The mechanisms underlying the enhanced high-temperature properties of GRX-810

Smith TM, Kantzos CA, Harder BJ, Bezold A, Heczko M, Miao J, Plummer G, Mendelev MI, Thompson AC, Puleo BJ, Whitt AJ, Stark A, Neumeier S, Gabb TP, Lawson JW, Mills MJ, Gradl PR (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 17

Article Number: 963

Journal Issue: 1

DOI: 10.1038/s41467-025-67687-4

Abstract

The demand for metal alloys that can perform at extreme temperatures above 1100 °C while remaining manufacturable has sparked renewed interest in printable oxide dispersion strengthened (ODS) alloys. Recently, NASA developed an ODS alloy designed for additive manufacturing, known as GRX-810, which has demonstrated exceptional tensile and creep performance at temperatures of 1093 °C and higher. In the present study, tensile tests of GRX-810 are conducted up to 1316 °C and creep tests are performed in both the horizontal and vertical orientations, relative to the build direction. Thermal cycling is executed at 1100 °C, 1200 °C, and 1300 °C in air. The oxidation behavior of GRX-810 is compared to that of alumina forming single crystal Ni-base superalloys and chromia-forming wrought alloys such as superalloys 718 and 625. High resolution atomic-scale characterization and atomistic modeling are employed to explain the exceptional high temperature properties observed in GRX-810, particularly in relation to the unique, finer trigonal yttrium oxides produced during the additive manufacturing process.

Authors with CRIS profile

Steffen Neumeier Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Involved external institutions

National Aeronautics and Space Administration (NASA) US United States (USA) (US) Ohio State University US United States (USA) (US) HX5, LLC US United States (USA) (US) Helmholtz-Zentrum Hereon DE Germany (DE)

How to cite

APA:

Smith, T.M., Kantzos, C.A., Harder, B.J., Bezold, A., Heczko, M., Miao, J.,... Gradl, P.R. (2026). The mechanisms underlying the enhanced high-temperature properties of GRX-810. Nature Communications, 17(1). https://doi.org/10.1038/s41467-025-67687-4

MLA:

Smith, Timothy M., et al. "The mechanisms underlying the enhanced high-temperature properties of GRX-810." Nature Communications 17.1 (2026).

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