Journal Article

PUBDB-2026-00608

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The mechanisms underlying the enhanced high-temperature properties of GRX-810

Smith, T. M. ; Kantzos, C. A. ; Harder, B. J. ; Bezold, A.Extern* ; Heczko, M. ; Miao, J. ; Plummer, G. ; Mendelev, M. I. ; Thompson, A. C. ; Puleo, B. J. ; Whitt, A. J. ; Stark, A.Extern*Hereon* ; Neumeier, S. ; Gabb, T. P. ; Lawson, J. W. ; Mills, M. J. ; Gradl, P. R.

2026
Springer Nature [London]

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Please use a persistent id in citations: doi:10.1038/s41467-025-67687-4

Abstract: The demand for metal alloys that can perform at extreme temperatures above1100 °C while remaining manufacturable has sparked renewed interest inprintable oxide dispersion strengthened (ODS) alloys. Recently, NASA devel-oped an ODS alloy designed for additive manufacturing, known as GRX-810,which has demonstrated exceptional tensile and creep performance at tem-peratures of 1093 °C and higher. In the present study, tensile tests of GRX-810are conducted up to 1316 °C and creep tests are performed in both the hor-izontal and vertical orientations, relative to the build direction. Thermalcycling is executed at 1100 °C, 1200 °C, and 1300 °C in air. The oxidationbehavior of GRX-810 is compared to that of alumina forming single crystal Ni-base superalloys and chromia-forming wrought alloys such as superalloys 718and 625. High resolution atomic-scale characterization and atomistic modelingare employed to explain the exceptional high temperature propertiesobserved in GRX-810, particularly in relation to the unique, finer trigonalyttrium oxides produced during the additive manufacturing process

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Contributing Institute(s):

1. FS DOOR-User (FS DOOR-User)
2. Helmholtz-Zentrum Hereon (Hereon)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2026

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