|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Mechanical Behavior and Degradation of Advanced Nuclear Fuel and Structural Materials
||Effects of Steel Composition and Grain Size on Diffusion with Neodymium
||Brian Bettes, Yi Xie
|On-Site Speaker (Planned)
Investigations into the nuclear fuel-cladding chemical interactions between neodymium and four steels were conducted via diffusion couple experiments. The effects of steel composition and grain size were of primary interest in this investigation. Neodymium was chosen for these tests because it constitutes the highest concentration of lanthanide fission products present in irradiated metallic fuel. The four steels were conventional type 316 stainless steel (C316), advanced manufactured steel (A316) that is in the same composition as C316 but a larger grain size, iron-chromium (Fe-Cr) based oxide dispersion-strengthened (ODS) steel, and iron-chromium-nickel (Fe-Cr-Ni) based ODS steel. Variation in grain size between A316 and C316 was found to have significant effects on the diffusion of Fe and Ni from the alloys. Diffusion mechanisms were found to be enhanced by the presence of Ni, which was highly reactive with Nd.
||Nuclear Materials, Iron and Steel, Phase Transformations