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About this Abstract
Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Mechanical Behavior at the Nanoscale VIII
Presentation Title Estimating the Tensile Strengths of Additively Manufactured Metals via High-Throughput Hardness Testing
Author(s) Yu-Keng Lin, Mengchen Li, Ching-Hao (Cliff) Yu, Jenn-Ming Yang, Y. Morris Wang
On-Site Speaker (Planned) Ching-Hao (Cliff) Yu
Abstract Scope Indentation hardness measurement has enabled high-throughput optimization of metal additive manufacturing (AM) processes for energy applications. The tensile yield strengths of AM metals can also be derived via the well-known Tabor equation that converts hardness to flow stress. A natural question arises whether the default proportionality constant (C = 3) in the Tabor equation still applies to metals made by AM. Using experimental results and literature data, we investigated the hardness-strength relationship of several representative face-centered cubic metals fabricated via laser powder-bed-fusion and laser directed-energy-deposition. Results indicate that the hardness-strength relationship of AM metals could be influenced by process-induced features. In this talk, we will present our findings and insights to improve the effectiveness of hardness testing as a cost-efficient and practical approach for evaluating the strength of AM metals.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Mechanical Properties, Iron and Steel

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A First-Principles Kinetics Model for Directional Growth and Stability of High-Entropy Oxide Nanoribbons
A Mechanistic Framework Differentiating Nanoindentation-Induced Plasticity and Fracture Using Muscovite as a Model Layered System
A Spherical Nanoindentation LUR Approach to Study Inelastic Back Strain on a Local Level
Anisotropic Creep Properties of Beta-Sn Measured by Constant Contact Pressure Nanoindentation Creep: Experiments and Modeling
Atomistic Mechanism of Grain Boundary Network Evolution in Metallic Materials
Atomistic Mechanisms of Grain Boundary Sliding in Nanocrystalline Metals
Atomistic Simulation and Machine Learning of the Mechanical Behavior of Σ5 Cu-Ag Grain Boundaries
Combining Nanoindentation Mapping and Machine Learning to Sense Particles Below the Surface
Comparison of Hardening and Microstructures of Structural Alloys Irradiated With Fast Neutrons and Dual Ions
Comparison of Mechanical Properties of Cu–Al Thin Films Using MEMS-Based Tensile Testing and Nanoindentation
Constrained Four-Point Bending of Single Crystal Microbeams
Deformation Behavior of Thermomechanically Processed and Ion Irradiated Tungsten Using Nano-Indentation
Ductility and Brittle Fracture of Tungsten by Disconnection Pile-up on Twin Boundaries
Effect of Helium Bubble on Mechanical Properties of CoCrCuFeNi High-Entropy Alloys With Varying Composition
Electroplasticity and Photoplasticity of Ionic Crystals and Semicondutors at Small Length Scales
Estimating the Tensile Strengths of Additively Manufactured Metals via High-Throughput Hardness Testing
Evaluating Intrinsic-Extrinsic Size Effect Relationship for Small-Scale Mechanical Tests Using Conventional and Nanocrystalline Copper
Evaluating the Full Elasticity Tensor of Boron Carbide via Nanoindentation
Evaluation of Methods to Determine Uniaxial Stress-strain Curves From Nanoindentation
Exploring Alternate Routes for Fracture Toughness Evaluation of Molecular Crystals Through Nanoindentation
Extraordinary Mechanical Behavior of Al-(Si-Ge) Univariant Ternary Nano-Fibrous Eutectics
Finite-Size Scaling and Scale-Invariant Strain Hardening Exponent in Micropillar Plasticity
Finite Element Modeling of Copper-Tungsten Metal Matrix Composite Powder Particles Under Quasi-Static Micro-Compression
From Cryogenic Flow to High-Temperature Instabilities: Dislocation Mechanics of {110} Slip in a BCC High-Entropy Alloy
Giant Superelasticity at the Nanoscale in Cu-Al-based Shape Memory Alloys Associated With a Double Martensitic Transformation
Grain Boundary Mediated Extreme Superplasticity in BCC Tungsten Nanowires
High-Resolution Nanoindentation Mapping of Heterogeneous Nanostructured Inconel 725 Coatings
High-Temperature MEMS for In Situ Creep and Fatigue Testing Under Irradiation Extremes
High Strain-Rate Behavior of Metal-Ceramic Nanolaminates by Laser-Induced Microprojectile Impact
High Strain Rate Deformation of Dewetted B2-Iron Aluminide Intermetallic Microparticles
In-Situ HRTEM for Atomic-Scale Plasticity Events (Twinning and Shear Band Processes in Nanoscale Refractory Crystals)
In Situ Atomic-Resolution Study of Dislocation Behavior Upon Loading Conditions
In Situ TEM Investigation of the Effect of Stable Grain Boundaries on Plastic Deformation Mechanisms and Mechanical Properties of Pt-Au Alloys
Influence of Indenter Shape on the Deformation and Delamination of Thin Films
Interface-Mediated Deformation Transition and Quantum Confinement Effects in Ta₂O₅/SiO₂ Optical Nanolaminates
Mapping Mechanics of Nanoporous Mo/Cu Architectures Through Experiments and Atomistic Simulations
Mechanical Behavior and Size–Dependent Strength of Small Noble-Metal Nanoparticles
Mechanical Behavior of Marginal Metallic Glasses Governed by Medium-Range Order and Nanoscale Structure
Mechanical Property of Irradiated and Unirradiated HEA From Nanoindentation
Micromechanical Properties of Single Crystalline Diamonds Beyond Fracture
Microstructural Control and Mechanical Behavior of Additive Manufactured Cr-Ni-X Eutectic Alloys
Modeling Nanoindentation Hardness and Elastic Modulus of High Entropy Alloy for Accelerated Qualification
Moisture-Dependent Transverse Isotropic Elastic Constants of Wood S2 Secondary Cell Wall Layers Determined Using Nanoindentation
Multiscale Understanding of Ferroelasticity in Shape Memory Ceramics
Nanomechanical Fracture Behavior Along Distinct Lamellar Interfaces in an Advanced TiAl Alloy
New Insights Into the Fracture Behavior of Multilayered Thin Films Using In-Situ Microcantilever Bending
Non-Conventional Nano-Precipitates Formation in Fast Solidified Al Alloys: A Machine Learning-Augmented Modeling Study
Pathway-Dependent Drivers of Abnormal Grain Growth in Nanocrystalline Ni Thin Films Revealed by In-Situ TEM and EBSD
Phase Field Modeling of Slip Transfer in Thick Biphase Interfaces in FCC/BCC Nanolaminates
Plastic Anisotropy in Nanoporous Metals: Effect of Crystalline Orientation and Topology
Plasticity at the Crystalline Metal/Amorphous Oxide Interface in Al/Al2O3 Nanolaminates
Plasticity in Brittle Intermetallics Enabled by Interfaces
Quantification of Mechanical Defect Relaxation With Microscale Resolution
Quantifying the α-Lath Size Effects in Titanium From Three-Dimensional Discrete Dislocation Dynamics Simulations
Quantitative Criteria for Deformation Modes Selection in Metastable Beta-Titanium Alloys
Revealing Temperature Dependent Deformation of Metallic Microstructures Through Thermo-Mechanical Nanomolding
Shear and Compressive Molecular Dynamics Simulations of Copper Columnar Nanotwins
Silica Glass Nanolattices With Superior Instability Resistance via Free-From Shape Optimization
Strain-Induced Failure and Interfacial Electronic Anisotropy in Oxidized Silicon Nanowires
Studying the Evolutionary Mechanisms of Void Nucleation at Grain Boundary Regions in the Ductile Failure of Polycrystalline Tantalum Using Spherical Nanoindentation
Thermal Stability of Cu-Mo Nanometric Metallic Multilayers: A Molecular Dynamics Study
Towards Accurate Nanocrystalline Aluminum Simulations: A Comparative Analysis of MEAM and Machine Learning Potentials
Understanding Multi-Scale Fracture Toughness in CeO₂-Stabilized Zirconia Ceramics
Understanding the Evolution of Local Ordering in Complex Alloys by 5D-STEM
Wear Across Scales: A Study of Surface Deformation Processes in Advanced Alloys
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