Pyrrole-Based Silane Primer for Corrosion Protection of Commercial AA 2024 T3

2008 ◽  
Vol 38 ◽  
pp. 14-26 ◽  
Author(s):  
Monica Trueba ◽  
Stefano P. Trasatti
Keyword(s):  
Surface Treatment ◽  
Corrosion Protection ◽  
Layer Structure ◽  
Film Deposition ◽  
Corrosion Performance ◽  
Alternative Approach ◽  
Aa 2024

An alternative approach was developed for surface treatment of as-received commercial AA 2024 T3 by using a pyrrole-based silane (SiPy). For film deposition, just one immersion step is enough, followed by curing. SiPy layer structure contains both polysiloxane bonds and pyrrole oligomers, with some degree of doping, giving a highly coherent layer. The superior film quality with respect to simple polysiloxane, is probably the main reason for the better corrosion performance obtained for SiPy on 2024.

Plasma Surface Treatment: Effects on Mechanical and Corrosion Protection Properties of Hybrid Sol–Gel Coatings

2019 ◽  
Author(s):  
R. Subasri
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Surface Treatment ◽  
Corrosion Protection ◽  
Sol Gel ◽  
Surface Cleaning ◽  
Al Alloys ◽  
Plasma Surface ◽  
Wet Chemical ◽  
Pre Treatment

Surface cleaning and activation of substrates are two critical processes that affect the mechanical and corrosion resistance properties of protective coatings when deposited on the substrates. Surface cleaning removes the contaminants, for example, grease on the substrate, and surface activation introduces active bonds on the substrate thereby increasing the surface free energy. Conventionally, surface cleaning and activation of aluminum and its alloys are carried out by a wet chemical technique. A convenient and safe alternate to the wet chemical cleaning/activation would be to use plasma for the same purpose. Plasma surface pre-treatment greatly improves adhesion of coatings deposited, which is very vital for good corrosion protection and mechanical properties such as scratch and abrasion resistance. Cold and atmospheric air plasma treatments have been the most widely studied pre-treatments for Al alloys. This article will discuss the advancements in the use of plasma treatment on Al/Al alloys and its effect on corrosion resistance and mechanical properties of coatings deposited after the surface treatment.

Corrosion Protection Coatings from Size-Specified Graphene Oxide

2020 ◽  
Vol 981 ◽  
pp. 29-33
Author(s):  
Nurul Huda Abu Bakar ◽  
Jamil Ismail ◽  
Kwok Feng Chong
Keyword(s):  
Graphene Oxide ◽  
Corrosion Protection ◽  
Surface Texture ◽  
Copper Substrate ◽  
Smooth Surfaces ◽  
Nacl Solution ◽  
Corrosion Performance

Corrosion performance of graphene oxide (GO) coatings from different sheets sizes in 3.5 wt% NaCl solution was investigated. The GO dispersion was subjected to 5 and 10 hours of ultrasonication before electrophoretically deposited (EPD) onto the copper substrate. It was found that the EPD-GO coating from smaller sheets (10h ultrasonication) possess hydrophobic, thinner film and smooth surfaces. It is suggested that the corrosion performance of the coating from smaller GO sheets is improved due to the surface texture and compactness of the coating as compared to the larger GO sheets.

Phosphate ester surface treatment for reduced wear and corrosion protection

Wear ◽  
1994 ◽  
Vol 173 (1-2) ◽  
pp. 207-217 ◽  
Author(s):  
Douglas G. Placek ◽  
Sundeep G. Shankwalkar
Keyword(s):  
Surface Treatment ◽  
Corrosion Protection ◽  
Phosphate Ester ◽  
Wear And Corrosion

scholarly journals Influence of surface treatment on PEDOT coatings: surface and electrochemical corrosion aspects of newly developed Ti alloy

RSC Advances ◽  
2018 ◽  
Vol 8 (34) ◽  
pp. 19181-19195 ◽  
Author(s):  
A. Madhan Kumar ◽  
M. A. Hussein ◽  
Akeem Yusuf Adesina ◽  
Suresh Ramakrishna ◽  
N. Al-Aqeeli
Keyword(s):  
Surface Treatment ◽  
Corrosion Protection ◽  
Electrochemical Corrosion ◽  
Polymer Coatings ◽  
Ti Alloy ◽  
Metallic Materials ◽  
Surface Features

Surface treatment of metallic materials prior to the application of polymer coatings plays an important role in providing improved surface features and enhanced corrosion protection.

scholarly journals Corrosion Performance Evaluation of Suspension Bridge Cable Corrosion Protection Methods by Field Exposed Tests.

1999 ◽  
pp. 15-28 ◽  
Author(s):  
Kazuhiko FURUYA ◽  
Makoto KITAGAWA ◽  
Shun-ichi NAKAMURA ◽  
Keita SUZUMURA ◽  
Morio SEIRYU
Keyword(s):  
Performance Evaluation ◽  
Corrosion Protection ◽  
Suspension Bridge ◽  
Corrosion Performance ◽  
Bridge Cable
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