The corrosion behavior of X80 steel in the presence of coupled coating defects was simulated and studied under the interference of alternating current (AC) in an alkaline environment. The results from electrochemical measurements showed that the electrode potential of the coating defect with the smaller exposed area was lower than that with the larger area, which indicated that the steel with t...

causes many failures in chemical process installations. These failures generate high costs, therefore an effective corrosion monitoring system obtrudes. This paper focuses on the classification of the most important corrosion processes: pitting, stress corrosion cracking (SCC) and general corrosion. The computations and algorithms involved in the classification of the corrosion time series are ...

abstract this work investigated the electrochemical and aqueous tribological behavior of hot pressed 2205 duplex stainless steel (dss). dss sintered composites of different volume percent (% vol) of partially stabilized zirconia (psz) was developed using powder metallurgy (pm) technique. electrochemical behaviour was studied at room temperature, using open circuit potential and potentiodynamic ...

The corrosion, microstructure, and hardness of nanocrystalline AA5083 were compared to that conventional AA5083-H116 consolidated gas atomized powder. was produced by consolidating high-energy ball milled powder with two methods: cold compaction spark plasma sintering. Electrochemical impedance spectroscopy, cyclic potentiodynamic polarization, Mott-Schottky analysis, immersion tests followed s...

An Al8Co19Cr23Fe32Ni18 high-entropy alloy with a solid solution of Al was prepared, and its pitting corrosion resistance in 0.1 M NaCl high-temperature oxidation at 1273 K were assessed. The potential this is lower than that the Al-free Co19Cr23Fe40Ni18 alloy, although higher. decrease owing to addition attributed surface oxide film nitride inclusions metal matrix. For potentiodynamic polarizat...

The results of measurements of the corrosion of galvanized steel and of bare steel and zinc as reference materials after exposure to different soil conditions for a maximum of 13 years are reported. The magnitude and progress of corrosion of galvanized steel as determined by weight loss and pitting is interpreted in terms of the environmental conditions to which the specimens were exposed. From...

The development of NbC-containing martensitic stainless steels has made it possible to unite the properties high corrosion resistance and wear resistance. If NbC is used as a hard phase instead chromium carbide, abrasive increased due greater hardness NbC. solubility in low. For this reason, fully available form passive surface layer increase In steel melt, niobium leads formation primary NbC, ...