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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Frontiers in Solidification Science and Engineering
Presentation Title Inoculation in Lab Scale Low Alloyed Steel Castings
Author(s) Marvin Gennesson, Dominique Daloz, Julien Zollinger, Bernard Rouat, Hervť Combeau, JoŽlle Demurger, Delphine Poirier
On-Site Speaker (Planned) Marvin Gennesson
Abstract Scope Macrosegregation is a critical defect in industrial steel ingots. Reducing the grain size is a possible way to decrease macrosegregation by minimizing the relative motion between grains and the liquid phase. Currently, grain refinement in steels is achieved via electromagnetic stirring or inoculation. Inoculation aims to create a stable distribution of particles in the liquid phase to promote heterogeneous nucleation. Experiments using different inoculant powders (oxides, nitrides, carbides and ferrocerium) were carried out on two different steel grades in a 50g induction heated laboratory furnace. The inoculants were selected based on lattice mismatch, thermodynamic stability and relative density. The effects of each inoculant type on the microstructure are discussed in terms of these selection parameters. The addition of materials with a low lattice mismatch tended to refine the grain size, except in the case of ferrocerrium additions. Electron microprobe and SEM characterization improve understanding of the underlying mechanisms.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


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A Microstructural Approach toward Improving the Phase Stability of Planar Structure of the Peritectic Pb-Bi Alloys
A Novel Counter Gravity Casting Approach with High-energy Efficiency
A Phase-field Lattice Boltzmann Model for Bubble-dendrite Interaction during Solidification of Binary Alloys
A Quantitative Phase-field Crystal Model to Study Particle Coarsening in Binary Systems
Analysis of Formability of Glassy Alloys by Surface Heating under Convective Conditions
Analysis of Microstructure Rearrangement Processes during Velocity Variations of Directionally Solidified Eutectic Alloys
Anisotropic Interfaces in Coarse-grained Phase-field Crystal Models
Anomalous Dendrite Growth in Undercooled Al-Ni Melts
Application of Fast X-ray Radiography to the In Situ and Real-time Observation of Ni-based Alloy Directional Solidification
Dendrite Orientation Selection and Growth Dynamics of Al-based Alloys
Disrupting Solidification Microstructures via Magnet Fields Revealed by High Speed Synchrotron X-ray Tomography
Effect of Interphase Boundary Anisotropy on Three-phase Eutectic Microstructures
Extension of Jackson-Hunt analysis for Curved Interfaces
Graphite Morphology in Directionally Solidified Cast Iron
Impurities at Work: Integrated Imaging of Eutectic Modification
In Situ Observations and Phase-field Modeling of Three-dimensional Grain-boundary Instability and Solitary Cell Dynamics during Directional Solidification of Binary Alloys
In Situ X-ray Tomographic Examination and Modeling of Dendrite Patterns during Solidification in Co and Ni Alloys
Influence of Ta on Solidification Behaviour of Undercooled Ni-Ta Alloys
Inoculation in Lab Scale Low Alloyed Steel Castings
Investigating Nucleation Phenomena and Equilibrium/Non-equilibrium Phases in Rapid Solidification of Binary Al-Cu Alloys
Investigating the Impact of Inoculation on Al Based Alloys
Investigation of the Columnar-to-equiaxed Transition during Solidification in Microgravity
Kinetic Factor in the Nucleation Rate of Stoichiometric Compounds
Liquid Demixing in Undercooled Co-Cu Alloys
Mesoscopic Envelope Model for Equiaxed and Columnar Dendritic Growth Coupled with Flow
Modeling Dendritic Solidification in Microgravity and Terrestrial Conditions
Modeling of Eutectic Growth Kinetics in Multicomponent Alloys with Thermodynamic Couplings
Modeling of TEMHD Flow Velocities and its Influence on Dendritic Growth Velocities in Free Solidification of Pure Metals under Static Magentic Fields
Modeling of Twin Growth during Directional Solidification of Polycristalline Silicon
Multi-GPU Phase-field Simulation of Growth, Motion and Collision of Multiple Dendrites
Multiscale Dendritic Needle Network Model for Dendritic Solidification with Liquid Convection
Multiscale Modeling of Dendritic Grain Structures by Coupling DNN-CA-FE Methods
Nucleation Modes in a Hydrodynamic Phase-field Crystal Model of Solidification
Numerical Investigation Of Macrosegregation Mechanisms In DC Casting for Different Alloy Systems
Permeability Prediction of Dendrite Structure by Large-scale Phase-field Lattice Boltzmann Simulation
Phase-field Modelling of Intermetallic Solidification
Probing the Growth and Dissolution Pathways of Quasicrystals in Real-time
Simulation of Macrosegregation and Columnar to Equiaxed Transition in a Solidification Benchmark Problem
Solidification of a Mushy Zone in a Static Temperature Gradient: Phase-field Simulations
Solidification of Al Alloys Investigated by HAADF-STEM, EELS, and APT
Solidification of Aluminum Alloy A7050 Processed by Spray Forming: From Droplets to Dense Deposits
Solidification of Magma: From Crystal Growth to Bubble Formation
Solidification Study of Spray-formed Cast Irons
Solidification, Processing, and Characterization of High Entropy Alloys
Spacing Homogenization in Lamellar Eutectics with Anisotropic Interfaces
Study on the Formation and Control of TiN Inclusion in Mushy Zone for High Ti Microalloyed Steel
The Elimination of a Surface Defect in Traditional Open Sand Casting of Lead
Variational Formulation of a Quantitative Phase-field Model for Non-isothermal Solidification in Multi-component Alloys and its Applications

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