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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
Presentation Title Numerical Study of Plastic Deformation Mechanisms in a New Generation Fe-TiB2 Steel Composite Using a FFT-based Model
Author(s) Julien Genée, Stephane Berbenni, Nathalie Gey, Julien Guyon, Frederic Bonnet
On-Site Speaker (Planned) Julien Genée
Abstract Scope This study aims at getting a better understanding of plastic mechanisms in a new generation steel composite composed of a ferritic matrix and TiB2 ceramic reinforcements. Especially, the objective is to evaluate the very heterogeneous distribution of mechanical fields between the ductile matrix and the hard particles. Indeed, localization of deformation in the Fe-TiB2 composite could lead to premature damage initiation (debonding at matrix/particle interface or particle fracture). To this end, a full-field crystal plasticity simulation approach, based on the Fast Fourier Transform method (FFT) and taking into account the evolution of Geometrically Necessary Dislocations (GND) densities distribution, has been developed. Synthetic as well as realistic microstructures – based on 2D and 3D advanced characterizations in a FEG-FIB SEM system equipped with an EBSD sytem – serve as input for simulations in order to assess the relation between internal length scales and local GND distribution, stress and plastic strain fields.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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A Novel Experimental Methodology and Theoretical Framework for Enabling Macroscopic-like Deformation at the Microscale
A Novel Fracture Observation in SiC-based Ceramics Through In-situ Double Torsion Testing
A Novel X-ray Diffraction Simulation Framework for Rapid Thermo-mechanical Processes
Ab-initio Predictions of Plastic Anisotropy in BCC Metals
Acoustic Emission Measurements During In-situ Scanning Electron Microscopy Experiments to Quantifying Damage Accumulation and Crack Initiation in Microcrystals
Assessing Crack Propagation Along Brittle/Ductile Interfaces
Core Structure and Mobility of Dislocations in Alpha-Ti
Deformation Behavior of Additively Manufactured Cu-Fe Composites at Different Strain Rates
Development of TiAl Alloys for High Temperature Applications
Dislocation-grain Boundary Interaction Investigations Using In-situ DIC and EBSD
Effect of Loading Rate on Fracture Behavior of Magnesium Alloys
Examination of Local Microscale-microsecond Temperature Rise in HMX-HTPB Energetic Material under Impact Loading
Experimental and Numerical Investigation into Mechanical Degradation of Polymers and Polymer Composites
Fabrication of Microscale Specimens via Additive Manufacturing for In-situ Mechanical Testing
Fracture Across Length Scales in Tungsten: A Combined Experimental and Predictive Approach
High Throughput Creep Data Acquisition by Cantilever Bending Coupled to Digital Image Correlation
Impact of the Architecture / Texture on the Mechanical Behavior of Ni-microwires: How to Drive the Strength and Ductility
In-situ Dynamic Stress Field Detection using 2D Mechanical Raman Spectroscopy
In-situ Mechano-electrochemical Coupling of Structural Supercapacitor Electrodes
In-situ TEM Investigation of the Electroplasticity Phenomenon in Metals
In-situ TEM Investigation on Pyramidal Dislocations in Magnesium
Investigating Bulk Mechanical Properties on a Micro-scale: Micro-tensile Testing of Ultrafine Grained Ni-SiC Composite to Determine its Fracture Mechanism and Strain Rate Sensitivity
Micropillar Compression Testing with In-situ Raman Spectroscopy to Study Plastic Deformation in Vitreous Silica
Microstructure-driven Mechanical Properties of Explosives Quantified with In-situ Tomography
Microstructure and Micromechanical Field Evolution During Dynamic Recrystallization: A Crystal Plasticity-phase Field Simulation Study
Microtensile Testing of (fcc) Copper and (hcp) Titanium at Elevated Temperatures
Mixed-mode Fracture Behavior of Magnesium Alloys
Multiscale Modeling to Determine Bulk Material Property from Miniature Specimen Testing
Numerical Study of Plastic Deformation Mechanisms in a New Generation Fe-TiB2 Steel Composite Using a FFT-based Model
On Crystallographic and Material Hardening Aspects in Ductile Damage of Hexagonal Close Packed Metals
Quantifying Deformation Mechanics of High Temperature Alloys using In-situ and Digital Imaging Correlation (DIC) Testing Techniques
Shape Fidelity and Mechanical Response in Micro Pattern Replication by Molding
Synchronized Indentation and Raman Spectroscopy for Crystal Engineering
Synthesis and Mechanical Behavior of Freestanding NiTi Films with Varying Grain Sizes
Temperature Effects in the Microscale Deformability of Yttria Stabilized Zirconia Prepared by Spark Plasma Sintering
Understanding Pseudomorphic bcc Mg Under Extreme Conditions of Pressure, Temperature and High Strain Rates
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