Fig. 9 Fire-extinguisher case that failed because of ferrite streaks resulting from overheating during spinning. (a) Top of the case. Dimensions given in inches. (b) Micrograph showing ferrite streaks. 150× More

Fig. 9 Summary of fatigue-crack-growth data for ferrite-pearlite steels. Source: Ref 9 More

Fig. 6 Crack propagation through delta ferrite and sigma phases in type 347 stainless steel. Source: Ref 3 More

Fig. 43 Light micrograph of a ferrite-pearlite microstructure from a carbon steel reinforcing rod revealed using replicating tape. Specimen etched with picral More

Fig. 44 Micrograph from the cope side of the main-bearing journal. Ferrite caps, which partially cover the graphite nodules and cause the broken-open surface condition, are shown. The burrs rise above the surface from 4 to 13 μm. Etched with nital. 220× More

Fig. 3 Crystal structures. (a) Austenite (fcc). (b) Ferrite (bcc). (c) Martensite (bct) More

Fig. 32 Severely overheated 1038 steel showing initial stage of burning. Ferrite (white) outlines prior coarse austenite grain boundaries; matrix consists of ferrite (white) and pearlite (black). Source: Ref 4 More

Fig. 2 Spheroidized carbides in ferrite matrix in the ruptured stub. Nital 1% etch. More

Fig. 7 Scanning electron micrograph of surface of particulate disk showing ferrite particles covered with binder material More

Fig. 52 Backscattered scanning electron microscopy images of (a) 2% ferrite, annealed and air cooled, showing carbide and chi (light) phase (28Cr-53Fe-12Mo-5Ni) with 0.10 mm (0.004 in.) lateral expansion at −195 °C (−320 °F), and (b) 2% ferrite, annealed and air cooled, showing virtually More

Fig. 25 Tube microstructure of banded ferrite and pearlite with pits on the inner surface. Original magnification: 400× More

Fig. 62 Micrograph showing banded ferrite-pearlite structure and corrosion damage at outer edge of the failed tube. Original magnification: 200× More

Fig. 3 Typical microstructure of pearlite and ferrite observed in the tube samples. Nital etch. (a) 100×. (b) 800×. More

Fig. 9 Microstructure of the axle core, composed of ferrite and pearlite (and perhaps bainite). 2% nital etch. 450×. More

Fig. 8 Microstructure of the collar showing pearlite in a ferrite. matrix. Nital etch, 100×. More

Fig. 5 Intergranular cracking through the ferrite/pearlite matrix.Picral etch. 100× More

Fig. 6 Cross section showing layer of ferrite grains below fracture surface of tooth No. 2 in core. Defect extends through the carburized layer at left in the form of coarse martensite. 5% nital etch. 25×. More

Fig. 13 Section A. Microstucture at a region showing outline of ferrite grains. 2% Nital etch. More

Fig. 8 Typical ferrite and pearlite microstructure of base material More

Fig. 7 Microstructure of pearlite in a ferrite matrix More