摘要
采用喷射电沉积法,以不同喷射参数在Q235钢表面制备Ni-TiN纳米镀层,并综合正交试验、Fluent软件对镀液喷射过程仿真模拟结果,得到制备Ni-TiN纳米镀层的最佳喷射参数组合。通过扫描电镜(SEM)、X射线衍射仪(XRD)、电化学工作站、摩擦磨损试验机等设备,观察分析镀层显微组织结构、测试镀层耐腐蚀与耐磨性,通过与仿真结果进行比对,验证仿真结果的准确性。结果表明:5#试样制备参数最佳,其参数是喷嘴出口直径为6 mm,喷嘴收缩角为45°,喷射压力为8 MPa;试样表面平整光滑、镀层结构致密,几乎无空隙,耐磨及耐腐蚀性能皆较强。
Ni-TiN nanocoating was prepared on the surface of Q235 steel by jet electrodeposition with different process parameters. Based on the orthogonal test and Fluent software simulation results of the plating bath injection process,the optimal injection parameters combination for the preparation of Ni-TiN nanocoating were obtained. The microstructure of the coating was observed and analyzed by scanning electron microscope(SEM),and X-ray diffraction(XRD). In addition,the corrosion resistance and wear resistance of coating were tested by electrochemical workstation and wear testing machine. Then the accuracy of simulation results was verified by comparing with the simulation results. The results show that the preparation parameters of No.5 sample are the best,which are the nozzle outlet diameter of 6 mm,the nozzle contraction angle of 45° and the injection pressure of 8 MPa. Besides,the surface of No.5 sample is flat and smooth,the coating has a compact structure and few voids,and the wear resistance and corrosion resistance are both excellent.
作者
卢佳欣
孟庆武
LU Jiaxin;MENG Qingwu(College of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2021年第3期7-13,共7页
Ordnance Material Science and Engineering
基金
国家自然科学基金(51974089)。
关键词
喷射电沉积
纳米镀层
显微组织
工艺参数
仿真
jet electrodeposition
nanocoating
process parameters
microstructure
simulation
