Fig. 12 The effect of solution flow rate on the corrosion fatigue crack growth rate of a medium-sulfur, low-alloy steel tested in deaerated 288 °C (550 °F) water. Tests at high flow rate on the 3-side-open compact-type specimens permit the aggressive crack chemistry to be flushed out, reducing More

Fig. 1 Fatigue crack growth rate test specimens; a , crack length, a n , notch length, B , thickness, D , diameter, W , width, W 1 , length, W 2 , notch-to-diameter width, W 3 , notch-to-outside width. (a) Compact-type specimen. (b) Center-cracked tension specimen More

Fig. 6 Pippan data for fatigue crack growth rate as a function of crack length and R in Armco iron. Solid lines represent the experimental findings of Pippan ( Ref 8 ). Dashed lines are predicted values (A. McEvily and Z. Yang, Met. Trans. , Vol 22A, 1991, p 1079). (a) Δ K = 16 MPa m More

Fig. 55 Effect of temperature on fatigue crack growth rate. Variations in fatigue crack growth rate with test temperature for specimens of 2 1 4 Cr-1Mo steel tested in air. Stress ratio was 0.05; cyclic frequency was 400 per minute. Source: Ref 85 More

Fig. 6 Schematic illustration of variation of fatigue-crack-growth rate, da / dN , with alternating stress intensity, Δ K , in steels, showing regions of primary crack-growth mechanisms. Source: Ref 5 More

Fig. 13 Effect of hold time on the fatigue crack growth rate properties of 2.25Cr-1Mo cast steel. The 2 h hold time tests were performed in steam at 538 °C (100 °F). Source: Ref 13 More

Fig. 3 Variation of the fatigue crack growth rate as a function of temperature. (a) Temperature effect on fatigue crack threshold and growth rates. (b) Variation of fatigue crack growth rates at Δ K of 30 MPa m (27 ksi in. ) More

Fig. 16 Fatigue crack growth rate as a function of stress-intensity range. Source: Ref 94 More

Fig. 5 Minor influences of differing microstructures on fatigue crack growth rate curves: data from twelve 2 xxx and 7 xxx aluminum alloys with different heat treatments More

Fig. 3 Scatterband comparison of fatigue-crack growth rate behavior of wrought β-annealed Ti-6Al-4V to cast and cast plus HIP Ti-6Al-4V data More

Fig. 6 Cubic spline curve fit to fatigue crack growth rate data for 2219-T851 aluminum at a stress ratio of R = 0.3 More

Fig. 4 Scatter band limits for fatigue crack growth rate behavior for a range of aluminum alloys. Source: Ref 6 More

Fig. 50 Effects of grain size and aging treatment on the fatigue crack growth rate of intermediate thermomechanical treatment (ITMT) alloy 7045. (a) Tests in vacuum. (b) Tests in laboratory air. Differences in a vacuum could not be accounted for by closure effects. Source: Ref 98 More

Fig. 30 Fatigue crack growth rate ( R = 0.1) vs. stress-intensity factor at room temperature for A356.0-T6 aluminum alloy castings produced by various processes. VRC/PRC, vacuum riserless casting/pressure riserless casting More

Fig. 31 Fatigue crack growth rate ( R = 0.5) vs. stress-intensity factor at room temperature for A356.0-T6 aluminum alloy castings produced by various processes. VRC/PRC, vacuum riserless casting/pressure riserless casting More

Fig. 12 Schematic illustration of variation of fatigue crack-growth rate, da / dN , with alternating stress intensity, Δ K , in steels, showing regions of primary crack-growth mechanisms. Source: Ref 13 More

Fig. 17 Effect of hold time on the fatigue crack growth rate properties of 2.25Cr-1Mo cast steel. The 2 h hold time tests were performed in steam at 538 °C (1000 °F). Source: Ref 28 More

Fig. 21 Effect of welding processes on the fatigue-crack-growth rate of longitudinally oriented (a) Ti-6Al-4V and (b)Ti-15V-3Cr-3Al-3Sn. Source: Ref 40 More

Fig. 22 Effect of welding process on the fatigue-crack-growth rate scattering in Ti-6Al-4V. (a) Gas-tungsten arc welding. (b) Electron-beam welding. (c) Laser-beam welding. Source: Ref 40 More

Fig. 13 Comparison of the fatigue crack growth rate at room temperature in air of Ti-6Al-4V PA compacts with that of an I/M alloy material. Stress ratio ( R ), 0.1; frequency ( f ), 5 to 30 Hz (5 Hz for a PA compact). Source: Ref 74 More