Electronic structures and materials properties calculations of Ni and Ni-based superalloys

Chelsey Z. Hargather, Shun Li Shang, Zi Kui Liu

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

This chapter begins an Integrated Computational Materials Engineering (ICME) discussion about face-centered cubic (FCC) materials with a focus on nickel (Ni) and particularly on Ni-base superalloys, comprised primarily of Ni and up to ten other alloying elements. The first application is to the CALculation of PHAse Diagram (CALPHAD approach) to demonstrate how thermodynamic databases can be supplemented with electronic structure calculations to better predict phase stability in Ni alloy systems. The second application involves utilizing a secondary creep rate model to ultimately rank the effectiveness of elements that can be used to improve Ni-base superalloys. The chapter shows that first-principles calculations based on density functional theory (DFT) can lay the groundwork for Ni-base superalloy design at higher length scales. It demonstrates the wide variety of types of data generated by first-principles calculations, from bulk thermodynamic data, to mechanical properties, to kinetic properties.

Original languageEnglish (US)
Title of host publicationIntegrated Computational Materials Engineering (ICME) for Metals
Subtitle of host publicationConcepts and Case Studies
Publisherwiley
Pages413-446
Number of pages34
ISBN (Electronic)9781119018377
ISBN (Print)9781119018360
DOIs
StatePublished - Jan 1 2017

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Engineering(all)
  • Materials Science(all)

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    Hargather, C. Z., Shang, S. L., & Liu, Z. K. (2017). Electronic structures and materials properties calculations of Ni and Ni-based superalloys. In Integrated Computational Materials Engineering (ICME) for Metals: Concepts and Case Studies (pp. 413-446). wiley. https://doi.org/10.1002/9781119018377.ch12