[1]付娅琦*,杨 林,孟伟娜,等.doi: 10.3969/j.issn.1001-3849.2025.09.008Q345钢表面激光熔覆高熵合金涂层及其耐蚀耐磨性能研究[J].电镀与精饰,2025,(09):54-60.
　Fu Yaqi*,Yang Lin,Meng Weina,et al.Research on laser cladding high entropy alloy coating on the surface of Q345 steel and its corrosion and wear resistance[J].Plating & Finishing,2025,(09):54-60.
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doi: 10.3969/j.issn.1001-3849.2025.09.008Q345钢表面激光熔覆高熵合金涂层及其耐蚀耐磨性能研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年09
页码:
54-60
栏目:
出版日期:
2025-09-30

文章信息/Info

Title:
Research on laser cladding high entropy alloy coating on the surface of Q345 steel and its corrosion and wear resistance
作者:
付娅琦1*; 杨 林1; 孟伟娜1; 罗芷晴2; 安熙偌2
(1. 安阳职业技术学院 机电工程学院,河南 安阳 455000;2. 郑州大学 材料科学与工程学院,河南 郑州 450001)
Author(s):
Fu Yaqi1*;  Yang Lin1;  Meng Weina1;  Luo Zhiqing2;  An Xiruo2
(1. School of Mechanical and Electrical Engineering, Anyang Vocational and Technical College, Anyang 455000, China; 2. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China)
关键词:
激光熔覆; 高熵合金涂层; x值; 显微组织; 耐蚀和耐磨性能
Keywords:
laser cladding;  high entropy alloy coating;  x value;  microstructure;  corrosion resistance and wear resistance
分类号:
TG174.4
文献标志码:
A
摘要:
为了提升Q345钢的表面耐蚀性和耐磨性，采用激光熔覆的方法在Q345钢基体表面制备了不同x值的AlCoCrFeNiMox(TiC)1.6–x(x=0、0.4、0.8、1.2和1.6)高熵合金涂层。研究了不同x值时激光熔覆涂层的物相组成、显微形貌、硬度、耐蚀性和耐磨性能。结果表明：x值会对激光熔覆涂层的物相组成和显微形貌造成明显影响，x=0.8时激光熔覆涂层中Al2O3相和TiC相细小且分布均匀，x=1.2时激光熔覆涂层中会出现σ(Fe3Mo)相。Q345钢基体表面激光熔覆涂层的硬度明显高于Q345钢基体，x=1.2时激光熔覆涂层的平均显微硬度最大(1 167.6 HV)；摩擦系数、磨痕宽度-深度和磨损率的测试结果表明x=0.8时激光熔覆涂层具有最小的平均摩擦系数、磨痕深度和磨损率。极化曲线和电化学阻抗谱的测试结果保持一致，即激光熔覆涂层的耐蚀性从高至低顺序为：x=0.8>x=1.2>x=0.4>x=0> x=1.6>基体，激光熔覆涂层的耐蚀性都优于Q345钢基体。x=0.8时Q345钢基体表面激光熔覆涂层具有最佳的耐蚀性和耐磨性。
Abstract:
In order to improve the surface corrosion resistance and wear resistance of Q345 steel, AlCoCrFeNiMox(TiC)1.6–x (x=0, 0.4, 0.8, 1.2, and 1.6) high entropy alloy coatings with different x values were prepared on the surface of Q345 steel substrate by laser cladding method. The phase composition, microstructure, hardness, corrosion resistance, and wear resistance of laser cladding coatings were studied under different x values. The results indicate that the value of x has a significant impact on the phase composition and microstructure of laser cladding coatings. When x=0.8, the Al2O3 and TiC phases in the laser cladding coating are small and evenly distributed, while when x=1.2, the σ (Fe3Mo) phase appears in the laser cladding coating. The hardness of the laser cladding coating on the surface of Q345 steel substrate is significantly higher than that of Q345 steel substrate, and the average microhardness of the laser cladding coating is the highest at x=1.2 (1 167.6 HV); The test results of friction coefficient, wear scar width depth, and wear rate indicate that the laser cladding coating has the smallest average friction coefficient, wear scar depth, and wear rate when x=0.8. The polarization curve and electrochemical impedance spectroscopy test results are consistent, that is, the corrosion resistance of laser cladding coatings from high to low is in the order of x=0.8>x=1.2>x=0.4>x=0>x=1.6>substrate, and the corrosion resistance of laser cladding coatings is better than that of Q345 steel substrate. When x=0.8, the laser cladding coating on the surface of Q345 steel substrate has the best corrosion resistance and wear resistance

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更新日期/Last Update: 2025-09-11