Dry sliding wear resistance evaluation of cathodic arc-PVD Cr/CrN multilayer coatings deposited on AISI 4140 nitrided and non-nitrided steel

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• Wear resistance improved significantly with cathodic arc-PVD Cr/CrN multilayer coatings, especially on nitrided steel.
• The study indicates that Cr/CrN coatings can enhance durability under dry sliding conditions in low-friction applications.
• Analysis utilized comparative metrics between nitrided and non-nitrided AISI 4140 steel coated with multilayer structures.
• Findings may enable advancements in coating technologies for manufacturing sectors needing durable components.