biostudies-literatureUnknown17(1)Smith TMThe 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 sucNature communications963https://www.ebi.ac.uk/biostudies/studies/S-EPMC12847880biostudies-literatureThe mechanisms underlying the enhanced high-temperature properties of GRX-810.PMC12847880Whitt AJHeczko MPlummer GLawson JWMiao JHarder BJMendelev MIGabb TPBezold ANeumeier SPuleo BJGradl PRStark AKantzos CAThompson ACMills MJSmith TMfalseThe 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 suc2025-01-01T00:00:00Z2025 Dec2026-06-09T05:45:58.596Z2026-06-09T03:08:03.68ZS-EPMC128478804139204710.1038/s41467-025-67687-4