Fig. 1 Ferrite microstructure of low-carbon (0.012% C) steel. Ferrite (white) grains are surrounded by grain boundaries (black). Etched with 2% nital. 100× More

Fig. 9 Duplex austenite-ferrite microstructure for type 308 submerged arc weld showing very high density of inclusions rich in silicon and manganese. Source: Ref 17 More

Fig. 4 Typical microstructure in a sintered ferritic nitrocarburized iron-copper-carbon P/M steel. 100×. Source: Ref 5 More

Fig. 5 Microstructure of ultralow-carbon ferritic steel. Source: Ref 4 as published in Ref 3 More

Fig. 22 (a) Effect of austempering temperature on microstructure. (b) Ferritic cell size and hardness of austempered ductile iron metal matrix. Source: Ref 25 More

Fig. 5 Microstructure of a fully ferritic, ultralow carbon steel. Marshalls etch + HF, 300×. Courtesy of A.O. Benscoter, Lehigh University More