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1. 1. Tribological evaluation of the contact between upper compression ring and cylinder liner with different surface coatings

   Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

   Författare :Pär Wassborg; [2016]
   Nyckelord :piston ring; cylinder liner; wear; friction; grey cast iron; titanium oxide; chromium oxide;

   Sammanfattning : The constant pursuit in the automotive industry to increase the engines performance, new solutions are always developed and tested to reduce the friction and increase the efficiency in the engine. One component that contributes to friction losses is the piston ring pack where the top compression stands for up to 40 %. LÄS MER