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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Heterostructured and Gradient Materials (HGM V): New Mechanistic Discoveries Enabling Superior Properties
Sponsorship TMS Materials Processing and Manufacturing Division
TMS Structural Materials Division
TMS: Shaping and Forming Committee
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
Yuri Estrin, Monash University
Huajian Gao, Nanyang Technological University
Ke Lu, Institute of Metal Research
Suveen N. Mathaudhu, Colorado School of Mines
Xiaolei Wu, State Institute of Mechanics, Chinese Academy of Sciences
Scope This is the fifth international symposium that focuses on the fundamental science and technology of Heterostructured and Gradient Materials (HGMs). These include, but are not limited to, heterostructured lamella materials, gradient materials, layered materials, dual-phase materials, harmonic (core-shell) materials, heterostructured composites, etc. HGMs are characterized by large differences (100%) in mechanical behaviors and properties among heterostructured zones. The large mechanical incompatibility leads to strong inter-zone interactive coupling. This produces back stresses in the soft zones and forward stresses in the hard ones, which collectively produce hetero-deformation induced (HDI) strengthening. This distribution enhances the yield strength and produces extra strain hardening above conventional dislocation hardening, promoting ductile behavior. This unique deformation behavior is reported to produce a superior combination of high strength and high ductility that is not achievable with either nanostructured or coarse-grained homogeneous materials.

HGMs represent an emerging class of materials that are expected to become a major field of scientific exploration for the materials, mechanics and physics communities in the coming years. The HGM strategy is not only capable of producing structural materials with unprecedented mechanical properties, but is also effective 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. Many fundamental issues still need to be studied by experimentation, analytical modelling, and numerical simulations. Particularly, interface engineering and key interface-related phenomena, such as dispersive strain bands, strain gradients, geometrically necessary dislocations and their interactions with zone boundaries, as well as the emergence and evolution of internal stresses, need to be addressed. This symposium, and the future biannual symposia to follow, will be a forum for bringing together a diverse group of multidisciplinary researchers to exchange ideas, discuss key issues, and promote industrial technology development for commercial production and applications.

Abstracts Due 07/17/2022
Proceedings Plan Planned:

Application of Harmonic Structure Design to a CrMnFeCoNi High Entropy Alloy
Chemically-Induced Gradient Nanostructures
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
Design of high strength and wear-resistance β-Ti alloy via oxygen-charging
Designing Heterogeneous Nanostructures in High Entropy Alloys by Thermomechanical Processing
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
Extra plasticity induced by shear band deflection in gradient metallic glass
Gradient bulk nanostructures with exceptional strength via high load sliding
Gradient cell structured high-entropy alloy with superior mechanical behavior
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
Introducing hierarchical heterogenous structures using additive manufacturing for superior mechanical properties
Is an Internal Length Gradient (ILG) Extension of Classical Laws Necessary for Understanding Gradient Materials?
Mechanical Anisotropy Effects on Strength and Deformability in Nanolaminates Containing 3D Interfaces
Mechanical properties and microstructural evolution of high-pressure torsion-processed Al7068 alloy
Mechanics of extremely heterogeneous materials
Microstructures and Nanomechanical Behavior of Laser Processed Sr-modified Al-Si Eutectic
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
Slip, Twins, and Voids: Damage micromechanics of nanotwinned materials
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
Surface Plasma Hardening: Formation of Gradient Structure in Rail Steel
Towards a Novel Approach for Integrating Tungsten and Reduced Activation Ferritic Martensitic Steel for Fusion Reactors
Trifunctional nanoprecipitates enabling ductile submicron-laminated metastable titanium alloys ultrastrong
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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