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Meeting Materials Science & Technology 2013
Symposium Structure – Property Relationships in Low-Dimensional Metallic Nanostructures
Presentation Title Tailoring Mechanical Behavior of Nanotwinned Metals through Structural Design
Author(s) Ryan T Ott, Eun Soo Park, Yinmin Wang, Frederic Sansoz, Matthew F Besser
On-Site Speaker (Planned) Ryan T Ott
Abstract Scope Nanotwinned (nt) metals exhibit high strengths, but unlike their nanocrystalline counterparts can also exhibit large uniform tensile ductility. Both the strength and ductility in nt metals are strongly dependent on the structure, which can be controlled via the deposition rate, substrate cooling, solute additions, etc. By designing specific structures, we can also vary the plasticity mechanisms that control the bulk mechanical response. To examine these mechanisms, we have utilized real time synchrotron X-ray scattering coupled with bulk mechanical testing along with nanoindentation and modeling to study the deformation behavior of nt Ag and Cu synthesized by magnetron sputtering. We discuss how the plasticity mechanisms vary between the two metals and for different structures of the same nt metal. Moreover, we discuss the effects of defective twin boundaries on the plasticity mechanisms.
Proceedings Inclusion? Definite: A CD-only volume


Ab-initio Evaluation of the Mechanical and Transport Properties of Pure and Contaminated Nanowires under Tensile Deformation
Atomistic Modeling of Creep of Nanocrystalline Metal
Coherency and Stability in Nanotwinned Cu
Coupling of Materials Properties at the Nanometer Length Scale
Development of High Strength and High Ductility Metals Using Atomic and Nanometer Scale Strain Non-localization Approach
Effect of Deposition on the Mechanical Behavior of Cr Films on Polyimide
Effect of Size and Processing Conditions on the Consolidation of Nanocrystalline Metal Powders
Extrinsic Effects on the Martensitic Transformation in Shape Memory Alloys with Nanometer Scale Dimensions
Fivefold Twin and Surface Groove Induced Abnormal Size and Temperature Dependent Yielding in Ag Nanowires
In Situ Nanomechanics of Electrode Failure in Lithium-ion Batteries
Influence of Nanoscale Components of Non-metallic Inclusions on Weld Metal Microstructure Formation
Investigating Deformation Mechanisms in Source-limited Materials Using In Situ TEM Nanomechanical Testing
Mechanical Performance of Nanotwinned Ag and CuAl Foils
Molecular Dynamics Simulation of Al Oxide Stress Corrosion Cracking
Nanocrystalline and Nanotwinned Metallic Materials under Extreme Radiation Environment
Nanoindentation Size Effects in Bimetallic Nickel-gold Nanowires
Strain Rate Dependent Mechanical Properties in Metal Nanowires
Tailoring Mechanical Behavior of Nanotwinned Metals through Structural Design

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