一种组合添加剂在碱性无氰镀锌中的作用

中国腐蚀与防护学报, 2012, 32(3): 251-255.

一种组合添加剂在碱性无氰镀锌中的作用

1.1. 南昌航空大学轻合金加工科学与技术国防重点学科实验室南昌 3300632. 南京机电液压工程研究中心南京 211106>

1.1.National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology Institute,Nanchang Hangkong University, Nanchang 3300632. Nanjing Engineering Center of Aircraft Systems, Nanjing 211106>

基金项目: 江西省教育厅2011年度重点科技项目(GJJ11023)资助

关键词：纳米镀锌 , additive , morphology , synergistic effect

FUNCTION OF A COMBINATORIAL ADDITIVE ON ALKALINE NON-CYANIDE ZINC PLATING

DU Nan , SHU Weifa , WANG Chunxia , WANG Shuaixing , CHEN Qinglong

Keywords： nano-zinc electroplating , 添加剂 , 形貌 , 协同作用

通过在碱性无氰镀锌溶液中添加一种组合添加剂获得了晶粒尺寸在60nm以内的纳米晶镀锌层，并通过对比有无添加剂时Zn的析出电位、镀锌层微观形貌及晶粒度的差异，分析了组合添加剂中两种组分的作用。结果表明，两种添加剂分别起到细化晶粒和整平作用，二者一起使用有很强的协调作用。

The nanocrystalline zinc coating which the grain size was within 60 nm was obtained when a combinatorial additive was added to alkaline non-cyanide bath. Besides, the role of two components of combinatorial additive was analyzed through comparing the differences with deposition potential、morphology and grain size of zinc coatings which were obtained in the bath contained additives or not. The results showed that the additive A played a role of grain refinement, the additive B played a role of leveling, and a strong synergistic effect was existed when both A and B was used.

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