David Marsella, “High-Temperature Oxidation Comparison of Additively Manufactured NiCoCr Alloys”
Mentor: William Musinski, Materials Science & Engineering
Poster #123

A significant amount of work is being done to find new alloys and manufacturing processes to improve performance in high temperature environments. A well known alloying process, Oxide Dispersion Strengthening (ODS), is difficult to manufacture using traditional methods. Recently, a new process was developed involving Additive Manufacturing (AM), that potentially drastically reduces the issues with producing ODS materials. This study seeks to compare the oxidation properties of ODS AM Nickel Cobalt Chromium (NiCoCr) with non-ODS AM NiCoCr. Samples were placed in a furnace and heated to temperatures ranging from 900° C to 1200° C and held for a period of time. Additional samples were placed in the furnace under a steam environment, and underwent several heating and cooling cycles. The samples were then characterized using X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) to compare their oxidations. Initial post-oxidation characterization of the first samples shows significant improvement of the ODS samples to handle high temperatures over the non-ODS samples.