-5 mm3·N-1·m-1。磨損機(jī)制為粘著磨損和磨粒磨損。"/>

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激光重熔合成FeCrAlCu(Ni, Co)高熵合金涂層組織與耐磨性能
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作者單位:

1.蘭州理工大學(xué) 材料科學(xué)與工程學(xué)院，甘肅 蘭州 730050;2.蘭州理工大學(xué) 省部共建有色金屬先進(jìn)加工與再利用國(guó)家重點(diǎn)實(shí)驗(yàn)室，甘肅 蘭州 730050

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基金項(xiàng)目:

中核核電運(yùn)行管理有限公司重點(diǎn)研發(fā)項(xiàng)目(QS4FY-22003224)


Microstructure and Wear Resistance Properties of FeCrAl-Cu(Ni, Co) HEA Coatings Synthesized by Laser Remelting
Author:
Affiliation:

1.School of Materials Science and Technology, Lanzhou University of Technology, Lanzhou 730050, China;2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

Fund Project:

Supported by China National Nuclear Power Plant Operation (QS4FY-22003224)

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    摘要:

    通過冷噴涂輔助激光重熔合成高熵合金涂層，在45#鋼表面制備FeCrAlCu、FeCrAlCuNi、FeCrAlCuCo和FeCrAlCuNiCo高熵合金涂層。結(jié)果表明，這4種高熵合金涂層均由面心立方+體心立方相構(gòu)成，涂層的組織由柱狀樹枝晶構(gòu)成。隨著Ni、Co元素的同時(shí)添加，涂層中的柱狀樹枝晶晶粒逐漸細(xì)化。FeCrAlCuNiCo高熵合金涂層的摩擦性能最佳，涂層的硬度為5847.7 MPa，摩擦因數(shù)為0.45，磨損率為3.72×10-5 mm3·N-1·m-1。磨損機(jī)制為粘著磨損和磨粒磨損。

    Abstract:

    FeCrAlCu, FeCrAlCuNi, FeCrAlCuCo, and FeCrAlCuNiCo high-entropy alloy (HEA) coatings were synthesized on the surface of 45# steel through cold spraying-assisted laser remelting. Results reveal that all four HEA coatings are composed of face-centered cubic+body-centered cubic phases. Additionally, the microstructure of the coatings consists of columnar dendrites. With the simultaneous addition of both Ni and Co elements, the columnar dendritic grains are gradually refined in the coating. Moreover, the FeCrAlCuNiCo HEA coating exhibits excellent friction performance with the coating hardness of 5847.7 MPa, friction factor of 0.45, and wear rate of 3.72×10-5 mm3·N-1·m-1. The predominant wear mechanism is the adhesive wear and abrasive wear.

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馬凱,馮力,趙燕春,劉建軍.激光重熔合成FeCrAlCu(Ni, Co)高熵合金涂層組織與耐磨性能[J].稀有金屬材料與工程,2024,53(10):2747~2754.[Ma Kai, Feng Li, Zhao Yanchun, Liu Jianjun. Microstructure and Wear Resistance Properties of FeCrAl-Cu(Ni, Co) HEA Coatings Synthesized by Laser Remelting[J]. Rare Metal Materials and Engineering,2024,53(10):2747~2754.]
DOI：10.12442/j. issn.1002-185X.20240095

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  • 收稿日期:2024-02-27
  • 最后修改日期:2024-06-19
  • 錄用日期:2024-07-04
  • 在線發(fā)布日期: 2024-09-27
  • 出版日期: 2024-09-27