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Evaluation of giga‐cycle fatigue properties of some maraging steels by intermittent ultrasonic fatigue testing
Author(s) -
ISHII H.,
YAGASAKI T.,
AKAGI H.
Publication year - 2002
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1046/j.1460-2695.2002.00561.x
Subject(s) - materials science , fatigue testing , fatigue limit , maraging steel , ultrasonic sensor , metallurgy , structural engineering , composite material , engineering , physics , acoustics
In evaluating the giga‐cycle fatigue strength of some high strength steels, information on the size distribution of nonmetallic inclusions contained in the material is indispensable. To save time and effort of obtaining such data concerning the inclusions, a convenient dissolution method to evaluate the maximum inclusion size is proposed, in place of a conventional method of measuring the inclusion sizes on many cross‐sectional areas. Meanwhile, to save time‐consuming work of obtaining giga‐cycle fatigue properties of some metallic materials, an intermittent ultrasonic fatigue testing method has also been developed. In the present paper, these two newly developed methods were successfully combined to assess the long life fatigue properties of maraging steels as a function of inclusion size.