Fig. 33 Impact wear test apparatus. 1, sample; 2, steel ball; 3, ball holder; 4, base (the sample is not clamped to the base, not shown in the diagram); 5, vertical guide for the ball holder; 6, horizontal bar (defines the drop height); 7, magnetic steel block; 8, permanent magnet (attached More

Fig. 8 Micrograph of a steel ball wear scar covered with a transfer film after 5000 sliding cycles against a-C:H:W coating. In the image, the disk sliding direction was top to bottom with respect to a fixed ball position. More

Fig. 1 Mild steel ball wear as a function of surface area change of ground magnetic taconite. On ends of plotted lines are the grinding times in minutes. Source Ref 6 , 7 , 10 . More