Fig. 2 The cleavage and quasi-cleavage fracture surface at the location of crack initiation. (×300) More

Fig. 5 SCC fracture surface with cleavage-like river markings. Magnification 100× More

Fig. 2 Transgranular cleavage in an area of the surface of the hydrogen embrittlement fracture of the type 431 stainless steel mushroom-head closure shown in Fig. 4. See also Fig. 6. When viewed in three-dimension, this stereo pair shows a massive ridge running from top to bottom at the left More

Fig. 7 Area adjacent to nucleus shows cleavage facets characteristic of brittle fracture (1000 ×). More

Fig. 6 Transgranular cleavage (lower left) and intergranular tearing (upper right), crack initiation site of Figure 5 . More

Fig. 7 Region showing quasi-cleavage in the exemplar specimen subjected to steady torsional loads. More

Fig. 13 Quasi-cleavage observed on the para spoon fracture. More

Fig. 6 Brittle cleavage surface of fracture toughness specimen. 500 × More

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

Fig. 8 Typical cleavage like features of the inclined initial areas. More

Fig. 10 Fractographic features of the final rupture zone characterized by cleavage and ductile dimples. The cleavage features were much rougher than in the inclined areas, such as shown in Figure 8 . More

Fig. 16 Typical cleavage like features of the visually shiny zones. More

Fig. 18 Cleavage features of a piece of PH 13-8 Mo impact tested at liquid nitrogen temperature. More

Fig. 3 Fracture mode of brittle cleavage and ductile dimple characteristics under SEM examination at ×1000 More

Fig. 7 Fractograph of impact specimen #8 (−60deg. F; 50% cleavage, 50% ductile). More

Fig. 5 Fracture surface showing hydride cleavage typical of DHC (TEM examination of a two-stage carbon replica). Near area B in Figure 4 . More

Fig. 3 Beach marks and cleavage-like river markings on the fracture surface. More

Fig. 57 Quasi-cleavage fracture in a low-carbon steel tested at −196 °C (−320 °F). (a) Tensile specimen. (b) Torsion (mode III) specimen. Etch pitting indicated that the fracture plane was {100}. Source: Ref 72 More

Fig. 64 Quasi-cleavage fracture in an O1 tool steel. Source: Ref 75 More

Fig. 45 Isolated cleavage facet within progressive high-growth-rate fatigue fracture of fully pearlitic steel, as viewed in the SEM More