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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing Fatigue and Fracture V: Processing-Structure-Property Investigations and Application to Qualification
Presentation Title Strain Accumulation during Fatigue and Fracture of Additively Manufactured Ti6Al4V: Experiments and Simulations
Author(s) Raymundo Muro-Barrios, Raeann M. VanSickle, Huck Beng Chew, John Lambros
On-Site Speaker (Planned) John Lambros
Abstract Scope Additively manufactured (AM) Ti6Al4V alloys often exhibit void imperfections from their manufacturing process, adding to the background porosity typically responsible for failure in conventional metals, resulting in a two-scale porosity. Driven by the unique microstructure of the AM material these dual-scale voids begin to grow under loading in the vicinity of a crack, leading to eventual crack advance. Here, the accumulation of strains in the AM microstructure is experimentally studied using a combination of high-resolution digital image correlation, optical microscopy, and electron backscatter diffraction (EBSD). On the simulation side, a cracked elasto-plastic material seeded with void distributions representing the two void size scales observed experimentally is modelled using Gurson-type elements. A comparison with experiments is then made for the predicted vs. measured crack paths and strain fields. The numerical simulations, being 3D, also allow us to explore the interaction of the dual-scale voids in the sample interior.
Proceedings Inclusion? Planned:


3-D Convolutional Neural Networks for Pore Analysis in Metal Additive Manufacturing Builds
A Small Punch Test Study of Additively Manufactured AlSi10Mg
Automotive-specific Requirements for Additive Manufacturing of Metal Materials
Bayesian Inference of Elastic Constants and Texture Coefficients in Additively Manufactured Alloys Using Resonant Ultrasound Spectroscopy
Carbon-containing CrMnFeCoNi High-Entropy Alloy Matrix Nanocomposite Additively Manufactured by Selective Laser Melting: Effect of Carbon Contents on the Microstructure, Tensile Property and Deformation Behavior
Characterization of 3D-printed Metals with Ultrasonic Technique
Cold Spray of Al and 6061 Al Alloy Powders: Effects of Oxide Thickness
Critical Fracture Toughness of Al 6061 Cold Spray Deposits
Damage Tolerant Approach in Additively Manufactured Metallic Materials
Defect-based Fatigue Model for AlSi10Mg Produced by Laser Powder Bed Fusion Process
Defect 3D Tomography and Fatigue Life Modeling of Electron Beam Fusion Additively Manufactured Ti-6Al-4V Alloy
Design of Fatigue Resistant Additive Manufactured Austenitic Stainless Steels
Effect of Defects on Stress State Dependent Fracture of Additively Manufactured Metals
Effect of Laser Power, Laser Spot Size and Hatch Spacing on Mechanical and Microstructural Properties of 316L Stainless Steel Processed via Selective Laser Melting
Effect of Laser Remelting on Microstructure, Residual Stress, and Mechanical Property of Selective Laser Melting Processed Ti-6Al-4V Alloy
Effect of Oxide and Hydroxide on Cold Spray of Titanium Particles
Effect of Thickness on Ultrasonic Fatigue Behavior of 316L Stainless Steel Made by Powder Bed Fusion Additive Manufacturing
Fatigue Crack Growth and Fracture Toughness Behavior of Laser Powder Bed Fusion Titanium Alloys
Fatigue Crack Growth Rate of Electron Beam Melted (EBM) Titanium Alloy (Ti-6Al-4V): Effect of Crystallographic Texture and Internal Porosity
High Cycle Fatigue and High Temperature Creep Behaviors of Selective Laser Melted CrMnFeCoNi High-entropy Alloy Strengthened by In-situ Formed Oxide
High Cycle Fatigue Behaviour of Selective Laser Melted Ti-6Al-4V
High Cycle Fatigue in Metastable High Entropy Alloy by Laser Powder Bed Additive Manufacturing
High Temperature Fatigue Properties of Selective Laser Melted Inconel 718
Implementing Processing Strategies and Unique Hot Isostatic Pressing Treatments to Control Microstructure, Defect Content, and Mechanical Properties of Electron Beam Melted Ti-6Al-4V
Influence of Stress Induced Re-crystallization during Ti-6Al-4V E-PBF Post Processing on Fatigue Behavior
Influence of Truly As-built Surface Condition and Build Direction of SLM Fabricated Ti–6Al–4V Parts on the Mechanical Properties
Interplay between Geometry, Defects, and Porosity on the Mechanical Behavior of AM Components
Laser Powder Bed Fusion of Hydride-dehydride Ti-6Al-4V Powders: Effect of Hot Isostatic Pressing on Microstructure and Mechanical Properties
Laser Powder Bed Fusion of TiTa Alloys: Process Optimisation and Fatigue Properties
Managing Heat Buildup and Standardizing Melt Pool Dimensions in Laser Powder Bed Fusion through a “Powder Moat” Scan Strategy
Mechanical Behavior of Induced Lack of Fusion Flaws in AlSi10Mg
Microstructural Heterogeneity and Mechanical Anisotropy of 18Ni-330 Maraging Steel Fabricated by Selective Laser Melting: The Effect of Build Orientation and Height
Microstructure-based Model Validation and Predictions of Single-build-plate Fatigue Strength Sensitivity for Additively Manufactured Ti-6Al-4V
Notch Sensitivity of AlSi10Mg Aluminum Alloy Produced by Laser Powder Bed Fusion Process
Plastic localization in Additively Manufactured 316L Austenitic Stainless Steel.
Predicting Life Expectancy of AM Parts Using a Combined Framework of Experimental and Computational Data Science
Progressive Amplitude Fatigue Performance of Additively Manufactured Stainless Steel Superalloy
Quantifying Layer Uniformity in Ti6Al4V Hybrid Additively Manufactured Samples Using Ultrasound
Quantifying Surface Roughness in Additive Manufactured Ti-6AI-4V Using In-situ X-ray Imaging
State-of-the-Art in Predicting Fatigue Life for Applications in Metal-based Additive Manufacturing
Strain Accumulation during Fatigue and Fracture of Additively Manufactured Ti6Al4V: Experiments and Simulations
Structure-property Relationships to Explain the Elasto-plastic Anisotropy of Additively Manufactured Metal Alloys
Synchrotron Imaging of the Influence of TiB2 in Suppressing Hot Cracking during Laser Powder Bed Fusion of Al-2139
Synergistic Effects of Defects and Microstructure on Fatigue Behavior of LB-PBF Metallic Materials
Tensile and Fatigue Behavior of Cold Sprayed Material Using Heat Treated Feedstock Powders
The Inhomogeneous Microstructure and Properties of Ti-6Al-4V Additively Manufactured with Electron Beam Freeform Fabrication
The Role of Textures in Strengthening and Toughening of Directed Energy Deposited Steels
Towards Validation for Computed Tomography Processes for Additive Manufacturing
Ultrasonic Nondestructive Characterization of Hybrid Additively Manufactured 420 Stainless Steel
Using Laser Powder Bed Fusion to Create Functionally-Graded Inconel 718 Superalloy Microstructures: Process Development and Local Mechanical Properties Characterisation
Using Post Build Porosity Analysis to Inform Future Build Strategies
Variation and Impact of Surface Roughness on Fatigue in Laser Powder Bed Fusion
Verification of Compliance-based Crack Initiation Detection Method for Additively Manufactured Materials

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