3D Characterization of Porosity in AM 316L SS and its Effect on Mechanical Behavior
Abstract not provided.
Publications
Advanced Model Predictions of Mechanical Properties and Process Parameter Effects in High Throughput L-PBF Tension Specimens
Abstract not provided.
3D Characterization of Porosity in AM 316L SS and its Effect on Mechanical Behavior
Abstract not provided.
Nonlinear Ultrasonic Techniques for the Quantification of Dislocations and Residual Stress Fields in Additive Materials
Abstract not provided.
Machine Metrology for a Metal Laser Powder Bed Fusion Machine
Abstract not provided.
The Impact of Critical Defects on Material Performance and Science-Based Qualification for Metal Laser Powder Bed Fusion
Abstract not provided.
Effect of thermal annealing on microstructure evolution and mechanical behavior of an additive manufactured AlSi10Mg part
Journal of Materials Research
The powder-bed laser additive manufacturing (AM) process is widely used in the fabrication of three-dimensional metallic parts with intricate structures, where kinetically controlled diffusion and microstructure ripening can be hindered by fast melting and rapid solidification. Therefore, the microstructure and physical properties of parts made by this process will be significantly different from their counterparts produced by conventional methods. This work investigates the microstructure evolution for an AM fabricated AlSi10Mg part from its nonequilibrium state toward equilibrium state. Special attention is placed on silicon dissolution, precipitate formation, collapsing of a divorced eutectic cellular structure, and microstructure ripening in the thermal annealing process. These events alter the size, morphology, length scale, and distribution of the beta silicon phase in the primary aluminum, and changes associated with elastic properties and microhardness are reported. The relationship between residual stress and silicon dissolution due to changes in lattice spacing is also investigated and discussed.
Aggregate Presence and Impact of 3D Defect Populations In AM Stainless Steel
Abstract not provided.
316L Stainless Steel Powder Reuse in Additive Manufacturing
Abstract not provided.
Changing the Engineering Design & Qualification Paradigm in Component Design & Manufacturing (Born Qualified)
Abstract not provided.
Investigating Melt Pool Dynamics in Laser-Bed Powder Fusion Using a Two-Color Pyrometer
Abstract not provided.
Investigating Laser Beam Operations in Laser-Powder Bed Fusion
Abstract not provided.
The Challenges and Consequences of Uncertainties in Metal Laser Powder Bed Fusion
Abstract not provided.
Modeling the Life Cycle of High Throughput Tensile Specimens Produced by Laser Powder Bed Fusion: From Fabrication to Performance
Abstract not provided.
Hybrid Integration of III-V Solar Microcells for High-Efficiency Concentrated Photovoltaic Modules
IEEE Journal of Selected Topics in Quantum Electronics
The design, fabrication, and performance of InGaAs and InGaP/GaAs microcells are presented. These cells are integrated with a Si wafer providing a path for insertion in hybrid concentrated photovoltaic modules. Comparisons are made between bonded cells and cells fabricated on their native wafer. The bonded cells showed no evidence of degradation in spite of the integration process that involved significant processing including the removal of the III-V substrate.
Defect Signatures for Metal Laser Powder Bed Fusion
Abstract not provided.
Born Qualified EAB Telecon
Abstract not provided.
Surface Properties of Recycled 316L Powder
Abstract not provided.
Mechanical Properties and Trends in Additively Manufactured Aluminum
Abstract not provided.
Sandia AM Research
Abstract not provided.
High-throughput testing reveals rare catastrophic defects
Abstract not provided.
Rapidly Detecting Rare Incipient Defect States at the
Abstract not provided.
High-throughput testing reveals
Abstract not provided.
Understanding Pitting and Stress Corrosion Cracking of Austenitic Stainless Steels
Abstract not provided.
High-Throughput Testing Reveals Rare Catastrophic Defects
Abstract not provided.
Results 101–125 of 212