Fatigue crack growth thresholds of deflected mixed-mode cracks in PWA1484

Authors :: K.S. Chan
Feiger, J.
Y.-D. Lee
John, R.
Hudak, S. J.
Source :: Journal of Engineering Materials and Technology. Jan, 2005, Vol. 127 Issue 1, 2-6
Publication Year :: 2005
Abstract: The fatigue crack growth (FCG) behavior of PWA1484 single crystals was characterized in air under mixed-mode loading at 593 degree Celsius as a function of crystallographic orientation using an asymmetric four-point bend test technique. Most mixed-mode fatigue cracks deflected from the symmetry plane and propagated as transprecipitate, noncrystallographic cracks.