•12•DOI:10.19289/j.1004-227x.2023.03.003电刷镀镍对30Cr13钢耐腐蚀和力学性能的影响贺秀丽1，马千钧1，梁红玉1,*，高源谷1，杨继红2，马增新21.太原工业学院机械工程系，山西太原0300082.山西互昇科技有限公司，山西晋中038300摘要：在30Cr13钢表面电刷镀镍以实现对钢构件的快速修复。采用扫描电子显微镜(SEM)和能谱仪(EDS)考察了电刷镀镍层的表面形貌和元素分布。通过动电位极化曲线测试、洛氏硬度测量及摩擦磨损试验对比了30Cr13钢电刷镀镍层前后的耐腐蚀性能和力学性能。结果表明，电刷镀镍层表面呈胞状结构，厚度可达20μm，与基体结合良好。与30Cr13钢基体相比，电刷镀镍层的腐蚀电位更正，腐蚀电流密度降低了1个数量级，即耐腐蚀性能更好。30Cr13钢和电刷镀镍层的洛氏硬度分别为34.09HRC和45.72HRC，电刷镀镍层的耐磨性比30Cr13钢好。关键词：马氏体不锈钢；电刷镀；镍；显微形貌；耐腐蚀性能；力学性能中图分类号：TG174.4文献标志码：A文章编号：1004–227X(2023)03–0012–05Effectofelectro-brushnickelplatingoncorrosionresistanceandmechanicalpropertyof30Cr13steelHEXiuli1,MAQianjun1,LIANGHongyu1,*,GAOYuangu1,YANGJihong2,MAZengxin21.DepartmentofMechanicalEngineering,TaiyuanInstituteofTechnology,Taiyuan030008,China2.ShanxiHushengTechnologyCo.,Ltd.,Jinzhong038300,ChinaAbstract:Electro-brushnickelplatingwasconductedonthesurfaceof30Cr13steelforrapidrepairingofsteelcomponent.Thesurfacemorphologyandelementaldistributionofelectro-brushplatedNicoatingwerecharacterizedbyscanningelectronmicroscopy(SEM)andenergy-dispersivespectroscopy(EDS).Thecorrosionresistanceandmechanicalpropertiesof30Cr13steelandNicoatingwerecomparedbypotentiodynamicpolarizationcurvemeasurement,Rockwellhardnessmeasurement,andfrictionandweartesting.Theresultsshowedthattheelectro-brushplatedNicoatingwaswell-adheredtothesubstrateandfeaturedacellularstructurewithathicknessupto20μm.ThecorrosionpotentialofNicoatingwasmorepositivethanthatof30Cr13steel,anditscorrosioncurrentdensitywasoneorderofmagnitudelowerthanthatof30Cr13steel,indicatingthatNicoatinghadbettercorrosionresistancethan30Cr13steel.TheRockwellhardnessof30Cr13steelandelectro-brushplatedNicoatingwas34.09HRCand45...
