CN111250900B - Preparation method of modified Inconel625 powder surfacing coating - Google Patents

Preparation method of modified Inconel625 powder surfacing coating Download PDF

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CN111250900B
CN111250900B CN202010112550.8A CN202010112550A CN111250900B CN 111250900 B CN111250900 B CN 111250900B CN 202010112550 A CN202010112550 A CN 202010112550A CN 111250900 B CN111250900 B CN 111250900B
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inconel625
powder
coating
surfacing
modified
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CN111250900A (en
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熊剑
门丹丹
彭文屹
白凌云
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JIANGXI HENGDA HI-TECH CO LTD
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JIANGXI HENGDA HI-TECH CO LTD
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3033—Ni as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/362—Selection of compositions of fluxes
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention discloses a preparation method of a modified Inconel625 powder surfacing coating, which takes domestic Inconel625 powder as an initial raw material, and Y is respectively used as a modified component2O3And aluminum powder. Wherein Y is2O3Is 0.5wt%, and the Al powder is 20 wt%. Adopting laser plasma surfacing equipment to perform powder surfacing on the surface of Q235 steel to prepare Inconel625 and Y2O3Inconel625 and Al Inconel 625. Through the research on the cross section appearance, the metallographic structure, the microhardness, the high-temperature cyclic oxidation resistance and the molten salt corrosion resistance of the coating, the results show that: the surfacing layer is well combined with the matrix, the porosity is extremely low, and the coating quality is excellent; the Al Inconel625 coating achieved the greatest microhardness, with an average test value of 500 and the remainder of the samples being around 200. The coating prepared by the invention has good oxidation resistance.

Description

Preparation method of modified Inconel625 powder surfacing coating
Technical Field
The invention relates to the technical field of anticorrosive coating design, in particular to a preparation method of a modified Inconel625 powder surfacing coating.
Background
The Inconel625 has better corrosion resistance, particularly chlorine corrosion resistance and pitting corrosion resistance, and is already applied to the design and use of corrosion-resistant coatings on the inner walls of furnace bodies of garbage incinerators and the like. However, the product is expensive, and in order to further improve the corrosion resistance of the product and ensure the maximum utilization of capital cost, the invention provides that a modified element component is doped into an Inconel625 powder matrix so as to further improve the corrosion resistance of the product.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preparation scheme of a modified Inconel625 powder surfacing coating. By Y2O3Or Al is added, the grain boundary performance of an Inconel625 tissue is improved, and the molten salt corrosion resistance and the high-temperature oxidation resistance of the Inconel625 overlaying layer are improved.
The invention adopts the following technical scheme:
the invention takes domestic Inconel625 powder as an initial raw material, and the modified components are respectively Y2O3And aluminum powder. Wherein Y is2O3Is 0.5wt%, and the Al powder is 20 wt%. Adopting laser plasma surfacing equipment to perform powder surfacing on the surface of Q235 steel to prepare Inconel625 and Y2O3Inconel625 and Al Inconel 625. The surfacing adopts an end surface surfacing mode, the current is 80A, the powder feeding speed is 5r/s, the swing distance is 4mm, the swing speed is 10mm, the progressive distance is 5mm, and the thickness of a surfacing layer is 2mm. And cutting the overlaid sample into small samples of 10x10x12mm by adopting linear cutting, and carrying out metallographic analysis and corrosion test in the next step.
The preparation method of the modified Inconel625 powder surfacing coating comprises the following specific steps:
firstly, grinding a 20x20x1.2cm Q235 plate by using 80#, 200#, 600# abrasive paper, removing surface oxide scales, cleaning by using ethanol, and naturally airing.
Secondly, adopting laser plasma surfacing equipment to perform powder surfacing on the surface of the Q235 steel material to prepare Inconel625 and Y2O3Inconel625, al Inconel625, Y2O3Is 0.5wt%, and the Al powder is 20 wt%. The surfacing adopts an end surface surfacing mode, the current is 80A, the powder feeding speed is 5r/s, the swinging distance is 4mm, and the swinging speed is 10mm, the progressive distance is 5mm, and the thickness of the overlaying layer is 2mm.
And cutting the overlaid sample into small samples of 10x10x12mm by adopting linear cutting, and carrying out metallographic analysis and corrosion test in the next step.
Compared with the prior art, the invention has the beneficial effects that: y is2O3The doping obviously improves the molten salt corrosion resistance and cyclic oxidation resistance of the coating, the hardness of the coating can be obviously improved by adding Al, the high-temperature cyclic oxidation resistance of the Inconel625 powder surfacing layer is improved, the metallurgical bonding is formed between the coating obtained by the surfacing process and a substrate, the porosity of the coating is negligible, and the quality is excellent.
Drawings
FIG. 1 is a technical route flow diagram;
FIG. 2 shows metallographic morphology (500X) for different weld overlays;
FIG. 3 is a cross-sectional view (SEM) of a weld overlay
FIG. 4 is a kinetic curve of molten salt corrosion resistance of different overlaying layers (mass ratio NaCl: na)2SO4＝1:1)；
FIG. 5 is a graph of the kinetics of cyclic oxidation at 800 deg.C for different weld overlays.
Detailed Description
The following examples are further detailed descriptions of the present invention.
Example 1
Firstly, a 20x20x1.2cm Q235 plate is ground by 80#, 200# and 600# abrasive paper, surface oxide skin is removed, and the plate is cleaned by ethanol and naturally dried.
Secondly, adopting laser plasma surfacing equipment to perform powder surfacing on the surface of the Q235 steel material to prepare Inconel625 and Y2O3Inconel625, al-Inconel 625 three corrosion-resistant coatings, Y2O3Is 0.5wt%, and the Al powder is 20 wt%. The surfacing adopts an end surface surfacing mode, the current is 80A, the powder feeding speed is 5r/s, the swing distance is 4mm, the swing speed is 10mm, the progressive distance is 5mm, and the thickness of a surfacing layer is 2mm.
And cutting the overlaid sample into small samples of 10x10x12mm by adopting linear cutting, and carrying out metallographic analysis and corrosion test in the next step.
(1) Metallographic analysis:
1) And respectively grinding the samples of different coating materials on 240#, 800#, 1200# and 2000# sandpaper in sequence, and polishing until the surfaces are bright and have no scratches.
2) Preparing aqua regia corrosive liquid (HCl: HNO)3= 3:1) and nital (4% hno)3+ alcohol).
3) Mixing Inconel625, Y2O3Placing an Inconel625 sample in aqua regia corrosive solution for corrosion for 1min, placing an Al.
(2) And (3) hardness testing:
this test is for guaranteeing the level and smooth of sample hardness test surface, and it is smooth to polish sample surface coating with 80# abrasive paper earlier, uses 240#, 800#, 1200#, 2000# abrasive paper to polish A1 ~ A4 sample surface and polishing in proper order, and the reuse alcohol washs the sample surface and dries. And (3) measuring the hardness of samples of different coating materials by using an HXS-1000A micro Vickers hardness tester with the loading load of 300N and the loading time of 20s, selecting five points on the surface of each sample for measurement, removing the maximum value and the minimum value, and taking the average hardness value of the rest three points as a representative value.
(3) Molten salt corrosion:
and (4) grinding and polishing the sample, measuring the accurate size by using a vernier caliper, and weighing. Configured mass ratio Na2SO4NaCl is 1:1, and the composite salt solution is uniformly dripped on the surface of a sample coating by a dropper and dried by a blower. And putting the sample into a muffle furnace at 800 ℃ for corrosion test, taking out after 50min, air-cooling for 10min, weighing, putting into the muffle furnace for continuous corrosion, and repeating the cycle for 24 times.
(4) Cyclic oxidation:
and (3) removing the link of dripping the double-salt solution, and performing the same molten salt corrosion step as the step (3) for the rest of operations.
The results show that: the surfacing layer is well combined with the substrate, and the coating quality is excellent; inconel625 coating achieved the greatest microhardness with an average test value of 500, with the remainder testedThe sample is about 200. Y is2O3The doping of (2) purifies the crystal boundary, and is beneficial to improving the corrosion resistance of the coating. The kinetic data of the 800 ℃ molten salt corrosion show that the oxidation resistance of the three coatings is Y from strong to weak2O3:Inconel625>Inconel625>Inconel625 as Al; the dynamic data of the cyclic oxidation at 800 ℃ show that the oxidation resistance of the three coatings is Y from strong to weak2O3:Inconel625>Al:Inconel625>Inconel625。
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. A preparation method of a modified Inconel625 powder surfacing coating is characterized by comprising the following steps: the Inconel625 powder is used as an initial raw material, and the modified components are respectively Y2O3And aluminum powder, overlaying the powder on the surface of the Q235 steel by adopting laser plasma overlaying equipment to respectively prepare Inconel625 and Y2O3Inconel625 and Al-Inconel 625, wherein the surfacing adopts an end surface surfacing mode, the current is 80A, the powder feeding speed is 5r/s, the swinging distance is 4mm, the swinging speed is 10mm, the progressive distance is 5mm, and the thickness of the surfacing layer is 2mm.
2. The method of making a modified Inconel625 hardfacing coating of claim 1, wherein: y is2O3Is 0.5wt%, and the Al powder is 20 wt%.
3. The method of making a modified Inconel625 hardfacing coating of claim 1, wherein: the granularity of the aluminum powder is 200 meshes.
4. The method of making a modified Inconel625 hardfacing coating of claim 1, wherein: the base material is a Q235 plate with the thickness of 12mm.
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CN112157370B (en) * 2020-08-28 2022-05-10 中国石油天然气股份有限公司 Nickel-based alloy powder for remanufacturing sealing surface of liquid inlet and outlet valve of water injection pump in oil field and method thereof
CN113237821B (en) * 2021-04-26 2023-03-10 江西科技师范大学 Preparation and detection method of yttrium-doped Inconel625 alloy applied to oxidative high-temperature chlorine corrosion environment
CN115216721A (en) * 2022-07-20 2022-10-21 华能国际电力股份有限公司 Coating composition for turbine blade, coating and preparation method
CN115369287B (en) * 2022-07-21 2023-07-28 南昌大学 Preparation method of modified nickel-based superalloy IN625 coating applied to high-temperature atmosphere environment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1424173A (en) * 2003-01-08 2003-06-18 武汉理工大学 Wear resistant high iron-aluminum based welding wire for build-up welding
CN1580324A (en) * 2003-07-30 2005-02-16 合肥工业大学 Nickel base self-fusible alloy-rare earth composite coating material and its preparing method
CN101037755A (en) * 2007-04-20 2007-09-19 上海工程技术大学 Rare earth appended surfacing alloy and surfacing technique for preparation of aluminium matrix composite material
EP2338201A2 (en) * 2008-10-14 2011-06-29 University of Florida Research Foundation, Inc. Advanced materials and design for low temperature sofcs
CN104551405A (en) * 2013-10-18 2015-04-29 西门子公司 Method of directionally post treating a welding seam during laser build up welding
CN105081612A (en) * 2015-09-22 2015-11-25 山东大学 Plasma arc overlaying alloy powder used for heat-working die
CN106825988A (en) * 2017-02-25 2017-06-13 河北工业大学 A kind of plasma arc surfacing high-temperature corrosion resistance and abrasion Co-based powder
CN109234727A (en) * 2018-09-30 2019-01-18 安徽工业大学 A kind of iron-based Cr of plasma surfacing adding micron Ti3C2Hypereutectic wear-resistant coating and preparation method thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7163713B2 (en) * 1999-07-31 2007-01-16 The Regents Of The University Of California Method for making dense crack free thin films
CN101717881B (en) * 2009-09-22 2011-04-13 苏州大学 Cobalt-nickel-free based alloy for strengthening coating of sealing surface of nuclear power valve
CN101914767B (en) * 2010-08-11 2012-07-04 丁家伟 Preparation process and device of nano-particle reinforced bimetal composite
CN102079021B (en) * 2011-01-26 2013-08-14 江西恒大高新技术股份有限公司 Tubular welding wire for anti-cavitation overlaying of rotating wheel of hydraulic turbine
CN102851544B (en) * 2012-10-09 2015-04-01 天津市铸金表面工程材料科技开发有限公司 Corrosion-resistant nickel-base alloy overlay welding powder
EP2756912A1 (en) * 2013-01-18 2014-07-23 Siemens Aktiengesellschaft Remelting for build-up welding
CN104233282B (en) * 2013-06-20 2016-12-28 沈阳大陆激光技术有限公司 A kind of Co-based alloy powder repaired for wheel disc of turbocharger of internal combustion engine
US11186887B2 (en) * 2013-12-13 2021-11-30 Tata Steel Limited Multi-track laser surface hardening of low carbon cold rolled closely annealed (CRCA) grades of steels
CN104018156B (en) * 2014-06-18 2017-07-28 浙江工业大学 A kind of Metal Substrate/diamond laser composite coating and preparation method thereof
JP6994295B2 (en) * 2015-12-17 2022-01-14 セイコーエプソン株式会社 3D model manufacturing method and 3D model manufacturing equipment
CN106435580B (en) * 2016-11-25 2019-04-23 福州大学 The Ni-based molybdenum disulfide powder of laser melting coating, and preparation method thereof and application method
CN107116290B (en) * 2017-06-08 2019-04-30 南华大学 The method of mariages plasma arc surfacing manufacture particles reiforced metal-base composition
CN108746959B (en) * 2018-07-23 2020-04-21 武汉理工大学 Preparation method of ceramic powder reinforced metal base welding layer and powder feeding device thereof
CN110499433B (en) * 2019-09-16 2023-12-29 南华大学 Layered composite material additive manufacturing device and method based on rolling and electric arc
CN110616420B (en) * 2019-10-24 2021-06-29 江西科技师范大学 Preparation method of composite anti-corrosion coating for inner wall of waste incinerator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1424173A (en) * 2003-01-08 2003-06-18 武汉理工大学 Wear resistant high iron-aluminum based welding wire for build-up welding
CN1580324A (en) * 2003-07-30 2005-02-16 合肥工业大学 Nickel base self-fusible alloy-rare earth composite coating material and its preparing method
CN101037755A (en) * 2007-04-20 2007-09-19 上海工程技术大学 Rare earth appended surfacing alloy and surfacing technique for preparation of aluminium matrix composite material
EP2338201A2 (en) * 2008-10-14 2011-06-29 University of Florida Research Foundation, Inc. Advanced materials and design for low temperature sofcs
CN104551405A (en) * 2013-10-18 2015-04-29 西门子公司 Method of directionally post treating a welding seam during laser build up welding
CN105081612A (en) * 2015-09-22 2015-11-25 山东大学 Plasma arc overlaying alloy powder used for heat-working die
CN106825988A (en) * 2017-02-25 2017-06-13 河北工业大学 A kind of plasma arc surfacing high-temperature corrosion resistance and abrasion Co-based powder
CN109234727A (en) * 2018-09-30 2019-01-18 安徽工业大学 A kind of iron-based Cr of plasma surfacing adding micron Ti3C2Hypereutectic wear-resistant coating and preparation method thereof

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
冷喷涂Cu402F涂层激光重熔表面改性后摩擦学行为;陈正涵等;《表面技术》;20171020(第10期);全文 *
浅述几种典型激光加工技术在航空制造领域的应用现状;李兴等;《航空制造技术》;20191215;全文 *
等离子堆焊Q235电解打壳锤头的组织和性能;曹红美等;《中国表面工程》;20120615(第03期);全文 *
等离子弧堆焊镍基复合粉末涂层材料;董丽虹等;《焊接学报》(第01期);全文 *

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