OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 27 No. 3 2025 Fig. 5. XRD patterns of the studied coatings: A – Fm-3m (a = 0.350 ± 0.003 nm) Solid solutions of interstitial and substitutional types based on nickel; B – Fm-3m (a = 0.414 ± 0.003 nm) Intermetallic compounds; C – P-6m2 (a = 0.291 nm, c = 0.284 nm) – Tungsten carbide (WC) Fig. 6. Kinetics of the open circuit potential (OCP) establishment (left top); linear polarization curves (bottom left); and Tafel plots (right) in an aqueous solution containing 3.5% NaCl. Potential data are given relative to a silver/ silver chloride (Ag/AgCl) electrode
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