Abstract
The techniques of linear-elastic fracture mechanics were employed to characterize the effect of temperature upon the fatigue-crack propagation behavior of Nimonic PE16 in an air environment over the range 24–649°C. In general, crack growth rates increased with increasing test temperature. Curves of log(da/dN) versus log(ΔK) were generally sigmoidal in shape and in general did not obey a simple linear power law.
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