A5082980319- Nuclear Materials and Properties
- Fusion materials and technologies
- High-Temperature Coating Behaviors
- Nuclear reactor physics and engineering
- High Temperature Alloys and Creep
- Metal Alloys Wear and Properties
- Microstructure and Mechanical Properties of Steels
- Advanced Materials Characterization Techniques
- High Entropy Alloys Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Microstructure and mechanical properties
- Metallurgical Processes and Thermodynamics
- Ion-surface interactions and analysis
- Machine Learning in Materials Science
- Aluminum Alloy Microstructure Properties
- Additive Manufacturing Materials and Processes
- Intermetallics and Advanced Alloy Properties
- Gaussian Processes and Bayesian Inference
- Thermodynamic and Structural Properties of Metals and Alloys
- Metallurgy and Material Science
- Powder Metallurgy Techniques and Materials
- Metallurgy and Material Forming
- Fault Detection and Control Systems
- Time Series Analysis and Forecasting
- Metallurgical and Alloy Processes
Missouri University of Science and Technology
2018-2024
General Electric (United States)
2020-2024
GE Global Research (United States)
2021-2024
GE Vernova (United States)
2024
General Electric (Norway)
2022-2023
Idaho State University
2017
FeCrAl alloys are being investigated as candidate materials for light water reactor fuel claddings. The chemical composition of determines its resistance to corrosion under normal operating conditions. purpose this paper is investigate the effect 0, 1, 3 wt% Ni addition on passivation characteristics Fe17Cr5.5Al in oxygenated and hydrogenated simulated waters 3-month immersion. Current results show that improves condition decreases mass loss
The effect of aluminum in the FeCr(Al) alloys on corrosion behavior was studied at two temperatures (400 °C and 1200 °C). For Fe-21Cr alloy, Cr2O3 layer formed upon exposure to both temperatures. addition Al altered mechanism alloy. At °C, a thin α-Al2O3 is Fe-21Cr-5.5Al Whereas, low temperature, continuous top with an internal Al2O3 layer. These results show that FeCrAl hold promise as Fuel Cladding Materials playing crucial role under operational well accident-like conditions.
Accident tolerant cladding materials should have improved properties under the LOCA conditions. FeCrAl alloys are promising with high-temperature steam oxidation resistance. Little efforts been put into understanding compositional effects on performance of at operating This work focuses effect Al concentration in three Fe-17Cr-xAl resistance 400 °C environment. study shows that increased reduces total oxide thickness, enhances formation a uniform Cr-oxide layer. and sufficient allows for...
A primary challenge of using FeCrAl in high temperature industrial settings is the formation α′-precipitates that causes brittleness alloy, resulting failure through fracture. The precipitation hardness change during thermal aging which sensitive to both alloy composition and experimental condition (i.e., time heat treatment). Gaussian Process Regression (GPR) model built on data collected at GE Research. Subsequently, for first time, SHapley Additive exPlanations (SHAP) upon GPR used as an...
Abstract FeCrAl alloys are a leading candidate material for accident tolerant fuel cladding due to their good performance in both normal light-water reactor operating conditions as well resilience high-temperature scenarios. For commercial-scale production, new fabrication techniques need be investigated. In this study, the effects of methods on steam oxidation C26M (Fe12Cr6Al2Mo wt.%) were Three variants manufactured: wrought (cast and forged) (WC26M), powder metallurgy hot isostatic...
FeCrAl alloys are among the most promising candidates for accident-tolerant fuel cladding material in light water nuclear reactors. Despite their high-temperature oxidation resistance corrosive environments coupled with hydrothermal corrosion resistance, a key challenge remains optimizing composition of alloy that can be achieved through statistical analysis. However, current literature on design lack studies designing based resistance. This study addresses gap by developing predictive model...
FeCrAl alloys are promising candidates for next generation nuclear fuel cladding applications due to their high resistance hydrothermal corrosion, temperature steam oxidation, fretting, and creep properties. However, a potential area of concern is the precipitation Cr-enriched α’ phase which could have an implication on mechanical, oxidative degradation as well electrochemical behavior. Studies in this limited since most past been temperatures above miscibility gap. In work, we investigate...
Given the focus on developing novel accident-tolerant materials for nuclear fuel cladding applications, FeCrAl alloys have been considered as one of promising candidates. To optimize composition alloys, systematic studies are necessary to understand elemental effect oxidation behavior at normal and accident conditions. This work focuses understanding how presence 3 wt.% 8 Al in a Fe-21Cr alloy affects their steam mechanisms oxide architecture environment 400°C 1200°C. Results show that...
Iron-Chromium-Aluminum (FeCrAl) alloys are candidate materials for the cladding of light water reactor (LWR) fuels. The FeCrAl in general range Cr composition from 12% (C26M) to 21% (APMT). In this work, corrosion behavior Additively Manufactured (AM) C26M coupons was compared traditional Powder Metallurgy (PM) coupons. Immersion testing were conducted 12 months at 288 °C and 330 pure containing either oxygen or hydrogen. Results show that mass change AM specimens hydrogenated like PM...
Abstract The oxidation resistance of FeCrAl based on alloying composition and oxidizing conditions is predicted using a combinatorial experimental artificial intelligence approach. A neural network (NN) classification model was trained the dataset produced at GE Research. Furthermore, SHapley Additive exPlanations (SHAP) explainable (XAI) tool, we explore how NN can showcase further material insights that are unavailable directly from black-box model. We report high Al Cr content forms...
The coupling of artificial intelligence and materials characterizations has been a center piece almost all discovery efforts since 1990. Furthermore, with the constant development in probabilistic machine learning tools (i.e. models that can efficiently propagate uncertainty from inputs to outputs), synergistic interplay between expert knowledge model accuracy major driver for state-of-the-art research. However, there still exist challenges facing community today when it comes discovery. Be...
Abstract Traditionally, FeCrAl alloys played an important role in high-temperature applications due to their ability form a passive Al oxide film at temperatures above ~ 800 °C. Recently, became of interest for the application accident tolerant nuclear fuel cladding. This study covers work done GE Research better understanding Al, Cr, and Mo oxidation kinetics thermodynamics. Several models commercial prototype have been tested hydrothermal corrosion autoclave loops, low temperature steam...