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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Nanostructured Materials in Extreme Environments
Presentation Title Radiation Instability of Thermally Stable Nanocrystalline Pt-Au System
Author(s) Ryan Michael Schoell, Chris Barr, Douglas Medlin, Dave Adams, Yasir Mahmood, Remi Dingreville, Fadi Abdeljawad, Brad Boyce, Khalid Hattar
On-Site Speaker (Planned) Ryan Michael Schoell
Abstract Scope Nanocrystalline microstructures are desirable due to their improved mechanical strength as well as providing sinks for radiation damage; however, the far-from-equilibrium nature of a nanocrystalline microstructure often leads to grain growth under various external stimuli such as thermal, mechanical loading, and radiation. In this work, we show how stability to one external stimulus does not mean stability to other external stimuli. Specifically, we show how a nanocrystalline Pt-10Au system is relatively stable under thermal and mechanical loading but not irradiation using high energy Au ions. A combination of Scanning Transmission Electron Microscopy (STEM) Energy Dispersive Spectroscopy (EDS), high resolution STEM, and modeling was used to illuminate the possible mechanisms of grain growth under different external stimuli and explain why microstructural stability only occurs under specific stimuli. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.
Proceedings Inclusion? Planned:
Keywords Characterization, Nanotechnology, Environmental Effects

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Grain Boundary Solute Drag in Regular Solution Alloys
A New Type of Nuclear Materials: Nanocrystalline ODS Steels
A Stable and Irradiation Resistant Ultrafine-grained Aluminum Crossover Alloys
Anomalous Mechanical Behavior of Nanocrystalline Binary Alloys under Extreme Conditions
Can Engineered Nanostructures Enhance the Performance of Tungsten for Extreme Environments?
Characterization of Newly Developed Nanolubricants for Space Applications
Coarsening Kinetics in Surface-doped Nanoporous Metals
Cobalt-60 Gamma-Ray Irradiation Effects in Aerosol Jet Printed Two Dimensional Materials
Coupled Extreme Environments the True Challenge for Nuclear Materials
Critical Assessment of Grain Size Stability and its Role on Microstructure Preservation Under Extreme Stimuli
Cu NW Degradation Under High Vacuum Environment
Defect Transport and Microstructural Evolution in Irradiated Nanocrystalline Oxides
Design Amorphous Ceramic Composites Through Tailoring Compositions and Heterogeneities
Dislocation Cells in Additively Manufactured Metallic Alloys Characterized by Electron Backscatter Diffraction Pattern Sharpness
Enhanced Corrosion Resistance of Nanostructured Pyrochlore and its Mechanistic Understanding
Enhanced Thermomechanical Stability of Nanolamellar Composites Containing Thick 3-dimensional Interfaces
Experimental and Computational Studies of Defect and Microstructure Evolution under Irradiation in Cathode Battery Materials
Exploring the Shear Localization in Metallic Nanolayered Composites via Atomistic Simulations
G-22: Development of Nanostructured Ferritic Superalloys for Nuclear Environments
G-23: Scalable Fabrication and Mechanical Response of Composites with Nano-architected Features
Global Compositional Patterning and Self-organization in Irradiated Alloys
Influence of Hydrostatic Pressure on Impurity Segregation in Nanocrystalline Metals
Interface Mediated Strain at High Temperatures
Irradiation and Corrosion Behavior of Nanostructured Grade 91 and FeCrAl Alloys for Nuclear Applications
Irradiation Effects in Nanostructured Ceramics
Irradiation Response of Nanostructured HEAs
Layering and Interfacial Effects on Radiation Resistance of Covalently-bonded Materials
Micromechanics of Strain Localisation and Damage in a Spinodal Bronze
Microstructural Dependence of Defect Formation in Iron-oxide Thin Films
Microstructural Evolution in Dilute Nanocrystalline Al Alloys During Ion-irradiation
Microstructural Evolution of Refractory-based Nanomultilayers at Elevated Temperatures
Microstructure Characterization of Ion-irradiated Nano-grained Ni-Mo-Cr Alloy using Diffraction Line Profile Analysis
Multi-scale Framework to Simulate the Long-term Diffusion Radiation-induced Defects in Nano-crystalline Materials
Multicomponent Nanostructured Al-based High-performance Alloys for Elevated Temperature Structural Applications
Nanoindentation Measurements at Combined High Strain Rates and Elevated Temperatures
Nanoscale Templating of Reinforcing Phases with Linear Complexions to Achieve Extreme Strength
Nanostructured BCC Materials for Applications in Extreme Environments
Nanostructured Ferritic Alloys for Advanced Nuclear Reactors
Nanostructured Mechanical Martensites in Ni Alloys: Defects and Ordering Effects
Nanostructured Metallic Materials with Thick Grain Boundaries
Nanostructured Metals with Dispersed Nanoparticles
Nanotwin Stability under Temperature-dependent Deformation States
Nb Solubility in Cu Grain Boundaries
No Ball Milling Needed: Alternative ODS Steel Manufacturing with Gas Atomization Reaction Synthesis (GARS) and Friction-based Processing
Oxidation Resistance of Silicon-Boron Coatings on TZM Molybdenum Alloy
Phase Stability and Nanomechanical Behavior of Laser Direct Metal Deposited Concentrated Fe-Cu Alloys
Radiation Instability of Thermally Stable Nanocrystalline Pt-Au System
Review of Irradiation-induced Grain Growth in Nanocrystalline FCC Metals
Role of Electronic Energy Loss on Interface Stability of Nanostructured High-Entropy Alloys
Shock Compression of Nanocrystalline Boron Carbide from Deep Learning Molecular Dynamics Simulations
Solute Partitioning and its Influence on Stability and Mechanical Behavior in Nanocrystalline Alloys
Stability and Behavior of MoS2 in Extreme Radiation Environments
STEM-based Mapping of Point Defects Produced via He-ion Irradiation
Strength, Plasticity and Stability of Dual Phase Ti-SiOC Ceramic Nanocomposites
Study of the Microstructural Evolution of Ultrafine-grained Austenitic Stainless Steel Irradiated by Neutrons by Atom Probe Tomography and Transmission Electron Microscopy
Study on Advanced Cementing Practices using Inert Graphene Nanoplatelets and Hydraulic Fracturing Fluids for Wellbore Integrity and Sustainability
The Role of Chemical Short-range Order on Defects Migration and Evolution in Multi-principal Element Alloys
The Role of Grain Boundaries in the Morphological Instabilities of Nanoscale Geometries
The Role of Surface Treatment on Material Performance in High Temperature Molten Salt
Thermal Stability and Mechanical Properties of Nanostructured High-entropy Alloys and Quasicrystals
Uncovering the Transition from Helium Clustering to Bimodal Cavity Distributions in Tungsten
Understanding the Superior Strength and Localized Plasticity in Nanotwinned Ni-Mo-W Alloys

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