Ti80合金与船用金属的电偶腐蚀行为研究

方焕杰, 周鹏, 郁健浩, 王永欣, 于波, 蒲吉斌

Galvanic Corrosion Behavior of Coupling Pairs of Ti80 Alloy with Various Marine Metallic Materials

FANG Huanjie, ZHOU Peng, YU Jianhao, WANG Yongxin, YU Bo, PU Jibin

表2 921A、B10、6061和40Cr与Ti80偶接前后的EIS拟合数据

Table 2 Fitting data of EIS of 921A, B10, 6061 and 40Cr alloys before and after coupling with Ti80 alloy

Sample Rs / Ω·cm2 CPE1 / μF·cm-2 n1 Rf / Ω·cm2 CPE2 / μF·cm-2 n2 Rct / Ω·cm2 W / Ω-1·s1/2 921A 9.947 6.485 × 10-4 0.7609 16.99 2.590 × 10-4 0.8447 4.471 × 103 - 921A/Ti80 8.998 1.652 × 10-3 0.8466 2.610 × 103 9.897 × 10-4 0.7122 2.355 × 102 - B10 8.847 8.330 × 10-4 1.0000 4.920 × 104 1.894 × 10-5 0.9003 1.787 × 104 1.761 × 10-5 B10/Ti80 6.714 9.846 × 10-5 0.8709 9.242 × 103 4.785 × 10-5 0.8713 3.752 × 103 - 6061 2.572 3.381 × 10-5 0.9326 2.174 × 103 2.596 × 10-3 0.7065 3.196 × 102 - 6061/Ti80 3.561 8.399 × 10-5 0.8376 3.368 × 103 5.552 × 10-5 0.9031 2.959 × 102 - 40Cr 8.334 2.582 × 10-3 1.0000 1.766 × 102 1.000 × 10-3 0.7858 2.406 × 103 - 40Cr/Ti80 12.050 1.273 × 10-3 0.7593 2.130 × 103 1.681 × 10-3 0.9887 4.001 × 102 -