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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Metals: Fatigue and Fracture
Presentation Title Accounting for Thermal Process Induced Residual Stress in Additive Manufacturing Based Laser Cladding Repair of High-strength AerMetŪ100 Steel
Author(s) Kevin Walker, Stephen Sun, Milan Brandt, Adrian DeWald, Michael Hill
On-Site Speaker (Planned) Kevin Walker
Abstract Scope Additive manufacturing based laser cladding has emerged as an effective and efficient technology to restore strength and fatigue life to damaged high-strength metallic alloy aircraft components and structures. Recent research into laser cladding repair of ultra-high strength AerMetŪ100 steel showed that the fatigue crack growth properties in the repaired case were improved compared to the as-damaged case. Assessment of this case required knowledge of the through the depth residual stress profile which was measured by neutron diffraction. The current work included characterising the residual stress profile in that near-surface region by X-Ray diffraction combined with sequential electro-polishing. The results matched up well with the neutron data, and are considered reliable. Further assessment was also conducted using compliance based slitting methods and those results are also presented. The updated residual stress data were then combined with an advanced and updated fatigue crack growth model which was correlated to Quantitative Fractography results.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Printing of Metallic Glasses by Thermoplastic Forming
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
Creep and Thermomechanical Fatigue of Functionally Graded Inconel 718 Produced by Additive Manufacturing
Effect of Hot Isostatic Pressing on Fatigue Properties of Additively Manufactured Ti-6Al-4V-ELI
Effect of Loading Direction and Heat Treatment on Fatigue Crack Growth Rate of CoCrW Alloy Additively Manufactured by Selective Laser Melting
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
High Temperature Properties of IN-718: Conventional versus Additively Manufactured
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 Additively Manufactured Titanium (Ti64) Lattices and Bulk Material
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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