TY  - JOUR
AU  - Smith, Timothy M.
AU  - Kantzos, Christopher A.
AU  - Harder, Bryan J.
AU  - Bezold, Andreas
AU  - Heczko, Milan
AU  - Miao, Jiashi
AU  - Plummer, Gabriel
AU  - Mendelev, Mikhail I.
AU  - Thompson, Aaron C.
AU  - Puleo, Bernadette J.
AU  - Whitt, Austin J.
AU  - Stark, Andreas
AU  - Neumeier, Steffen
AU  - Gabb, Timothy P.
AU  - Lawson, John W.
AU  - Mills, Michael J.
AU  - Gradl, Paul R.
TI  - The mechanisms underlying the enhanced high-temperature properties of GRX-810
JO  - Nature Communications
VL  - 17
IS  - 963
SN  - 2041-1723
CY  - [London]
PB  - Springer Nature
M1  - PUBDB-2026-00608
SP  - 1-14
PY  - 2026
AB  - 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
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1038/s41467-025-67687-4
UR  - https://bib-pubdb1.desy.de/record/645113
ER  -