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The influence of tempering martensite containing microstructures on the near threshold fatigue crack propagation behaviour

✍ Scribed by J.H. Bulloch

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
870 KB
Volume
9
Category
Article
ISSN
0167-8442

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Centrally cracked specimens of JIS SM58Q and I-IT80 steels were fatigued. The fatigue crack growth rates, da/dn, and the stress intensity threshold levels, AK,, were measured over the range of stress ratio, R, from -1 to 0.8 by the use of an automatic method of continuously decreasing stress intensi