摘要
为了解决65Mn钢表面耐磨性不足问题,采用激光熔覆方法在65Mn钢上制备了Fe60-WC复合涂层。分别通过SEM、EDS、XRD和磨损试验机对熔覆层显微组织、物相组成、显微硬度及摩擦磨损性能进行分析。研究结果表明,在WC含量为30%时弹性模量最大为338.57 GPa。熔覆层组织主要由细小的等轴晶、胞状晶和柱状晶组成。复合涂层物相增加了WC、W2C、Fe3W3C、Fe6W6C等强化相,并且熔覆层显微硬度随WC含量的增加而增加,在WC添加量为40%时,平均硬度值约为基体的3倍。随着WC含量的增加磨损体积先减小后增大,当WC含量为30%时熔覆层磨损体积为Fe60熔覆层68%。
To address the issue of inadequate wear resistance on the surface of 65Mn steel,a Fe60-WC composite coating was applied to 65Mn steel via laser cladding.The microstructure,phase composition,microhardness and friction and wear properties of the cladding layer were analyzed by SEM,EDS,XRD and wear tester.The results show that the maximum elastic modulus is 338.57GPa when the WC content is 30%.The microstructure of the cladding layer is mainly composed of fine equiaxed crystal,cellular crystal and columnar crystal.The strengthening phases,including WC,W2C,Fe3W3C,Fe6W6Care added in the phase of the composite coating.Meanwhile the microhardness of the cladding layer increases with the increasing of WC content.When the WC content is 40%,the average hardness is about three times of the matrix.With the increasing of WC content,the wear volume first decreases and then increases.When the WC content is 30%,the wear volume of the cladding layer is 68%of that of the Fe60cladding layer.
作者
李艳
王晨旭
江怡蔚
何静
唐冉
刘生龙
琚中毅
唐文健
冷静健
常发成
刘博鑫
刘秀清
王云龙
Li Yan;Wang Chenxu;Jiang Yiwei;He Jing;Tang Ran;Liu Shenglong;Ju Zhongyi;Tang Wenjian;Leng Jingjian;Chang Facheng;Liu Boxin;Liu Xiuqing;Wang Yunlong(School of Materials Science and Engineering,Jiangsu University,Jingjiang Coellege,Jiangsu University,Zhenjiang 212013,Jiangsu,China;Lianyungang Ruiyuan Agricultural Equipment Technology Co.,Ltd.Lianyungang 222299,Jiangsu,China;Jiangsu ChangHe Auto Parts Co.,Ltd.Lianyungang 222500,Jiangsu,China)
出处
《应用激光》
CSCD
北大核心
2024年第10期31-39,共9页
Applied Laser
基金
江苏省科技计划项目(SG-LYG114)
灌南县科技计划项目(GN202014)
2022年省级大学生江苏大学创新训练计划项目(202210299263H)
江苏大学2022年工业中心大学生创新实践基金项目(ZXJG2022003,ZXJG2022004)
江苏大学2022年大学生创新训练计划项目(H202210299376X)
江苏大学人工智能与智能制造学院大学生创新实践基金2023年度项目(ZXJG2023052)。
