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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Deformation-induced Manipulation of Defect Structures and Hierarchical Microstructures
Presentation Title A Novel Warm Rolling Induced Microstructure Modification for Evading Strength-Ductility Trade-off in Medium Manganese Steel
Author(s) Avanish Kumar Chandan, Gyanaranjan Mishra, Kaushal Kishore, Jay Chakraborty
On-Site Speaker (Planned) Avanish Kumar Chandan
Abstract Scope In the present work, modification of microstructure via a novel warm rolling (WR) treatment is shown to overcome the strength-ductility trade-off in a medium manganese steel. Controlled generation of dislocations (~1015 m-2) in the constituent austenite and ferrite phases along with introduction of twins in the austenite phase, both induced by WR fetched a 32% improvement in YS as compared to the conventional intercritically annealed (IA) specimen. Additionally, austenite stability regulation via dislocations led to simultaneous improvement in UTS and ductility by 12% and 6%, respectively, as compared to the IA specimen. YS (~952±8 MPa), UTS (~1252±13 MPa) and ductility (~30±3 %) obtained in the warm-rolled specimens was significantly high considering the composition of the steel i.e. without any microalloying. The present study demonstrates an approach to tailor the defect microstructure for escaping the near-ubiquitous strength-ductility paradox in metastable FCC alloys such as stainless steel, HEAs, TWIP steels etc.
Proceedings Inclusion? Planned:
Keywords Characterization, Mechanical Properties, Phase Transformations

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

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