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New Pt-based Superalloy System Designed from First Principles

  • Vsevolod I. Razumovskiy (a1) (a2), Eyvaz I. Isaev (a2) (a3) (a4), Andrei V. Ruban (a1) and Pavel A. Korzhavyi (a1)

Abstract

Pt-Sc alloys with the γ-γ′ microstructure are proposed as a basis for a new generation of Pt-based superalloys for ultrahigh-temperature applications. This alloy system was identified on the basis of first-principles calculations. Here we discuss the prospects of the Pt-Sc alloy system on the basis of calculated elastic properties, phonon spectra, and defect formation energies.

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New Pt-based Superalloy System Designed from First Principles

  • Vsevolod I. Razumovskiy (a1) (a2), Eyvaz I. Isaev (a2) (a3) (a4), Andrei V. Ruban (a1) and Pavel A. Korzhavyi (a1)

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