SMART COATING FOR CORROSION PROTECTION OF ALUMINIUM ALLOYS: GLOBAL AND LOCALIZED STUDY OF ANTI- CORROSION PERFORMANCE

2020 ◽  
pp. 1-12 ◽  
Author(s):  
Jéssica Verger Nardeli ◽  
Cecílio Sadao Fugivara ◽  
Fátima Montemor ◽  
Assis Vicente Benedetti
Keyword(s):  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Corrosion Performance ◽  
Smart Coating

Smart coating based on double stimuli-responsive microcapsules containing linseed oil and benzotriazole for active corrosion protection

2018 ◽  
Vol 130 ◽  
pp. 56-63 ◽  
Author(s):  
Débora Abrantes Leal ◽  
Izabel Cristina Riegel-Vidotti ◽  
Mário Guerreiro Silva Ferreira ◽  
Cláudia Eliana Bruno Marino
Keyword(s):  
Corrosion Protection ◽  
Linseed Oil ◽  
Stimuli Responsive ◽  
Smart Coating ◽  
Active Corrosion

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.

Slurry Erosive Wear Behavior of Forged Al6061-CeO2-TiO2 Hybrid Composites

2013 ◽  
Author(s):  
Ramesh Chinnakurli Suryanarayana ◽  
Ummar Khan Attaullah ◽  
Kumar Saheb ◽  
Apoorva Kumar ◽  
Manoj Kumar Rajput
Keyword(s):  
Aluminium Alloy ◽  
Corrosion Protection ◽  
Aluminium Alloys ◽  
Hybrid Composites ◽  
Wear Behavior ◽  
Hot Forging ◽  
Erosive Wear ◽  
Hot Extrusion ◽  
Matrix Alloy ◽  
Slurry Erosion

Aluminium alloys are being widely used in naval applications owing to their excellent corrosion resistance and high formability characteristics. One of the most popular naval components is the tarpedo blade which makes use of forged aluminium alloy followed by anodizing surface treatment for corrosion protection. In recent years, there have been few attempts to replace the conventional aluminium alloys by their composites for the tarpedo blade applications. Literature review clearly says that CeO2 (Ceria) coating on aluminium and aluminium composites enhances their corrosion protection in aggressive marine environment. Further, there are reports suggesting that combination of CeO2 and TiO2 do yield better corrosion protection. However, there is no information on the work related to development of hybrid ceramic reinforced aluminium alloy matrices with CeO2 and TiO2 as particulate reinforcements for potential naval applications. In the light of above, the present work focuses on the development of novel Al6061-CeO2-TiO2 hybrid metal matrix composite by stir casting route followed by hot extrusion with an extrusion ratio of 8:1 at a temperature 550 °C and hot forging at 475 °C. The developed forged hybrid composites and the matrix alloy have been evaluated for microstructure, micro hardness and slurry erosion wear tests as per the ASTM Standards.

Smart coating for corrosion protection by adopting nano particles

2012 ◽  
Vol 74 (3) ◽  
pp. 461-469 ◽  
Author(s):  
N. Selvakumar ◽  
K. Jeyasubramanian ◽  
R. Sharmila
Keyword(s):  
Corrosion Protection ◽  
Nano Particles ◽  
Smart Coating

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.

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

scholarly journals Development of PosMAC® Steel and Its Application Properties

2021 ◽  
Vol 59 (9) ◽  
pp. 613-623
Author(s):  
Il-Ryoung Sohn ◽  
Tae-Chul Kim ◽  
Gwang-Il Ju ◽  
Myung-Soo Kim ◽  
Jong-Sang Kim
Keyword(s):  
Corrosion Protection ◽  
Surface Friction ◽  
Chemical Compositions ◽  
Corrosion Performance ◽  
Corrosion Properties ◽  
Friction Resistance ◽  
Superior Surface ◽  
Coated Surfaces ◽  
Corrosive Environments ◽  
Coating Weight

PosMAC® is a hot dipping Zn-Mg-Al coated steel sheet developed by POSCO. PosMAC®3.0 shows excellent anti-corrosion performance and is suitable for construction and solar energy systems in severe corrosive environments. PosMAC®1.5 has a superior surface quality and is preferred for automotive and home appliances. The advanced anti-corrosion properties of PosMAC® comes from a dense corroded layer which forms on coated surfaces, compared with traditional Zn coatings such as GI, GA and EG. PosMAC® steels show superior corrosion protection compared to GI coatings in cyclic corrosion tests, despite an approximate 30% reduction in coating weight. The PosMAC® has excellent application properties for the arc welding of automotive chassis. It has a heat resistance that is more robust than the GI coating, and maintains excellent corrosion protection near the welds of the chassis. Zn-Mg-Al coatings, whose chemical compositions are similar to PosMAC® coatings, have very low surface friction properties compared to the GI coating. The friction coefficient of PosMAC® is stabilized to 0.09~0.11. In contrast, the GI coating showed higher friction coefficients of 0.2~0.3 in the repeated friction test. PosMAC® would be appropriate for complex forming parts with less galling, given these low friction resistance properties. It is expected that the industrial demand for PosMAC® steel will increase in the near future, thanks to its Zn saving and high anti-corrosion performance.

scholarly journals 1-Butyl-3-Methylimidazolium Chloride Ionic Liquid as Inhibitor for Corrosion Protection of Mild Steel in Acidic Media

2019 ◽  
Vol 7 (4.14) ◽  
pp. 146
Author(s):  
A A. Ahmad Tarmizi ◽  
L Peter ◽  
D Ahtoi ◽  
R Yusof ◽  
S N.A. Syed Ismail ◽  
...  
Keyword(s):  
Weight Loss ◽  
Ionic Liquid ◽  
Mild Steel ◽  
Sulphuric Acid ◽  
Corrosion Protection ◽  
Corrosion Performance ◽  
Weight Loss Measurement ◽  
Scanning Electronic Microscopy ◽  
Acidic Media ◽  
Loss Measurement

Corrosion inhibitor is a substance added to the corrosive environment in small quantities to reduce the corrosion a metal. The addition of inhibitors will reduce the corrosion rate of the metal by retarding the corrosion process on the metal surface. Thus, this study focused on the study of the effectiveness of 1- butyl-3-methylimidazolium chloride ([EMIM]Cl) ionic liquid as an inhibitor for corrosion protection of mild steel. Two different concentrations of [EMIM]Cl (0.05 M and 0.5 M) were tested into different concentrations of sulphuric acid (0.05M, 0.10 M, 0.15 M, 0.20 M and 0.25 M). Weight loss measurement was used to determine the effectiveness of the [EMIM]Cl as inhibitor for corrosion protection. Results showed that acid concentrations play an important role for the corrosion protection process in the presence of the inhibitor. The weight loss increases as the concentration of the acid increased. The study also revealed that the concentrations of [EMIM]Cl ionic liquid effect the performance of the inhibitor. From this study, 0.5 M of [EMIM]Cl ionic liquid shows better corrosion performance compared to 0.05 M of [EMIM]Cl. At 0.25 M of sulphuric acid, the weight loss of untreated metal increased drastically from 0.0075 g at 0.5 hour to 0.0974 g at 24 hours. After treated with 0.5 M of [EMIM]Cl, the weight loss measurement slightly increased from 0.0027 g at 0.5 hour to 0.0179 g at 24 hours. This weight loss value is lower compared to mild steel treated with 0.05 M [EMIM]Cl which is 0.0469 g at 24 hours. The performance of the inhibitor in two different type of acid was also investigated. The morphology of the untreated mild steel and mild steel treated with [EMIM]Cl was investigated by scanning electronic microscopy (SEM)  

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