[1]王 戈,王国栋,张 达,等.doi: 10.3969/j.issn.1001-3849.2026.01.011激光功率对17-4PH不锈钢熔覆层组织和性能的影响[J].电镀与精饰,2026,(01):87-92.
　WANG Ge,WANG Guodong,ZHANG Da,et al.Effects of laser power on microstructure and properties of 17-4PH stainless steel cladding layer[J].Plating & Finishing,2026,(01):87-92.
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doi: 10.3969/j.issn.1001-3849.2026.01.011激光功率对17-4PH不锈钢熔覆层组织和性能的影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年01
页码:
87-92
栏目:
出版日期:
2026-01-31

文章信息/Info

Title:
Effects of laser power on microstructure and properties of 17-4PH stainless steel cladding layer
作者:
王 戈; 王国栋; 张 达; 赵汉卿; 齐晓婷; 杨 慧
(佳木斯大学 材料科学与工程学院,黑龙江 佳木斯 154000)
Author(s):
WANG Ge;  WANG Guodong;  ZHANG Da;  ZHAO Hanqing;  QI Xiaoting;  YANG Hui
(School of Materials Science and Engineering, Jiamusi University, Jiamusi 154000, China)
关键词:
激光熔覆; 17-4PH不锈钢; 显微组织; 耐磨性; 耐蚀性
Keywords:
laser cladding;  17-4PH stainless steel;  microstructure;  wear resistance;  corrosion resistance
分类号:
TG174.4；TQ153
文献标志码:
A
摘要:
Q235钢被广泛应用于各个领域，用于制造各种机械零部件、结构件等。但Q235钢在硬度、耐磨、耐蚀方面的性能较低，制造的零部件、结构件无法在恶劣环境条件下服役。激光熔覆技术能够在一些关键零部件表面熔覆一层组织性能优异的涂层，从而来改善该部件的综合性能，本文主要以Q235钢为研究对象，通过改变激光熔覆的激光功率来提升17-4PH不锈钢熔覆层的组织和综合性能，进而探究最佳的激光功率参数。采用X射线衍射仪、金相显微镜和扫描电子显微镜研究了熔覆层的物相组成和显微组织，并利用能谱仪分析了界面处的元素扩散规律。采用显微硬度仪、摩擦磨损试验机、电化学工作站分别对样品的硬度、耐磨性能和耐蚀性能进行了表征。结果表明，不锈钢熔覆层由板条马氏体组成，越靠近熔覆层顶部，板条马氏体组织越细小。当激光功率为2 700?W时，熔覆层与基体的冶金结合最牢固，无空洞、裂纹等缺陷。在该参数下，熔覆层硬度提高最明显，并且具备最佳的耐磨和耐蚀性能。
Abstract:
Q235 steel is widely used in various fields for manufacturing various mechanical components, structural parts, etc. However, Q235 steel has lower performance in terms of hardness, wear resistance, and corrosion resistance, and the manufactured components and structural parts cannot serve in harsh environmental conditions. Laser cladding technology can deposit a layer of coating with excellent microstructure and properties on the surface of some key components, thereby improving the comprehensive performance of the component. This article mainly takes Q235 steel as the research object, and improves the microstructure and comprehensive performance of 17-4PH stainless steel cladding layer by changing the laser power of laser cladding, and then explores the optimal laser power parameters. The phase composition and microstructure of the cladding layer were studied using X-ray diffractometer, metallographic microscope, and scanning electron microscope, and the element diffusion law at the interface was analyzed using an energy spectrometer. The samples were tested for hardness, wear resistance, and corrosion resistance using a microhardness tester, friction and wear tester, and electrochemical workstation. The results show that the stainless steel cladding layer is composed of Flat noodles martensite. The closer to the top of the cladding layer, the finer the Flat noodles martensite structure is. When the laser power is 2 70 0?W, the metallurgical bond between the cladding layer and the substrate is the strongest, without defects such as voids and cracks. Under this parameter, the hardness of the cladding layer is significantly improved, and it has the best wear resistance and corrosion resistance

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更新日期/Last Update: 2026-01-16