-10 min.
Further preferred embodiments: the metal single-substance target material in the step 2 comprises an iron target material, a chromium target material, an aluminum target material and an yttrium target material.
Further preferred embodiments: the alloy target material in the step 2 comprises 9-15 wt% of Cr, 4-12 wt% of Al, 0.3-0.5 wt% of Y and the balance of Fe.
The invention also aims to provide a FeCrAlY coating which is high in temperature resistance and liquid lead/lead bismuth corrosion resistance and is prepared by the preparation method.
The invention has the beneficial effects that:
(1) the components of the FeCrAlY coating obtained by the preparation method are easy to adjust, and when the metal elemental target is adopted, FeCrAlY coatings with different components can be obtained by adjusting the sputtering power of the metal elemental target with different components; when the alloy target is used for magnetron sputtering, an FeCrAlY coating which has very close components to the alloy target can be obtained; the content of each component of the FeCrAlY coating prepared by the invention meets the requirement. The FeCrAlY coating obtained by magnetron sputtering is very compact, has low surface roughness, is well combined with the surface of structural steel, has good compactness, and does not need subsequent processes such as remelting treatment and the like. The preparation method has the advantages of simple process, low cost and convenient operation.
(2) Step 1 of the invention is to obtain a structural steel with a clean surface, which is beneficial to obtaining a FeCrAlY coating on the surface of the structural steel subsequently; the selection of the corresponding process parameters in the step 2 is a key technology for obtaining a compact FeCrAlY coating, namely, a non-equilibrium magnetron sputtering method is selected, so that the compact FeCrAlY coating which is well combined with the surface of structural steel can be obtained at a low temperature; and step 3, the crystallinity of the FeCrAlY coating can be improved, the internal stress is reduced, and the binding force between the FeCrAlY coating and structural steel is enhanced. The operations in the steps 1, 2 and 3 and the selection of corresponding process parameters (such as argon flow, magnetron sputtering current, pulse bias, magnetron sputtering time, annealing time and annealing temperature) are very important and indispensable for obtaining the FeCrAlY coating with high quality and corrosion resistance in high-temperature liquid lead/lead bismuth.
Drawings
FIG. 1 is a scanning electron microscope photograph of the surface of FeCrAlY coating obtained in example 1.
FIG. 2 is a scanning electron microscope photograph of a cross section of the FeCrAlY coating obtained in example 1.
FIG. 3 shows the X-ray spectra results of various positions of FeCrAlY coating obtained in example 1.
Detailed Description
The technical scheme of the invention is more specifically explained by combining the following embodiments:
example one
Step 1, processing a structural steel (austenitic stainless steel) base material into a sample with a proper size. Before the experiment, the surface of the structural steel is polished by abrasive paper, then is put into a solution of ethanol and acetone for ultrasonic cleaning for 8 minutes respectively, and then is taken out and dried for later use.
Step 2, preparing an FeCrAlY coating by using a non-equilibrium magnetron sputtering method: fixing the cleaned structural steel on a sample holder, putting the sample holder into a magnetron sputtering cavity, putting an alloy target (the components are Cr 15 wt%, Al 11 wt%, Y0.5 wt% and the balance being iron) into a target holder, fixing, starting a vacuum pump, and waiting for the vacuum in the magnetron sputtering cavity to reach 3 x 10-5Starting sputtering after Pa, adjusting the flow of argon to make the inlet pressure 3Pa, the magnetron sputtering current 20A, the pulse bias voltage-60V, and magnetron sputtering for 3 hours.
And step 3: after sputtering is finished, in-situ annealing is carried out on the structural steel with the FeCrAlY coating sputtered on the surface for 3 hours in a nitrogen atmosphere, wherein the annealing temperature is 600 ℃, so that the uniformity and crystallinity of coating components are improved, and the internal stress is reduced.
The surface scanning electron microscope photo and the section scanning electron microscope photo of the FeCrAlY coating prepared by the steps are respectively shown in figure 1 and figure 2, so that the coating is very compact, has no holes and cracks on the surface and has the thickness of 3.8 microns. Four different positions of the FeCrAlY coating were selected for X-ray spectroscopy, and the results are shown in FIG. 3. It can be seen that the coating composition is uniform and consistent, and very close to the alloy target composition.
Example two
Step 1: the base material of structural steel (ferritic/martensitic steel) is processed into a sample of suitable size. Before the experiment, the surface of the structural steel is polished by abrasive paper, then is put into a solution of ethanol and acetone for ultrasonic cleaning for 5 minutes respectively, and then is taken out and dried for later use.
Step 2: preparing the FeCrAlY coating by utilizing an unbalanced magnetron sputtering method: fixing the cleaned structural steel on a sample holder, putting the sample holder into a magnetron sputtering cavity, putting an alloy target (the components of which are 15 wt% of Cr, 8 wt% of Al, 0.5 wt% of Y and the balance of iron) into a target holder, fixing the alloy target, starting a vacuum pump, and allowing the vacuum in the magnetron sputtering cavity to reach 3 x 10-5Starting sputtering after Pa, adjusting the flow of argon to make the inlet pressure 3Pa, the magnetron sputtering current 20A, the pulse bias voltage-60V, and magnetron sputtering for 3 hours.
And step 3: after sputtering is finished, in-situ annealing is carried out on the structural steel with the FeCrAlY coating sputtered on the surface for 3 hours in a nitrogen atmosphere, wherein the annealing temperature is 600 ℃, so that the uniformity and crystallinity of coating components are improved, and the internal stress is reduced.
EXAMPLE III
Step 1: a structural steel (low activation ferrite/martensite steel) base material is processed into a sample of suitable size. Before the experiment, the surface of the structural steel is polished by abrasive paper, then is put into a solution of ethanol and acetone for ultrasonic cleaning for 10 minutes respectively, and then is taken out and dried for later use.
Step 2: preparing the FeCrAlY coating by utilizing an unbalanced magnetron sputtering method: fixing the cleaned structural steel on a sample rack, putting the sample rack into a sputtering cavity, putting an iron target material, an aluminum target material, a chromium target material and an yttrium target material into a target holder for fixing, starting a vacuum pump, and waiting for the vacuum in the magnetron sputtering cavity to reach 3 multiplied by 10-5And after Pa, starting sputtering, adjusting the flow of argon to ensure that the air inlet pressure is 3Pa, adjusting the magnetron sputtering current to be 20A, and pulse bias to be 60V, wherein the component ratio of the FeCrAlY coating is realized by respectively adjusting the sputtering power of the iron target, the aluminum target, the chromium target and the yttrium target, and the sputtering power of the iron target, the aluminum target, the chromium target and the yttrium target is respectively 120W,120W,120W and 100W in the embodiment.
And step 3: after sputtering is finished, in-situ annealing is carried out on the structural steel with the FeCrAlY coating sputtered on the surface for 3 hours in a nitrogen atmosphere, wherein the annealing temperature is 800 ℃, so that the uniformity and crystallinity of coating components are improved, and the internal stress is reduced.
Example four
Step 1: a base material of structural steel (austenitic stainless steel) is processed into a sample of suitable size. Before the experiment, the surface of the structural steel is polished by abrasive paper, then is put into a solution of ethanol and acetone for ultrasonic cleaning for 8 minutes respectively, and then is taken out and dried for later use.
Step 2: preparing the FeCrAlY coating by utilizing an unbalanced magnetron sputtering method: fixing the cleaned structural steel on a sample holder, putting the sample holder into a magnetron sputtering cavity, putting an alloy target (the components of which are Cr 9 wt%, Al4 wt%, Y0.3 wt% and the balance of iron) into a target holder, fixing, starting a vacuum pump, and allowing the vacuum in the magnetron sputtering cavity to reach 10%-4Starting sputtering after Pa, adjusting the flow of argon to make the inlet pressure 10Pa, the magnetron sputtering current 25A, the pulse bias voltage-200V, and magnetron sputtering for 10 hours.
And step 3: after sputtering is finished, the structural steel with the FeCrAlY coating sputtered on the surface is annealed in situ for 5 hours in a nitrogen atmosphere at the annealing temperature of 850 ℃ so as to improve the uniformity and crystallinity of the coating components and reduce internal stress.
EXAMPLE five
Step 1: a base material of structural steel (austenitic stainless steel) is processed into a sample of suitable size. Before the experiment, the surface of the structural steel is polished by abrasive paper, then is put into a solution of ethanol and acetone for ultrasonic cleaning for 8 minutes respectively, and then is taken out and dried for later use.
Step 2: preparing the FeCrAlY coating by utilizing an unbalanced magnetron sputtering method: fixing the cleaned structural steel on a sample holder, putting the sample holder into a magnetron sputtering cavity, putting an alloy target (the components of which are Cr 12 wt%, Al 6 wt%, Y0.4 wt% and the balance of iron) into a target holder, fixing the alloy target, starting a vacuum pump, and allowing the vacuum in the magnetron sputtering cavity to reach 10%-5Starting sputtering after Pa, adjusting the flow of argon to make the inlet pressure 8Pa, magnetron sputtering current 10A, pulse bias-100V, and magnetron sputtering for 2 hours.
And step 3: after sputtering is finished, in-situ annealing the structural steel with the FeCrAlY coating sputtered on the surface for 4 hours in a nitrogen atmosphere at the annealing temperature of 700 ℃ so as to improve the uniformity and crystallinity of the coating components and reduce internal stress.
The FeCrAlY coatings prepared in the second to fifth embodiments are very compact and have no holes or cracks on the surface when observed by a scanning electron microscope; the analysis of X-ray energy spectrum results at different positions also shows that the components of the FeCrAlY coating are uniform and consistent and are basically close to the components of the alloy target material.

Claims (7)

1. A preparation method of FeCrAlY coating with high temperature resistance and liquid lead or lead bismuth corrosion resistance is characterized by comprising the following steps:
step 1, polishing or sand blasting the surface of structural steel, ultrasonically cleaning, taking out and drying for later use;
step 2, preparing an FeCrAlY coating by using a non-equilibrium magnetron sputtering method: placing the cleaned structural steel in a magnetron sputtering cavity, fixing a metal simple substance target material or an alloy target material, starting a vacuum pump until the vacuum degree in the magnetron sputtering cavity reaches 10-4~10-5Starting sputtering after Pa, adjusting the flow of argon entering a magnetron sputtering cavity, enabling the air inlet pressure of the argon to be 3-10 Pa, controlling magnetron sputtering current to be 1-25A, pulse bias to be-50-200V, and magnetron sputtering time to be 2-10 hours;
and 3, after sputtering is finished, annealing the structural steel with the FeCrAlY coating sputtered on the surface for 2-5 hours in situ or ex situ in a nitrogen atmosphere at the annealing temperature of 600-850 ℃.
2. The method of preparing a FeCrAlY coating resistant to high temperature corrosion by liquid lead or lead bismuth as claimed in claim 1, characterized in that: the structural steel material in the step 1 is any one of austenitic stainless steel, ferrite/martensite steel and low activation ferrite/martensite steel.
3. The method of preparing a FeCrAlY coating resistant to high temperature corrosion by liquid lead or lead bismuth as claimed in claim 1, characterized in that: the structural steel material in the step 1 has any one of the trademarks of 316L, 316Ti, T91, SIMP and EP 823.
4. The method of preparing a FeCrAlY coating resistant to high temperature corrosion by liquid lead or lead bismuth as claimed in claim 1, characterized in that: and (3) after the surface of the structural steel in the step (1) is polished or sandblasted, putting the structural steel into ethanol and acetone solution, and respectively carrying out ultrasonic cleaning for 5-10 min.
5. The method of preparing a FeCrAlY coating resistant to high temperature corrosion by liquid lead or lead bismuth as claimed in claim 1, characterized in that: the metal single-substance target material in the step 2 comprises an iron target material, a chromium target material, an aluminum target material and an yttrium target material.
6. The method of preparing a FeCrAlY coating resistant to high temperature corrosion by liquid lead or lead bismuth as claimed in claim 1, characterized in that: the alloy target material in the step 2 comprises 9-15 wt% of Cr, 4-12 wt% of Al, 0.3-0.5 wt% of Y and the balance of Fe.
7. A FeCrAlY coating resistant to high temperature liquid lead/lead bismuth corrosion prepared by the preparation method of any one of claims 1 to 6.
CN201911092583.4A 2019-11-11 2019-11-11 FeCrAlY coating resistant to high temperature liquid lead or lead bismuth corrosion and preparation method thereof Pending CN111020500A (en)

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CN114086139A (en) * 2021-11-25 2022-02-25 西南科技大学 T91 and SIMP steel lead and bismuth corrosion resistance protection method
CN114540743A (en) * 2022-01-14 2022-05-27 江苏通和生物医药科技有限公司 Zirconium alloy surface plasma spraying remelting Cr/FeCrAl coating and preparation method thereof
CN115852326A (en) * 2022-11-29 2023-03-28 四川大学 Preparation method of FeCrAlYTi high-entropy alloy coating resistant to liquid lead/lead bismuth corrosion
CN115928018A (en) * 2022-11-29 2023-04-07 四川大学 Preparation method of liquid lead/lead bismuth corrosion resistant metal-ceramic composite coating

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纪奇: ""FeCrAlY涂层的制备与高温高压抗腐蚀性能研究"", 《中国优秀硕士学位论文全文数据库 工程科技I辑(月刊)》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114086139A (en) * 2021-11-25 2022-02-25 西南科技大学 T91 and SIMP steel lead and bismuth corrosion resistance protection method
CN114540743A (en) * 2022-01-14 2022-05-27 江苏通和生物医药科技有限公司 Zirconium alloy surface plasma spraying remelting Cr/FeCrAl coating and preparation method thereof
CN115852326A (en) * 2022-11-29 2023-03-28 四川大学 Preparation method of FeCrAlYTi high-entropy alloy coating resistant to liquid lead/lead bismuth corrosion
CN115928018A (en) * 2022-11-29 2023-04-07 四川大学 Preparation method of liquid lead/lead bismuth corrosion resistant metal-ceramic composite coating
CN115928018B (en) * 2022-11-29 2023-07-21 四川大学 Preparation method of liquid lead/lead bismuth corrosion resistant metal-ceramic composite coating
CN115852326B (en) * 2022-11-29 2023-08-22 四川大学 Preparation method of liquid lead/lead bismuth corrosion resistant FeCrAlYTi high-entropy alloy coating

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