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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Heterostructured and Gradient Materials (HGM IV): Tailoring Heterogeneity for Superior Properties
Sponsorship TMS Structural Materials Division
TMS: Mechanical Behavior of Materials Committee
Organizer(s) Yuntian Zhu, City University of Hong Kong
Kei Ameyama, Ritsumeikan University
Irene J. Beyerlein, University of California, Santa Barbara
Yves Brechet, Grenoble Institute of Technology
Huajian Gao, Nanyang Technological University
Hyoung Seop Kim, Pohang University of Science and Technology
Ke Lu, Institute of Metal Research
Xiaolei Wu, State Institute of Mechanics, Chinese Academy of Sciences
Scope This is the fourth international symposium, which will focus on the fundamental science and technology of Heterostructured and Gradient Materials (HGM), which include, but are not limited to, heterostructured materials, gradient materials, laminate materials, dual-phase materials, harmonic (core-shell) materials, etc. HGM is characterized with large differences in mechanical behaviors among heterostructured zones. The large mechanical incompatibility leads to strong inter-zone interactions. This produces back stress in the soft zones and forward stress in the hard zones, which collectively produce hetero-deformation induced (HDI) strengthening to enhance yield strength and extra HDI work hardening, in addition to conventional dislocation hardening, to retain ductility. This unique deformation behavior is reported to produce a superior combination of high strength and high ductility that is not accessible to either nanostructured or coarse-grained homogeneous materials.

HGMs represent an emerging class of materials that is expected to become a major research field for the communities of materials, mechanics and physics in the next few years. The HGM strategy is not only capable of producing structural materials with unprecedented mechanical properties, but also efficient for developing multifunctional materials. Innovative top-down or bottom-up approaches and material architectures, some of which may be bio-inspired, need to be explored and developed to produce HGMs with superior or disruptive properties. There are many fundamental issues that need to be studied by experiments, analytical modeling and computer modeling. Particularly, interface engineering and interface-related phenomena such as strain banding, strain gradient near zone interfaces, geometrically necessary dislocations, and evolution and interaction of internal stressed are critical issues. This symposium, and the future biannual symposia that follow, will act as a forum to bring multidisciplinary researchers together to exchange ideas, discuss key issues, and promote industrial technology development for commercial production and applications.

Abstracts Due 07/20/2020
Proceedings Plan Planned:

Analysis of Inertially Dampened Structure in High Strain Rate Impacts
Backstress Development and Strain Partitioning in Harmonic-structure Materials
Chemical Gradients to Control Stability and Mechanical Behavior in Nanostructured Pt-Au
Cu-Fe Based Immiscible Medium-entropy Alloys with Excellent Tensile Properties
Effect of Alloying Additions on the Strength of Confined Nanocrystalline Layers
Effect of Layer Spacing and Elastic-plastic Mismatch on Fracture Toughness of Ti-TiN Multilayers
Effect of Rolling on Fatigue Crack Propagation in Harmonic Structured Commercially Pure Titanium
Effects of Constituent Properties on Propagating Stress Waves in Multiphase Composites
Enhanced Mechanical Properties in 3D Interface Metallic Multilayers
Enhanced Mechanical Properties of Interface-strengthened UFG Tungsten and Tungsten-based Nanocomposites
Evolution of Diffusion Joint of Al-steel Clad Strip during Heat Treatment
Exploring the Grain Size Stability of Heterogeneous Copper in Thermal, Mechanical and Radiation Environments
Gradients, Singularities and Interatomic Potentials
Grain-boundary Delamination-induced Toughening in 2 GPa Deformed and Partitioned Steel
Heterogenous Nanostructured Nickel Superalloy
Heterostructured Materials: An Emerging Materials Field with Great Potential
Heterostructured Ultrafine-grained Metallic Materials with Enhanced Superplasticity and Superior Strength
Hierarchical 3D Nanolayered Duplex-phase Zr with High Strength, Strain Hardening, and Ductility
Hierarchical Morphologies in Co-sputter Deposited Immiscible Alloy Thin Films
High Strength and Low Coercivity Cobalt with Three-dimensional Planar Defects Introduced by Heterogeneous Coherent Interface
High Strength and Tensile Ductility in Bicrystalline Nickel Thin Films with Incoherent Twin Boundaries
Hydrogen Charging Behavior of Gradient Structured High-Mn Steels
Interface Affected Plasticity in Accumulative Roll Bonded FCC/BCC Metallic Laminates
Interface Engineered Tungsten Based Nanocomposites and Nanofoams for Harsh Environments
Lattice Defect Development in Harmonic Metals through Atomic Simulations
Mechanical Enhancement of Graded Nanoporous Structure
Mechanical Properties and Structural Stability of a Bulk Nanostructured Metastable Aluminum-magnesium
Microstructure Dependence of Strain Partitioning and Localization in Heterostructured Metals
Multi-layered Gradient Structure by Single-roll Angular-rolling and Ultrasonic Nanocrystalline Surface Modification
Nanoscale Heterogeneity and Gradients Engineered by Compositional Defect Decoration and Manipulation: The Atomic Scale Basis of Segregation Engineering
Nucleation of New Deformation Modes in Nanostructured Metals
Optimizing Wear and Corrosion Resistance of Metallic Multilayers through Atomic-scale Design
Origin of Enhanced Ductility in Laser Rapid Solidified Heterogeneous Hypereutectic Al-20Si Alloy: Slip Interactions between Soft Al Matrix and Hard Si Fibers?
Outstanding Mechanical Properties in a Harmonic Structure Designed Titanium Due to Preferential Recrystallization
Shape Memory Alloys: Using Heterostructure-induced Defects to Train Thermo-mechanical Response
Site-specific Texture Control for Functionally Graded Structures of Stainless Steel 316L Manufactured by Selective Laser Melting
Size Effect Issue on the Fatigue Properties of Ti-6Al-4V Designed in Heterogeneous Harmonic Structure
Solid-tsate Additive Manufacturing of Heterostructured Materials via Additive Friction Stir Deposition
Synthesis and Mechanical Characterization of Metallic Films with Precisely Defined Heterogeneous Microstructures
Thickness-dependent Shear Localization in Cu/Nb Metallic Nanolayered Composites
Tuning the Strongest Size by Tailoring Grain Size Gradient in Metals
Unique Hall-petch Relation in Harmonic Structure Materials
Work Hardening of Gradient FeCrAl Alloy: An In- situ Micropillar Compression Study
Yielding in a Metallic Nanocomposite at the Nanoscale

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