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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Phase Stability in Extreme Environments II
Presentation Title Impact of Build/Print Variations on Steam Oxidation Performance of 316L Stainless Steel
Author(s) Elizabeth S. Sooby, Scott Schier, Ana Stevanovic, Brian J. Jaques, Patrick Warren
On-Site Speaker (Planned) Patrick Warren
Abstract Scope Additive manufacturing (AM) has emerged as a promising solution for the high-throughput fabrication of unique and complex geometries required in the construction of nuclear reactors. The inherent complexities of the AM process can result in unexpected material properties and performance, necessitating further research. In this study, we investigate the effects of various build conditions (laser energy and spatter deposition) on defect formation and steam oxidation kinetics, while implementing in-situ part identification throughout the entire process. Our focus is on characterizing oxidized AM 316LSS samples subjected to high-temperature steam environments (<65% pH2O) at 800C using both surface and cross-sectional characterization techniques like Scanning Electron Microscopy (SEM) and Raman. SEM provides detailed microstructural characterization of surface and cross-sectional features, including oxide films and pitting defects. Raman spectroscopy analysis is employed to determine the chemical composition of the polished/passivated surface oxides that form on the samples. By correlating materials characterization and testing with print parameters, print orientation, sample history, and thermal conditions, we aim to enhance our understanding of the relevant performance properties for high temperature steam exposed applications. The findings of this study highlight the potential of AM in the construction of reliable and safe nuclear reactors, leveraging in-situ part qualification.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Manufacturing and Sensor Integration for Smart Sensing on Nuclear Packages
Atomic-scale Understanding of the Hydrogen Embrittlement Mechanism in Model and Commercial Austenitic Steels Using Cryogenic Transfer Atom Probe Tomography
Behavior of Tritium Breeder Ceramics under Ion Irradiation
Degradation Mechanisms of Steels and Ni-based Alloys in Hydrogen/Water Vapor High Temperature Environments
Development of Novel Intermetallic Dispersion Strengthened Steels
Effect of Damage, Temperature, and Helium on Irradiated Nanoprecipitation in Advanced Ferritic/Martensitic (F/M) Fe9Cr Steel
Effect of Hydrogen on the Phase Stability of Steels
Effect of Surface Orientation on the Oxidation of Ni-based Single-crystal Superalloys Using Ab Initio Simulations
Effects of Microstructural Variance on Edge Dislocation Mobility and Pinning in Nickel Superalloys at High Temperatures
Exceptional Fatigue Strength of a Microstructurally Stable Bulk Nanocrystalline Alloy
Exploring and Quantifying Degradation Mechanisms in Irradiated Structural Materials
Frictional Ignition of Dispersion-strengthened Ni-base Superalloys in High Pressure Oxygen Environments
Impact of Build/Print Variations on Steam Oxidation Performance of 316L Stainless Steel
Improving Radiation Resistance in Metal Alloys via the Use of Multiple Synergistic Solutes
Investigating the Coupling between Short-range Order and Radiation Damage in Multi-component Alloys
Metastability-driven design of AM Al-based Superalloys
Microstructural Evolution and Hardness Changes in Ion Irradiated Ni-based Superalloys
Microstructure Evolution in Cr0.5FeNiMn and CrFeNiCoPd0.75 Alloys under Ion Irradiation
Non-ideality of Hydrogen Isotope Permeation in Metals & Alloys
Phase-field-informed Crystal-plasticity Modeling of 3D γ’ Rafting in Ni-based Single-crystal Superalloys
Precipitate Evolution and Stability in Superalloy 718 Following HFIR Irradiation or Thermal Aging
Radiation-induced Partial Disordering of Heusler Phase in Intermetallic Dispersion Strengthened Ferritic Superalloys
Stability of Hydrogen/Helium-filled Nanocavities in Structural Alloys after Low Temperature Irradiation with Simultaneous High Energy Protons and Spallation Neutron
Stability of Nanoporous Ultra-High Temperature Ceramics at High Temperatures
Superior Radiation Resistance and Structural Stability in Nanotwinned High Entropy Thin Film under Extreme Radiation Damage
The Effect of Alloying Elements and Atmosphere on the Oxidation of NiCr Model Alloys
The Less Understood Impact of Environmental Degradation on Phase Stabilities in High Temperature Alloys

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