Al2O3-ZrO2添加量对激光熔覆Ni60基复合涂层组织与耐磨性能的影响

李浩瑜¹, 郑佳豪¹, 崔宇航¹, 任一丹¹, 王若名¹, 李建辉¹, 王玉江²

1. 河北科技大学材料科学与工程学院
2. 陆军装甲兵学院
通信作者: 崔宇航 (1994-), 博士, 讲师, 研究领域: 先进材料表面防护, E-mail: cuiyuhang@hebust.edu.cn
李建辉 (1979-), 博士, 教授, 研究领域: 先进金属材料制备与表面改性技术, E-mail: lijianhui_97@163.com

Effect of Al₂O₃-ZrO₂ Addition on the Microstructure and Wear Resistance of Laser-Cladded Ni60-Based Composite Coatings

LI Haoyu¹, ZHENG Jiahao¹, CUI Yuhang¹, REN Yidan¹, WANG Ruoming¹, LI Jianhui¹, WANG Yujiang²

1. School of Materials Science and Engineering, Hebei University of Science and Technology
2. Army Academy of Armored Forces
Corresponding Author: CUI Yuhang (1994-), Ph.D., Lecturer, Research Focus: Surface Protection of Advanced Materials, E-mail: cuiyuhang@hebust.edu.cn
LI Jianhui (1979-), Ph.D., Professor, Research Focus: Fabrication of Advanced Metallic Materials and Surface Modification Technology, E-mail: lijianhui_97@163.com

文章历史: 收稿日期: 2026-06-10

摘    要
工程零部件表面在摩擦磨损工况下易发生磨损失效，为提高其耐磨性能，采用激光熔覆制备不同质量分数Al₂O₃-ZrO₂的Ni60基复合涂层，系统研究陶瓷添加量对涂层组织结构和摩擦磨损性能的影响。通过XRD、SEM等表征涂层组织，测试显微硬度与摩擦磨损性能，探究成分、涂层组织与力学性能之间的关联规律。研究发现，涂层主要由 (Fe,Ni) 固溶体和Cr₂₃C₆、Al₂O₃等相组成，其中Ni60⁃10%(Al₂O₃-ZrO₂) 涂层中 (Fe,Ni) 固溶体由FCC向BCC结构转变。随着Al₂O₃-ZrO₂添加量增加，涂层组织逐渐细化。但当添加量达到15％时，涂层的组织均匀性下降。涂层表面平均硬度随添加量增加呈先降低后升高再降低的趋势，添加量为10％时涂层硬度最高 (623.3 HV_0.5)，强化机制为细晶强化与弥散强化；耐磨性能最佳，磨损率为1.163×10^-5 mm³/(N·m)，磨损机制为磨粒磨损和氧化磨损。

Abstract
The surfaces of engineering components are prone to wear failure under friction and wear conditions. To improve their wear resistance, Ni60-based composite coatings with different Al₂O₃-ZrO₂ additions were prepared by laser cladding, and the effects of ceramic content on the microstructure and tribological properties of the coatings were systematically investigated. The microstructure of the coatings was characterized by XRD and SEM, while the microhardness and friction-wear properties were tested to reveal the relationships among composition, coating microstructure, and mechanical properties. The results showed that the coatings were mainly composed of (Fe,Ni) solid solution, Cr₂₃C₆, and Al₂O₃ phases. In the Ni60-10％(Al₂O₃-ZrO₂) coating, the (Fe,Ni) solid solution underwent a structural transformation from FCC to BCC. With increasing Al₂O₃-ZrO₂ content, the coating microstructure was gradually refined; however, when the addition reached 15％, the microstructural uniformity of the coating decreased. The coating hardness first decreased, then increased, and finally decreased with increasing ceramic content. The coating with 10％Al₂O₃-ZrO₂ exhibited the highest average surface hardness of 623.3 HV_0.5, mainly owing to grain refinement strengthening and dispersion strengthening. This coating also showed the best wear resistance, with a wear rate of 1.163×10^-5 mm³/(N·m), and its wear mechanism was mainly abrasive wear and oxidative wear.

关键词
激光熔覆; Ni60; Al₂O₃-ZrO₂; 显微硬度; 耐磨性能

Keywords
laser cladding; Ni60; Al₂O₃-ZrO₂; microhardness; wear resistance

引用文本
李浩瑜, 郑佳豪, 崔宇航, 等. Al2O3-ZrO2添加量对激光熔覆Ni60基复合涂层组织与耐磨性能的影响[J]. 表面工程与再制造, 2026, 26(4): 1-11. DOI:10.26935/j.issn.2097-5317.2026.0019.

LI Haoyu, ZHENG Jiahao, CUI Yuhang, et al. Effect of Al₂O₃-ZrO₂ Addition on the Microstructure and Wear Resistance of Laser-Cladded Ni60-Based Composite Coatings[J]. Surface Engineering & Remanufacturing, 2026, 26(4): 1-11. DOI:10.26935/j.issn.2097-5317.2026.0019.

中图分类号
TG174.4; TG665

基金项目
GF科技重点实验室基金 (61420052024KJW03); 中央引导地方科技发展资金项目 (264Z1032G); 河北省高等学校科学研究项目 (CXZX2026025)

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