Search Results for cleavage

Fig. 12 Cleavage-fracture model showing fracture direction, cleavage planes, and low-angle grain or subgrain boundary. Source: Ref 9 More

Fig. 13 Cleavage fracture in a low-carbon steel, seen through an SEM. Cleavage fracture in a notched impact specimen of hot-rolled 1040 steel broken at –196 °C (–320 °F), shown at three magnifications. The specimen was tilted at an angle of 40° to the electron beam. The cleavage planes More

Fig. 35 Examples of cleavage fractures. (a) Twist boundary, cleavage steps, and river patterns in an Fe-0.01C-0.24Mn-0.02Si alloy that was fractured by impact. (b) Tongues (arrows) on the surface of a 30% Cr steel weld metal that fractured by cleavage. Source: Ref 18 More

Fig. 36 Cleavage fracture in Armco iron showing a tilt boundary, cleavage steps, and river patterns. Transmission electron microscopy replica. Source: Ref 18 More

Fig. 2.34 Effect of quasi-cleavage—mixed cleavage and microvoid coalescence—on the fracture surface appearance of 17-PH stainless steel. TEM p-c replica, 4900× More

Fig. 13 Cleavage fracture in hardened steel showing numerous “river” marks. The overall direction of crack propagation is in the direction of the arrow (i.e., downstream). New river patterns are created where grain boundaries were crossed. 125×. More

Fig. 18.21 Hydrogen-embrittled steels. (a) Transgranular cleavage fracture in a hydrogen-embrittled annealed type 301 austenitic stainless steel. (b) Intergranular decohesive fracture in 4130 steel heat treated to 1280 MPa (185 ksi) and stessed at 980 MPa (142 ksi) while being charged More

Fig. 13.6 Nucleation of basal cleavage by (a) bend-plane splitting and (b) dislocation pileups. Source: Aldinger 1979 More

Fig. 13-17 Cleavage fracture on overload fracture surface of H13 steel CVN specimen tempered at 500 °C (930 °F) for 3 h. TEM carbon replica. Source: Ref 9 More

Fig. 15 Specimen for testing the cleavage strength of metal-to-metal adhesive bonds. Source: ASTM D 1062 More

Fig. 16 Specimen for testing cleavage peel (by tension loading). Source: ASTM D 3807 More

Fig. 5-52 Flat cleavage facets in 4340 steel containing 0.003% phosphorus after tempering at 350 °C (662 °F). Specimen was broken by impact loading at room temperature. Fractograph of the fracture of an impact sample of a 4340 steel of low P content. (From J.P Materkowski and G. Krauss, Met More

Fig. 12 Scanning electron micrograph of cleavage cracking More

Fig. 7 (a) Cleavage region observed in low-carbon steel. (b) Magnification of the region delimited by the rectangle in (a) showing an inclusion in the center of the cleavage region More

Fig. 5.10 SEM micrograph of a cleavage fracture surface on a 1018 steel. Original magnification 160× More

Fig. 10.6 Fractograph revealing typical transgranular cleavage and ductile river markings and flutes associated with aqueous chloride SCC in α/β titanium alloys. Source: Ref 10.6 More

Fig. 18.22 Flutes and intergranular cleavage resulting from SCC of β-annealed Ti-8Al-1Mo-1V in methanol. Source: Ref 18.10 More

Fig. 31 River lines on a cleavage fracture surface. Direction of growth is parallel to the direction of crack coalescence, as indicated by the arrow. Cracks must reinitiate at a boundary containing a twist (mode III) deformation component. Source: Ref 16 More

Fig. 33 Microscale quasi-cleavage fracture in an O1 tool steel tested at room temperature. Predominantly cleavage cracking with patches and ribbons of microvoid coalescence. Source: Ref 17 More

Fig. 34 Schematic of cleavage fracture formation showing the effect of subgrain boundaries. (a) Tilt boundary. (b) Twist boundary. Source: Ref 18 More