Journal ArticleDOI
Mechanisms of fatigue crack growth in low alloy steel
Robert O. Ritchie,John F. Knott +1 more
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In this paper, a study has been made of fatigue crack propagation in a low alloy steel which is subject to temper embrittlement and effects of mean stress on the growth rate have been examined and comparisons between temper embrittled and unembrittled conditions have been made.About:
This article is published in Acta Metallurgica.The article was published on 1973-05-01. It has received 242 citations till now. The article focuses on the topics: Crack closure & Paris' law.read more
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Mechanisms of fatigue-crack propagation in ductile and brittle solids
TL;DR: In this article, the authors examined the mechanisms of fatigue-crack propagation with particular emphasis on the similarities and differences between cyclic crack growth in ductile materials such as metals, and corresponding behavior in brittle materials, such as intermetallics and ceramics.
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The influence of environment and stress ratio on fatigue crack growth at near threshold stress intensities in low-alloy steels
TL;DR: In this paper, the influence of stress ratio and strength level on the growth of fatigue cracks in low alloy steels was studied in a variety of environments with particular emphasis being placed on the influence on the strength level and stress ratio.
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Influence of microstructure on near-threshold fatigue-crack propagation in ultra-high strength steel
TL;DR: In this paper, the authors investigated the influence of microstructure on fatigue fracture behavior near the threshold stress intensity, ∆K 0 below which crack growth cannot be detected, and showed that near-threshold crack -growth resistance can be improved by cyclic softening, coarsening the prior austenite grain size, and (iii)...
Journal ArticleDOI
Effect of load ratio and maximum stress intensity on the fatigue threshold in Ti–6Al–4V
Brad L. Boyce,R.O. Ritchie +1 more
TL;DR: In this paper, the authors examined the effect of a wide range of loading frequencies and load ratios on fatigue-crack propagation and threshold behavior in a Ti-6Al-4V turbine blade alloy consisting of ∼60 vol% primary-α and ∼40 vol% lamellar α+β.
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Near-threshold fatigue-crack propagation in steels
TL;DR: In this article, the effects of various mechanical, microstructural, and environmental factors which influence fatigue-crack propagation in steels at growth rates less than 10-6 mm/cycle, where the alternating stress intensity approaches the so-called threshold stress intensity ∆K0 below which crack growth cannot be experimentally detected.
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Journal ArticleDOI
Crack propagation in high stress fatigue
C. Laird,G. C. Smith +1 more
TL;DR: In this article, an examination of the fracture surfaces of ductile metal specimens broken in high stress fatigue has revealed the occurrence of fracture ripples similar in appearance to those resulting from low stresses, but considerably larger.
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A fracture mechanics analysis of fatigue crack growth data for various materials
N.E. Frost,L.P. Pook,K. Denton +2 more
TL;DR: In this paper, a large amount of previously published fatigue crack growth data obtained from 10 in. wide center-cracked sheet specimens of various materials has been re-analysed in terms of the range of stress intensity factor ( ΔK ) and the results presented as master curves of crack growth rate against ΔK.
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Effect of stress ratio on fatigue-crack growth in 7075-T6 aluminum-alloy sheet
TL;DR: In this article, the effects of stress ratio on fatigue-crack growth were analyzed using Paris' stress-intensity analysis, and the results from the R = 0 tests on a plot of rate against stressintensity range.