the synthesis of polyaniline- fe2o3 nanocomposite coating on aluminum alloy 5052 (aa5052) surface has been investigated by using the galvanostatic method. the anticorrosion performance of polyaniline-fe2o3 coating was investigated in 3.5% nacl solution by the open- circuit potential (ocp), tafel polarization technique and electrochemical impedance spectroscopy (eis). the corrosion rate of polya...

the direct synthesis of polyaniline-tio2 nanocomposite coatings on aluminum alloy 3004 (aa3004) surface has been investigated by using the galvanostatic method. the synthesized coatings were characterized by ft-ir, sem-edx, sem and afm. optical absorption spectroscopy reveals the formation of the emeraldine oxidation state form of polyaniline-tio2 nanocomposite. the corrosion performances of po...

introduction: corrosion and scaling of water in distribution systems in spite of imposing economic and aesthetic problems can lead to adverse effects on consumers' health. the present study was conducted to evaluate the corrosion and scaling of water distribution system of sarableh city (ilam, iran) during summer and winter seasons in 2014. materials and methods: totally, 60 samples of wat...

Internal pipeline corrosion in oil production and transportation is always associated with the presence of water, and the likelihood of corrosion generally increases with the volume fraction of water. When the walls of the pipeline are wetted with oil no corrosion is possible. Highly turbulent flow was associated with negligible corrosion due to water entrainment by the flowing oil, whereas low...

7 Corrosion of reinforcing steel in concrete can alter the interface between the steel and concrete and 8 thus affects the bond mechanism. This subsequently influences the behaviour of reinforced 9 concrete structures in terms of their safety and serviceability. The present paper attempts to 10 develop a numerical method that can simulate the behaviour of reinforced concrete walls subjected 11 ...

In this paper, the level of corrosion and the corrosion rate of 304 stainless steel induced by sulfatereducing bacteria were studied using electrochemical noise. The noise data were analyzed by time domain and frequency domain combined with the observations of optical microscope. And the corrosion was divided into four categories: passivation, pitting induction period, pitting and uniform corro...

7 Corrosion of reinforcing steel in concrete can alter the interface between the steel and concrete and 8 thus affects the bond mechanism. This subsequently influences the behaviour of reinforced 9 concrete structures in terms of their safety and serviceability. The present paper attempts to 10 develop a numerical method that can simulate the behaviour of reinforced concrete walls subjected 11 ...

The present study focused on stress corrosion cracking (SCC) and corrosion behavior of ferritic stainless steel (grade 430) in activated methyl diethanolamine (aMDEA) solution, which is classified as a tertiary amine. In this regard, cyclic polarization and U-bend tests were performed in CO2 loaded aMDEA with different concentrations at 25 and 70 °C to observe corrosion behavior and ...

Copper-bearing intrauterine devices(Cu-IUDs) are being increasingly used all over the world. However, the dissolution of copper in the presence of proteins is not well characterized. Here, with open circuit potential, electrochemical impedance spectroscopy measurements and potentiodynamic polarization test, the corrosion behavior of copper samples in different single-protein simulated uterine s...