Fig. 9: The variation of wear degree by hydrogen charging.

Wear depth, width, and surface roughness after friction experiment with hydrogen charging (0, 50, 100, 150 mA cm−2) of DLC-coated 316 L stainless steel. a Wear depth. b Wear width.
Wear depth, width, and surface roughness after friction experiment with hydrogen charging (0, 50, 100, 150 mA cm−2) of DLC-coated 316 L stainless steel. a Wear depth. b Wear width.