Page 331 - Handbook of Materials Failure Analysis

(a) 200 µm (b) 100 µm

100 µm 50µm
(c) (d)
FIGURE 13.22
Theseveresliding wearparticleswithdifferentcoloroxidefilm(200 ):(a)aseveresliding wear
particle with dark oxide; (b) a severe sliding wear particle with black oxide; (c) a severe sliding
wearparticlewiththestrawanddarkoxide;(d)asevereslidingwearparticlewiththeblueoxide.

(a) 100µm (b) 100 µm

(c) 100µm (d) 100 µm
FIGURE 13.23
The catastrophicwearparticles from an oil sample taken froma seizeddieselengine (200 ): (a)
a severe sliding wear particle; (b) a severe sliding wear particle; (c) a fatigue wear particle with
partial straw-yellow oxide film; (d) a copper alloy fatigue wear particle with colorful oxide film.

(a) 100µm (b) 200 µm
FIGURE 13.24
The red oxide wear particles from a gearbox with the extremely high moisture content (200 ):
(a) a red oxide particle; (b) a red oxide particle.