Enhanced Tribocorrosion Performance of Cr/GLC Multilayered Films for Marine Protective Application

Abstract

The 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.

Enhanced Tribocorrosion Resistance of Superhard Ti-C-N Ceramics Coatings

“…The combined improvement is attributed to the precise control of micro pulse of HiPIMS and reactive deposition conditions of the coatings [42,46]. Tribological hard coatings have been wildly used in the eld of marine engineering as protective coatings [47,48]. Hence, the surface and interface features have a key in uence on the performance due to surface hydrophily and hydrophobicity [49].…”

Tailoring the Tribocorrosion and Antifouling Performance of (Cr, Cu)-GLC Coatings for Marine Application

“…11−13 As a member of the amorphous carbon family, GLC coatings have been considered as potential candidates for use in the marine environment owing to its high hardness, low friction, and chemical inertness. 2 Many studies have been conducted to investigate the tribological performance of GLC coatings in a water environment. For example, Stallard et al 14 demonstrated the Graphit-iC coatings exhibited better tribological performance than Dymon-iC coatings under water environment.…”

“…Wang et al 15 investigated the effect of interlayer design on the tribology properties of GLC coatings in seawater and found that the hard carbide phase and nanointerlocked microstructure were key to the tribological properties of GLC coatings in seawater. Recently, Li et al 2 systematically studied the tribocorrosion properties of Cr/GLC multilayered coatings in seawater by a tribometer integrated with a three-electrode electrochemical system. They confirm that the tribocorrosion resistance of Cr/ GLC multilayered coatings significantly depended on the modulation period.…”

“…Mechanical friction consumes a lot of resources and energy, and this situation is more serious and complicated in the marine environment. − One of the main reasons is that mechanical components will suffer electrochemical corrosion and friction wear at the same time under a marine environment. This phenomenon is known as tribocorrosion and can cause severe loss of the metal components. ,− In order to enhance the tribocorrosion performance of marine mechanical components, various method have been proposed. One of the popular strategies is to use surface function coatings with combined lubrication and anticorrosion properties. − …”

“…Recently, amorphous carbon coatings have become a hot research topic in various applications due to their desirable mechanical and tribocorrosion properties. According to the content of sp 2 and sp 3 bonds, amorphous carbon coatings can be divided into a graphite-like carbon (GLC) coating and a diamond-like carbon (DLC). − As a member of the amorphous carbon family, GLC coatings have been considered as potential candidates for use in the marine environment owing to its high hardness, low friction, and chemical inertness . Many studies have been conducted to investigate the tribological performance of GLC coatings in a water environment.…”