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

• Published in: Scripta materialia Vol. 65; no. 1; pp. 49 - 52
• Main Authors: Suzuki, A.S., Kawagishi, K., Yokokawa, T., Harada, H., Kobayashi, T.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-06-2011
• Subjects: Alloys; Empirical equations; Initial oxidation; Mathematical analysis; Nickel; Nickel base alloys; Nickel-base superalloy; Oxidation; Oxidation behavior; Prediction; Regression analysis; Superalloys; Nickel-base superalloy; Oxidation behavior; Initial oxidation; Prediction
• ISSN: 1359-6462; 1872-8456
• DOI: 10.1016/j.scriptamat.2011.03.007

► 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.
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.