Search Results for fatigue striations

Fig. 6 Example of well-formed fatigue striations in titanium alloy ( R = 0.05; maximum alternating stress, 105 ksi). ( R is the minimum stress divided by the maximum stress.) The striation density is approximately 263,000 striations/in. (~3.8 × 10 –6 in./striation). The arrow denotes More

Fig. 15 Plot of fatigue striations as a function of depth, showing the expected increasing crack growth rate with increasing depth. More

Fig. 14.16 SEM image showing fatigue striations More

Fig. 61 Typical fatigue striations in 7075 aluminum More

Fig. 67 SEM examination of the fracture surface. (a) Fatigue striations emanating from the fracture origin. (b) Machining marks found on the surface of the inner bore. (c) Well-defined layer showing fatigue emanating from the damaged material at the surface of the inner bore More

Fig. 14 Fatigue striations in (a) interstitial-free steel and (b) aluminum alloy AA2024-T42. (c) Fatigue fracture surface of a cast aluminum alloy where a fatigue crack was nucleated from a casting defect, presenting solidification dendrites on the surface. Arrow at top right indicates fatigue More

Fig. 6.136 (a) SEM image with fatigue striations on the fracture surface of a stainless steel tube, 1000×. (b) Microstructure indicating transgranular cracks with blunt tip and filled with oxide, 400× More

Fig. 6.139 (a) SEM image of fracture surface indicating fatigue striations with oxidized nature of rupture surface, 1000×. (b) Microstructure of a tube with ferrite and bainite as the phases with typical thermal faigue crack having blunt tip, 100× More

Fig. 6.162 SEM micrograph giving crack surface view. Fatigue striations along with scattered corrosion deposits are shown. More

Fig. 31 Scanning electron micrograph showing fatigue striations. Source: Ref 2 More

Fig. 9 Fatigue striations in low-carbon alloy steel (8620). This scanning electron microscope fractograph shows the roughly horizontal ridges, which are the advance of the crack front with each load application. The crack progresses in the direction of the arrow. Original magnification at 2000× More

Fig. 81 SEM micrograph of representative fatigue striations found on the bolt fracture surfaces (2 μm) More

Fig. 23 Fatigue striations on the fracture surface of a polycarbonate plumbing fixture after field failure. 32× More

Fig. 26 SEM view of fatigue striations in medium-density polyethylene, laboratory tested at 0.5 Hz with maximum stress 30% of the yield strength. Crack growth is upward in this view. Original magnification 200×. Source: Ref 23 More

Fig. 7 Fatigue striations in a carbon-fiber composite. 2000× More

Fig. 8 Fatigue striations in the resin beneath a carbon fiber that was pulled out of a carbon/epoxy (AS4/3501-6) laminate following mode I fatigue loading. 5000× More

Fig. 9 Fatigue striations in the resin of a carbon-fiber composite laminate that failed in mode I fatigue loading. Striations cover the surfaces of several fibers. 1000× More

Fig. 19 Fatigue striations in the resin of an interlaminar failure, following mode I loading of a carbon/PEEK composite laminate. 900× More

Fig. 4.10 SEM fractograph showing fatigue striations More

Fig. CH1.4 SEM fractograph of region A of Fig. CH1.1 , showing fatigue striations More