The mechanisms underlying the enhanced high-temperature properties of GRX-810
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
- Milan Heczko
- Christopher Kantzos
- Aaron C. Thompson
- Bryan J. Harder (ORCID: https://orcid.org/0000-0002-5304-5267)
- Timothy M. Smith (ORCID: https://orcid.org/0000-0002-6568-9721)
- Gabriel Plummer (ORCID: https://orcid.org/0000-0002-9330-9028)
- Andreas Stark (ORCID: https://orcid.org/0000-0002-1249-7937)
- Steffen Neumeier (ORCID: https://orcid.org/0000-0001-7853-0368)
- Paul Gradl (ORCID: https://orcid.org/0000-0002-2861-3410)
- Jiashi Miao (ORCID: https://orcid.org/0000-0002-9440-6671)
- Mikhail I. Mendelev (ORCID: https://orcid.org/0000-0002-1841-1073)
- Bernadette J. Puleo
- Andreas Bezold (ORCID: https://orcid.org/0000-0001-8093-3588)
- John Lawson (ORCID: https://orcid.org/0000-0003-0309-7234)
- Michael J. Mills
- Timothy P. Gabb
- Austin J Whitt
Institutions
- Ames Research Center (US)
- Marshall Space Flight Center (US)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Glenn Research Center (US)
- Helmholtz-Zentrum Hereon (DE)
- The Ohio State University (US)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-12-14
- DOI
- https://doi.org/10.1038/s41467-025-67687-4
- Citations
- 2
- Primary Topic
- Fusion materials and technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- National Science Foundation
- National Aeronautics and Space Administration
- Aeronautics Research Mission Directorate
- Space Technology Mission Directorate
- Deutsches Elektronen-Synchrotron