CN115369287B - Preparation method of modified nickel-based superalloy IN625 coating applied to high-temperature atmosphere environment - Google Patents

Preparation method of modified nickel-based superalloy IN625 coating applied to high-temperature atmosphere environment Download PDF

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Publication number
CN115369287B
CN115369287B CN202210872735.8A CN202210872735A CN115369287B CN 115369287 B CN115369287 B CN 115369287B CN 202210872735 A CN202210872735 A CN 202210872735A CN 115369287 B CN115369287 B CN 115369287B
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nickel
coating
powder
based superalloy
modified
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CN115369287A (en
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彭文屹
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Nanchang University
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Nanchang University
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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%
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • 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
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • C23C24/106—Coating with metal alloys or metal elements only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Abstract

The invention discloses a preparation method of a modified nickel-based superalloy IN625 coating applied to a high-temperature atmosphere, which takes IN625 alloy powder and nickel-coated aluminum powder as raw materials and adopts a plasma surfacing technology to prepare the nickel-based superalloy IN625 coating. The nickel-based superalloy IN625 coating has higher alloying degree and improves the proportion of nickel-aluminum components on the basis of the original alloy. XRD and SEM analysis showed that after this process, a uniform single gamma phase microstructure was obtained. In the atmosphere, the high-temperature oxidation experiment at 1000 ℃ for 100 hours shows that the high-temperature oxidation resistance performance is better after the nickel-aluminum ratio is improved through the result analysis.

Description

Preparation method of modified nickel-based superalloy IN625 coating applied to high-temperature atmosphere environment
Technical Field
The invention relates to the field of high-temperature corrosion resistant alloy design and performance test, is suitable for the design of a heat-resistant coating on the inner wall of a high-temperature device, and relates to a modified nickel-based superalloy IN625 coating applied to a high-temperature atmosphere environment.
Background
The good high-temperature alloy material can improve the performance of high-temperature parts such as an engine, and with the industrialized development, the use of the parts at high temperature is gradually increased, and the use temperature is gradually increased. Various methods have been attempted to improve the corrosion resistance of structural materials in high temperature environments. Whereas nickel-base superalloys are designed to operate under high stress conditions in a high temperature oxidizing environment. In these alloys, optimal material properties can be obtained by compositional conditioning and heat treatment, and oxidation protection is provided by the formation of surface oxides. The invention provides a preparation method of a modified nickel-based superalloy IN625 coating applied to a high-temperature atmosphere environment, which is generally expensive, and aims to reduce the cost and expand the range of selectable materials IN the field
Disclosure of Invention
IN order to overcome the defects IN the prior art, the invention provides a preparation method of a modified nickel-based superalloy IN625 coating applied to a high-temperature atmosphere environment. The modified In625 alloy is prepared by taking In625 alloy powder and nickel-coated aluminum alloy powder as initial raw materials and adopting a plasma surfacing technology, and the oxidation resistance of the modified In625 alloy In the simulated high-temperature atmosphere is examined, so that the high-temperature resistant alloy coating with higher cost performance is obtained.
The modified nickel-based superalloy IN625 coating applied to the high-temperature atmosphere environment is characterized IN that: the In625 alloy powder and the nickel-coated aluminum powder are used as raw materials, and a plasma surfacing technology is adopted to prepare the nickel-based superalloy IN625 coating.
The modified nickel-based superalloy IN625 coating applied to the high-temperature atmosphere comprises the following chemical components of powder:
a modified nickel-base superalloy IN625 coating for use IN a high temperature atmospheric environment, comprising the steps of:
s1: ball milling and mixing In625 alloy powder and nickel-coated aluminum alloy powder;
s2: adding NiAl powder according to the weight ratio, adding In625 powder, ball milling and mixing for 1h, and taking out the mixed powder. And (3) placing the alloy powder mixed according to the proportion into a powder feeding tank, and performing plasma surfacing to obtain the modified In625 alloy coating.
The mixed alloy powder comprises the following actual components in percentage by weight:
Ni Cr Mo Nb Fe Al Ti C
65.17 17.83 6.79 2.76 3.46 3.48 0.24 0.049
the mixed alloy powder also contains a small amount of Si and Mn.
In S2, the parameters used by the plasma surface welding machine are that the protective air flow is 15L/min, the powder feeding air flow is 2L/min, the powder feeding air rotation speed is 9, and the welding current is 95A.
Application of modified nickel-based superalloy IN625 coating applied to high-temperature atmospheric environment:
the nickel-based superalloy IN625 coating has the characteristics of low cost and high corrosion resistance, and can be applied to the inner walls of various high-temperature parts.
Compared with the prior art, the invention has the beneficial effects that: at present, a nickel-based coating is prepared by adopting a build-up welding technology, so that certain oxidation resistance is achieved, but the cost is high. The invention aims to prepare a modified nickel-based superalloy IN625 coating by adding low-cost nickel-coated aluminum powder, and the modified nickel-based superalloy IN625 coating is used as an alloy material which can be selectively used IN the environment.
Drawings
FIG. 1 is a technical route flow diagram;
FIG. 2 is a metallographic micrograph of an alloy;
FIG. 3 is a graph of the oxidation kinetics at 1000℃and 100h for an alloy;
FIG. 4 is an X-ray diffraction spectrum A of the alloy surface after high temperature oxidation, in 625B, modified In625;
FIG. 5 shows the cross-sectional morphology of In625 after 100h of high temperature oxidation at 1000 ℃;
FIG. 6 is a cross-sectional morphology of modified In625 after 100h high temperature oxidation at 1000 DEG C
Detailed Description
The following examples are further detailed descriptions of the present invention.
Example 1
First, preparation of modified In625 alloy powder: in625 alloy powder with Ni80Al20 at 84: doping by 16 weight, adding materials, ball milling and mixing for 1h, and taking out mixed powder.
Secondly, preparing a modified In625 alloy coating by a plasma surfacing technology: cutting the modified In625 alloy coating into blocks, annealing, wire cutting and polishing the alloy, and detecting metallographic phase, XRD, SEM/EDS and the like to determine the characteristics of the structure, the composition, the morphology and the like of the alloy.
High temperature oxidation experiment:
the sample is weighed and the accurate size is measured by a vernier caliper. High temperature oxidation experiments were performed at 1000 ℃ in an atmosphere. Placing the sample into a crucible, heating to 1000 ℃ at a speed of 5 ℃/min in the furnace, preserving heat for 10 hours, taking out the sample after the sample is cooled along with the furnace, weighing, repeating the operation until the oxidation is completed for 100 hours, and obtaining an oxidation kinetics curve.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The modified nickel-based superalloy IN625 coating applied to the high-temperature atmosphere environment is characterized IN that: the coating takes In625 alloy powder and nickel-coated aluminum powder as raw materials, and adopts a plasma surfacing technology to prepare a nickel-based superalloy IN625 coating; the parameters used by the plasma surface welding machine are that the protective air flow is 15L/min, the powder feeding air flow is 2L/min, the powder feeding air rotation speed is 9r/s, and the welding current is 95A; the mass ratio of the In625 alloy powder to the nickel-coated aluminum powder is 84:16;
the IN625 alloy powder comprises the following chemical components IN percentage by weight: cr21.23%, mo8.08%, fe4.12%, nb3.29%, al0.34%, ti0.29%, si0.23%, mn0.24%, C0.059%, and Ni in balance; the chemical components of the nickel-coated aluminum powder are 20% of Al and 80% of Ni.
2. A method of preparing the modified nickel-base superalloy IN625 coating for use IN high temperature atmospheric environments as claimed IN claim 1, comprising the steps of:
s1: adding NiAl powder into a ball mill according to the weight proportion, adding In625 powder, and performing 1h ball milling and mixing to obtain mixed alloy powder;
s2: and (3) placing the mixed alloy powder into a powder feeding tank, and performing plasma surfacing to obtain the modified In625 alloy coating.
3. The method for preparing the modified nickel-based superalloy IN625 coating applied to high-temperature atmosphere according to claim 2, wherein the method comprises the following steps:
the ratio of Ni, cr, mo, fe, al, ti and C in the mixed alloy powder is as follows: ni65.17%, cr17.83%, mo6.79%, fe3.46%, nb2.76%, al3.48%, ti0.24%, C0.049%.
4. The use of a modified nickel-base superalloy IN625 coating for high temperature atmospheric environments according to claim 1, wherein:
the nickel-based superalloy IN625 coating is applied to the inner wall of a high-temperature part.
CN202210872735.8A 2022-07-21 2022-07-21 Preparation method of modified nickel-based superalloy IN625 coating applied to high-temperature atmosphere environment Active CN115369287B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105986216A (en) * 2015-02-10 2016-10-05 中国科学院宁波材料技术与工程研究所 Nickel base anti-abrasion coating and preparation method and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886225B1 (en) * 2013-12-23 2017-06-07 Ansaldo Energia IP UK Limited Gamma prime precipitation strengthened nickel-base superalloy for use in powder based additive manufacturing process
CN108796308B (en) * 2017-05-04 2020-09-18 中国科学院金属研究所 Nickel-based high-temperature alloy with low crack sensitivity, low density and high strength
WO2021118762A1 (en) * 2019-11-18 2021-06-17 6K Inc. Unique feedstocks for spherical powders and methods of manufacturing
CN111250900B (en) * 2020-02-24 2022-11-01 江西恒大高新技术股份有限公司 Preparation method of modified Inconel625 powder surfacing coating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105986216A (en) * 2015-02-10 2016-10-05 中国科学院宁波材料技术与工程研究所 Nickel base anti-abrasion coating and preparation method and application thereof

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