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Meeting MS&T21: Materials Science & Technology
Symposium Additive Manufacturing: Processing, Microstructure and Material Properties of Titanium-based Materials
Presentation Title Effect of Powder Feedstock Size on the Characteristics of Ti6Al4V Lightweight Features from Laser Powder Bed Fusion Additive Manufacturing: An Experimental Study
Author(s) Sayed Ehsan Saghaian, Jonah Hermes, Li Yang
On-Site Speaker (Planned) Li Yang
Abstract Scope Due to the small characteristic dimensions, lightweight features such as thin walls and thin struts exhibit higher sensitivity to the powder feedstock characteristics. In this work, an experimental study was carried out to evaluate the effect of powder particle size on various characteristics of the lightweight features made of Ti6Al4V using laser powder bed fusion (L-PBF) process. Three different powder feedstock with different particle size distribution characteristics were used, and both thin wall and thin strut features of various characteristic dimensions were fabricated under different beam energy and scan speed combinations. Geometrical characteristics (e.g. dimension, surface roughness) and material characteristics (e.g. microstructure, porosity) of the fabricated features were analyzed systematically. The results aim to provide a preliminary knowledge base for the quality characteristics of Ti6Al4V lightweight features made by L-PBF and their dependency on the characteristics of the powder bed, which contributes to the design for L-PBF lightweight structure theory.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Machine Learning Model to Predict Tensile Properties of Ti6Al4V Parts Prepared by Selective Laser Melting with Hot Isostatic Pressing
Additive Manufacturing of Shape Memory NiTi Alloys with High Building Rates
Additive Manufacturing of Titanium – Boron Carbide In Situ Composites
An Automated Tool for Porosity Characterization and Classification in LPBF
An Infill Strategy for Eliminating Local Hot Spots in Ti64 Laser Powder Bed Fusion
Comparison of Mechanical Properties for Ti-Ta Vertically and Horizontally Graded Interfaces in Laser Powder Bed Fusion
Effect of High Oxygen Content on the Tensile and Fatigue Performance of Selectively Laser Melted (SLM) Ti-6Al-4V in the Hot Isostatic Pressed (HIP) Condition
Effect of Pores Present in Very Low Volume Fraction on Tensile Properties of Additively Manufactured Titanium Alloys
Effect of Powder Feedstock Size on the Characteristics of Ti6Al4V Lightweight Features from Laser Powder Bed Fusion Additive Manufacturing: An Experimental Study
Effects of Process Parameters on Fatigue Behavior and Defect Characteristics in LPBF Ti-6Al-4V
Effects of Process Parameters on Fracture and Fatigue of High Deposition Rate Laser Hot Wire Processed CP-Ti Grade 2
Examining the Role of Parent Grain Orientations on the Texture and Physical Properties of Additively Manufactured Ti 6-4 Alloys
Fatigue Fracture Surface Defect Quantification for LPBF Additively Manufactured Ti-6Al-4V
Influence of Foreign-Object Damage on the High Cycle Fatigue Properties of Direct Energy Deposition Repaired Ti-6Al-4V
Influence of Thermal Treatments on the Microstructure and Mechanical Properties of Ti-6Al-4V Built by Electron Beam Melting (EBM)
Laser Additive Manufacturing Under Reactive Atmosphere: An Approach to Fabricate Ultra-high Strength Commercially Pure Titanium Without Sacrificing Ductility
Mechanical Properties as a Function of Material State for Additively Manufactured Ti-5Al-5V-5Mo-3Cr
Mechanical Strength and Fatigue Performance of Laser Powder Bed Fusion Processed Hydride-dehydride Ti-6Al-4V Powders
Melt Pool Characterization and Numerical Simulation in Selective Laser Melting of NiTi Powder
Microstructural Instability in Additively Manufactured Gamma-TiAl Alloy
Modeling of True Stress-Strain in the Plastic Regime of Additively Manufactured Ti-6Al-4V
Multi-scale Strain, Microstructure, and Solidification Behavior of Ti-5553 Architected Lattice Melt Pools
On the Use of Defects as Microstructural Informants in EBM Ti-6Al-4V
On the Use of Energy Dispersive Spectroscopy to Inform on Local Property Variations and Defect Formation across AM Processes
P3-9: Characterization of Stresses as a Function of AM Processing Parameters in Commercially Pure Ti
Performance of Titanium Alloy Lattice Structures in Quasi-static and High Strain Rate Environments
Processing to Microstructure to Properties in Titanium
Reactiviting Transformation Induced Plasticity (TRIP) in an Additively Manufactured β-Ti Alloy
Surface Analysis and Microstructure Characterization of Electron Beam Melted (EBM) Ti-6Al-4V
Time-resolved Characterization of Evolving Phase and Microstructure of Ti-6Al-4V during Laser Processing with Synchrotron X-ray Diffraction
Use of Small Geometry Specimens to Determine the Fracture and Fatigue Crack Growth Properties of Additively Manufactured Ti-6Al-4V via DED Technique for Repair
Vibration Bending Fatigue Analysis of Additively Repaired Ti-6Al-4V Airfoil Blades

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