SEARCH · Engineering Papers
Results for “powders”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Effect of Process-Specific Defects on the Tensile and Constant-Amplitude Fatigue Behavior of as-Built Ti-6Al-4V Alloy Produced by Laser Powder Bed Fusion Process
Explore the source record for details and available documents.
Development of Laser Powder Directed Energy Deposited NASA HR-1 to Optimize Properties for Liquid Rocket Engine Applications
Explore the source record for details and available documents.
Computational Microstructure Modeling for Powder Bed Fusion Additive Manufacturing
Explore the source record for details and available documents.
Scaleup of Microwave Powder Bed Fusion for Lunar Infrastructure Construction
Explore the source record for details and available documents.
Design of Topologically Optimized Multi-functional SmallSat Structures Enabled by Advanced Laser Powder Bed Fusion Aluminums
No abstract provided
Microstructure, mechanical properties, and ionic conductivity of a solid-state electrolyte prepared using binderless laser powder bed fusion
No abstract provided
Assessment of Segmentation-Induced Deviations of Porosity Metrics in Powder Bed Fusion Additively Manufactured Components
Explore the source record for details and available documents.
Evaluation of Surface and Sub-Surface Cracking within Laser Powder Bed Fusion Additively Manufactured H230
Explore the source record for details and available documents.
Effect of defects on the constant-amplitude fatigue behavior of as-built Ti-6Al-4V alloy produced by laser powder bed fusion process: Assessing performance with metallographic analysis and micromechanical simulations
Explore the source record for details and available documents.
Pressure-induced amorphization in plagioclase feldspars: A time-resolved powder diffraction study during rapid compression
Explore the source record for details and available documents.
Process Defects Knowledge Modeling in Laser Powder Bed Fusion Additive Manufacturing: An Ontological Framework
Explore the source record for details and available documents.
Impacts of microsecond control in laser powder bed fusion processing
Explore the source record for details and available documents.
A numerical and experimental investigation of convective heat transfer during laser-powder bed fusion
Explore the source record for details and available documents.
Understanding Melt Pool Behavior of 316L Stainless Steel in Laser Powder Bed Fusion Additive Manufacturing
Explore the source record for details and available documents.
Toward a common laser powder bed fusion qualification test artifact
Explore the source record for details and available documents.
Method of making iron nitride powder with anisotropic shape
Techniques are disclosed for milling an iron-containing raw material in the presence of a nitrogen source to generate anisotropically shaped particles that include iron nitride and have an aspect ratio of at least 1.4. Techniques for nitridizing an anisotropic particle including iron, and annealing an anisotropic particle including iron nitride to form at least one a″-Fe16N2 phase domain within the anisotropic particle including iron nitride also are disclosed. In addition, techniques for aligning and joining anisotropic particles to form a bulk material including iron nitride, such as a bulk permanent magnet including at least one a″-Fe16N2 phase domain, are described. Milling apparatuses utilizing elongated bars, an electric field, and a magnetic field also are disclosed.
Passivation and alloying element retention in gas atomized powders
A method for gas atomization of a titanium alloy, nickel alloy, or other alumina (Al2O3)-forming alloy wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a passivation reaction film on the atomized particles wherein the reaction film retains a precursor halogen alloying element that is subsequently introduced into a microstructure formed by subsequent thermally processing of the atomized particles to improve oxidation resistance.