Improvement in anti-corrosion property of hydrogenated diamond-like carbon film by modifying CrC interlayer
Source abstract
Abstract
Abstract Hydrogenated diamond-like carbon (DLC:H) films with three different CrC interlayers were deposited on 304 stainless steel by reactive sputtering. The structure and composition of the films were investigated by Raman spectroscope, SEM, EDS and XRD. To investigate the corrosion property of the films, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests were performed in Hank's balanced salt solution. In this study, all CrC interlayers were in amorphous state. Gradient CrC or CrNC interlayers without elements abrupt change at the interface were bonded well with DLC:H, while constant CrC interlayer was bonded with DLC:H weakly. Constant CrC interlayer didn't realize the barrier effect of DLC:H and accelerated its own corrosion due to weak interface bonding. Gradient CrC interlayer ensured DLC:H high anti-corrosion property. Gradient CrNC interlayer further improved the corrosion resistance of DLC:H due to its own high anti-corrosion property.
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Research context
OpenAlex topics: Diamond and Carbon-based Materials Research · Metal and Thin Film Mechanics · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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