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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Multiscale Architectured Materials (MAM II): Tailoring Mechanical Incompatibility for Superior Properties
Presentation Title Atomistic and Mesoscale Modeling Investigation of Deformation Mechanisms in Heterogeneous Materials
Author(s) Shenyang Hu
On-Site Speaker (Planned) Shenyang Hu
Abstract Scope Experiments show that a heterogeneous structure such as bimodal and gradient structures could improve both materials strength and ductility. However, it is not well understood what are the synergy mechanisms of deformation in such a heterogeneous microstructure and what kind microstructures have optimal strength and ductility. This talk will present atomistic and mesoscale modeling capability for studying the effect of heterogeneous microstructures on deformation mechanisms and mechanical properties. A phase-field model of crystal plasticity was developed to investigate the non-uniform deformation response and deformation-induced recrystallization in polycrystalline structures. Molecular dynamics method is employed to explore the deformation mechanisms in nano-crystalline structures. The bimodal Cu and/or Fe crystals are taken as model structures. The effect of the microstructures on elastic-plastic deformation is investigated. Both atomistic and mesoscale simulation results reveal that microstructures with a soft phase embedded in a hard phase matrix can improve both materials strength and ductility.
Proceedings Inclusion? Undecided


A Deformation Mechanism by Correlated Necklace Dislocations in Nanotwinned Materials
Atomistic and Mesoscale Modeling Investigation of Deformation Mechanisms in Heterogeneous Materials
Chemical Etching of Ti Lattice Structures Manufactured by Electron Beam Melting: Influence on the Stiffness of the Octet-Truss Structures and Modeling of the Dissolution Kinetics at the Scale of Individual Struts
Deformation Mechanisms in Multiscale Architectured Harmonic-structured Nickel
Designing High Fracture Toughness Nanocomposites via In Situ TEM Approach
Designing Lightweight Composite Cellular Architectures
Designing Optimal Bimodality in Harmonic Architectured Materials Using Statistical Synthetic Model
Development and Compressive Deformation of Polymer-metallic Microcellular Structures
Effect of Gradient on Mechanical Behavior of Ni Based Gradient Materials
Effect of Initial Oxide Layer on the Growth and Morphology of Intermetallic Layer in Fe-based MIL Composites
Engineering the Ductile Crack Path by Controlling the Microstructure
Fatigue Behavior of Gradient Nanograined Cu
Gradient Nanostructure and Residual Stresses Induced by Ultrasonic Nano-crystal Surface Modification for Improved Mechanical Properties
Gradient Nanostructured Silicon through High Power Pulsed Laser-driven Shock Compression
Heterogeneous Structures: A New Paradigm for Designing Super Strong and Tough Materials
High-strength, Light-weight Hierarchical Materials Based on 3D Direct Laser Writing
High Temperature Plasticity of Cu-Cr Nanolayered and Chemically Nanostructured Cu-Cr Films
Homogeneous Plastic Deformation in Heterogeneous Lamella Structures
Impact Behavior of Lattice Structures Produced by Selective Laser and Electron Beam Melting
Improved Balance of Mechanical Properties in Cryomilled Al-Mg Alloy Through Thermomechanical Processing
Improving Composite Ductility through Corrugated Reinforcement Architecture
Interfacial Incompatibilities and Crystalline Deformation and Failure
Investigation of Effects of Microstructural Heterogeneity on Mechanical Properties Using Samples Prepared by Park Plasma Sintering
Iron-aluminum Metallic-intermetallic Laminate (MIL) Composites
L-172: Principle of One-step Synthesis for Multilayered Structures Using Tube High-pressure Shearing
L-173: Fabrication of Functionally Graded Materials via Asymmetric Cold Rolling
Laminar Bulk Metallic Glass/Metal Composites Via Accumulative Roll Bonding
Materials by Design: 3-Dimensional Nano-Architected Meta-Materials
Mechanical Behavior and Deformation Mechanism of Gradient Structured Cu Alloys with Varying Stacking Fault Energy
Mechanics of Single-wire Entangled Architected Materials
Multi-scale Cu/Nb Nanocomposite Wires Processed by Severe Plastic Deformation for High Pulsed Magnets: Assessing Size and Architecture Effects on the Resistance to High Stress
Multi-scale Modelling of Mechanical Behavior and Deformation in Materials with Gradient Microstructures
Multi Scale Modeling of Mechanical Behavior of Covalently Cross-linked SWCNT Aerogels
Multilayered and Functionally Graded Materials for Optimized Galvanic Corrosion Protection
Multiscale and Multiphase Structures Obtained by Large Deformation Processes to Achieve Unique Properties Combinations
Multiscale Architectured Materials with Composition and Grain Size Gradients Manufactured Using High-pressure Torsion
Nanolaminated Structures in Metals Induced by Plastic Deformation with High Strain Rates and Strain Gradients
Novel Contributions to Deformation and Properties in Gradient Materials
Properties of Metallic Lattices Used as Hosting Structures
Self-assembled Nanoparticle Superlattices with High Elastic Modulus
Simultaneous High Strength and Ductility in Nickel Induced by Nanodomains with Size Effects
Stabilization of Nanocrystalline Fe-Zr Alloys by Nanoscale Zr-rich Clusters
Strain Incompatibility and Ductility in a Gradient Nanostructure of IF Steel
Stress and Strain Gradients in a Low Carbon Steel Deformed under Heavy Sliding
Superior Combinations of High Strength and Ductility in Compositionally Graded Martensitic Steels
Suppression of Surface Fatigue Cracking in Steels with a Gradient Nanostructured Surface Layer
Surface Gradient Architectured Materials Processed by Severe Plastic Deformation via Surface Abrasion Torsion
Tailoring the Mechanical Properties of Nanolaminates Processed by Accumulative Roll Bonding
Taming Microstructure of Nanostructured Alloy through the Concurrence of Phase Transition and Grain Growth
Tensile Behaviors of Gradient Nano-grained Copper at 77K
Tensile Properties of Heterogeneous Structures Embedded with Nanotwins
The Austenite/Martensite Interface
The Development of Deformation Heterogeneity in Cu/Nb Lamellar Composites Predicted by Nonlocal Single Crystal Plasticity
The Thermal-mechanical Compromise for Insulation Materials
Toughening of Meso-structured Materials in Additive Manufacturing
Tuning Heterogeneity in Metals for Better Hardenability and Deformability: Examples from TWIP Steels and High Entropy Alloys
Ultra-strong and Ductile Nanotwinned Steel
Unique Deformation Behavior of Harmonic Structure Materials with High Strength and High Ductility

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