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Meeting Materials Science & Technology 2017
Symposium Non Beam-based Additive Manufacturing Approaches for Metallic Parts
Presentation Title Grain Growth And Densification Behavior Of 316L Stainless Steel Metallic Components Produced via Binder Jet-powder Printing (3-D) System Using Water Atomized Powders
Author(s) Hsiang-Ling Juan, Yu Zhou, Christopher T. Schade, Calixto Isaac Garcia
On-Site Speaker (Planned) Hsiang-Ling Juan
Abstract Scope The goal of this paper was to study the effect of initial water atomized powder size and sintering processing conditions on the grain growth and densification behavior of metallic components of 316L stainless steel. Of particular interest was to establish the relationship between grain growth and densification. The results showed that prior to grain growth the pores are attached to the austenite grain boundaries and/or to annealing twins, suggesting two mechanisms; 1) the pores at the grain boundaries act as pinning force to prevent grain coarsening, and 2) the mobility of high angle grain boundaries act as compressing force to reduce the pore size. After grain growth the pores are left behind the grain boundaries. At this condition, the sintering of the metallic component becomes nearly impossible to achieve. The grain growth and sintering behavior were systematically analyzed using advanced electron optic techniques. The results will be presented and discussed.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Inkjet Powder Printing of Implantable Biomaterials and Biomedical Device Prototypes
A-16: Binder Jet Printing of Partial Denture Metal Framework from Metal Powder
A-17: Detailed Microstructural and Electrochemical investigation of 3D Printed and Arc Melted 316L Stainless Steel
A-18: High Velocity Hybrid Thermal Spray Systems for 3-D Coatings
A-19: Large-scale Additive Manufacturing of Steel Structures
Additive Manufacturing Evaporative Casting
Additive Manufacturing of High-performance Copper Heat Exchangers via 3D Screen Printing
Additive Manufacturing Technology Based on Stationary Shoulder Friction Stir Welding for Aluminum Alloy
Assessment of Environmental Contamination in Ti-6Al-4V Parts Fabricated from the Laser Hot Wire Process
Binder Jetting 3D Printing: Improving Printer Capabilities and Expanding Available Materials
Densification and Sintering of Metallic Struts within Micro-trusses 3D-printed from Powder-based Liquid Inks
Direct Molten Metal Write of Structurally Significant Materials
Extrusion-based 3D-printing and Sintering of Ni-Mn-Ga and NiTi-Nb Shape Memory Alloys
Grain Growth And Densification Behavior Of 316L Stainless Steel Metallic Components Produced via Binder Jet-powder Printing (3-D) System Using Water Atomized Powders
Integrated Process Line for Fused Filament Fabrication of Metallic Parts Using Metal Powder Loaded Filaments
Large Scale Layered Object Manufacturing – Boundary Conditions for the Joining Process Diffusion Bonding
Mechanisms for Deformation and Film Formation from High Speed Aerosol Deposition of Ag
Metal Additive Manufacturing through Friction Stir-facilitated Deposition
Neutron Diffraction Mapping of Residual Stresses in Large-scale Wire-fed Additively Manufactured Components
Roadmap for Metal Hybrids Net-Shaped via Binder Jet Additive Manufacturing
Slumping during the Sintering of Cantilevered Beams: Experiments and Theory
Ultrasonic Additive Manufacturing State-of-the-Art

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