Cr含量对Cu合金表面Ni/Ni-Cr/Ni-Cr-Al-Si膜层耐蚀性的影响

温佳源, 宋贵宏, 韦小园, 赵鑫, 吴玉胜, 杜昊, 贺春林

Influence of Cr Content on Corrosion Resistance of Composite Ni/Ni-Cr/Ni-Cr-Al-Si Films on Cu

WEN Jiayuan, SONG Guihong, WEI Xiaoyuan, ZHAO Xin, WU Yusheng, DU Hao, HE Chunlin

表2 复合膜层等效电路及标准腐蚀参数的EIS数据

Table 2 EIS data corresponding equivalent circuit and standard parameters of the composite films

Sample RsΩ·cm2 Q1μF·cm-2 nc RcΩ·cm2 Q2μF·cm-2 nt RfΩ·cm2 S1 6.948 2.056×10-5 0.8487 10.5 4.769×10-5 0.8691 1.445×104 S2 6.433 8.499×10-5 0.8448 66.93 3.359×10-5 0.9289 5.547×104 S3 4.963 2.481×10-4 0.8366 28.08 6.782×10-3 1 1516 S4 5.671 1.096×10-4 0.8649 26.64 5.491×10-3 1 392.5