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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Advanced Characterization Techniques for Quantifying and Modeling Deformation
Presentation Title K-19: Understanding the Deformation Mechanisms and Phase Transformations in High Alloy Metastable Austenitic Steels
Author(s) Stefan Martin, Christiane Ullrich, Mykhaylo Motylenko, David Rafaja
On-Site Speaker (Planned) Stefan Martin
Abstract Scope High alloy austenitic CrMnNi steels undergo different deformation mechanisms as a function of chemical composition, strain rate, stress state and deformation temperature. These kind of iron-based alloys are advanced high strength steels, as new interfaces in the austenite grains are created by deformation twinning and martensitic transformations (ε- and α’-martensite) during plastic deformation, bringing about additional strengthening. Due to the chemically tunable low stacking fault energy of the fcc austenite, dislocation glide behavior is remarkably influenced, which provokes increased stacking fault formation. Stacking fault clusters are the nucleation site for the martensitic transformation and the deformation twinning. Using a combination of electron microscopy, electron backscattered diffraction and X-ray diffraction, the peculiarities of the deformation mechanisms and phase transformations and their interconnection is revealed. Through these insights, microstructure parameters can be identified entailing adequate modelling approaches of the mechanical behavior.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


3D In-situ Characterization of the Deformation of Open-cell Aluminum Foam Using High Energy X-ray Diffraction Microscopy and Micro-Computed Tomography
3D Maps of Geometrically Necessary Dislocation Densities in FCC Polycrystalline IN718
3D Statistics of Slip Localization: Analysis of Dual HR-DIC / 3D-EBSD Experiments
4D Integrated X-ray Imaging and Modeling of Nanoscale Dynamics
A Continuum Mechanics Description of EBSD Misorientation Mapping
A Critical Assessment of the Dual-TRIP Effect: Beneficial or Not?
A Quantitative Study of Slip Band-Grain Boundary Interactions in Mg Alloys
Advanced Analysis of Acoustic Emission Response of the Main Deformation Mechanisms in Mg
Antitwinning in Nanoscale Tungsten
Assessing the Variation in Localized Deformation During Hydrogen Environment-assisted Cracking in Peak-aged Monel K-500
Avalanche Statistics and the Intermittent-to-smooth-transition in Microplasticity
Characterization of 3-D Slip Fields in Deforming Polycrystals
Characterization of Transient State Deformation in Chips Produced by Modulation-assisted machining
Characterizing Residual Stress Gradients Due to Shot Peening: Comparison Between X-ray and Nanoindentation Techniques
Combined EBSD and HRDIC Study of Strain Gradients in the Presence of Grain Boundaries
Combining X-ray Diffraction Contrast Tomography and Topo-tomography to Study In-situ the Mechanics of Polycrystalline Materials
Cyclic Deformation in Tension and Compression of Pure Aluminium Monitored In-situ by High-resolution Reciprocal Space Mapping
Deformation Mechanisms in Irradiated Materials Revealed by in situ High Energy Synchrotron X-rays
Discrete Dislocation Dynamics Investigation of Partial Dislocation interaction with γ’ Precipitates in Nickel- and Cobalt-based Superalloy
Effect of Creep Deformation on the Strain Heterogeneities Localization Inside Complex Microstructures Found within Centrifugally Cast HP40Nb Reformer Tubes
Effects of the Orientation of the α β Interphase on the Time-dependent Fatigue Behavior of Ti-6Al-4V
Elastic and Plastic Field Measurement During Deformation of Polycrystalline Metallic Materials by Heaviside Digital Image Correlation
Evaluation of the Serration Behavior Characterized as Strain Localization in High-Mn Austenitic Steel
Grain - Scale Mechanical Characterization of Alpha-Titanium Using Spherical Indentation Stress-Strain Protocols
Hierarchical Microstructure in Shear Bands of Pure Titanium
High-throughput Elevated Temperature Nanomechanical Mapping of Fe-based Alloys
In-situ Mapping of Twin Related Local Stress Fields in HCP Titanium
Influence of Grain Boundary Mediated Deformation on the Ductility of Freestanding Metallic Thin Films
Influence of Plastic Deformation on the Disorder → Order Transformation in 18 Carat Red Gold Alloys Studied by In-situ High-energy X-ray Diffraction
Integrating Thermal Desorption Spectroscopy and Scanning Electron Microscopy
Investigating the Microstructure and Mechanical Behavior Relationship of Advanced Titanium Alloys Using High-energy Diffraction In-situ Tensile Testing
Investigation of Residual Stress Using High Resolution XRD and Localized Lattice Rotation Under Fatigue Loading
K-1 (Digital): Computational Polarized Light Microscopy for Large Area Orientation Determination of Uniaxial Materials
K-10: Imaging Microplasticity Events by Combining High Energy Diffractive Microscopy and Bragg Coherent Diffractive Imaging
K-14: Slip and Twinning of Commercial Pure Titanium during In-situ Tensile Test
K-15: Thermal Corrections for Gleeble Right Circular Cylinder Compression Tests
K-16: Thermo-mechanical Simulation of Steam Turbine Blade with Spark Plasma Sintering Developed NiCrCoTiAlW-Ta Superalloy Properties
K-17: Transient Texture Evolution During Friction Stir Processing of a Mg Alloy Revealed by In-situ Neutron Diffraction
K-18: Understanding Deformation Mechanisms in a Low Ni/Co Alloy
K-19: Understanding the Deformation Mechanisms and Phase Transformations in High Alloy Metastable Austenitic Steels
K-2: Propagating Uncertainty through ICME Modules and Machine Learning towards Quicker and Accurate Distortion and Residual Stress Predictions
K-3: 3D Characterization of Nano-scale Precipitates in Shape-memory Alloys
K-5: Characterization of Metal Powders for Spreadability and Flow Modeling
K-6: Characterizing the Influence of Microstructure on Twin Nucleation in Ferroelastic Ceramics
K-7: Comparative Analysis of Bulk and Local State of Thin Film Viscoelastic Material on a MEMS Device Using Dynamic Nanomechanical Characterization
K-8: Determination of Strains in Clear Teeth Aligners for Orthodontics
K-9: Ex-situ and In-situ X-ray Studies of Crystal Structure and Microstructure Evolution in Metallic Alloys Under Extreme Environments
Low Strain Grain Boundary Deformation and Damage
Measurement of Power Law Creep Parameters by Nanoindentation
Measurement of Strain Rate Sensitivity by the Constant Load and Hold Indentation Method: A Case Study in Calcium Fluoride
Measurement of the Thermal Expansion of Ti-7Al Using High Energy X-ray Diffraction Microscopy
Micromechanical Characterization of Single-crystalline Silicon at Elevated Temperature
Micron-scale Characterization of Twinning and Dislocation Slip in Magnesium Single-crystals by Advanced In-situ Techniques
Microscratch-induced Deformation Twins in Mg Single Crystals
Microstructure Evolution During Dynamic Compression in Titanium Characterized with the XFEL at LCLS-2
More than Crystal Plasticity: Multiphysics in DAMASK
Quantitative X-ray Phase Contrast Imaging of Granular Media under Dynamic Impact
Revealing the Role of Microstructure Architecture on Strength and Ductility of Ni Microwires by In-situ Synchrotron X-ray Diffraction
Revisiting the Wilkens Function: a Discrete Dislocation Dynamics-based Study of Strain Broadening in Diffraction Profiles
Room Temperature Interface Sliding in TIMETAL-407
Simulated STEM-DCI Imaging of Dislocations in High-entropy Alloys
Simulations of Grain Boundary-dislocation Interactions in FCC Nickel
Size Effects in Dislocation-mediated Pore Growth
Slip and Hydrides in Zirconium
Solute Interaction with Dislocation Cores in α-iron: an Atom Scale Experimental Study
Strain Hardening of Al-Cu Alloys Investigated with In-situ Neutron Diffraction
Study of the Interplay of Basal Slip Activities and Double Twinning Mechanism in Magnesium Using SEM In-situ Tensile Tests Concurrently with HR-EBSD
The Critical Microstructural Conditions for Void Nucleation During Ductile Rupture: Dislocation Structures and Vacancy Condensation
The Effects of Defects on the Mechanical Properties of Au Microparticles
Three-dimensional Faceted Boundaries of Different Twin Modes in hcp Metals
TRIP/TWIP of Structural Metallic Alloys for Performance in Extreme Environments
Understanding Functional Fatigue with 3D In-situ Grain Map Reconstructions Using High-energy Diffraction Microscopy
In situ Synchrotron and EBSD Study of H-induced Local Stresses
{10-12} Twin Boundary Segregation of Y in Mg Alloys

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