PSI - Issue 2_A

6

Author name / Structural Integrity Procedia 00 (2016) 000–000

F. Felli et al. / Procedia Structural Integrity 2 (2016) 2966–2973

2971

Fig. 7 SEM micrograph of flake, generated from final crack, highlighting a brittle fracture

Fig.8 Fatigue crack propagation rate vs. Δ K

From observations and performed experimental tests, lamellar cast iron appears not useful for these critical applications. It presents an intrinsic brittleness (very low K IC values). Thus it is easy that fractures can occur on cast