文献类型：期刊文献

英文题名：Study on the electrolytic seawater antifouling and passivation behaviour of titanium alloys

作者：Deng, Peichang[1,2,3];Liu, Dahai[4];Hu, Xin[4];Geng, Baoyu[4];Hu, Jiezhen[2,4];Liu, Wende[5]

机构：[1]Guangdong Ocean Univ, Coll Chem & Environm, Zhanjiang 524088, Peoples R China;[2]Zhanjiang Key Lab Corros & Protect Ocean Engn & Eq, Zhanjiang 524088, Peoples R China;[3]Guangdong Prov Ocean Equipment & Mfg Engn Technol, Zhanjiang 524088, Peoples R China;[4]Guangdong Ocean Univ, Coll Mech Engn, Zhanjiang 524088, Peoples R China;[5]Guangdong Ocean Univ, Coll Naval Architecture & Shipping, Zhanjiang 524088, Peoples R China

年份：2026

卷号：545

外文期刊名：ELECTROCHIMICA ACTA

收录：SCI-EXPANDED(收录号：WOS:001619406200002)、、WOS

基金：The authors were sincerely grateful for the financial support from the Natural Science Foundation of China (No. 51801033) , the Natural Sci-ence Foundation of Guangdong Province (No. 2021A1515012129) and the Innovation Team Project for Ordinary Universities in Guangdong Province (No.2024KCXTD041) .

语种：英文

外文关键词：TC4 titanium alloy; Electrolysis voltage; Antifouling; Passivation behaviour

外文摘要：Traditional electrolytic seawater antifouling technology relies heavily on chlorine-evolving electrodes to generate available chlorine for antifouling. In this study, TC4 titanium alloy is innovatively used as the electrode, and electrolysis is conducted at a potential lower than the chlorine evolution potential. The effect of voltage (0.2-1.0 V) on its antifouling and passivation behaviors is systematically investigated. The results show that with the increase of voltage, the antifouling effect and passivation degree of TC4 titanium alloy increase simultaneously: the mortality rate of surface microorganisms rises sharply from 33 % to 92 %, and the number of attached fouling organisms decreases gradually. The antifouling mechanism is attributed to the increase of oxidation-reduction potential (ORP) and the decrease of pH value, which inhibit the formation of biofilms and the physiological activities of organisms. Electrochemical impedance spectroscopy (EIS) shows that the polarization resistance (Rp) increases from 3.40 x 105 S2 cm2 to 8.42 x 108 S2 cm2, confirming the enhancement of its corrosion resistance. The above results indicate that by regulating appropriate electrolytic voltage parameters, the synergistic optimization of the corrosion resistance and antifouling performance of titanium alloy can be achieved.