Oxide dispersion strengthened alloys (ODS) are alloys that consist of a metal matrix with small oxide particles dispersed within it. They have high heat resistance, strength, and ductility . Alloys of nickel are the most common but includes iron aluminum alloys.

2023年3月1日 · Oxide dispersion strengthened (ODS) alloys are characterized by nanoscale oxide particles homogeneously dispersed in a metallic matrix. They have been…

Iron-based and nickel-based oxide dispersion strengthened alloys exhibit good corrosion resistance and mechanical properties at elevated temperatures. These alloys also show excellent creep resistance, which stems partly from the dispersion of oxide and other particles, and partly from the very large elongated grain structure.

Oxide dispersion-strengthened (ODS) alloys rely on the strength of secondary-phase particles such as refractory oxides (i.e., Y2O3, Al2O3, HfO2, and ThO2), which results in the dispersion strengthening γ’ phase.

This report describes the ODS alloy processing routes combining AM processes and post-build thermomechanical treatments, mechanical and microstructural characteristics of the newly developed materials, and the application results of the decision criteria matrix for the additively

Strengthened (ODS) alloys have excellent potential for use in next-generation high-temperature applications where superior creep strength and oxidation resistance compared to current alloys is required.

2024年4月26日 · Here we present a strategy to achieve ODS Al alloys containing highly dispersive 5 nm MgO nanoparticles by powder metallurgy, using nanoparticles that have in situ-grown graphene-like...

Innovators at the NASA Glenn Research Center have developed a new oxide dispersion strengthened medium entropy alloy (ODS-MEA) using additive manufacturing (AM). ODS alloys, in which nano-scale ceramic particles are distributed within the metal, were originally developed to enhance mechanical properties (e.g., creep resistance, tensile strength ...

The compositions and physical properties of two commercially-available oxide dispersion strengthened (ODS) alloys (one iron-based, the other nickel-based) are given in the tables below.

Early results from AM ODS alloy NX810 show a 2X improvement in strength, 3.5X improvement in ductility, and a 200X improvement in creep rupture life over conventional superalloys!