Fig. 7: Schematic representation of the micro-mechanism of the near-zero wear strategy.
From: Near-zero-wear with super-hard WB4 and a self-repairing tribo-chemical layer
The blue-green rectangle represents the WB4-B substrate. The gray hemisphere represents the WC counterpart. The brown-yellow region at the friction interface represents the friction oxides and the gray-white region represents WB4-B broken grains. The structure of the worn interface changes with the friction process as shown in schematic.
