文献类型：期刊文献

中文题名：添加CeO_(2)对激光熔覆AlCoCrFeNi-TiC_(5)/WC_(15)涂层性能提升的研究

英文题名：Study on Laser Cladding Performance Improvement of AlCoCrFeNi-TiC_(5)/WC_(15)Coating by Adding CeO_(2)

作者：朱志凯[1];陈丰林[1];梁飞龙[3,4];师文庆[2,3];赵阳[1];黄江[1]

机构：[1]广东海洋大学电子与信息工程学院,广东湛江524088;[2]广东海洋大学材料科学与工程学院,广东阳江529500;[3]广东海洋大学广东省南海海洋牧场智能装备重点实验室,广东湛江524088;[4]广东海洋大学船舶与海运学院,广东湛江524005

年份：2025

卷号：62

期号：3

起止页码：265

中文期刊名：激光与光电子学进展

外文期刊名：Laser & Optoelectronics Progress

收录：北大核心2023、、ESCI(收录号：WOS:001439077500019)、WOS、北大核心

基金：国家自然科学基金(62073089);广东海洋大学激光加工创新团队项目(CCTD201823);广东海洋大学大学生创新创业训练计划项目(CXXL2023168)。

语种：中文

中文关键词：激光熔覆;高熵合金;耐磨性;耐腐蚀性;稀土粉末

外文关键词：laser cladding;high-entropy alloys;wear resistance;corrosion resistance;rare earth powder

中文摘要：采用激光熔覆技术在基于316L基材制备的AlCoCrFeNi-TiC_(5)/WC_(15)高熵合金涂层中添加微量的氧化铈(CeO_(2))粉末,探究了加入CeO_(2)粉末后,涂层的耐磨性以及在不同环境下的耐腐蚀性,使用扫描电子显微镜、X射线衍射仪、显微硬度计、摩擦磨损试验机、电化学工作站等仪器来表征涂层和检测其性能。研究结果表明:熔覆涂层能够形成多种形状的微观组织结构,如花状、胞状、葡萄状枝晶组织等,这些组织结构为熔覆层体心立方、面心立方等物相的生成打下了形貌基础,一定程度上促进了晶粒细化,提升了涂层的硬度,在添加质量分数为2.0%的CeO_(2)粉末后熔覆层硬度达到最大,最大维氏硬度为702.5 HV;在摩擦磨损实验方面,对比磨损量和摩擦系数,发现添加质量分数为2.0%的CeO_(2)粉末后的熔覆层耐磨性最好;在耐腐蚀性能方面,通过对比涂层在质量分数为3.5%NaCl溶液、浓度为1 mol/L的NaOH溶液、浓度为1 mol/L的H2SO4溶液中的电化学腐蚀性能,可以判断在AlCoCrFeNi-TiC_(5)/WC_(15)涂层的基础上添加质量分数为2.0%的CeO_(2)粉末后,熔覆层的耐腐蚀性能最佳。

外文摘要：A small amount of CeO_(2)powder is added to AlCoCrFeNi-TiC_(5)/WC_(15)high-entropy alloy coating prepared on 316L substrate using laser cladding technology.After the addition of CeO_(2)powder,the wear and corrosion resistances of the coating are investigated under different environments.Scanning electron microscope,X-ray diffractometer(XRD),microhardness tester,friction and wear testing machine,electrochemical workstation,and other instruments are used to characterize the coating and test its performance.The research results show that cladding coating can form a variety of shapes of microstructure,such as flower,cellular,grape dendritic structure,etc.,whereby the discovery of these microstructures provides a morphological basis for the formation of body-centered cubic(BCC),face-centered cubic(FCC),and other phases of cladding,which to a certain extent promote grain refining and improve the hardness of the coating.By addition of 2.0%CeO_(2)mass fraction of the cladding layer,the maximum hardness is attained,and the maximum Vickers hardness is 702.5 HV;in comparing the wear amount and friction coefficient,the coating with 2.0%CeO_(2)is found to provide the best wear resistance.In terms of corrosion resistance,the electrochemical corrosion performance of coatings in 3.5%NaCl solution,1 mol/L NaOH solution,and 1 mol/L H2SO4 solution are compared,thereby finding that adding 2.0%CeO_(2)to the base AlCoCrFeNi-TiC_(5)/WC_(15)coating provides the best corrosion resistance of the cladding layer.