A Super Anticorrosive Ultrathin Film by Restarting the Native Passive Film on 316L Stainless Steel.

ABSTRACT: The corrosion resistance of stainless steel is attributed to the extraordinary protectiveness of the ultrathin native passive film (~3 nanometers) on alloy surface. This protectiveness, independent of alloying, can possibly be further increased by modifying the native film to resist corrosion in harsh conditions. However, the modification based on the film itself is extremely difficult due to its rapid, self-limiting growth. Here we present a strategy by using low-temperature plasma processing so as to follow the growth kinetics of the native film. The native oxide film is restarted and can uniformly grow up to ~15 nanometers in a self-limiting manner. High-resolution TEM found that the film exhibited a well-defined, chemical-ordering layered structure. The following corrosion tests reveal

SUBMITTER: Ren Y 

PROVIDER: S-EPMC9862606 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature