海洋环境中铜绿假单胞菌对增材制造Al-Mg-Sc-Zr合金腐蚀行为影响研究

张俊男, 彭灿, 付琦, 张亮, 宋光铃

Influence of Pseudomonas Aeruginosa on Corrosion Behavior of Additively Manufactured Al-Mg-Sc-Zr Alloy in Marine Environment

ZHANG Junnan, PENG Can, FU Qi, ZHANG Liang, SONG Guangling

表1 Al-Mg-Sc-Zr合金在非生物和生物介质中EIS谱的电化学参数

Table 1 Electrochemical parameters derived from the EIS spectra for the Al-Mg-Sc-Zr alloy in the abiotic and biotic media

Condition t / d Rs / Ω·cm2 Qf / 10-6 S·cm-2·s n Rf / 103 Ω·cm2 Qdl / 10-6 S·cm-2·s n Rct / 103 Ω·cm2 Control 1 8.388 7.136 12.21 0.500 767.1 3 8.697 6.516 6.624 0.795 12360 5 8.741 7.168 5.129 1.088 998.6 7 8.425 9.302 6.481 0.875 485.3 10 8.702 15.17 3.384 0.826 614.9 14 8.664 14.59 2.380 1.000 1834 P. aeruginosa 1 7.523 11.35 33.30 1.348 42.66 3 8.014 9.817 0.0204 6.085 171.5 5 8.386 9.704 0.0345 6.827 243.6 7 8.292 9.527 0.0349 7.767 238 10 8.524 10.500 0.0442 8.158 386.6 14 8.485 12.55 0.0589 7.692 791.3