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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Deformation Induced Microstructural Modification
Presentation Title In-situ Analysis of Microscale Deformation and Fracture in Severely Deformed Polycrystalline Tungsten
Author(s) Lara Draelos, Zachary Levin, Ankit Srivastava
On-Site Speaker (Planned) Lara Draelos
Abstract Scope At room temperature polycrystalline tungsten undergoes intergranular brittle fracture with no appreciable ductility. The brittle fracture of tungsten poses significant hurdles for many applications that would benefit from its other attractive properties such as, high density, high melting temperature and high strength. Recent works have shown that the morphology of grains and texture of polycrystalline tungsten can be tuned to significantly enhance its damage tolerance. Here we have carried out in-situ compression tests of polycrystalline tungsten processed via severe plastic deformation to yield lamellar grain morphology and strong texture. In addition, the effect of relatively low temperature post-process annealing is also considered. Our in-situ tests coupled with microscale digital image correlation allows us to capture both the macroscopic response and the distribution of microscopic deformation and strains. In this presentation we attempt correlate the material microstructure, microscale deformation and strain measurements with the observed macroscopic response of the material.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A First Principles Criterion for Microstructure Evolution in Deformation Twinned FCC Materials
Analysis of Al 6061 and Mild Steel Joints from Rotary Friction Welding
Cyclic Deformation and Fatigue Behavior of 316L Stainless Steel Processed by Surface Mechanical Rolling Treatment
Deformation at a Single Precipitate Using a Nanocube Model System
Deformation Induced Precipitation (DIP) in Light Alloys: Theory and Experiments
Effect of Cryogenic Equal Channel Angular Pressing on Mechanical Behavior and Microstructure of Pure Copper
Effect of Loading Path on Grain Misorientation Evolution in Polycrystalline Al under Large Deformation
Evolution of Mechanical Properties and Microstructure in Accumulative Roll Bonded FCC/BCC Metallic Composites
Extreme Shear-deformation-induced Modification of Defect Structures and Hierarchical Microstructure in Immiscible Alloy
Fabrication of Ultrafine Grained Ferritic Steels by Combining Dynamic Transformation and Dynamic Recrystallization
Grain Boundary Segregation in Nanocrystalline Alloys: Multicomponent, Anisotropy, and Stress Effects
Grain Refinement and Bimodal Distribution of Precipitates in Al 6xxx and 7xxx Alloys during ShAPE (Shear Assisted Processing and Extrusion)
Harnessing Thermomechanical Processing to Influence Texture in ARB Cu/Nb Composites
Hierarchical Microstructure in Shear Bands of Pure Titanium
High Pressure Torsion Processed Maraging Steels: Microstructure and Mechanical Behaviour
In-situ Analysis of Microscale Deformation and Fracture in Severely Deformed Polycrystalline Tungsten
In Situ Analysis of Microstructural Evolution of Metallic Alloys under High Speed Rotational Shear Deformation
Influence of Deformation on Microstructure of Al4Si and Cu4Nb Alloys during Friction Stir Processing: A Multi-modal Microstructural Characterization Study
Influence of Shear Rolling on Microstructure and Properties of Low-density Steels
Introductory Comments: Deformation Induced Microstructural Modification
Investigation of Path Dependent Microstructural Evolution in Cu-Nb System Processed via Friction Consolidation
Low Temperature Superplasticity in Al 5083 Produced by Accumulative Roll Bonding
Mg-Fe Bonded Interface Using FaST
Microstructural Changes in Nanotwinned Metals under Various Deformation Modes
Microstructural Evolution and Deformation Mechanisms in Segregation-Engineered Nanocrystalline Al Alloys
Microstructure-based Modeling of Impact-Induced Plastic Deformation
Modeling the Bonding and Structure of Non-metallic Inclusions within a Nickel Matrix during Forging
Molecular Dynamics Simulations of Defect Structure Evolution under Shear Deformation in Polycrystalline Al
Optimization of Continuous Casting Products and High Aluminium-Magnesium Alloys Utilization in Automotive Industry Applications
Phase Evolution in Two-phase Alloys during Severe Plastic Deformation
Probing Microstructural Evolution in Deformation with Electrons and X-rays
Synchrotron X-ray Probing Dynamic Structural Change of Materials under Shear Deformation by High-speed Rotational Diamond Anvil Cell
Tailoring the Mechanical Performance in Novel Zn-Ag-Mg Alloy Processed by Cold Plastic Deformation Processes
The Effect of Processing Parameters on the Microstructure and Performance of Ni-Mn-Ga Alloys
The Unusual Effect of HPT Processing on Microstructure and Mechanical Properties in Zn-alloys
Thermomechanical Processing of Dilute Mg-Zn-Ca Alloys

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