Fig. 24 (a) Macrograph of fracture, (b) SEM fractograph, and (c) light micrograph showing shrinkage cavities in an unusual tensile fracture from a carbon steel casting. The microstructure was revealed using nital. More

Fig. 17 Scanning electron microscope fractograph of fracture surface of a wrought aluminum alloy. Observe that there are distinct regions generated by a ductile fracture process (regions with dimples) and intergranular fracture process (facets). More

Fig. 1 Fractograph of the surface of a fracture that occurred one turn from the end of a titanium alloy spring. The arrow indicates the point of contact with the end of the next coil. 10× More

Fig. 12 Shear fracture of a commercially pure titanium screw. (a) SEM fractograph showing spiral textured fracture surface of sheared-off screw. Typical deformation lines are fanning out on the thread. (b) Uniformly distributed shearing tongues and dimples More

Fig. 6 TEM fractograph showing fatigue-crack growth striations. 39,000× More

Fig. 32 Transmission electron fractograph of aluminum alloy laboratory spectrum loading fatigue test. Striation spacing varies according to loading, which consisted of ten cycles at a high stress alternating with ten cycles at a lower stress. The fracture surface exhibits bands of ten coarse More

Fig. 40 Fractograph showing the advanced stages of macropitting fatigue for a helical pinion tooth More

Fig. 42 Fractograph showing the advanced stages of point-surface-origin macropitting fatigue of a bearing raceway in which the origin is still visible More

Fig. 4 Fractograph of ligament crack showing “beach marks.” More

Fig. 3 SEM fractograph of the failed Inconel 600 bellows. More

Fig. 2 SEM fractograph of a typical fracture surface on a wire showing fracture origin from a pocket of nonmetallic inclusions. Characteristic beach marks are seen originating and propagating away from the fracture origin. More

Fig. 3 SEM fractograph of the fracture surface as in Fig. 2 , showing fatigue striations More

Fig. 4 SEM fractograph of the fracture surface on a wire sample showing cup part of a typical cup and cone fracture More

Fig. 5 SEM fractograph of the fracture surface as in Fig. 4 , showing equiaxed dimpled rupture More

Fig. 2 Shear fracture of a commercially pure titanium screw. (a) SEM fractograph showing spiral textured fracture surface of sheared-off screw. Typical deformation lines are fanning out on the thread. (b) Uniformly distributed shearing tongues and dimples More

Fig. 1 Fractograph of tubing with a brittle zone near the OD indicative of sulfide SCC More

Fig. 5 SEM fractograph of the brittle fractured surface. Cleavage facets are visible at B in Fig. 4 . More

Fig. 6 SEM fractograph of the fractured surface near the bottom of the deep drawing flaw.A : deep drawing flaw.B : dimples.C : cleavage facets. More

Fig. 6 Fractograph showing (a) secondary cracking on the pipe surface near the fracture origin location (upper left and left-center at 225× and 60×); (b) a secondary crack after opening it with higher magnification of crack extension region (upper, center-right and right at 60× and 2000 More

Fig. 1 Failed cast iron deburring drum. (a) Light fractograph showing the probable fracture origin at a sharp corner of a bolt hole. 0.25x. (b) SEM fractograph showing fatigue striations at the area of suspected fracture origin. 1000x More