摘要： 考察了冷喷涂  Cu-Cu₂O防污涂层在不同溶解氧及盐度海水中的铜渗出率。 实验结果表明：涂层总铜渗出率由两部分组成，分别为铜金属的电化学溶解和氧化亚铜的化学溶解。 海水溶解氧的增加，利于铜金属的电化学溶解及涂层总铜渗出率的增大，同时抑制了氧化亚铜的溶解，但这种抑制作用弱于对铜金属的腐蚀促进作用。 海水盐度的升高，利于铜金属的电化学溶解，且促进氧化亚铜的溶解，使涂层总铜渗出率增大。 随着浸泡时间延长，由于难溶产物的积累，涂层总铜渗出率降低。氧化亚铜的渗出率贡献比随其含量增加、溶解氧降低、盐度增加或浸泡时间延长而增加。

关键词: 材料加工工程；  , Cu-Cu₂O涂层； 冷喷涂技术； 铜离子渗出率； 防污

Abstract: The copper leaching rate of cold spray Cu-Cu₂O antifouling coatings in seawater having different dissolved oxygen and salinity was studied. The experimental results showed that total copper leaching rate was composed of two parts (i.e. electrochemical dissolution of copper and chemical dissolution of cuprous oxide). The increase in dissolved oxygen promoted the electrochemical dissolution of copper and the increase of total copper leaching rate,while inhibited the dissolution of cuprous oxide wherein the inhibition did not outdo the promotion effect on electrochemical dissolution of copper. The increase in salinity raised electrochemical dissolution of copper and dissolution of cuprous oxide, resulting in araise of total copper leaching rate. As the immersion time increased due to the accumulation of insoluble products,the total copper leaching rate decreased. The leaching rate contribution ratio of cuprous oxide raised with the increase of its content as well as salinity and immersion time, and with the decrease of dissolved oxygen.

Key words: materials processing engineering, Cu-Cu₂O coating；cold spray, copper leaching rate, antifouling