TY - JOUR
T1 - Thermally activated processes of fatigue crack growth in steels
AU - Tanaka, Masaki
AU - Fujii, Atsushi
AU - Noguchi, Hiroshi
AU - Higashida, Kenji
N1 - Funding Information:
Part of this work was supported by JSPS KAKENHI [grant number 24686079], [grant number 22246090].
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/2/1
Y1 - 2014/2/1
N2 - Fatigue crack growth rates in steels at high and low temperatures have been investigated using Paris curves. The fatigue crack growth rates at high temperatures are quite different from those at low temperatures. Arrhenius plots between fatigue crack growth rate (da/dN) and test temperatures at constant stress intensity factor range (ΔKI) indicate a difference of the rate-controlling process for fatigue crack growth with temperature. Slip deformation at the crack tip governs fatigue crack growth at high temperatures, while hydrogen diffusion is associated with crack growth at low temperatures.
AB - Fatigue crack growth rates in steels at high and low temperatures have been investigated using Paris curves. The fatigue crack growth rates at high temperatures are quite different from those at low temperatures. Arrhenius plots between fatigue crack growth rate (da/dN) and test temperatures at constant stress intensity factor range (ΔKI) indicate a difference of the rate-controlling process for fatigue crack growth with temperature. Slip deformation at the crack tip governs fatigue crack growth at high temperatures, while hydrogen diffusion is associated with crack growth at low temperatures.
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U2 - 10.1080/09500839.2013.872811
DO - 10.1080/09500839.2013.872811
M3 - Article
AN - SCOPUS:84894875497
VL - 94
SP - 95
EP - 102
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
SN - 0950-0839
IS - 2
ER -