Guided design of alloys, strengthened via precipitation

ORAL

Abstract

Using theoretical and computational guidance, we are designing stronger middle and high-entropy alloys and superalloys for the airspace applications. We focus on improving mechanical properties of materials at cryogenic and elevated temperatures. Here we discuss basic science and fundamental theory that are being used for guided design of next-generation alloys. As examples, we consider the medium-entropy NiCoCr alloy and precipitated superalloys with a local phase transformation strengthening.

*This research is funded by NASA's Aeronautics Research Mission Directorate (ARMD) via Transformational Tools and Technologies (TTT) Project.

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Publication: T.M. Smith, N.A. Zarkevich, A.J. Egan, J. Stuckner, T.P. Gabb, J.W. Lawson, and M.J. Mills. "Utilizing local phase transformation strengthening for nickel-base superalloys", Commun Mater 2, 106 (2021). https://doi.org/10.1038/s43246-021-00210-6

Presenters

  • Nikolai A Zarkevich

    • NASA Ames Research Center

Authors

  • Nikolai A Zarkevich

    • NASA Ames Research Center