Fatigue crack growth behavior of a Zr–Ti–Cu–Ni–Be bulk metallic glass: Role of ambient air environment

The fatigue crack growth behavior of a Zr44Ti11Ni10Cu10Be25 bulk metallic glass (BMG) was measured in an inert dry N2 environment. When compared to results measured in ambient air, the present results showed a higher fatigue threshold and lower crack growth rates in the near-threshold region. Such results reveal that there is a significant effect of ambient air in accelerating fatigue crack growth for this BMG.