Characteristics of high-performance anti-corrosion/anti-wear ceramic coatings on magnesium‑lithium alloy by plasma electrolytic oxidation surface engineering

2019 ◽  
Vol 375 ◽  
pp. 600-607 ◽  
Author(s):  
Zhijun Li ◽  
Qing Kuang ◽  
Xiuli Dong ◽  
Tongwei Yuan ◽  
Qinghui Ren ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
High Performance ◽  
Surface Engineering ◽  
Ceramic Coatings ◽  
Lithium Alloy ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Oxidation Surface

scholarly journals Plasma electrolytic oxidation technology for producing protective coatings of aluminum alloys

2021 ◽  
Vol 317 (2) ◽  
pp. 78-93
Author(s):  
G.B. Yeshmanova ◽  
◽  
D.U. Smagulov ◽  
C. Blawert ◽  
◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Plasma Electrolytic Oxidation ◽  
High Performance ◽  
Protective Coatings ◽  
Chemical Properties ◽  
High Hardness ◽  
Ceramic Coatings ◽  
Oxide Ceramic ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Today, the technology of hardening the surface layers of parts and the creation of protective coatings on the surface with high physical, mechanical and chemical properties is particularly effective. The article reviews the most promising innovative technologies for surface hardening of aluminum alloys – plasma electrolytic oxidation (PEO). Possible conditions and mechanisms for the formation of protective coatings on the surface of aluminum alloys are considered. The influence of the main parameters of PEO processing (electrical parameters, composition and concentration of electrolyte, the influence of alloying elements) on the structure and properties of oxide-ceramic coatings has been studied. The qualitative characteristics of the surface layer of samples and finished products made of aluminum alloys have shown the effectiveness of the PEO technology, which makes it possible to obtain ceramic coatings with high hardness, strength, increased wear and corrosion resistance. Possible areas of application of high-performance technologies for the deposition of protective PEO coatings on the surface of products made of aluminum alloys are proposed.

Plasma electrolytic oxidation ceramic coatings proceed by porous anodic film

2020 ◽  
Vol 812 ◽  
pp. 152098 ◽  
Author(s):  
Zhong Yang ◽  
Xu-zhen Zhang ◽  
Ye-kang Wu ◽  
Dong-dong Wang ◽  
Xin-tong Liu ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Ceramic Coatings ◽  
Anodic Film ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Growth characteristics of plasma electrolytic oxidation ceramic coatings on Ti–6Al–4V alloy

2008 ◽  
Vol 254 (13) ◽  
pp. 4084-4091 ◽  
Author(s):  
Zhongping Yao ◽  
Yanli Jiang ◽  
Fangzhou Jia ◽  
Zhaohua Jiang ◽  
Fuping Wang
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Ceramic Coatings ◽  
Growth Characteristics ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Simultaneous Reduction of Wear and Corrosion of Titanium, Magnesium and Zirconium Alloys by Surface Plasma Electrolytic Oxidation Treatment

2008 ◽  
Vol 38 ◽  
pp. 27-35 ◽  
Author(s):  
H.M. Nykyforchyn ◽  
V.S. Agarwala ◽  
M.D. Klapkiv ◽  
V.M. Posuvailo
Keyword(s):  
Corrosion Resistance ◽  
Plasma Electrolytic Oxidation ◽  
Synthesis Method ◽  
Zirconium Alloys ◽  
Ceramic Coatings ◽  
Oxide Ceramic ◽  
Wear And Corrosion ◽  
Electrolytic Oxidation ◽  
Wear And Corrosion Resistance ◽  
Plasma Electrolytic

Titanium, magnesium and zirconium alloys are widely used in industrial applications, which require high wear and corrosion resistance. However current methods of improving these properties often do not satisfy the requirements of service and functional properties. An alternative approach is the application of oxide-ceramic coatings using high temperature process. The coatings are applied by spark discharge plasma in the metal-electrolyte system at high voltages - PEO (plasma electrolytic oxidation) as an oxide synthesis method. This method has shown good results for aluminium alloys and with good prospects to be used for titanium, magnesium and zirconium alloys. Development of PEO technology to improve the wear and corrosion resistance of titanium, magnesium and zirconium alloys is discussed in this paper. It describes the methods for obtaining the required layer-thickness for a specified hardness, porosity, wear and corrosion resistance, sets up the optimal process parameters (voltage/current) by taking the relation of anodic to cathodic currents into account, and establishing the electrolyte content of different dopants.

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