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Enhanced Tribocorrosion Performance of Cr/GLC Multilayered Films for Marine Protective Application
journal contribution
posted on 2018-03-30, 00:00 authored by Lei Li, Lin-Lin Liu, Xiaowei Li, Peng Guo, Peiling Ke, Aiying WangThe corrosion and
tribology are all closely related to the interface/surface of materials,
which are extremely important for the mechanical components used in
harsh marine environments. In this work, we fabricated Cr/graphite-like
carbon (GLC) multilayered films with different modulation periods
on the 316L stainless steels by direct current magnetron sputtering.
Tribocorrosion tests in artificial seawater show that the tribocorrosion
resistance of the Cr/GLC films is improved as the modulation period
decreases from 1000 to 333 nm and then drastically drops with further
decreasing to 250 nm. By taking a top-layer thickening strategy for
the Cr/GLC film with 250 nm modulation period, the tribocorrosion
performance is significantly enhanced. The corresponded mechanisms
are discussed in terms of the film structure and electrochemical corrosion
behavior.