所属单位：自动化学院
发表刊物：MATERIALS RESEARCH EXPRESS
关键字：magnetic field jet electrodeposition composite coating wear resistance
摘要：To improve the composite coating surface quality and performance, a magnetic-field-assisted method was used to manufacture Ni-SiC composite coating based on jet electrodeposition. The effect of different concentrations of SiC and the magnetic field on the surface morphology, microhardness, wear resistance, and corrosion resistance of the coating were investigated by (1) changing the content of nano-SiC particles in the bath, and (2) whether magnetic-field-assisted device was used. Results showed that adding nano-SiC can refine the coating grain size and reduce the surface roughness. The microhardness of the coating increased significantly from 442.65 HV to 514.03 HV for pure nickel coating, an increase of 16.12%; the microhardness increased to 542.76 HV with the introduction of a magnetic field. Magnetic field assistance can reduce cellular protrusions and improve flatness. The Ni-SiC coating wear resistance was strengthened with Magnetic-field-assisted, the wear mechanism changed from the fatigue wear to abrasive wear and adhesive wear. The corrosion resistance of Ni-SiC composite coating was also improved compared with pure Ni coating.
ISSN号：2053-1591
是否译文：否
发表时间：2018-09-01
合写作者：江伟,邱明波,徐铭阳,田宗军
第一作者：沈理达
通讯作者：沈理达