Prediction of initial oxidation behavior of Ni-base single crystal superalloys by regression analysis

Regression analysis was performed for 63 binary, ternary and multi-component Ni-base superalloys to predict initial oxidation behavior. Empirical equations obtained from regression analysis, and used for predicting the weight change of alloys after one cycle at 1100 °C, could be applied to all generations of Ni-base superalloys. One equation exhibited excellent agreement between observed and calculated weight changes. The alloys that were applicable for this equation therefore had a compositional dependence.

► Regression analysis for Ni-base superalloys to predict initial oxidation behavior.
► Empirical equations applicable to all generations of Ni-base superalloys.
► Excellent agreement between observed and calculated weight changes.
► The alloys that were applicable for this equation had a compositional dependence.