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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium In Operando Nano- and Micro-mechanical Characterization of Materials with Special Emphasis on In Situ Techniques
Presentation Title Benchmarking Multi-scale Models through Micro-mechanical Testing and Characterization of Ni-base Superalloys
Author(s) , Zafir Alam, Paul Shade, Michael Uchic, Will Lenthe, Tresa Pollock, Kevin Hemker
On-Site Speaker (Planned)
Abstract Scope Multi-scale deformation models depend on detailed characterization and experimental benchmarks obtained at salient length scales. Micro-tensile samples of polycrystalline Rene 88 have been machined from bulk material through the use of femtosecond laser and FIB techniques. Scale specific micro-tensile experiments were carried out to support parallel multi-scale modeling efforts. Meso-scale characterization allowed for collection of key microstructural features, such as grain size, shape and orientation for a finite number of grains that are tractable in crystal plasticity modeling. The development of a high temperature micro-tensile setup capable of achieving temperatures up to 1200 C now also allows for the characterization and benchmarking of mechanical behavior across a broad temperature regime. Moreover, digital image correlation (DIC) was employed to develop local strain maps, which can now be directly compared with crystal plasticity predictions. Connecting explicit intergranular microstructures to their attendant mechanical behavior opens a valuable pathway for model development and validation.
Proceedings Inclusion? Planned: A print-only volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Novel in Situ Bending Test in the micro/nano-Scale
An Experimental Investigation of Deformation Mechanisms in FCC Thin Films
An In Situ Load Stage to Combine 3D X-ray Tomography with Nanomechanical Testing
Ascertaining the Role of Microstructure on Fatigue Crack Initiation and Propagation in Rene-88 DT Ni-base Superalloy at Room Temperature
Benchmarking Multi-scale Models through Micro-mechanical Testing and Characterization of Ni-base Superalloys
Characterization of High Temperature Crack Tip Plasticity and Size Effect in Alloy 617 Using Nanomechanical Raman Spectroscopy and High Temperature Indentation
Cyclic Electro-mechanical Behaviour of Ductile Films Examined with In-situ Methods
Deformation Induced Structural Changes in Solid and Liquid Lubricant Films Studied by In Situ Raman Tribometry
Deformation Mechanisms in Micro-Scale Specimens of Polycrystalline Ti-6242
Deformation of Nanoscale Composite Structures and Heterophase Interfaces
Direct Imaging of Mechanically or Thermally Induced Grain Structure Changes in Nanocrystalline Metals
Electromechanical Properties of Individual BiFeO3 Nanowires
Exploring the Mechanical Behavior and Microstructure Evolution of Twin-twin Junctions in Mg by In Situ Compression
Hardness Anisotropy of Single Crystal Calcite Indented with Three-sided Indenters
In-situ Fracture Testing of Microscale Silicon at Elevated Temperatures
In-situ High-energy X-ray Investigation of Plastic Deformation and Damage Evolution in Polycrystalline Cu-5%W Composite
In-situ Micromechanical Testing Using Correlated 3-D X-ray and 2-D Electron Microscopy Analyses
In-situ Testing in the Electron Microscope at High and Low Temperatures
In Situ Corrosion-Fatigue of 7075 Aluminum in 3.5 wt% NaCl
In Situ High Strain Rate Tensile Testing in the Dynamic TEM
In Situ Irradiation Induced Creep Measurements on Micropillar Specimens at Elevated Temperatures
In Situ Nanomechanical Properties of Diffusion Aluminide Bond Coating at Elevated Temperature
In Situ Raman Spectroscopy-based Imaging of the Spatial Distribution of Phases Induced during Instrumented Indentation of Silicon
In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals
In Situ TEM Dislocation Characterization and Strain Mapping of Al 5754
In Situ TEM Investigation on the Mechanical Behaviour of Micronanoscaled Single Crystal Titanium and Magnesium
Indentation: Evolution and Application
Investigation of Deformation Twinning under Complex Stress States in a Rolled Magnesium Alloy
Investigation of Pressure-Induced Phase Transformation in Rare-Earth Orthophosphates by In-Situ Raman Spectroscopy
Layer Thickness Effects on the Strength and Deformation Mechanisms of Al/SiC Nanolaminates
Local Strain Measurements during In Situ TEM Deformation with Nanobeam Electron Diffraction
Measurement of Localized Deformation in Superalloys with Heterogeneous Microstructures
Measurement of Micro Strains in Amorphous Ti45Al55 Thin Films using Selected Area Diffraction during in situ TEM Straining.
Measurement of Stress for Dislocation Nucleation & Motion through In Situ Indentation
Micro-scale Fracture Behavior of Co Based Metallic Glass Thin Films
New Methodology to Accurately Measure the Onset of Yield Point:
Novel In-situ Mechanical Test within an X-ray Microscope
Onset of Slip Activity in Ti6Al4V Single Colonies: Role of Alpha/Beta Interfaces
Oxygen Induced Softening of Deep-submicron Cu Nanopillars
Shape Memory Properties and Martensitic Transformation in Shape Memory Ceramics at the Micro- and Nanoscale
Size and Strain Rate-dependent Deformation Behavior of Metallic Glass Nanoparticles
Suppression of Plastic Instability in Submicron FCC Crystals with Ultrahigh Strength
Temperature and Dislocation Density Effects on Size Dependent Plasticity Mechanisms
The Exponent 3/2 Instead of 2 on h for Conical/Pyramidal Indentation: Physical Foundation and Unprecedented Applications
Towards Nanoscale In-situ Fatigue and Fracture Experiments in the TEM
Understanding the Ultra High Strength of Ni Micro-wires from In-situ Deformation Study under X-rays
Unveiling 3D Deformations in Carbon Fiber Reinforced Polymer Composites by Coupled micro X-Ray Computed Topography and Volumetric Digital Image Correlation

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