Iron-based Cr3C2 laser-cladding coating added with CeO2 and preparation method of coating

A laser cladding and coating technology, which is applied in the coating, metal material coating process, etc., can solve the problems of easy generation of pores and cracks, poor formability and cladding performance, and affecting the performance of iron-based alloy coatings. , to achieve the effect of uniform and refined structure, good wear resistance and toughness, optimized quantity and distribution shape

Active Publication Date: 2015-12-02
ANHUI MA STEEL SURFACE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the relatively poor formability and cladding performance of the existing laser cladding iron-based alloy coating, and quality defects such as air holes and cracks are easy to occur during the cladding process, thereby affecting the service performance of the iron-based alloy coating deficiency, provides a way to add CeO 2 Fe-based Cr 3 C 2 Laser cladding coating and preparation method thereof

Method used

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  • Iron-based Cr3C2 laser-cladding coating added with CeO2 and preparation method of coating
  • Iron-based Cr3C2 laser-cladding coating added with CeO2 and preparation method of coating
  • Iron-based Cr3C2 laser-cladding coating added with CeO2 and preparation method of coating

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Embodiment 1

[0049] A kind of adding CeO of this embodiment 2 Fe-based Cr 3 C 2 The laser cladding coating is prepared by laser cladding after mixing the following mass percentage components uniformly: 70% iron-based self-fluxing alloy powder, Cr 3 C 2 Alloy powder 29.2% and CeO 2 Powder 0.8%. Wherein, the above-mentioned Fe-based self-fluxing alloy powder is composed of the following components in mass percentage: C0.09%, Cr15%, Ni5%, Si2.8%, B1.0%, Mo0.5%, Fe is the balance, And the particle size of the Fe-based self-fluxing alloy powder is about 70 μm. Cr 3 C 2 The alloy powder is Ni, Cr-Cr 3 C 2 Composite powder, where Cr 3 C 2 Cr in alloy powder 3 C 2 The mass percentage content is 85%, and the Cr 3 C 2 In the alloy powder, the powder with a particle size of 50 μm to 80 μm accounts for Cr 3 C 2 The percentage of the total mass of the alloy powder is 60%, and the powder with a particle size of 80 μm to 110 μm accounts for Cr 3 C 2 The percentage of the total mass of ...

Embodiment 2

[0084] A kind of adding CeO of this embodiment 2 Fe-based Cr 3 C 2 The laser cladding coating is prepared by laser cladding after mixing the following mass percentage components uniformly: 70% iron-based self-fluxing alloy powder, Cr 3 C 2 Alloy powder 29% and CeO 2 Powder 1%. Wherein, the above-mentioned Fe-based self-fluxing alloy powder is composed of the following components in mass percentage: C0.07%, Cr17%, Ni6%, Si2.5%, B0.9%, Mo0.6%, Fe is the balance, And the particle size of the Fe-based self-fluxing alloy powder is about 120 μm. Cr 3 C 2 The alloy powder is Ni, Cr-Cr 3 C 2 Composite powder, where Cr 3 C 2 Cr in alloy powder 3 C 2 The mass percentage content is 85%, and the Cr 3 C 2 In the alloy powder, the powder with a particle size of 50 μm to 80 μm accounts for Cr 3 C 2 The percentage of the total mass of the alloy powder is 60%, and the powder with a particle size of 80 μm to 110 μm accounts for Cr 3 C 2 The percentage of the total mass of the...

Embodiment 3

[0096] A kind of adding CeO of this embodiment 2 Fe-based Cr 3 C 2 The laser cladding coating is prepared by laser cladding after uniformly mixing the following components by mass percentage: 65% iron-based self-fluxing alloy powder, Cr 3 C 2 Alloy powder 34% and CeO 2 Powder 1%. Among them, the above-mentioned Fe-based self-fluxing alloy powder is composed of the following components in mass percentage: C0.08%, Cr18%, Ni6.5%, Si2.0%, B0.7%, Mo0.6%, Fe is more than The amount, and the particle size of the Fe-based self-fluxing alloy powder is about 60 μm. Cr 3 C 2 The alloy powder is Ni, Cr-Cr 3 C 2 Composite powder, where Cr 3 C 2 Cr in alloy powder 3 C 2 The mass percentage content is 85%, and the Cr 3 C 2 In the alloy powder, the powder with a particle size of 50 μm to 80 μm accounts for Cr 3 C 2 The percentage of the total mass of the alloy powder is 60%, and the powder with a particle size of 80 μm to 110 μm accounts for Cr 3 C 2 The percentage of the t...

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Abstract

The invention discloses an iron-based Cr3C2 laser-cladding coating added with CeO2 and a preparation method of the coating, and belongs to the technical field of surface modification. The coating is prepared by uniformly mixing the following components in percentage by mass for laser-cladding: 65-73% of iron-based self-fluxing alloy powder, 26.5-34% of Cr3C2 alloy powder and 0.5-1% of CeO2 powder. The preparation method comprises the following steps: powder preparation; uniform mixing and drying; preparation and post-treatment of the coating. Through adoption the technical scheme, the rigidity, abrasion resistance and high-temperature oxidation resistance of the coating can be improved; besides, the forming quality and cladding property of the coating can be remarkably improved to inhibit and eliminate bubbles and cracks.

Description

technical field [0001] The invention belongs to the technical field of surface modification, and more specifically relates to a method of adding CeO 2 Fe-based Cr 3 C 2 Laser cladding coating and its preparation method. Background technique [0002] Wear and corrosion on the surface of materials is the main reason for the failure of engineering parts. Every year, wear and corrosion cause large economic losses to countries. Therefore, it is necessary to improve the surface properties of materials, especially to improve their wear resistance and oxidation resistance. is crucial. As one of the methods of surface strengthening and material protection, laser cladding technology uses a high-energy-density laser beam as a heat source to deposit a layer of alloy powder with special properties on the surface of a common metal substrate, thereby significantly improving the surface of the base metal. Performance, greatly extending the service life of parts. Compared with other sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C38/54B22F1/00
Inventor 斯松华刘自龙贺文文王振兴张磊
Owner ANHUI MA STEEL SURFACE TECH CO LTD
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