A re-understanding of the breakdown theory from the study of the plasma electrolytic oxidation of a carbon steel — A non-valve metal

2018 ◽  
Vol 284 ◽  
pp. 681-695 ◽  
Author(s):  
Zhi Li ◽  
Yulin Cheng ◽  
Shi-hang Kang ◽  
Wenbin Tu ◽  
Yingliang Cheng
2016 ◽  
Vol 307 ◽  
pp. 1315-1321 ◽  
Author(s):  
Jiankang Wang ◽  
Chunxiang Li ◽  
Zhongping Yao ◽  
Min Yang ◽  
Yajing Wang ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Chunsheng Ma ◽  
Jian Liu ◽  
Xinhe Zhu ◽  
Wenbin Xue ◽  
Zhijun Yan ◽  
...  

Abstract A corrosion-resistant non-crystalline coating was fabricated by plasma electrolytic oxidation (PEO) on Q235 low carbon steel for ship pipes. The distribution and composition of chemical elements and phases of PEO coatings were analyzed by an orthogonal experiment, and the formation mechanism of PEO coatings was discussed. The corrosion current densities and corrosion potentials were measured. The results indicated that the formation of a transition layer mainly containing Fe3O4 was crucial for achieving an excellent coating quality. Furthermore, the corrosion current density of coated steel was reduced by 78% compared with the bare steel.


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