Corrosion fatigue crack propagation of a duplex stainless steel X6 Cr Ni Mo Cu 25-6 in air and in artificial sea water
Fatigue crack growth behavior of a duplex stainless steel has been investigated at a stress
ratio of 0.1, in air environment at room temperature and in artificial sea water heated to 70°
C. Growth rates generated under constant load amplitude at a frequency of 0.1 Hz under
corrosion fatigue were found to be about 1.7 orders of magnitude higher than those
generated in air environment. The study of the crack propagation under both conditions has
revealed a significant change in fracture mechanisms between both environments. In air …
ratio of 0.1, in air environment at room temperature and in artificial sea water heated to 70°
C. Growth rates generated under constant load amplitude at a frequency of 0.1 Hz under
corrosion fatigue were found to be about 1.7 orders of magnitude higher than those
generated in air environment. The study of the crack propagation under both conditions has
revealed a significant change in fracture mechanisms between both environments. In air …