Sliding/rolling wear performance of plasma nitrided H11 hot working steel

► This research is a good example for disc-on-disc test configuration. ► Wear performances of plasma-nitrided and untreated H11 discs are compared. ► The disc surfaces and subsurface properties are characterised. ► The research deals with pre-heating and subsequent plasma nitriding strategies. ► This study presents visual findings based on plasma nitriding and metallography.