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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Advanced Thermo-mechanical Characterization of Materials with Special Emphasis on In Situ Techniques
Presentation Title In-situ Imaging and Diffraction Studies of Shear Band Nucleation and Propagation in Metallic Glass and Composites
Author(s) Jia Chuan Khong, Jiawei Mi
On-Site Speaker (Planned) Jiawei Mi
Abstract Scope In this work, we studied in situ the nucleation and propagation of shear bands under tension in a ZrTi bulk metallic glass and a composite. A micrometre-size semi-circular or circular stress concentrator was introduced onto the miniature dog-bone shaped samples to facilitate the initiation of shear bands. This arrangement allows the nucleation and propagation of shear bands under tensile loads to be controlled in a quasi-static manner, and then studied in situ systematically using electron imaging. To measure the local stresses/strains in front of the shear bands at different loads, samples were tested under the identical conditions at a synchrotron X-ray beamline. Diffraction patterns were acquired at the locations/paths where shear bands were observed, and the local stresses/strains field were calculated based on the acquired diffraction patterns. The imaging and diffraction studies provide complimentary information on how shear band propagation is controlled by the local stress field ahead.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Greater Understanding of Deformation in BCC Nanocrystalline Metals Using Quantitative In Situ TEM Techniques
A New Designed Rig for In Situ Neutron Diffraction Creep Experiments under Different Boundary Conditions
Advanced In Situ Loading Environments for High Energy Synchrotron X-ray Experiments
Characterizing Thermal- and Moisture-induced Glass Transitions Using Nanoindentation-based Dynamic Mechanical Analysis
Crystal Size and Temperature Effects on the Transformation in Deformation Modes in Twin Oriented Mg Single Crystals
Development of a High Temperature Tensile Tester for Micromechanical Characterization of Materials Supporting Meso-Scale ICME Models
Dislocation Drag Coefficient Measurements via In-situ Micropillar Compression Experiments
Dislocation Shielding as a Function of Temperature in Microscale Silicon Bending Beams
Effect of Ausforming on Isothermal Transformation Below Ms in NiCrMoV Steel Studied by In-situ Neutron Diffraction
Elevated Temperature Mechanical Properties of Three Component Nanolaminate Thin Films
Extraction of Crystal Plasticity Parameters of IN718 Using High Temperature Microcompression
Grain Growth and Mechanical Behavior of Nanostructured Intermetallic Films Studied Using In Situ TEM Annealing and Tensile Straining
In-SEM Microscale Mechanical Testing of Thin Film Plastic Flow and Interfacial Integrity
In-situ Analysis of the Tensile Deformation Modes and Anisotropy of Extruded Mg-10Gd-3Y-0.5Zr (wt.%) at Elevated Temperatures
In-situ Experiments Combining SEM and X-ray Computed Tomography
In-situ Imaging and Diffraction Studies of Shear Band Nucleation and Propagation in Metallic Glass and Composites
In-situ Micro-Laue Diffraction and HR-EBSD Investigation to Understand the Microstructure-deformation Interactions in Dual-phase Titanium Alloy, Ti6242, Using Micro-pillar Compression
In-situ Neutron Diffraction Analysis for Dynamic Ferrite Transformation Behavior in Low-carbon Steels
In Situ 4D Tomographic Examination of Semi-solid Indentation Behaviour in Ni and Co Based Alloys
In Situ Characterization of Electromigration and Thermal Cycling Damage and Grain Growth in Cu/Pure Sn/Cu Solder Joints
In Situ Micro-mechanical Testing of Ion Irradiated Materials
In Situ TEM Imaging of Defects in Metallic Samples Deforming at High Strain Rates
In Situ TEM Study of Atomic Level Phase Transformation in Cerium-based Oxides during Redox Processes
In Situ Thermo-mechanical Characterization of Materials
In Situ X-ray Diffraction Study of Strain Path Change Effects in Al-5wt% Mg (AlMg5) Using a Miniaturized Multiaxial Deformation Machine
Influence of Dislocation Density and Grain Boundaries on the Scaling Behaviour of Ultrafine-grained BCC Micropillars
Investigating Grain Rotations in Ultrafine-grained Aluminum Films Using In Situ TEM Straining with Automated Crystal Orientation Mapping
L-10: Deformation Characteristics of NiTi Alloys
L-11: High Temperature Dynamic Mechanical Response of Titanium Alloys
Local Strains and Crack Initiation in Lamellar Gamma-TiAl
Micro-Mechanical Characterization of Micro-Architectured Tungsten Coating at Elevated Temperatures
Multiscale 3D Imaging of Damage in an Angle-Interlocked Ceramic Matrix Composite under In-Situ Mechanical Loading Using Lab X-Ray Microscopy
Optimum Layer Thickness for High Temperature Mechanical Properties of ARB Cu/Nb Nanoscale Multilayers
Plasticity and Time Dependent Stress Relaxation in FCC Nanowires
Plasticity of Nano-Sized Metallic Glasses
Probing the Dynamic Response of Ordered Lattice Materials
Progress in In-situ Testing in the Electron Microscope at Cryogenic Temperatures
Pushing the Envelope in Variable Temperature Nanoindentation: High and Cryogenic Temperature Measurements
Site-Specific Mechanical Evaluation Using Microscale Samples Tested In Situ within SEM and XCT
Understanding the Local Ligament-level Deformation Response in Unit Cell Lattices
Unusual Brittle to Ductile Transition in Single Crystalline Silicon: In Situ Micro-scale Fracture Studies at Elevated Temperature
Unveiling the Micromechanical Response of Mg Alloys by EBSD-assisted Slip Trace Analysis
In-Situ Thermo-mechanical Characterization of Serrated Flow in Nanostructured Binary Mg-Al Alloys

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