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Meeting MS&T22: Materials Science & Technology
Symposium Additive Manufacturing of Titanium-based Materials: Processing, Microstructure and Material Properties
Presentation Title Effect of Processing Parameters on Texture Evolution of Laser Powder Bed Fusion Processed Hydride-Dehydride Ti-6Al-4V Powder
Author(s) Mohammadreza Asherloo, Muktesh Paliwal, Anthony D Rollett, Amir Mostafaei
On-Site Speaker (Planned) Mohammadreza Asherloo
Abstract Scope Hydride-dehydride (HDH) powder with particle size distribution of 50-120 μm is additively processed by laser powder bed fusion (LPBF) using two sets of processing parameters of (1) constant laser power of 370 W and varying laser scan speed, and (2) constant laser scan speed of 1250 mm/s and varying laser power to study the effect on the texture evolution and microstructure of the LPBF Ti-6Al-4V parts. Electron backscattered diffraction (EBSD) analyses are conducted on cross-sections. At a constant power, we observed a transition of grain morphology from equiaxed to columnar and decrease in anisotropy of the part by increasing the scan speed. When the scan speed is constant, however, an increase of laser power does not show significant effect on anisotropy and grain morphology. Further analysis of EBSD data shows no change in the average alpha prime lath size by changing the processing parameters.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A-16: Characteristics of Ti-6Al-4V Component Fabricated by Laser Powder Bed Fusion Process
A-17: Linking Processing Conditions to Defect Structures, Microstructure, and Mechanical Behavior in Ti-6Al-4V Fabricated by Laser Powder Bed Fusion
Additive Manufacturing of Titanium – Boron Carbide In-situ Composites
Application of Extreme Value Analysis to Defect Size Distributions for Fatigue Life Prediction of Laser Powder Bed Fusion Processed Ti-6Al-4V
Controlling Aluminum Vaporization in EBM Ti-6Al-4V through Scan Strategy
Direct-Ink Writing of Hierarchically Porous Titanium for Enhanced Osseointegration
Effect of Interlayer Delays on the Microstructure and Properties of As-built Ti64 Parts in Direct Energy Deposition Process
Effect of Processing Parameters on Texture Evolution of Laser Powder Bed Fusion Processed Hydride-Dehydride Ti-6Al-4V Powder
Effect of Surface Finish on Fatigue Behavior of Laser Powder Bed Fusion Processed Hydride-Dehydride Ti-6Al-4V Powder
Effects of Process Parameters on Fatigue Behavior and Defect Characteristics in LPBF Ti-6Al-4V
Effects of Scan Strategies on Residual Stresses in Laser Powder Bed Fusion Ti-6Al-4V
Hybrid Strategies to Increasing the Throughput of Electron Beam Selective Melting of Ti-alloys
Influence of Substrate Condition and Initial Residual Stresses on Wire Fed Electron Beam Additive Deposition
Manipulating Fatigue Life in L-PBF with Contour Control
Modeling and Characterizing the Effects of Keyhole Porosity on Simulated Ti-6Al-4V Powder-Bed Fusion Microstructures
Modelling the Additive Manufacturing of a Titanium-based Hip Implant
Powder Bed Processing of Ti6Al4V: Comprehensive Process-Microstructure-Properties Analysis
Process Window Approach for Qualification of Laser Powder Bed Fusion
Role of Build Orientation and Layers on Microstructure and Multi-scale Mechanical Properties of Wire Arc Additive Manufactured Commercially Pure Titanium
Spatially Resolving Structure-Behavior Relations in Additive Manufactured Adaptive Materials
Stress State Dependent Fracture Behavior of Additively Manufactured Ti-6Al-4V Containing Internal Flaws
Transmission Electron Microscopy Analysis of Cellular Structure of Laser Processed Metastable Ti-Nb Alloy

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