Properties of micro-arc oxidation coatings on aluminum alloy at different negative peak current densities

2018 ◽  
Vol 5 (5) ◽  
pp. 056522 ◽  
Author(s):  
Xin Gu ◽  
Bailing Jiang ◽  
Hongtao Li ◽  
Cancan Liu ◽  
Lianlian Shao
Keyword(s):  
Aluminum Alloy ◽  
Peak Current ◽  
Negative Peak ◽  
Micro Arc Oxidation ◽  
Current Densities

Effect of Sealing Treatments on the Corrosion Behavior of Micro-arc Oxidation Coating on Aluminum Alloy in Acid NaCl Solution

2015 ◽  
Vol 30 (6) ◽  
pp. 627
Author(s):  
YE Zuo-Yan ◽  
LIU Dao-Xin ◽  
LI Chong-Yang ◽  
ZHANG Xiao-Hua ◽  
ZANG Xiao-Ming ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Behavior ◽  
Nacl Solution ◽  
Micro Arc Oxidation

The preparation and properties of black coating by micro arc oxidation on 2A12 aluminum alloy

2019 ◽  
Vol 236 ◽  
pp. 723-726 ◽  
Author(s):  
Chunyan Du ◽  
Hui Zhao ◽  
Zhiyong Dai ◽  
Zhiyu Tian ◽  
Jinchuan Wang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Black Coating ◽  
Micro Arc Oxidation

Annealed high band gap tunnel junctions with peak current densities above 800 A/cm2

2016 ◽  
Author(s):  
Salah M. Bedair ◽  
Jeffrey L. Harmon ◽  
C. Zachary Carlin ◽  
Islam E. Hashem Sayed ◽  
P. C. Colter
Keyword(s):  
Band Gap ◽  
Tunnel Junctions ◽  
Peak Current ◽  
Current Densities ◽  
High Band

A Study of Micro-Arc Oxidation Coatings on Aluminum Alloy Drill Pipe for Offshore Platform

2017 ◽  
Vol 51 (3) ◽  
pp. 16-22 ◽  
Author(s):  
Yan Shen ◽  
Prasanta K. Sahoo ◽  
Yipeng Pan
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Experimental Work ◽  
Structural Characteristics ◽  
Drill Pipe ◽  
Offshore Platform ◽  
Cathode Voltage ◽  
Micro Arc Oxidation ◽  
Anticorrosion Performance

AbstractIn order to enhance the corrosion resistance of a drill pipe for an offshore platform, micro-arc oxidation (MAO) coatings were deposited on the surface of an aluminum alloy drill pipe by MAO technology. The microstructure and anticorrosion performance of the MAO coatings were investigated experimentally. This paper mainly focuses on the experimental work to determine the influence of cathode voltage on the structural characteristics and corrosion resistance of MAO coatings. The results show that the cathode voltage has a significant effect on the preparation of MAO coating during the process. The surface of the coating becomes more compact and smooth with the increase of the cathode voltage. Furthermore, the anticorrosion performance of MAO coatings can effectively be improved with the increase of cathode voltage.

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