Study on Scanning Micro-arc Oxidation Technology Applied to 2024 Aluminum Alloy

2013 ◽  
Vol 28 (4) ◽  
pp. 381-386
Author(s):  
Peng-Xiang LÜ ◽  
Dong-Bo WEI ◽  
Cheng-Bo GUO ◽  
Zhao-Long LI ◽  
Shi-Chun DI
Keyword(s):  
Aluminum Alloy ◽  
2024 Aluminum Alloy ◽  
Micro Arc Oxidation ◽  
Oxidation Technology

Effects of polyvinylidene fluoride sealing on micro-arc oxidation coating of 7075 aluminum alloy

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
J. Li ◽  
R.G. Song ◽  
X. Qi ◽  
C. Wang ◽  
B. Jiang
Keyword(s):  
Aluminum Alloy ◽  
Polyvinylidene Fluoride ◽  
Microarc Oxidation ◽  
Pvdf Film ◽  
7075 Aluminum Alloy ◽  
Alloy Matrix ◽  
Content Type ◽  
Micro Arc Oxidation ◽  
Oxidation Technology ◽  
And Performance

Purpose The purpose of this is to study the effects of organic sealing on the structure and performance of the micro-arc oxidation (MAO) film of 7075 aluminum alloy. Design/methodology/approach The 7075 aluminum alloy was treated by micro-arc oxidation technology, then the MAO films were sealed by polyvinylidene fluoride (PVDF) solutions with different concentrations to forms a MAO/PVDF composite coating on the surface of the 7075 aluminum alloy matrix. Findings The results show that the MAO/PVDF film thickness increased to 24.8 um. When the PVDF concentration was 8 g/L, and the sealed film reached best corrosion resistance and wear resistance. Originality/value The effects of different concentrations of PVDF on microarc oxidation properties of 7075 aluminum alloy were studied.

Ceramic Surface Treatment of Aluminum Alloy

2020 ◽  
Vol 837 ◽  
pp. 46-50
Author(s):  
Zhi Yang Liu ◽  
Guo Feng Ma
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Surface Treatment ◽  
Ceramic Surface ◽  
Development Direction ◽  
Micro Arc Oxidation ◽  
Important Means ◽  
Oxidation Technology ◽  
Mechanical Properties And Corrosion

The ceramic surface treatment of aluminum alloy is an important means to improve the mechanical properties and corrosion resistance of aluminum alloy.This paper focuses on the process and research status of aluminum alloy anodic oxidation technology and aluminum alloy micro-arc oxidation technology and analyzes the future development direction.

Effect of Nano-MoS2 Particles on Properties of Micro-Arc Oxidation Coating Prepared on the Surface of Aluminum Alloy Drill Pipe for Offshore Platform

2016 ◽  
Author(s):  
Yipeng Pan ◽  
Yan Shen ◽  
Prasanta K. Sahoo
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Ceramic Membrane ◽  
Drill Pipe ◽  
Offshore Platform ◽  
Nano Particles ◽  
Micro Arc Oxidation ◽  
Oxidation Technology ◽  
Micro Morphology ◽  
Addition Amount

In order to improve the corrosion resistance of the drill pipe, the alumina ceramic membrane is coated on the surface of aluminum alloy drill pipe of offshore platform by micro arc oxidation technology. This paper mainly focuses on the experimental work to determine the effect of the nano-MoS2 content in the solution on the micro morphology, element content and corrosion resistance of the coating. The results show that the amount of nano-MoS2 particles has big influence on the making of micro-arc oxidation (MAO). The thickness of MAO coating is increased with the adding of nano-MoS2 particles. Besides, the size of the coating is first increased then decreased, and the surface of coating become more compact and smooth with the increase of the amount of nano-MoS2 particles. Also, the corrosion resistance of MAO coating is improved as the amount of MoS2 increases. The corrosion rate is decreased from 0.032g.m−2.h−1 to 0.024g.m−2.h−1 when the addition amount of nano-particles increased from 0.5g/L to 2g/L.

TRIBOLOGICAL BEHAVIORS OF DUPLEX DLC/Al2O3 COATINGS FABRICATED USING MICRO-ARC OXIDATION AND FILTERED CATHODIC VACUUM ARC SYSTEM

2007 ◽  
Vol 14 (02) ◽  
pp. 193-197 ◽  
Author(s):  
X. L. WU ◽  
X. J. LI ◽  
X. ZHANG ◽  
W. B. XUE ◽  
G. A. CHENG ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Carbon Film ◽  
Metal Vapor ◽  
Vacuum Arc ◽  
Low Friction ◽  
2024 Aluminum Alloy ◽  
Alumina Layer ◽  
Tetrahedral Amorphous Carbon ◽  
Micro Arc Oxidation ◽  
Filtered Cathodic Vacuum Arc

Micro-arc oxidation technique (MAO) treatment produces a layer of alumina film on the surface of the aluminum alloy. A hard and uniform tetrahedral amorphous carbon film (diamond-like carbon, DLC) was deposited on the top of the alumina layer of the 2024 aluminum alloy by a pulsed filtered catholic vacuum arc (FCVA) deposition system with a metal vapor vacuum arc (MEVVA) source. The morphology and tribological properties of the duplex DLC/ Al 2 O 3 coating were investigated by a scanning electron microscope (SEM) and a ball-on-disk sliding tester. These results suggested that the duplex DLC/ Al 2 O 3 coating had good adhesion and a low friction coefficient, which improved significantly the wear resistance of aluminum alloys.

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

Microstructure Examination of Electromagnetic Casting 2024 Aluminum Alloy Ingots

2007 ◽  
Vol 44 (6) ◽  
pp. 290-298 ◽  
Author(s):  
Aleksandra Pataric ◽  
Zvonko Gulisija ◽  
Srdjan Markovic
Keyword(s):  
Aluminum Alloy ◽  
2024 Aluminum Alloy ◽  
Electromagnetic Casting ◽  
Microstructure Examination
Sign in / Sign up

Export Citation Format

Share Document