期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 936, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.168197
关键词
Sacrificial anode; Hydrostatic pressure; Intergranular corrosion; EIS
The corrosion and discharging behavior of Al-Zn-In-Mg-Ti alloy were studied at different pressures using various experimental techniques. The results showed that the self-corrosion and self-discharging process of the alloy went through three stages, all of which were accelerated by hydrostatic pressure. The discharging performance of the alloy decreased with increasing pressure due to the accelerated cathodic process and more severe intergranular corrosion. A corresponding cathodic protection design based on Al-Zn-In-Mg-Ti sacrificial anode with changing pressure was proposed, following an exponential function.
The corrosion and discharging behavior of Al-Zn-In-Mg-Ti alloy were studied at a series pressures ranged from 0.1 MPa to 13.0 MPa using weigh loss experiments, electrochemical techniques, and imaging mea-surements et al. Results reveal that the self-corrosion and self-discharging process of Al-Zn-In-Mg-Ti alloy live through the same three stages, which are all accelerated by hydrostatic pressure. The discharging performance of Al-Zn-In-Mg-Ti drops with increasing pressure, which is caused by the acceleration of cathodic process and severer intergranular corrosion. The corresponding cathodic protection design based on Al-Zn-In-Mg-Ti sacrificial anode with the changing pressure has been set up, which follows exponential function.(c) 2022 Elsevier B.V. All rights reserved.
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