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fatigue crack growth

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001028
EISBN: 978-1-62708-214-3
... indicating mode I fatigue crack progression from the top surface, apparently due to reverse bending of the sheet. (a) 385×. (b) 1925×. After the crack was opened, examination near the crack front showed that the direction of the crack growth in the lower zone was upward and outward, indicated...
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Published: 01 January 2002
Fig. 39 (a) Comparison of creep-fatigue crack growth rates with fatigue crack growth plotted as a function of Δ K . (b) The effect of hold time estimated for engineering structures when the creep crack growth rate is plotted as a function of ( C t ) avg More
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Published: 01 January 2002
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
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Published: 01 January 2002
Fig. 8 Summary of fatigue-crack-growth data for martensitic steels. Source: Ref 9 More
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Published: 01 January 2002
Fig. 9 Summary of fatigue-crack-growth data for ferrite-pearlite steels. Source: Ref 9 More
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Published: 01 January 2002
Fig. 10 Room-temperature fatigue-crack-growth behavior of ASTM grade A293 steel. Levels of R represent spectrum of typical in-service load history. More
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Published: 01 January 2002
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
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Published: 01 June 2019
Fig. 8 Fatigue crack growth rates through the segregated region compared to known growth rate values. More
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Published: 01 January 2002
Fig. 6 TEM fractograph showing fatigue-crack growth striations. 39,000× More
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Published: 01 January 2002
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
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Published: 01 January 2002
Fig. 24 Cases of environmental effects on fatigue crack growth. (a) True corrosion fatigue. (b) Stress-corrosion fatigue. (c) Stress-corrosion fatigue on true corrosion fatigue More
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Published: 01 June 2019
Fig. 10 Functional dependence of ΔK eff, T on R. The fatigue crack growth data are from Wanhill and Looije. 9 More
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Published: 01 June 2019
Fig. 5 Fatigue crack growth started at O; arrows indicate direction. Magnification 3 times. More
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Published: 01 June 2019
Fig. 4 Fatigue crack growth in crankshaft shows beach marks. Chromium plating, about 0.010 in. thick, is indicated by arrows More
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Published: 30 August 2021
Fig. 24 Illustration of the three stages of subcritical fatigue crack growth. Adapted from Ref 16 More
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Published: 01 December 1992
Fig. 3 Concentric ring appearance, typical of fatigue crack growth, emanating from the pits along the bottom edge of the main rotor blade adjacent to the set-back for the fiberglass pockets. More
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Published: 01 December 1992
Fig. 18 Log-log da/dN versus delta K fatigue crack growth-rate test results for 310 MPa (45 ksi) maximum stress and stress ratio of 0.73. The scatterband (two parallel lines) is for quenched and tempered martensitic steels from NCHRP 12–14. Note that the A517 grade, F, plate D, test results More
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Published: 15 January 2021
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
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Published: 15 January 2021
Fig. 14 Summary of fatigue crack-growth data for martensitic steels. Source: Ref 19 More
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Published: 15 January 2021
Fig. 15 Summary of fatigue crack-growth data for ferrite-pearlite steels. Source: Ref 19 More