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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing of Large-scale Metallic Components
Presentation Title J-21: Numerical Modeling of Non-equilibrium Partitioning in Copper-iron Binary Systems Manufactured by Direct Metal Deposition (DMD)
Author(s) Daniel Yin, Amit Misra, Jyoti Mazumder
On-Site Speaker (Planned) Daniel Yin
Abstract Scope The DMD manufacturing process produces high cooling rates within a small melt pool and can lead to high amounts of solute trapping. Solute alloy atoms that would normally segregate out into equilibrium phases cannot do so because of limited diffusion time and may result in super-saturated solid solutions. In this work, we utilize a numerical model to calculate the degree of solute trapping, defined as non-equilibrium partitioning. This model is first tested for a theoretical case with overall composition fixed to 50Cu-50Fe at.% to see the influence of increasing solidification rates. We then simulate DMD for an equimolar Cu-Fe powder printed on mild steel substrate and calculate the non-equilibrium phase compositions. For a single deposited track, cooling rates are high enough to yield significant solute trapping throughout the deposited track. The degree of solute trapping is highest near the free surface with a gradient that correlates with the cooling rate.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Computational Materials Science & Engineering, Modeling and Simulation


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A High Fidelity Melt Pool Dynamics Model with Experimental Validation Results under Various Laser Power Densities and Scanning Speeds
An Investigation on the Capabilities of Laser Directed Energy Deposition Additive Manufacturing Process in Building Challenging Materials and Geometries
Assessment of Hybrid Additive Manufacturing Concept for Production of Parts for Space Applications
Characterization of a Large-scale 316L Body Produced with High Deposition Rate Wire Arc Directed Energy Deposition
Constitutive Modeling of Additively Manufactured Multi-phase Steel Alloys by the Crystal Plasticity Finite Element Method
Correlating Microstructure with Thermal Models in Wire-arc Additive Manufacturing of Mild Steel
Design for Metal Large-scale Additive Manufacturing: Mitigation of Bending Deformation on Curved Sheet
Experimental and Numerical Assessment of H13 Tool Steel Produced by Directed Energy Deposition
Formation of Multiple Necks in Wire-based Electron Beam Additively Manufactured Ti-6Al-4V Pulled in Uniaxial Tension
Heat Treatment Effects on Mechanical Properties of Wire Arc Additive Manufactured and Electron Beam Additive Manufactured Ti-6Al-4V
J-20: Modelling and Analysis of Single-pass Laser Cladded High Speed Steel Considering Phase Transformation Effects
J-21: Numerical Modeling of Non-equilibrium Partitioning in Copper-iron Binary Systems Manufactured by Direct Metal Deposition (DMD)
J-22: Repair of High Hard Steel Using Similar Filler Material by a Solid-state Additive Manufacturing Approach
Large Metal Structures with Wire Arc Additive Manufacturing- Case Studies with Invar Tooling and AM718 Structural Parts
Mechanical Response of Wire-arc Additively Manufactured LA100TM with and without Post-print Heat-treatments
Microstructure Control in Wire-arc Additively Manufactured Maraging Steels
Modified Inherent Strain Method for Wire Arc Additive Manufacturing
NOW ON-DEMAND ONLY - A Comparative Study of Deformation Mechanisms in 316L Stainless Steel Fabricated by Additive and Additive + Subtractive (Hybrid) Manufacturing
NOW ON-DEMAND ONLY - Process Optimization in Metal Additive Manufacturing Using Image Processing and Statistical Analysis
NOW ON-DEMAND ONLY - The Effect of Preheating Substrate on the Microstructure and Mechanical Properties in Laser Deposited Martensitic Steel
Prediction of Large Domain Thermal History and Molten Pool Shape Using the Surrogate Modeling and Machine Learning
Prior-β Grain Structure Control of Ti-6Al-4V WAAM in the As-deposited Condition
Process-structure-property Study on CP-Ti (Grade 2) Produced via High Deposition AM Laser-hot Wire
Rapid Low-temperature Bend-forming of Hierarchical Reticulated Structures
Residual Stress, Microstructure and Characterization of Self-mated Repair of Inconel 718 Using Cold Spray Process
Reverse Engineering of Aerospace Components Utilizing Additive Manufacturing Technology
The Effects of CoAl2O4 on the Microstructural Evolution of Inconel 718 Processed by Direct Energy Deposition
Wire Arc Additive Manufacturing of Nano-treated High Strength Aluminum Alloys
Wire Arc Additive Manufacturing of Stainless Steels: Kinetics Modeling of Phase Transformations Using Differential Scanning Calorimetry
Wire Arc Processing of Stainless Steels; Microstructure and Properties

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