工艺参数对铁基和镍基粉末涂层性能的影响  

The influence of process parameters on coating performance of Ni based and Fe based cladding layer

作　　者：于天彪[1] 韩继标 乔若真 陈辽原 黎柏春 陈亚东[2] YU Tian-biao;HAN Ji-biao;QIAO Ruo-zhen;CHEN Liao-yuan;LI Bai-chun;CHEN Ya-dong(School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819,China;School of Sino-Dutch Biomedical and Information Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110819 [2]东北大学中荷生物医学与信息工程学院,辽宁沈阳110819

出　　处：《激光与红外》2019年第7期801-807,共7页Laser & Infrared

基　　金：国家工信部绿色系统集成重大专项(No.201675514);沈阳市科技计划项目(No.18006001);国家自然科学基金项目(No.51505075)资助

摘　　要：利用激光熔覆技术分别对Fe105和Ni60合金粉末进行单层单因素实验。采用OLS41003D激光显微镜测量了熔道截面形貌、尺寸及组织;利用显微硬度仪测量了Fe105和Ni60涂层的显微硬度。结果表明,功率对Fe105和Ni60合金粉末熔宽、熔深和熔高的影响呈正相关;扫描速度对熔道熔高、熔宽和熔深呈负相关;随着送粉量增加,熔高增加,熔深下降。与Ni60显微组织图相比,Fe105合金粉末的晶体排列更规则,晶粒细小;Fe105与Ni60涂层平均显微硬度都高于484.63HV,Fe105涂层显微硬度总体略高于Ni60涂层。Utilizing the laser cladding technology,Single-layer and single-factor experiments of Fe105 and Ni60 were carried out.The cross-section morphology,size and microstructure of laser clad track were measured by OLS 41003D laser microscope.The microhardness is measured by microhardness machinery.The results indicated that the power has a positive effect on the melting width,depth and height of Fe105 and Ni60 coatings;the scanning speed has a negative effect on the melting height,depth and width;with the increase of powder feeding rate the melting height increased,while the depth has an opposite tendency.Compared with the microstructures of Ni60,the microstructure of Fe105 coating is more regular,the grain is more refine.The all mean microhardness value of the Ni60 and Fe105 coating is higher than 484.63HV,and the total microhardness of Fe105 coating is narrowly higher than Ni60 coating.

关 键 词：激光熔覆 单因素实验 试样形貌 显微组织 显微硬度 

分 类 号：TN249[电子电信—物理电子学]