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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Metals: Fatigue and Fracture
Presentation Title Study on Dominant factors on Fatigue Strength of Additive Manufactured Ti-6Al-4V Alloy
Author(s) Junichi Ozaki, Takehisa Yamada, Masahiro Takanashi, Ryoji Kakiuchi, Akihiro Sato
On-Site Speaker (Planned) Junichi Ozaki
Abstract Scope In this study, effects of porosities in additive manufactured Ti-6Al-4V alloy on fatigue strength are investigated from fatigue tests and observations of fracture surface. The fatigue lives of Non-HIP’d materials are shorter than those of HIP’d materials. All Non-HIP’d materials are fractured from porosities near the surface. All stress intensity factors for porosities to be fracture origin are larger than their threshold stress intensity factor. That means Non-HIP’d material has very short crack initiation life. Therefore, fatigue life of Non-HIP’d material is shorter than those of HIP’d. The estimated fatigue lives based on fatigue crack growth analysis agreed with experimental data for not only finite life region but also fatigue limit.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Printing of Metallic Glasses by Thermoplastic Forming
A-21: Creep and Thermomechanical Fatigue of Functionally Graded Inconel 718 Produced by Additive Manufacturing
A-22: Effect of Loading Direction and Heat Treatment on Fatigue Crack Growth Rate of CoCrW Alloy Additively Manufactured by Selective Laser Melting
Accounting for Thermal Process Induced Residual Stress in Additive Manufacturing Based Laser Cladding Repair of High-strength AerMetŪ100 Steel
Additive Manufacturing: Efficient Evaluation of Fatigue Properties Using Short-time Procedures Based on Cyclic Indentation and Physical Quantities
Anisotropic Fatigue Properties of IN718 Produced by Powder Bed Fusion
Effect of Hot Isostatic Pressing on Fatigue Properties of Additively Manufactured Ti-6Al-4V-ELI
Evaluation of Tensile and Low Cycle Fatigue Properties of 316 Stainless Using Binder Jetting Additive Manufacturing Technology
Evaluation of the Cyclic Stress-strain Behavior of Additively Manufactured AlSi10Mg
Evaluation of The Mechanical Properties of 15Cr-5Ni Stainless Steel Produced by Direct Metal Laser Sintering
Fatigue Behavior of DMLS IN718 and Ti-6Al-4V through Coupled Modeling and In Situ Experiments
Fatigue Characteristics of Additively Manufactured Aerospace Materials
Fatigue Crack Growth Anisotropy in Selective Laser Melting Produced Alloy 718 at Ambient and Elevated Temperatures
Fatigue of Solid State Additive Manufactured Inconel 625
Fatigue Prediction for AlSi10Mg Parts Produced by Laser Powder-bed Fusion
Fatigue Properties of Ti-6Al-4V Additively Manufactured by Selective Electron Beam Melting
Fatigue Propterties of AlSi10Mg Manufactured by SLM: the Role of Defects
Fracture Characterization of Additive Manufactured Ti-6Al-4V
Influence of Build-angle on Charpy Impact Fracture of Laser Powder Bed 3D-printed Stainless Steel and Aluminum Cast Alloy
Investigating Defect Formation Mechanisms in Powder-bed Metal Additive Manufacturing Using Synchrotron-based High-speed X-ray Radiography and Microtomography
Investigating Strain Localization in Additively Manufactured Ti-alloys Using Experimentally Validated Crystal Plasticity Simulations, Explicitly Accounting for Residual Stresses
Mechanical Property and Microstructural Comparison of Additive Manufactured Titanium (Ti64) Lattices
Microstructural Effects on Environmental Assisted Crack Growth Behaviors of Austenitic Stainless Steel by Laser Powder Bed Fusion
MIDAS: Material Informed Digital Design Demonstration for Additive Structures
Relating Defects at the Fracture Surface to Physical Properties of AM Materials
Strength, Fatigue, Fracture, and Microstructure of Additively Manufactured Austenitic Stainless Steel
Study on Dominant factors on Fatigue Strength of Additive Manufactured Ti-6Al-4V Alloy
Tensile and Fatigue Performance Ti-6Al-4V ELI and Non-ELI Material Manufactured by Selective Laser Melting
The 3rd Sandia Fracture Challenge: Blind Predictions of Fracture Performance in Laser Powder Bed 316L
The Influence of Build Orientation on the Thermal Fatigue Behavior of Additively Manufactured AlSi10Mg Coupons
Towards a Predictive Failure Model for Metallic Lattice Materials Manufactured with Laser Powder Bed Fusion

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