R. Kirchheim, K. Maier
This study investigates the electropolishing process of various metals using different electrolytes under potentiostatic conditions, focusing on current-time behavior across several orders of magnitude at varying temperatures. The research identifies three distinct stages during the electropolishing: firstly, a constant current density phase; secondly, a saturation stage where the current density decreases with the reciprocal square root of time, and finally, a steady-state current density phase described by an exponential time law. Theoretical models based on Elmore's work effectively describe stages I and II, while a novel model addressing convection effects is introduced for stage III. It posits that the formation of a solid film during the transition from stage I to II contributes to deviations from expected current-time behavior. Mathematical treatment of this phenomenon indicates film thickness ranging from 3 to 30 nm. This work builds upon previous contributions to the understanding of electropolishing, aiming to clarify the complex interactions between metal dissolution and film formation in anodic processes.
@article{cd9dff4e-837c-41f0-9468-03aad0191376,
title={Diffusion and Solid Film Formation durin},
author={R. Kirchheim and K. Maier},
year={2026},
language={en}
}TY - JOUR TI - Diffusion and Solid Film Formation durin AU - R. Kirchheim AU - K. Maier PY - 2026 LA - en ER -
Unknown, Unknown
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