ProgramMaster Logo
Conference Tools for 2023 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Deformation-induced Manipulation of Defect Structures and Hierarchical Microstructures
Presentation Title The Role of Deformation Induced Defects on Phase Evolution in High Entropy Alloys
Author(s) Abhishek Sharma, Sriswaroop Dasari, Bharat Gwalani, Mohan Sai Kiran Nartu, Yao-Jen Chang, Stephane Gorsse, An-Chou Yeh, Rajarshi Banerjee
On-Site Speaker (Planned) Rajarshi Banerjee
Abstract Scope Though a fine scale second phase distribution is a potent strengthening mechanism for alloys, achieving high precipitate density is often difficult owing to sluggish precipitation kinetics and limited heterogeneous nucleation sites. More specifically in case of transition element based complex concentrated alloys (CCAs) or High Entropy Alloys (HEAs), precipitation of equilibrium phases, e.g., ordered B2 or sigma phase, can be limited due to their high nucleation barrier for homogeneous precipitation within the face-centered cubic (FCC) matrix. This can lead to the competing homogeneous nucleation of a metastable ordered L12 phase which has a substantially lower nucleation barrier. Using different CCAs/HEAs as examples, deformation processing has been employed to introduce a large number density of homogeneously distributed heterogeneous nucleation sites within the FCC matrix, to manipulate the phase fraction, morphology, and distribution of the equilibrium precipitates. This approach of tailoring microstructure is widely applicable to other multi-component alloys including RHEAs.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Phase Transformations, Shaping and Forming

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Novel Warm Rolling Induced Microstructure Modification for Evading Strength-Ductility Trade-off in Medium Manganese Steel
Deformation Induced Hierarchical Twinning in Titanium Alloys
Deformation Mechanisms in Cu-Nb Nanolayered Composite under Pico-indentation and Tribological Testing
Deformation of Fe-Rich, Co-Free Multi-Principal Element Alloys at Multiple Strain Rates and Temperature Conditions
Dynamically Reversible Shear Transformations in a CrMnFeCoNi High-entropy Alloy
Effect of Pre-straining on High Strain Rate Compression Behavior of a Complex Concentrated Alloy Exhibiting Transformation Induced Plasticity
Exploiting Hydrogen Segregation Effects for Controlling Microstructure Evolution
Exploring Joining Mechanism for Immiscible System: Friction Stir Welding of Pure Mg and Pure Fe
Grain Refinement and Microstructural Evolution in AM High Entropy Alloys through SPD and Thermomechanical Processing
Microstructural Inelastic Deformation and Fracture Modes in Crystalline Materials
Nanostructural Hierarchy in Metallic Materials for Extended High Temperature Stability
Phase Stability in Alloys during Severe Plastic Deformation in the High Strain Limit
Processing Heterostructures Using Deformation Techniques
Role of Cold Sprayed Microstructure on Tensile and Fatigue Behavior for AA7075
Self-lubricating Ni-based Superalloy Composites Processed by Severe Plastic Deformation
The Role of Deformation Induced Defects on Phase Evolution in High Entropy Alloys
Under Pressure - Exploring the Synergy of High Pressure Deformation Mechanisms of Metals and Rocks
Universal Trend in the Non-Equilibrium Evolution of Metastable Grain Boundaries at Extreme Conditions

Questions about ProgramMaster? Contact programming@programmaster.org