【摘要】 以1070工业纯铝为阳极,Q235钢为阴极,置于AlCl3-NaCl-KCl三元无机熔盐中,150℃下电镀处理,获得了完整、均匀的镀层。并且研究了电流密度对镀层形貌的影响。经SEM和EDS分析表明,镀层主要成分是金属铝颗粒。SEM分析表明,在一定电镀时间下,随着电流密度的提高,膜层颗粒由粗大的树干状晶粒转变为不规则块状晶粒;当电流密度进一步增大时,膜层颗粒逐渐形成细小的球状晶粒。晶粒尺寸随着电流密度的提高而逐渐减小。更多还原

【Abstract】 The electrodeposited aluminum coating on Q235steel was obtained by electrodepositing in inorganic molten salt of AlCl3-NaCl-KCl with 1070aluminum as anode at 150℃,and influence of current density on surface morphology of aluminum coating was studied.The coating is integrated and well-distributed.The SEM and EDS analysis shows that the main component of the coating is aluminum particles.SEM analysis shows that,with increasing of current density,the trunk-shaped particles turn into irregular-shaped and then spherical-shaped particles gradually.The particle size is decreased with the increasing of current density.更多还原