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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Coupling Advanced Characterization and Modeling Tools for Understanding Fundamental Phase Transformation Mechanisms: An MPMD Symposium in Honor of Hamish Fraser
Presentation Title Qualification of Topology Optimized Titanium Parts Made by Additive Manufacturing through In-situ Process Monitoring
Author(s) Sudarsanam S. Babu, Sean Yoder, Ryan Dehoff, Peeyush Nandwana, Vincent Paquit, Michael Kirka
On-Site Speaker (Planned) Sudarsanam S. Babu
Abstract Scope The use of additive manufacturing processes to realize topology optimized complex components with targeted performance and minimum weight is considered as one of the emerging capability for designers. However, many designers follow the assumption that additive manufacturing follows traditional manufacturing convention, which is proven untrue. The goal of this research is to verify and validate an existing commercial topology optimization software (i.e. InspireŽ) and electron beam powder bed melting process (i.e. ArcamŽ) to produce optimized Ti-6Al-4V alloy components with consistent performance in the as fabricated condition. Emerging qualification tools based on in-situ near-infrared imaging and log file data analysis were used to rationalize the final performance of components. This research has shown the need comprehensive understanding of correlations between geometry, additive manufacturing processing conditions, defect generation, and microstructure for qualification of topology optimized structures. In addition, fundamental challenges of modeling cyclic phase transformations in Ti6Al4V alloys will also be discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advanced Characterization and Modeling Tools in the Context of Corrosion
Advances in TiAl- based Alloys
Applications of Ordering Tie Lines to Represent ALCHEMI Data in Intermetallic Compounds and Complex Oxides
Computational Investigation of Omega Phase Evolution in Ti-Mo and Ti-V Systems
Coupled Characterization and Modeling of the Crystallography of Phase Transformations
Deformation by Dislocations, Twinning, and Phase Transformations in Compositionally Concentrated FCC Solid Solutions
Effects of Ternary Element Additions on the Precipitation of α and ω Phases in Ti-Mo Alloys
Evolution of Microstructure and Transformation Texture in Titanium Alloys
Fun-research and Some Exciting Results (FRASER)
How I Learned to Stop Worrying and Love the Metallurgical Play Pen
Lattice Site Correspondence in Active Eutectoid Decomposition in Ti-Cu and Zr-Cu Alloys
New Techniques for Interrogation of Structure in Additively Manufactured Materials
Phase and Intrinsic Stress Stability in Thin Multilayered Films
Phase Separation and Atomic Ordering in Mixed III – V Epitaxial Layers
Phase Stability of Nanostructured Steel Studied by Atom Probe Tomography and the Defactant Concept
Phase Transformations, Microstructure Evolution and Mechanical Properties of Nickel-base Superalloys Studied by Analytical Scanning and Transmission Electron Microscopy
Probabilistic Methodology for Analyzing and Reconstructing Parent Microstructures from EBSD Maps of Transformation Products
Progress in the Application of ICME in the Titanium Industry
Progress with 3-dimensional Materials Science Tools for Aerospace Alloy Engineering
Qualification of Topology Optimized Titanium Parts Made by Additive Manufacturing through In-situ Process Monitoring
Quantitative Characterization of Microstructure in Near-alpha and Alpha+Beta Titanium Alloys
Steel Ab Initio: Atomic Scale Characterization and Modeling in the Development of High Strength Steels
The Need for Advanced Techniques to Couple Multiscale Physics Based Structural Models
The β to α Transformation in Titanium Alloys
Thermoelastic Equilibrium and Superfunctionality of Pre-transitional Materials: Superelasticity, Supermagnetostriction, Invar and Elinvar Effects

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