Life prediction of copper-aluminium composite plate, based on electrical conductivity in a marine atmosphere

Cheng, Yingliang; Zuo, Xiaojiao; Yuan, Xiaoguang; Huang, Hongjun; Zhang, Yifan

doi:10.1016/j.engfailanal.2021.105299

Cited by 6 publications

(1 citation statement)

References 35 publications

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“…In the previous studies, the transformation of the salt spray equipment has been optimised, and salt spray accelerated corrosion tests have been realised under the energised state, initially revealing the influence mechanism of fixed current on the corrosion behaviour of copper-aluminium composites under the specified current state. [18][19][20][21] Despite these achievements, the differences between the effects of the two kinds of current on the corrosion mechanism of copper-aluminium composites have not been systematically explored. To sum up, in order to explore the mechanism of the effect of the service current on the corrosion behaviour of copper-aluminium composites, accelerated corrosion experiments on the composites were carried out at the condition of AC current and DC current energisation in the environment of 3 wt% neutral NaCl salt spray.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on mechanism of DC and AC current on corrosion of copper–aluminium composites

Cheng,

Zhang,

et al. 2024

Corrosion Engineering, Science and Technology: The Internationa

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In this study, corrosion behaviours accelerated by neutral salt spray were thoroughly investigated on copper–aluminium composites with 3 wt% concentration NaCl for 72 h under DC and AC current respectively. The similarities and differences of the corrosion mechanism of the copper–aluminium composite under the two kinds of current were analysed by weight loss analysis, scanning electron microscopy, energy-dispersive X-ray spectroscopy and electrochemical detection methods. It can be concluded that there are two opposing influences of the current on the corrosive effects, including acceleration by the impressed current and inhibition by the heating effect. Of these, the inhibition effect on corrosion is more obvious, as the thermal effect of DC current is greater under the same current value. It is worth noting that the directional migration of ions caused by DC current will affect the degree of corrosion and the composition of the corrosion products on the surfaces of both sides of the samples, which is a unique characteristic not seen with AC current.

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Section: Introductionmentioning

confidence: 99%