恒电位脉冲电沉积高锡青铜耐蚀镀层工艺研究

包任, 周根树, 李宏伟

Preparation of High-tin Bronze Corrosion-resistant Coating by Potentiostatic Pulse Electrodeposition

BAO Ren, ZHOU Genshu, LI Hongwei

表1 不同截面尺寸试样上不同脉冲方式电沉积膜层中的Sn含量

Table 1 Ccontents of Sn in the coatings electrodeposited on two samples in two pulse modes

Sample Mass of Sn in the coating / mg Mass of copper in the coating / mg Percent of Sn in the coating / % Constant-current pulse S=78.5 mm2 1.22 0.96 55.9 S=270 mm2 2.86 4.77 37.5 Potentiostatic pulse S=78.5 mm2 2.25 2.11 51.7 S=270 mm2 7.03 8.23 46.1