Corrosion electrochemistry properties of thermally sprayed Zn–Cu–Ti coating in simulated ocean atmosphere

Weiyi Zhang; Ti Zhang; Zongxiu Zhu; Xinfeng Wang; Jiqiu Qi; Ya Ni; Qingkun Meng; Yanwei Sui; Fuxiang Wei; Yaojian Ren; Yanqing Wang; Lei Zhu

Journal of Materials Research and Technology (Nov 2022)

Corrosion electrochemistry properties of thermally sprayed Zn–Cu–Ti coating in simulated ocean atmosphere

Weiyi Zhang,
Ti Zhang,
Zongxiu Zhu,
Xinfeng Wang,
Jiqiu Qi,
Ya Ni,
Qingkun Meng,
Yanwei Sui,
Fuxiang Wei,
Yaojian Ren,
Yanqing Wang,
Lei Zhu

Affiliations

Weiyi Zhang: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Ti Zhang: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Zongxiu Zhu: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Xinfeng Wang: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Jiqiu Qi: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China; Corresponding author.
Ya Ni: Jiangsu CUMT Dazheng Surface Engineering Technology CO, LTD, Xuzhou 221116, People's Republic of China; Corresponding author.
Qingkun Meng: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Yanwei Sui: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Fuxiang Wei: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Yaojian Ren: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
Yanqing Wang: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China; Corresponding author.
Lei Zhu: Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments, School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, People's Republic of China

Journal volume & issue: Vol. 21
pp. 3235 – 3247

Abstract

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The electrochemical behavior of thermally sprayed Zn–Cu–Ti coating corroded in 3.5 wt% NaCl neutral salt spray for different days was investigated by electrochemical measurements. Electrochemical investigation shows that pitting corrosion occurs on the coating. Sacrificial anode protection and corrosion product protection play a dominant role. Coating corrosion can be divided into five stages: dissolution of surface oxides, deposition of corrosion products, stable dissolution of the coating, formation and development of occluded cell corrosion, and accelerated corrosion stage. The degradation mechanism and the role of galvanic protection of coating have been discussed by a proposed corrosion model.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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