The failed blades were made of Inconel 718 which is a Ni–Cr–Fe–Nb alloy fulfilling good mechanical properties such as high tensile and yield strength, significant rupture strengths and good resistance to mechanical fatigue.
The failed blades were made of Inconel 718 which is a Ni–Cr–Fe–Nb alloy fulfilling good mechanical properties such ashigh tensile and yield strength, significant rupture strengths and good resistance to mechanical fatigue.