CLC number:
On-line Access: 2023-08-11
Received: 2023-03-24
Revision Accepted: 2023-07-31
Crosschecked: 0000-00-00
Cited: 0
Clicked: 532
Peihu SHEN, Jun WEN, Biqin DONG, Hedong LI, Minjia WANG. Corrosion behavior and protection mechanism of carbon steel coated with ECTFE[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2300157
@article{title="Corrosion behavior and protection mechanism of carbon steel coated with ECTFE",
author="Peihu SHEN, Jun WEN, Biqin DONG, Hedong LI, Minjia WANG",
journal="Journal of Zhejiang University Science A",
year="in press",
publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/jzus.A2300157"
}
%0 Journal Article
%T Corrosion behavior and protection mechanism of carbon steel coated with ECTFE
%A Peihu SHEN
%A Jun WEN
%A Biqin DONG
%A Hedong LI
%A Minjia WANG
%J Journal of Zhejiang University SCIENCE A
%P
%@ 1673-565X
%D in press
%I Zhejiang University Press & Springer
doi="https://doi.org/10.1631/jzus.A2300157"
TY - JOUR
T1 - Corrosion behavior and protection mechanism of carbon steel coated with ECTFE
A1 - Peihu SHEN
A1 - Jun WEN
A1 - Biqin DONG
A1 - Hedong LI
A1 - Minjia WANG
J0 - Journal of Zhejiang University Science A
SP -
EP -
%@ 1673-565X
Y1 - in press
PB - Zhejiang University Press & Springer
ER -
doi="https://doi.org/10.1631/jzus.A2300157"
Abstract: Ethylene chlorotrifluoroethylene (ECTFE) coating was applied to the surface of carbon steel through electrostatic spraying and low-temperature heat treatment. The morphology and structure of the coating were analyzed using various characterization techniques. The electrochemical data of the coated steel soaked in 3.5wt.%NaCl solution for 90 days at different periods were also examined. The findings indicate that the outer surface of the coating remains structurally stable before and after soaking. F can diffuse into the steel substrate, facilitating the bonding between the coating and the steel substrate but the free F also induces a weakening effect on the crystalline structure. Due to the thickness of the coating edge and the susceptibility to infiltration of the corrosive medium, under-film micro-zone corrosion occurs at a slow rate. After soaking for 90 days, the impedance modulus measures approximately 104 Ω·cm2, and the open circuit potential (OCP) is −0.61 V. The self-corrosion current density is 1.13×10-6 A·cm-2, resulting in a calculated coating protection rate of 99.29%. In summary, despite edge corrosion occurring, the ECTFE coating provides excellent corrosion protection.
Open peer comments: Debate/Discuss/Question/Opinion
<1>