Tribological solutions for engine piston ring surfaces: an overview on the materials and manufacturing

• Published in: Materials and manufacturing processes Vol. 35; no. 5; pp. 498 - 520
• Main Authors: Ferreira, Rita, Martins, Jorge, Carvalho, Óscar, Sobral, Luis, Carvalho, Sandra, Silva, Filipe
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 03.04.2020
• Subjects: cavities; coatings; Engine; friction; multilayer; piston ring; powder; reinforcement; surface; textures; tribology; wear

This paper exhibits an outline of the piston rings operational characteristics and consequently, of their main functional challenges. The basic geometrical shapes, materials and manufacturing technologies used to produce compression rings for up to date diesel engines are summarized. Based on this d...