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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Heterostructured and Gradient Materials (HGM V): New Mechanistic Discoveries Enabling Superior Properties
Presentation Title Heterogeneous Microstructure Driven Strength-ductility Synergy in Laser Powder Bed Additively Manufactured Alloys
Author(s) Rajiv S. Mishra
On-Site Speaker (Planned) Rajiv S. Mishra
Abstract Scope There is significant interest in alloys with heterogeneous microstructures, particularly for strength-ductility synergy. The timing of research on heterogeneous and gradient alloys coincides very well with tremendous volume of research on laser powder bed additive manufacturing (LPBAM). While the component design opportunities with LPBAM have been discussed very widely, the potential of control of site-specific microstructure in components has not received that much attention. In this overview presentation, the opportunity to tailor the microstructure will be highlighted. Our work on novel Al alloys designed for printability-performance synergy during LPBAM provided a nice window for obtaining heterogeneous microstructure. The fundamentals behind this approach will be presented. These finding can be generalized to other alloys, and to properties beyond the strength-ductility paradigm. A few general guidelines will be discussed.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Mechanical Properties, Aluminum

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Application of Harmonic Structure Design to a CrMnFeCoNi High Entropy Alloy
Constitutive Model and Finite Element Analysis of Heterostructured Materials
Defect-interface Interactions and Nanomechanical Behavior of 3D interfaces in Ti/Nb Nanolaminates
Deformation Domains in Heterogeneous Nanostructured Inconel
Deformation Mechanisms in Laser Processed Nano-eutectics
Design of Heterostructured High Entropy Alloys for Superior Mechanical Properties at Cryogenic-to-ambient Temperatures
Designing Materials with Heterogeneous Microstructure via Additive Manufacturing
Effect of Grain Refinement on Plastic Deformation and Fracture in a Si-added High-Mn Austenitic Steel
Gradient Bulk Nanostructures with Exceptional Strength via High Load Sliding
Heterogeneous Microstructure Driven Strength-ductility Synergy in Laser Powder Bed Additively Manufactured Alloys
High Strength and Ductility in a Heterostructured Nanotwinned Ni Film
Improving Local Fracture Properties of W-CuZn Nanocomposites by Microstructure Tailoring
In Situ Pillar Compression to Understand Dislocation-grain Boundary Interactions in Cu
Influence of Strain Gradients in Heterostructured Nanomaterials
L-47-Invited Poster: Chemically-induced Gradient Nanostructures
L-48: Mechanical Properties and Microstructural Evolution of High-pressure Torsion-processed Al7068 Alloy
L-49: Microstructures and Nanomechanical Behavior of Laser Processed Sr-modified Al-Si Eutectic
L-50: Towards a Novel Approach for Integrating Tungsten and Reduced Activation Ferritic Martensitic Steel for Fusion Reactors
Mechanical Anisotropy Effects on Strength and Deformability in Nanolaminates Containing 3D Interfaces
Mechanics of Extremely Heterogeneous Materials
Modeling of Back Stresses in Additively Manufactured Stainless Steel
Multiscale and Hierarchical Laminated Steel Structures with Superior Strength-ductility Synergy via Additive Manufacturing
Progress in Heterostructured Materials
Quasi-static and Dynamic Mechanical Behavior of Metal Composites with Co-continuous Phase Distributions
Significant Bauschinger Effect and Back Stress Strengthening in an Ultrafine Grained Pure Aluminum Fabricated by Severe Plastic Deformation Process
Strain-dependent Phase Transformation Mapping of Diffusion-bonded Nanocrystalline Aluminum-magnesium by High-energy Synchrotron X-rays
Strengthening Mechanisms in a Heterostructured and Antimicrobial Stainless Steel
Strengthening of 3D Printed Cu Micropillar in Cu-Ni Core-shell Structure
Ultrahigh Strength and Strain Localizations in Nanotwinned Ni-Mo-W Alloys
Understanding Interfacial Kinetic Processes during Sintering to Enable Heterostructuring
Work Hardening and Radiation Response of Gradient Alloys

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