Search Results for microcracks

Fig. 15 Pitting and surface microcracks on the tooth flank of an oil-lubricated nylon driving gear. 37×. Source: Ref 53 More

Fig. 24 Network of microcracks (arrows) on the outside diameter surface of the sleeve (lower portion of the micrograph). More

Fig. 3 Replica micrograph of the first microcracks in fatigue slip bands on the surface of cycled copper. Same loading as in Fig. 2 ; replica stripped off at N = 10 5 cycles More

Fig. 4 Density of microcracks for two stress amplitudes (σ a ) in Al-Cu Mg alloy. N , number of cycles; N f , number of cycles to fracture. Axial load, R = −1 More

Fig. 7 Replica micrograph of persistent slip bands containing microcracks on the surface of low-carbon steel More

Fig. 13 Surface relief microcracks and dislocation structure in surface layer. Section perpendicular to the specimen surface and the primary slip plane in copper single crystal. D, electrodeposited layer; S, specimen; M, microcracks More

Fig. 8 Predicted nonlinear growth of microcracks for 1045 steel for four different constant-amplitude fatigue lives. Completely reversed (a) torsional fatigue and (b) uniaxial fatigue. Source: Ref 58 More

Fig. 13 da / dN -Δ K curves of microcracks in Ti-6Al-4V. CL, coarse lamellar; EQ, equiaxed. Source: Ref 8 More

Fig. 14 da / dN -Δ K curves of microcracks in TIMETAL 1100. (a) Fully lamellar microstructure. Effect of prior β grain size. (b) Duplex microstructure. Effect of α p content. Source: Ref 20 , 21 More

Fig. 18 da / dN -Δ K curves of microcracks in Ti-3Al-8V-6Cr-4Mo-4Zr. SHT, solution heat treated. Source: Ref 25 More

Fig. 6 Plate martensite formed in an Fe-1.86C alloy. Arrows indicate microcracks. Source: Ref 6 . Reprinted with permission More

Fig. 17 Example of typical microcracks in martensite. 1.13% C steel, original magnification: 2200×. Source: Ref 34 More

Fig. 15 Microcracks in martensite plates of an Fe-1.86C alloy. Light micrograph. Source: Ref 42 More

Fig. 16 Microcracks in the compound layer. Transmission electron micrograph; original magnification: 10,000× More

Fig. 1 Cross section of a polished composite showing areas of the microcracks partially filled with epoxy mounting resin. Incomplete impregnation of the mounting resin can cause edge rounding and also fill the unprotected edges with grinding and polishing debris. Unimpregnated areas More

Fig. 10 Microcracks in a composite material that are difficult to observe using epi-bright-field illumination. (a) Bright-field illumination, 25× objective. (b) Same location viewed after applying a fluorescent penetrant dye (Magnaflux Zyglo) to the surface and back-polishing. Epi-fluorescence More

Fig. 11 Composite part containing microcracks that extend to the surfacing film, primer, and paint layers. (a) Slightly uncrossed polarized light was used to contrast the paint layer (10× objective). (b) A fluorescent penetration dye (Magnaflux Zyglo) was applied on the surface of the specimen More

Fig. 14 Thermoplastic fiber-reinforced composite with the microcracks dyed using Magnaflux Spotcheck SKL-H. Dark-field illumination, 25× objective More

Fig. 1 Microcracks in a carbon fiber composite laminate due to thermal cycling. (a) Resin-rich region in the composite. Slightly uncrossed polarized light, 10× objective. (b) Resin-rich region containing a large void. Slightly uncrossed polarized light, 10× objective More