Establishing the passive film stability formed at different depths from the surface of machined type 304 L SS
Source abstract
Abstract
Abstract Using a novel approach, passive film stability was established at increasing depths from surface for machined and heat-treated (675 °C/1 h) type 304 L SS. Severely plastically deformed (SPD) top surface had nano/ultrafine grains till ∼8 μm depth. Double loop-electrochemical potentiodynamic reactivation test and potentiostatic test showed passive film over SPD layer was unstable. Film stability improved till ∼100 μm depth, beyond which it matched with that of mid-thickness (protective). Defect density (Mott-Schottky analysis) in film over SPD surface was 1.7–1.8 times higher than that over mid-thickness. Point defect model was used to explain the role of machining on passive film stability.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Welding Techniques and Residual Stresses · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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