David E. Alman
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View article: Developing reliable machine learning interatomic potential for Fe–Cr–Ni austenitic alloys
Developing reliable machine learning interatomic potential for Fe–Cr–Ni austenitic alloys Open
Gaining atomistic understanding of mechanical behavior of heat-resistant structural materials such as Fe–Cr–Ni-based alloys requires an approach with an accuracy close to density functional theory (DFT) that considers the intrinsic propert…
View article: Characterization of Precipitation-Strengthening Heat-Resistant Austenitic Stainless Steels for Life-Prediction Modeling
Characterization of Precipitation-Strengthening Heat-Resistant Austenitic Stainless Steels for Life-Prediction Modeling Open
In this study, the role of minor alloying additions in 347H stainless steels (UNS34709, ASTM A240/240M) on creep-rupture properties at 650-750°C and microstructure evolution during isothermal exposure at 750°C has been investigated, aiming…
View article: Final Scientific/Technical Report Rapid Design and Manufacturing of High-Performance Materials for Turbine Blades
Final Scientific/Technical Report Rapid Design and Manufacturing of High-Performance Materials for Turbine Blades Open
This research demonstrated the concept of carbide precipitation-strengthened refractory high entropy alloys (RHEA). The advantage of a precipitation strengthened alloy is all phases are in thermodynamic equilibrium promoting microstructura…
View article: 9 Cr-- 1 Mo steel material for high temperature application
9 Cr-- 1 Mo steel material for high temperature application Open
One or more embodiments relates to a high-temperature, titanium alloyed, 9 Cr-1 Mo steel exhibiting improved creep strength and oxidation resistance at service temperatures up to 650.degree. C. The 9 Cr-1 Mo steel has a tempered martensite…
View article: Heat treated 9 Cr-1 Mo steel material for high temperature application
Heat treated 9 Cr-1 Mo steel material for high temperature application Open
The invention relates to a composition and heat treatment for a high-temperature, titanium alloyed, 9 Cr-1 Mo steel exhibiting improved creep strength and oxidation resistance at service temperatures up to 650.degree. C. The novel combinat…
View article: Cooperative Research and Development Agreement between National Energy Technology Laboratory and ATI Specialty Alloys & Components (Abstract)
Cooperative Research and Development Agreement between National Energy Technology Laboratory and ATI Specialty Alloys & Components (Abstract) Open
The National Energy Technology Laboratory (NETL) and ATI will collaborate on improving the computational capabilities for predicting elevated temperature strength and phase stability for refractory-based alloys. Increasing the efficiency a…
View article: Machine‐Learning Microstructure for Inverse Material Design
Machine‐Learning Microstructure for Inverse Material Design Open
Metallurgy and material design have thousands of years’ history and have played a critical role in the civilization process of humankind. The traditional trial‐and‐error method has been unprecedentedly challenged in the modern era when the…
View article: Materials Engineering & Manufacturing Research
Materials Engineering & Manufacturing Research Open
The Department of Energy’s (DOE) National Energy Technology Laboratory’s (NETL) Materials Engineering and Manufacturing (MEM) Core Competency Directorate delivers functional and structural materials solutions to enable advanced energy syst…
View article: Materials Challenges and Opportunities for Energy Generation, Conversion, Delivery, and Storage (Applied Energy Tri-Laboratory Consortium Workshop Report)
Materials Challenges and Opportunities for Energy Generation, Conversion, Delivery, and Storage (Applied Energy Tri-Laboratory Consortium Workshop Report) Open
This report documents the outcomes of the Tri-Laboratory Materials Workshop that was held July 31 and August 1, 2019 to begin addressing the needs, opportunities, and challenges associated with the development, fabrication, and testing of …
View article: Cooperative Research and Development Agreement between National Energy Technology Laboratory and Ampere Scientific [Abstract]
Cooperative Research and Development Agreement between National Energy Technology Laboratory and Ampere Scientific [Abstract] Open
Electro-Slag-Remelting (ESR) is an industry standard process used to manufacture alloys for mission critical components associated with energy, aerospace, defense, and other applications. For example, ESR is specifically used in the produc…
View article: Microstructural Stability and Oxidation Resistance of 9-12 Chromium Steels at Elevated Temperatures
Microstructural Stability and Oxidation Resistance of 9-12 Chromium Steels at Elevated Temperatures Open
Various martensitic 9-12 Cr steels are utilized currently in fossil fuel powered energy plants for their good elevated temperature properties such as creep strength, steam side oxidation resistance, fire side corrosion resistance, and ther…
View article: The Performance of Ce Surface Treated Ferritic Stainless Steels for Solid Oxide Fuel Cell Interconnects
The Performance of Ce Surface Treated Ferritic Stainless Steels for Solid Oxide Fuel Cell Interconnects Open
This research deals with the effect of a Ce surface treatment on the behavior of Fe-Cr-Mn ferritic stainless steels which may have application in SOFC technology. This treatment consisted of applying a slurry of CeO2 and a halide activator…
View article: Influence of alloy content and a cerium surface treatment on the oxidation behavior of Fe-Cr ferritic stainless steels
Influence of alloy content and a cerium surface treatment on the oxidation behavior of Fe-Cr ferritic stainless steels Open
The cost of solid oxide fuel cells (SOFC) can be significantly reduced by using interconnects made from ferritic stainless steels. In fact, several alloys have been developed specifically for this application (Crofer 22APU and Hitachi ZMG3…
View article: Evaluation of a Surface Treatment on the Performance of Stainless Steels for SOFC Interconnect Applications
Evaluation of a Surface Treatment on the Performance of Stainless Steels for SOFC Interconnect Applications Open
Pack cementation-like Cerium based surface treatments have been found to be effective in enhancing the oxidation resistance of ferritic steels (Crofer 22APU) for solid oxide fuel cell (SOFC) applications. The application of either a CeN- o…
View article: Abstract - Cooperative Research and Development Agreement between Sotacarbo and National Energy Technology Laboratory
Abstract - Cooperative Research and Development Agreement between Sotacarbo and National Energy Technology Laboratory Open
The objective of this CRADA between NETL and Sotacarbo is to develop mutual collaboration in the areas of: CFD Modeling for optimization of coal/biomass gasification processes, CO2 Separation by Membranes, CO2-to-Liquids, & CO2 Sequestrati…
View article: High-Entropy Alloys: Formation and Properties
High-Entropy Alloys: Formation and Properties Open
This paper presents ongoing research at NETL aimed at gaining fundamental understanding of high-entropy alloys (HEAs) formation and their properties, and developing highperformance HEAs for high-temperature fossil energy applications. Firs…
View article: Molecular Modeling of the Physical Properties for Aqueous Amine Solution Containing a CO<sub>2</sub> Hydration Catalyst
Molecular Modeling of the Physical Properties for Aqueous Amine Solution Containing a CO<sub>2</sub> Hydration Catalyst Open
The effects of an amphiphilic CO2 hydration catalyst (C3P) on the physical properties of aqueous monoethanolamine (MEA) solutions were studied using molecular simulations and verified experimentally. Adding 2.7–27.7 g/L of C3P in 30 wt % M…
View article: Understanding the corrosion behavior of chromia-forming 316L stainless steel in dual oxidizing-reducing environment representative of SOFC interconnect
Understanding the corrosion behavior of chromia-forming 316L stainless steel in dual oxidizing-reducing environment representative of SOFC interconnect Open
A and B site doped LaCrO3-based electronically conducting Perovskite ceramic materials have been extensively used as interconnects in solid oxide fule cells (SOFC) operating at 800° to 1000°C as the Perovskites offer good electrical conduc…