Search Results for surface-damage

Fig. 23 Free surface replica showing the development of fatigue-surface damage on recrystallized type 316LR stainless steel in aerated Ringer's solution at 38 °C (100 °F), at applied stress of 250 MPa (35.5 ksi). (a) The first visible slip systems developed at a triple point (decorated More

Fig. 12 Surface damage resulting from ceramic-steel contact (scanning electron microscope micrographs). (a) Lateral-crack spall. (b) Radial-crack propagation and delamination. (c) and (d) Ceramic-ceramic contact at high Hertz contact pressure More

Fig. 6 Surface damage caused by insufficient cooling during abrasive sectioning. The variation in colors indicates a change in the combination in transformation products. (a) and (b) Etched 2% nital plus 4% picral More

Fig. 4 Measurement and analysis of surface damage using x-ray diffraction. (a) 38 mm (1.5 in.) 1018 steel cutoff sample showing burn-related discoloration. Two residual stress measurements by x-ray diffraction were made on the sample at the locations marked by the four concentric markers. (b More

Fig. 10 Surface damage typical of galling wear on high-strength steel sheet material. Source: Ref 58 More

Fig. 24 Evolution of tooth-surface damage during a scuffing test. Reprinted from Ref 138 with permission from Elsevier More

Fig. 7 Representative modes of surface damage in liquid metal environments. IGA, intergranular attack. Source: Ref 5 More

Fig. 12 Surface damage in sapphire (Al 2 O 3 ) produced by 90 ° impact of 405 μm SiC particles traveling at a velocity of 90 m/s (300 ft/s). Note material removed by the extension of a large semicircular lateral vent crack. Source: Ref 86 More

Fig. 8 Examples of engine component surface damage. (a) Evidence of hot corrosion damage on the pressure side of a MAR-M-246 turbine blade. (b) Metallographic section across the airfoil of the MAR-M-246 blade, showing evidence of hot corrosion damage penetrating the leading edge (B) right More

Fig. 7 Damage created on the surface of an elastomer by isolated stress concentration. (a) Surface deformation pattern when a sharp needle or conical indentor with acute angle is slid on the surface of an elastomer. The elastomer surface is pulled in the direction of motion and fails More

Fig. 9 Typical cavitation damage on the surface of a sliding bearing. More

Fig. 9 Severe damage from fretting (false brinelling) on the surface of a shaft that served as the inner raceway for a needle-roller bearing. More

Fig. 16 Damage from surface deterioration and spalling in the drawn-cup outer raceway of a needle-roller bearing because the rollers were overloaded at one end. More

Fig. 18 Fine flaking damage on the surface of a shaft that served as a roller-bearing inner raceway. The flaking originated along the ridges of the surface finish of the shaft. More

Fig. 50(a) Erosion damage from the bore to just below the outside-diameter surface of an AISI H13 nozzle from a zinc die-casting die. Actual size More

Fig. 6 Surface tears caused by fretting damage when aluminum cylinders in Fig. 5 are extruded More

Fig. 38 Severe damage from fretting (false Brinelling) on the surface of a shaft that served as the inner raceway for a needle-roller bearing More

Fig. 10 (a)–(c) Surface fatigue damage resulting from “natural” ring cracks and (d) line defects. (a) Ring cracks and wear track after 113 million stress cycles at crack location β = 0° and δ = 0, where β is the angle of the chord of ring crack to the central line of the contact track, and δ More

Fig. 40 Light micrograph showing wear damage at the surface of a 4485 alloy steel medart roll. The surface was nickel plated for edge retention and etched with nital. More

Fig. 27 Erosion damage from the bore to just below the outside-diameter surface of an AISI H13 nozzle from a zinc die casting die. Actual size More