A two-dimensional numerical model incorporating solid mechanics, electrochemistry, mass diffusion, and ion migration processes is developed to investigate the load effect on crevice corrosion. The a transient of corrosion occurring in cracks 304 stainless steel dilute NaCl solution, interaction between stress electrochemical was considered. By solving multiphysical coupling COMSOL, applied crac...

The general and localized corrosion of X65 carbon steel in CO2-saturated environments conducive to iron carbonate (FeCO3) formation has been studied using electrochemical measurements, together with post-test surface analysis. This research offers new insights into the evolution FeCO3 layer its link subsequent initiation propagation corrosion. We identify crevice-like regions forming at boundar...

By macroscopic observation, composition analysis, mechanical properties test, SEM, energy spectrum, overall grip tensile test and finite element mechanics calculation method, the strain clamp steel anchor corrosion failure of a 500 kV transmission line is analysed. The results show that for 31 years are result natural corrosion, rate accelerated due to galvanic crevice stress damaged surface ga...

All-aluminum microchannel heat exchangers have recently gained popularity in the heating, ventilation, and air conditioning industry. Despite their attractive thermal performance design, these make coils used automotive, commercial, residential applications prone to crevice corrosion. This study uses high-fidelity conjugate transfer simulations model a micro channel exchanger system that includ...

Two high corrosion resistant super-alloys, alloy 800H and 625, were evaluated for compatibility with molten nitrate salts at 565 °C under air atmosphere since these super-alloys are possible candidates the manufacturing of solar receivers in CSP tower technology. Both alloys tested two different grades to identify how impurities final mixture affect damage. Accordingly, a technical grade salt (...

In this paper, electrochemical corrosion tests and full immersion experiments were conducted in seawater at room temperature to investigate the behavior mechanism of high-strength EH47. The polarization curve, EIS (electrochemical impedance spectroscopy), SEM (scanning electron microscope), EDS analyses employed analyze results process. showed that open circuit potential EH47 decreases then inc...